阅读说明：本技术 车辆转向比的调整方法、装置及存储介质 (Method and device for adjusting vehicle steering ratio and storage medium ) 是由 罗军 于 2021-10-29 设计创作，主要内容包括：本申请公开了一种车辆转向比的调整方法、装置及存储介质,涉及车辆转向技术领域,该方案解决了现有的线控转向系统中需要反复调试转向比的技术问题,从而改善了用户体验。该方法包括：接收驾驶员对方向盘的转向操作,获取第一方向盘转角极值；基于第一方向盘转角极值,结合前轮转角极值与工况的对应关系,确定转向比与工况的对应关系；在车辆行驶过程中,基于转向比与工况的对应关系,根据车辆的工况调整车辆的转向比。(The application discloses a method and a device for adjusting a vehicle steering ratio and a storage medium, relates to the technical field of vehicle steering, and solves the technical problem that the steering ratio needs to be repeatedly debugged in the conventional steer-by-wire system, so that the user experience is improved. The method comprises the following steps: receiving steering operation of a driver on a steering wheel, and acquiring a first steering wheel rotation angle extreme value; determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle; and in the running process of the vehicle, adjusting the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relation between the steering ratio and the working condition.)

1. A method of adjusting a steering ratio of a vehicle, comprising:

receiving steering operation of a driver on a steering wheel, and acquiring a first steering wheel rotation angle extreme value;

determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle;

and in the running process of the vehicle, adjusting the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relation between the steering ratio and the working condition.

2. The method for adjusting a steering ratio of a vehicle according to claim 1, wherein before the receiving of the steering operation of the steering wheel by the driver and the obtaining of the first extreme steering wheel angle, the method further comprises:

calling a first data analysis model, and determining a second steering wheel corner extreme value based on the user information of the driver, the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; the first data analysis model is obtained according to the first sample data; the first sample data at least comprises mapping relations of user information, vehicle type information, parameter information and steering wheel corner extreme values;

determining a steering wheel angle extreme value interval according to the second steering wheel angle extreme value and a third steering wheel angle extreme value, wherein the third steering wheel angle extreme value is determined according to a steer-by-wire system performance extreme value of the vehicle;

displaying the steering wheel corner extreme value interval and first prompt information; the first prompt information is used for prompting the driver to perform steering operation based on the steering wheel corner extreme value interval.

3. The method for adjusting a steering ratio of a vehicle according to claim 2, wherein the determining a steering wheel angle extremum section based on the second steering wheel angle extremum and the third steering wheel angle extremum includes:

comparing the third steering wheel angle extreme value with the second steering wheel angle extreme value, and determining the value with the smaller value in the second steering wheel angle extreme value and the third steering wheel angle extreme value as the maximum value of the steering wheel angle extreme value interval; and determining a preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.

4. The method of adjusting a vehicle steering ratio according to claim 1, wherein before determining the correspondence between the steering ratio and the operating condition based on the first extreme steering wheel angle in combination with the correspondence between the extreme front wheel angle and the operating condition, the method further comprises:

calling a second data analysis model, and determining the corresponding relation between a first front wheel steering angle extreme value and working conditions based on the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; the second data analysis model is obtained according to second sample data; the second sample data at least comprises vehicle type information, parameter information, a mapping relation of a working condition and a front wheel steering angle extreme value;

determining the corresponding relation between the extreme value of the front wheel steering angle and the working condition according to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition and by combining the corresponding relation between the extreme value of the second front wheel steering angle and the working condition; and the corresponding relation between the second front wheel steering angle extreme value and the working condition is determined according to the steer-by-wire system performance extreme value of the vehicle.

5. The method for adjusting a vehicle steering ratio according to claim 4, wherein determining the correspondence relationship between the extreme front wheel steering angle and the operating condition according to the correspondence relationship between the extreme first front wheel steering angle and the operating condition in combination with the correspondence relationship between the extreme second front wheel steering angle and the operating condition comprises:

based on the corresponding relation between the first front wheel corner extreme value and the working condition and the corresponding relation between the second front wheel corner extreme value and the working condition, comparing the sizes of the first front wheel corner extreme value and the second front wheel corner extreme value under different working conditions, and determining the smaller value of the first front wheel corner extreme value and the second front wheel corner extreme value under different working conditions as a target front wheel corner extreme value to obtain the corresponding relation between the front wheel corner extreme value and the working condition.

6. The method of adjusting a vehicle steering ratio according to claim 4, characterized by further comprising:

collecting driving data in the driving process of a vehicle; the driving data at least comprises working conditions and extreme values of front wheel rotation angles;

and under the condition that the collected driving data meet preset conditions, updating the second sample data by the driving data, and obtaining a second data analysis model again according to the updated second sample data.

7. The method for adjusting a steering ratio of a vehicle according to claim 1, wherein before the receiving of the steering operation of the steering wheel by the driver and the obtaining of the first extreme steering wheel angle, the method further comprises:

displaying a turn ratio setting mode, the turn ratio setting mode including at least one of: a fixed steering ratio mode and a user-defined steering ratio mode;

and receiving the triggering operation of the driver on the self-defined steering ratio mode, and starting the self-defined steering ratio mode.

8. The method for adjusting a steering ratio of a vehicle according to any one of claims 1 to 7, wherein after determining the correspondence relationship between the steering ratio and the operating condition, the method further comprises:

receiving the trigger operation of the driver on the virtual driving control, and starting a virtual driving mode;

in the virtual driving process, based on the corresponding relation between the steering ratio and the working conditions, displaying the motion state of the vehicle under different working conditions according to the operation of the driver on the steering wheel;

after the virtual driving is finished, judging whether an instruction of adjusting the steering ratio by the driver is received or not;

if so, displaying a steering ratio setting mode, and re-determining the corresponding relation between the steering ratio and the working condition;

if not, applying the corresponding relation between the steering ratio and the working condition to the vehicle, and exiting the steering ratio setting mode.

9. An apparatus for adjusting a steering ratio of a vehicle, comprising:

the receiving module is used for receiving the steering operation of a driver on a steering wheel and acquiring a first steering wheel rotation angle extreme value;

the determining module is used for determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle;

and the adjusting module is used for adjusting the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relation between the steering ratio and the working condition in the running process of the vehicle.

10. The adjusting device of the vehicle steering ratio is characterized by comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through the bus;

when the adjusting device of the vehicle steering ratio is operated, the processor executes the computer-executable instructions stored in the memory to cause the adjusting device of the vehicle steering ratio to execute the adjusting method of the vehicle steering ratio according to any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that instructions are stored therein, which when executed by a computer, cause the computer to execute the method of adjusting a vehicle steering ratio according to any one of claims 1 to 8.

Technical Field

The embodiment of the application relates to the technical field of vehicle steering, in particular to a method and a device for adjusting a vehicle steering ratio and a storage medium.

Background

In a conventional steering system of an automobile, a steering wheel of the automobile is mechanically connected with front wheels, and a ratio (i.e., a steering ratio) between a rotation angle of the steering wheel and a rotation angle of the front wheels of the automobile is a constant value when a driver operates the steering wheel. Such a steering system with a fixed steering ratio cannot meet the steering demands of different users. The provision of the steer-by-wire system cancels the mechanical connection between the steering wheel and the front wheels, so that the steering ratio can be adjusted according to the requirements of users, and the control of the vehicle is more flexible.

In the existing steer-by-wire system, a driver can input a desired steering ratio in a vehicle-mounted display screen, and a vehicle steering ratio acquisition device can adjust the steering ratio according to the input of the user. However, in the existing steer-by-wire system, the driver cannot intuitively feel the maximum rotation angle of the steering wheel under different steering ratios, the steering ratio can be adjusted to the steering ratio meeting the self-demand only by repeatedly debugging the steering ratio, and the change of the vehicle state and the driving condition cannot be adapted after the steering ratio is set, so that the user experience is influenced.

Disclosure of Invention

The application provides a method and a device for adjusting a vehicle steering ratio and a storage medium, which solve the technical problem that the steering ratio needs to be debugged repeatedly in the existing steer-by-wire system and improve the user experience.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a method for adjusting a steering ratio of a vehicle, comprising: receiving steering operation of a driver on a steering wheel, and acquiring a first steering wheel rotation angle extreme value; determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle; and in the running process of the vehicle, adjusting the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relation between the steering ratio and the working condition.

In the technical scheme provided by the application, a driver can steer the steering wheel before driving according to own requirements, and the steering wheel is turned to an expected maximum turning angle (namely, a first steering wheel turning angle extreme value in the application). Because the steering ratio is the ratio of the steering wheel angle to the front wheel steering angle, the corresponding relationship between the steering ratio meeting the driver's requirement and the working condition can be determined according to the first steering wheel steering angle extreme value and the corresponding relationship between the predetermined front wheel steering angle extreme value and the working condition. Therefore, in the running process of the vehicle, the steering ratio can be adjusted according to the determined corresponding relation between the steering ratio and the working condition and the real-time working condition. It can be seen that in the technical scheme provided by the application, a driver only needs to turn the steering wheel to the expected maximum turning angle before driving, and does not need to repeatedly input the steering ratio for debugging, so that the steering ratio can be adjusted to the required steering ratio according to the real-time working condition in the driving process, and the user experience is greatly improved.

Optionally, in a possible design, before the "receiving the steering operation of the steering wheel by the driver and obtaining the first extreme steering wheel angle" is received, the method may further include:

calling a first data analysis model, and determining a second steering wheel corner extreme value based on user information of a driver, vehicle type information of a vehicle and parameter information of the vehicle under different working conditions; the first data analysis model is obtained according to the first sample data; the first sample data at least comprises mapping relations of user information, vehicle type information, parameter information and steering wheel corner extreme values;

determining a steering wheel angle extreme value interval according to the second steering wheel angle extreme value and a third steering wheel angle extreme value, wherein the third steering wheel angle extreme value is determined according to a steer-by-wire system performance extreme value of the vehicle;

displaying a steering wheel corner extreme value interval and first prompt information; the first prompt information is used for prompting the driver to perform steering operation based on the steering wheel corner extreme value interval.

Optionally, in another possible design, the "determining the steering wheel angle extremum interval according to the second steering wheel angle extremum and the third steering wheel angle extremum" may include:

comparing the third steering wheel angle extreme value with the second steering wheel angle extreme value, and determining the value with the smaller value between the second steering wheel angle extreme value and the third steering wheel angle extreme value as the maximum value of the steering wheel angle extreme value interval; and determining the preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.

Optionally, in another possible design, before determining the corresponding relationship between the steering ratio and the operating condition based on the first extreme steering wheel angle value and in combination with the corresponding relationship between the extreme front wheel angle value and the operating condition, the method may further include:

calling a second data analysis model, and determining the corresponding relation between the first front wheel steering angle extreme value and the working condition based on the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; the second data analysis model is obtained according to the second sample data; the second sample data at least comprises vehicle type information, parameter information, a mapping relation of a working condition and a front wheel rotation angle extreme value;

determining the corresponding relation between the extreme value of the front wheel steering angle and the working condition according to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition and by combining the corresponding relation between the extreme value of the second front wheel steering angle and the working condition; and determining the corresponding relation between the second front wheel steering angle extreme value and the working condition according to the steer-by-wire system performance extreme value of the vehicle.

Optionally, in another possible design, the determining the correspondence between the extreme value of the front wheel steering angle and the operating condition according to the correspondence between the extreme value of the first front wheel steering angle and the operating condition in combination with the correspondence between the extreme value of the second front wheel steering angle and the operating condition may include:

and comparing the sizes of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions based on the corresponding relation between the first front wheel steering angle extreme value and the working conditions and the corresponding relation between the second front wheel steering angle extreme value and the working conditions, and determining the smaller value of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions as a target front wheel steering angle extreme value to obtain the corresponding relation between the front wheel steering angle extreme value and the working conditions.

Optionally, in another possible design, the method for adjusting a steering ratio of a vehicle provided by the present application may further include:

collecting driving data in the driving process of a vehicle; the driving data at least comprises working conditions and extreme values of the front wheel rotation angle;

and under the condition that the acquired driving data meet the preset conditions, updating the second sample data by the driving data, and obtaining a second data analysis model again according to the updated second sample data.

Optionally, in another possible design, before the "receiving the steering operation of the steering wheel by the driver and obtaining the first extreme steering wheel angle" is received, the method may further include:

displaying a turn ratio setting mode, the turn ratio setting mode including at least one of: a fixed steering ratio mode and a user-defined steering ratio mode;

and receiving the triggering operation of the driver on the self-defined steering ratio mode, and starting the self-defined steering ratio mode.

Optionally, in another possible design, after the determining the correspondence between the steering ratio and the operating condition, the method may further include:

receiving the triggering operation of a driver on a virtual driving control, and starting a virtual driving mode;

in the virtual driving process, based on the corresponding relation between the steering ratio and the working conditions, the motion states of the vehicle under different working conditions are displayed according to the operation of the driver on the steering wheel;

after the virtual driving is finished, judging whether a command of adjusting the steering ratio by the driver is received or not;

if so, displaying a steering ratio setting mode, and re-determining the corresponding relation between the steering ratio and the working condition;

if not, applying the corresponding relation between the steering ratio and the working condition to the vehicle, and exiting the steering ratio setting mode.

In a second aspect, the present application provides a vehicle steering ratio adjusting apparatus, including an obtaining module, a determining module, and an adjusting module;

the acquisition module is used for receiving the steering operation of a driver on a steering wheel and acquiring a first steering wheel corner extreme value;

the determining module is used for determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle;

and the adjusting module is used for adjusting the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relation between the steering ratio and the working condition in the running process of the vehicle.

Optionally, in a possible design, the device for adjusting a steering ratio of a vehicle provided by the present application further includes: a display module;

the determining module is further used for calling the first data analysis model before the obtaining module obtains the first steering wheel corner extreme value, and determining a second steering wheel corner extreme value based on the user information of the driver, the model information of the vehicle and the parameter information of the vehicle under different working conditions; the first data analysis model is obtained according to the first sample data; the first sample data at least comprises mapping relations of user information, vehicle type information, parameter information and steering wheel corner extreme values;

the determining module is further used for determining a steering wheel angle extreme value interval according to the second steering wheel angle extreme value and a third steering wheel angle extreme value, and the third steering wheel angle extreme value is determined according to a line control steering system performance extreme value of the vehicle;

the display module is used for displaying the steering wheel corner extreme value interval and the first prompt message determined by the determination module; the first prompt information is used for prompting the driver to perform steering operation based on the steering wheel corner extreme value interval.

Optionally, in another possible design manner, the determining module is specifically configured to:

comparing the third steering wheel angle extreme value with the second steering wheel angle extreme value, and determining the value with the smaller value between the second steering wheel angle extreme value and the third steering wheel angle extreme value as the maximum value of the steering wheel angle extreme value interval; and determining the preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.

Optionally, in another possible design, the determining module is further configured to:

before the corresponding relation between the steering ratio and the working condition is determined, calling a second data analysis model, and determining the corresponding relation between the first front wheel steering angle extreme value and the working condition based on the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; the second data analysis model is obtained according to the second sample data; the second sample data at least comprises vehicle type information, parameter information, a mapping relation of a working condition and a front wheel rotation angle extreme value;

determining the corresponding relation between the extreme value of the front wheel steering angle and the working condition according to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition and by combining the corresponding relation between the extreme value of the second front wheel steering angle and the working condition; and determining the corresponding relation between the second front wheel steering angle extreme value and the working condition according to the steer-by-wire system performance extreme value of the vehicle.

Optionally, in another possible design manner, the determining module is specifically configured to:

and comparing the sizes of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions based on the corresponding relation between the first front wheel steering angle extreme value and the working conditions and the corresponding relation between the second front wheel steering angle extreme value and the working conditions, and determining the smaller value of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions as a target front wheel steering angle extreme value to obtain the corresponding relation between the front wheel steering angle extreme value and the working conditions.

Optionally, in another possible design, the device for adjusting a steering ratio of a vehicle provided by the present application may further include an updating module:

the acquisition module is also used for acquiring running data in the running process of the vehicle; the driving data at least comprises working conditions and extreme values of the front wheel rotation angle;

and the updating module is used for updating the second sample data by the driving data under the condition that the acquired driving data meet the preset condition, and obtaining the second data analysis model again according to the updated second sample data.

Optionally, in another possible design, the device for adjusting a steering ratio of a vehicle provided by the present application may further include a display module and a starting module:

the display module is used for displaying a steering ratio setting mode before the obtaining module obtains the first steering wheel rotation angle extreme value, and the steering ratio setting mode comprises at least one of the following modes: a fixed steering ratio mode and a user-defined steering ratio mode;

and the starting module is used for receiving the triggering operation of the driver on the self-defined steering ratio mode and starting the self-defined steering ratio mode.

Optionally, in another possible design, the adjusting device for the vehicle steering ratio provided by the present application may further include a determining module and a starting module;

the starting module is also used for receiving the triggering operation of the driver on the virtual driving control and starting the virtual driving mode;

the adjusting module is also used for displaying the motion state of the vehicle under different working conditions according to the operation of the driver on the steering wheel based on the corresponding relation between the steering ratio and the working conditions in the virtual driving process;

the judging module is used for judging whether an instruction of adjusting the steering ratio of the driver is received or not after the virtual driving is finished; if so, displaying a steering ratio setting mode, and re-determining the corresponding relation between the steering ratio and the working condition; if not, applying the corresponding relation between the steering ratio and the working condition to the vehicle, and exiting the steering ratio setting mode.

In a third aspect, the present application provides a device for adjusting a steering ratio of a vehicle, comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the adjustment device of the vehicle steering ratio is operated, the processor executes the computer-executable instructions stored in the memory to cause the adjustment device of the vehicle steering ratio to perform the adjustment method of the vehicle steering ratio as provided in the first aspect described above.

Optionally, the adjusting device of the vehicle steering ratio may further include a transceiver for performing the steps of transceiving data, signaling or information, for example, acquiring a first steering wheel angle extreme value, under the control of the processor of the adjusting device of the vehicle steering ratio.

Further optionally, the adjusting device of the vehicle steering ratio may be an on-board device of the vehicle, or may be a user terminal connected to the on-board device. The vehicle steering ratio adjusting apparatus may implement the functions referred to in the first aspect, for example, receive, transmit, or process data and/or information referred to in the vehicle steering ratio adjusting method. The on-board device includes a chip system, and the chip system may include a chip, and may also include other discrete devices or circuit structures.

In a fourth aspect, the present application provides a computer-readable storage medium having instructions stored therein, which when executed by a computer, cause the computer to perform the method of adjusting a steering ratio of a vehicle as provided in the first aspect.

In a fifth aspect, the present application provides a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of adjusting a steering ratio of a vehicle as provided in the first aspect.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer-readable storage medium may be packaged with the processor of the device for adjusting the vehicle steering ratio, or may be packaged separately from the processor of the device for adjusting the vehicle steering ratio, which is not limited in this application.

For the descriptions of the second, third, fourth and fifth aspects in this application, reference may be made to the detailed description of the first aspect; in addition, for the beneficial effects described in the second aspect, the third aspect, the fourth aspect and the fifth aspect, reference may be made to beneficial effect analysis of the first aspect, and details are not repeated here.

In the present application, the names of the above-mentioned adjusting means of the steering ratio of the vehicle do not constitute limitations on the devices or functional modules themselves, which may appear under other names in actual implementation. Insofar as the functions of the respective devices or functional modules are similar to those of the present application, they fall within the scope of the claims of the present application and their equivalents.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

Fig. 1 is a schematic flowchart of a method for adjusting a steering ratio of a vehicle according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart illustrating another method for adjusting a steering ratio of a vehicle according to an embodiment of the present disclosure;

FIG. 3 is a schematic flow chart illustrating a method for adjusting a steering ratio of a vehicle according to an embodiment of the present application;

FIG. 4 is a schematic flow chart illustrating a method for adjusting a steering ratio of a vehicle according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an adjusting apparatus for a steering ratio of a vehicle according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of another adjustment device for a steering ratio of a vehicle according to an embodiment of the present application.

Detailed Description

The following describes in detail a method, an apparatus, and a storage medium for adjusting a vehicle steering ratio according to an embodiment of the present application with reference to the drawings.

The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.

In the existing steer-by-wire system, a driver can input a desired steering ratio in a vehicle-mounted display screen, and a vehicle steering ratio acquisition device can adjust the steering ratio according to the input of the user. However, in the existing steer-by-wire system, the driver cannot intuitively feel the maximum rotation angle of the steering wheel under different steering ratios, the steering ratio can be adjusted to the steering ratio meeting the self-demand only by repeatedly debugging the steering ratio, and the change of the vehicle state and the driving condition cannot be adapted after the steering ratio is set, so that the user experience is influenced.

In order to solve the problems in the prior art, the embodiment of the application provides a method for adjusting a vehicle steering ratio, in the method, a driver only needs to turn a steering wheel to a first steering wheel corner extreme value before driving, and does not need to repeatedly input the steering ratio for debugging, so that the steering ratio can be adjusted to a steering ratio adaptive to user habits according to real-time working conditions in the driving process, and user experience is greatly improved.

The method for adjusting the vehicle steering ratio provided by the embodiment of the application can be applied to a device for adjusting the vehicle steering ratio, and the device for adjusting the vehicle steering ratio can be an on-board device of a vehicle, or can be a user terminal connected with the on-board device (for example, connected by bluetooth or wired connection). For example, in the embodiment of the present application, a description will be given taking an example in which the adjustment device of the vehicle steering ratio is an in-vehicle device of a vehicle.

The user terminal may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a netbook, a Personal Digital Assistant (PDA), a wearable electronic device, a virtual reality device, or other different types of terminals.

The following is a detailed description of a method for adjusting a vehicle steering ratio provided in an embodiment of the present application.

Referring to fig. 1, the method for adjusting the steering ratio of the vehicle provided by the embodiment of the application comprises steps S101 to S103:

s101, receiving steering operation of a driver on a steering wheel, and acquiring a first steering wheel rotation angle extreme value.

In the embodiment of the application, when a driver has a demand for adjusting the steering ratio of the vehicle, the driver can send a first steering wheel angle extreme value to the adjusting device of the steering ratio of the vehicle by performing steering operation on the steering wheel before driving, wherein the first steering wheel angle extreme value is the maximum steering angle of the steering wheel rotated by the driver during the steering operation.

It is to be understood that the extreme steering wheel angle and the extreme front wheel angle referred to in the description of the embodiments of the present application may be the maximum steering angle. The step can lead the driver to intuitively feel the relation between the corner of the front wheel and the corner of the steering wheel, and is easier for the user to adjust the steering ratio.

S102, determining the corresponding relation between the steering ratio and the working condition by combining the corresponding relation between the extreme value of the front wheel steering angle and the working condition based on the first extreme value of the steering wheel steering angle.

Since the steering ratio is the steering wheel angle/front wheel angle, the corresponding relationship between the steering ratio and the working condition may be determined based on the first extreme steering wheel angle value and by combining the corresponding relationship between the extreme front wheel angle value and the working condition in the embodiment of the present application.

For example, in one possible implementation, the correspondence between the extreme value of the front wheel rotation angle and the operating condition may be a curve of the extreme value of the front wheel rotation angle as a function of the vehicle speed. Correspondingly, the corresponding relation between the steering ratio and the working condition can be a curve of the steering ratio changing along with the vehicle speed. For example, the abscissa of the curve in which the front wheel steering angle extreme value changes with the vehicle speed may be the vehicle speed, and the ordinate may be the front wheel steering angle extreme value, and the abscissa (vehicle speed) in the curve in which the front wheel steering angle extreme value changes with the vehicle speed is kept unchanged, and the first steering wheel steering angle extreme value is divided by the ordinate (front wheel steering angle extreme value) in the curve, so that the curve in which the steering ratio changes with the vehicle speed can be obtained.

Optionally, before determining the corresponding relationship between the steering ratio and the operating condition based on the first steering wheel angle extreme value and by combining the corresponding relationship between the front wheel angle extreme value and the operating condition, the method for adjusting the vehicle steering ratio provided in the embodiment of the present application may further include determining the corresponding relationship between the front wheel angle extreme value and the operating condition in the following manner: calling a second data analysis model, and determining the corresponding relation between the first front wheel steering angle extreme value and the working condition based on the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; and then, according to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition, and in combination with the corresponding relation between the extreme value of the second front wheel steering angle and the working condition, determining the corresponding relation between the extreme value of the front wheel steering angle and the working condition.

In the embodiment of the application, the second data analysis model can be called to determine the corresponding relation between the extreme value of the first front wheel steering angle and the working condition, and then the corresponding relation between the extreme value of the first front wheel steering angle and the working condition is determined by referring to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition. The second data analysis model is obtained according to second sample data; the second sample data at least comprises the mapping relation of vehicle type information, parameter information, working conditions and the extreme value of the front wheel rotation angle.

The vehicle type information can include vehicle type parameters of the vehicle, the parameter information can include information such as vehicle speed under different working conditions, and the different working conditions can be working conditions such as straight lines, curves or turning around.

Generally, when a driver drives vehicles of different vehicle types to run under different working conditions, the vehicle speeds are different, and the extreme values of the front wheel rotation angles of the vehicles are different. Therefore, according to the embodiment of the application, historical driving big data of a driver can be obtained in advance, then the front wheel corner extreme value which is commonly used when the driver drives vehicles of different vehicle types at different speeds under different working conditions is determined based on a big data analysis algorithm, and a second data analysis model is obtained according to the front wheel corner extreme value. When the corresponding relation between the first front wheel steering angle extreme value and the working condition is determined, the vehicle type information and the parameter information of the vehicle are input into the second data analysis model, and then the corresponding relation between the first front wheel steering angle extreme value and the working condition can be obtained.

Optionally, the method for adjusting the vehicle steering ratio provided by the embodiment of the present application may further include acquiring driving data during driving of the vehicle, where the driving data at least includes a working condition and a front wheel steering angle extreme value; and then, under the condition that the acquired driving data meet the preset conditions, updating second sample data by the driving data, and obtaining a second data analysis model again according to the updated second sample data.

Under the condition that the current driver drives the current vehicle for the first time, the driving data of the current driver is not acquired, historical driving big data of different drivers can be acquired, then the historical driving big data close to the user information of the current driver can be determined through a big data analysis algorithm, and working conditions and front wheel rotation angle extreme values in the historical driving big data are extracted to serve as second sample data. Then, in the vehicle driving process, the driving data of the current driver can be collected, under the condition that the data volume of the collected driving data reaches a certain amount or the time for collecting the driving data reaches a certain duration, second sample data before the collected driving data is updated can be used, and a second data analysis model is obtained again according to the updated second sample data. Therefore, with the updating of the second sample data, the second sample data can represent the driving habit of the current driver more and more, and the corresponding relation between the first front wheel steering angle extreme value determined based on the second data analysis model and the working condition is closer to the expected value of the user, so that the user experience can be further improved.

S103, in the running process of the vehicle, the steering ratio of the vehicle is adjusted according to the working condition of the vehicle on the basis of the corresponding relation between the steering ratio and the working condition.

Under the condition that a current driver drives a current vehicle for the first time, the vehicle can be triggered to start a self-defined steering ratio mode through triggering operation, and therefore the corresponding relation between the steering ratio and the working condition is determined by triggering the adjusting device of the vehicle steering ratio. Optionally, in order to further improve user experience, when the current driver drives the current vehicle for a certain number of times, the adjusting device of the vehicle steering ratio determines that the corresponding relationship between the steering ratio and the working condition can meet the user requirement, and at this time, the corresponding relationship between the steering ratio and the working condition can be locked, and the driver does not need to send the first steering wheel rotation angle extreme value to the adjusting device of the vehicle steering ratio through the steering operation of the steering wheel before driving. During the running process of the vehicle, the adjusting device of the vehicle steering ratio can directly adjust the steering ratio of the vehicle according to the current vehicle speed based on the corresponding relation between the locked steering ratio and the working condition.

In addition, by taking the case that the corresponding relation is represented by a curve, the curve of the extreme value of the front wheel steering angle changing along with the working condition in the embodiment of the application can be obtained based on a scatter diagram of the driving data, and after the curve of the steering ratio changing along with the working condition is obtained, the obtained curve can be subjected to smoothing processing by adopting a spline curve or a smoothing processing method such as obtaining an average value between two points, and the like, so that a relatively smooth curve is obtained.

Optionally, after determining the corresponding relationship between the steering ratio and the working condition, the method for adjusting the vehicle steering ratio provided by the embodiment of the application may further include: receiving the triggering operation of a driver on a virtual driving control, and starting a virtual driving mode; in the virtual driving process, based on the corresponding relation between the steering ratio and the working conditions, the motion states of the vehicle under different working conditions are displayed according to the operation of the driver on the steering wheel; after the virtual driving is finished, judging whether a command of adjusting the steering ratio by the driver is received or not; if so, displaying a steering ratio setting mode, and re-determining the corresponding relation between the steering ratio and the working condition; if not, applying the corresponding relation between the steering ratio and the working condition to the vehicle, and exiting the steering ratio setting mode.

In order to enable the determined corresponding relation between the steering ratio and the working condition to be closer to the user requirement, in the embodiment of the application, before the corresponding relation between the steering ratio and the working condition is locked, a virtual driving mode can be provided for the driver. For example, in the virtual driving mode, a display screen of the vehicle-mounted device may play virtual driving animation, a driver may operate a steering wheel according to vehicle speeds under different working conditions in the virtual driving animation, and the vehicle-mounted device may determine a front wheel steering angle according to a rotation angle of the steering wheel and a corresponding relationship between a determined steering ratio and the working conditions, and display a motion state of the vehicle under different working conditions in the display screen. The driver can determine whether to readjust the corresponding relationship between the steering ratio and the working condition according to the experience of virtual driving.

In a possible implementation process, if the driver feels that the experience of virtual driving cannot meet the self requirement, the steering wheel can be operated again after the virtual driving is finished. The driver's renewed steering action on the steering wheel may trigger the sending of an instruction to the vehicle to adjust the steering ratio. After the vehicle receives the instruction of adjusting the steering ratio, the first steering wheel rotation angle extreme value can be obtained again, and therefore the corresponding relation between the steering ratio and the working condition is determined again.

In another possible implementation process, if the driver feels that the experience of virtual driving can meet the self requirement, after the virtual driving process is finished, the confirmation control of the steering ratio setting mode can be triggered to lock the corresponding relation between the currently determined steering ratio and the working condition, and the vehicle is triggered to exit from the steering ratio setting mode.

In the method for adjusting the steering ratio of the vehicle provided by the embodiment of the application, a driver can steer the steering wheel before driving according to own requirements, and the steering wheel is turned to the expected maximum turning angle (namely, the first steering wheel turning angle extreme value in the application). Because the steering ratio is the ratio of the steering wheel angle to the front wheel steering angle, the corresponding relationship between the steering ratio meeting the driver's requirement and the working condition can be determined according to the first steering wheel steering angle extreme value and the corresponding relationship between the predetermined front wheel steering angle extreme value and the working condition. Therefore, in the running process of the vehicle, the steering ratio can be adjusted according to the determined corresponding relation between the steering ratio and the working condition and the real-time working condition. It can be seen that in the technical scheme provided by the embodiment of the application, a driver only needs to turn the steering wheel to the expected maximum turning angle before driving, and does not need to repeatedly input the steering ratio for debugging, so that the steering ratio can be adjusted to the required steering ratio according to the real-time working condition in the driving process, and the user experience is greatly improved.

Optionally, as shown in fig. 2, before step S101 in fig. 1, the method for adjusting a vehicle steering ratio according to the embodiment of the present application may further include:

and S1001, displaying a steering ratio setting mode.

And S1002, receiving the triggering operation of the driver on the self-defined steering ratio mode, and starting the self-defined steering ratio mode.

Wherein the steering ratio setting mode includes at least one of: a fixed steering ratio mode and a user-defined steering ratio mode;

in order to further improve user experience, the adjusting method of the vehicle steering ratio provided by the embodiment of the application can select whether to adjust the vehicle steering ratio before driving according to the requirements of a user. Specifically, the present application may provide the driver with at least one of a steering ratio setting mode and a custom steering ratio setting mode. When the vehicle steering ratio does not need to be adjusted, the driver can select the constant steering ratio mode, and when the vehicle steering ratio needs to be adjusted, the driver can select the self-defined steering ratio mode.

For example, in one possible implementation manner, after the vehicle is started, the display screen of the vehicle-mounted device can display a selection area of the fixed steering ratio mode and a selection area of the self-defined steering ratio mode. In another possible implementation manner, the driver may perform a triggering operation such as clicking, touching, or long-pressing on a steering ratio mode control in a display screen of the vehicle-mounted device, so as to trigger the vehicle-mounted device to display a selection area of the constant steering ratio mode and a selection area of the custom steering ratio mode. Then, the driver can click, touch or long press the selection area of the constant steering ratio mode to trigger operation, and the vehicle steering ratio adjusting device can respond to the trigger operation to start the constant steering ratio mode; alternatively, the driver may perform a trigger operation such as clicking, touching, or long-pressing on the selection area of the custom steering ratio mode, and the vehicle steering ratio adjusting device may start the custom steering ratio mode in response to the trigger operation.

Steps S101 to S103 in fig. 2 are the same as those described above, and are not described again here.

With the present embodiment, the user can select the turning ratio setting mode as desired. The mode of the fixed steering ratio can be selected, and the mode of the user-defined steering ratio can also be selected, so that the corresponding relation between the steering ratio and the working condition can be adjusted according to the requirements of the user in the mode of the user-defined steering ratio.

Optionally, as shown in fig. 3, before step S101 in fig. 1, the method for adjusting a vehicle steering ratio according to the embodiment of the present application may further include:

s1003, calling the first data analysis model, and determining a second steering wheel corner extreme value based on user information of a driver, vehicle type information of the vehicle and parameter information of the vehicle under different working conditions.

And S1004, determining a steering wheel angle extreme value interval according to the second steering wheel angle extreme value and the third steering wheel angle extreme value.

And S1005, displaying the extreme value interval of the steering wheel angle and the first prompt message.

The first prompt information is used for prompting a driver to perform steering operation based on the steering wheel corner extreme value interval.

In order to further improve user experience, the method for adjusting the vehicle steering ratio provided by the embodiment of the application can also recommend a steering wheel corner extreme value interval to the user for the user to refer to when the user performs steering operation. For example, after the vehicle-mounted device starts the user-defined steering ratio mode, the extreme steering wheel angle range can be determined and displayed, and the driver can refer to the extreme steering wheel angle range to turn the steering wheel to the first extreme steering wheel angle value.

When the steering wheel corner extreme value interval is determined, the first data analysis model can be called to determine a second steering wheel corner extreme value, and then the steering wheel corner extreme value interval is determined according to the second steering wheel corner extreme value. The first data analysis model is obtained according to first sample data, and the first sample data at least comprises mapping relations of user information, vehicle type information, parameter information and steering wheel corner extreme values.

The user information may include height, arm length, gender, and the like.

Because the maximum steering wheel angle generally varies for different heights, different arm lengths, and different sexes, for example, a person with a longer arm length may desire a relatively greater maximum steering wheel angle than a person with a shorter arm length. In addition, when a driver drives a vehicle of a different vehicle type, the expected maximum steering angle of the steering wheel is generally different. In addition, when the driver drives under different working conditions, the expected maximum turning angle of the steering wheel is generally different. Therefore, the embodiment of the application can obtain historical driving big data of different drivers in advance, and then determine the steering wheel corner extreme value commonly used by the drivers with different heights, different arm lengths and different sexes when the drivers drive vehicles of different vehicle types under different working conditions based on the big data analysis algorithm, so as to obtain the first data analysis model. When the steering wheel corner extreme value interval is determined, user information such as the height, the arm length and the gender of the current driver, vehicle type information of the current vehicle and parameter information under different working conditions can be input into the first data analysis model, and a second steering wheel corner extreme value is determined.

In addition, in order to avoid that a first steering wheel angle extreme value of steering when a driver performs steering operation exceeds the capability of the steer-by-wire system of the current vehicle, a third steering wheel angle extreme value is required to be referred when a steering wheel angle extreme value interval is determined, and the third steering wheel angle extreme value is determined according to the performance extreme value of the steer-by-wire system of the vehicle. For example, when the first extreme steering wheel angle is too small, for example 100 °, if the steering wheel is turned from 0 ° to 100 ° for about 0.5 second, the front wheels of the vehicle are correspondingly required to be turned from 0 ° to 30 ° within 0.5 second, and at this time, the steering actuator motor needs a large output to complete the steering process to overcome the friction force on the road surface, and the capability of the drive-by-wire system of many vehicles cannot be satisfied. Therefore, when determining the extreme steering wheel angle interval, the third extreme steering wheel angle and the second extreme steering wheel angle need to be referred to simultaneously.

Optionally, in a possible implementation manner, the magnitude of the third steering wheel angle extremum and the magnitude of the second steering wheel angle extremum may be compared, and a value with a smaller value among the second steering wheel angle extremum and the third steering wheel angle extremum is determined as a maximum value of the steering wheel angle extremum interval; and determining the preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.

The preset steering wheel angle extreme value may be a predetermined maximum steering wheel angle. For example, the preset extreme value of the steering wheel angle may be 180 °, and if a represents the second extreme value of the steering wheel angle and B represents the third extreme value of the steering wheel angle, the extreme value interval of the steering wheel angle may be (180 °, min (a, B)). Therefore, the steering wheel corner extreme value interval which meets the requirements of the current driver is determined under the condition of meeting the capacity of the steer-by-wire system of the vehicle, and the user experience can be further improved.

Steps S101 to S103 in fig. 3 are the same as those described above, and are not described again here.

Through the embodiment, the extreme angle interval of the steering wheel angle can be recommended to the user for the user to refer to when the user performs steering operation. The steering wheel angle extremum interval is determined based on the second steering wheel angle extremum and the third steering wheel angle extremum. The second steering wheel corner extreme value is determined based on user information such as height, arm length and gender of the current driver, vehicle type information of the current vehicle and parameter information under different working conditions, so that the steering wheel corner extreme value interval recommended by the embodiment of the application is closer to the actual requirement of the user, and user experience can be further improved.

Optionally, as shown in fig. 4, before step S102 in fig. 1, the method for adjusting a vehicle steering ratio according to the embodiment of the present application may further include:

s1020, comparing the sizes of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions based on the corresponding relation between the first front wheel steering angle extreme value and the working conditions and the corresponding relation between the second front wheel steering angle extreme value and the working conditions, determining the smaller one of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions as a target front wheel steering angle extreme value, and obtaining the corresponding relation between the front wheel steering angle extreme value and the working conditions according to the target front wheel steering angle extreme value under different working conditions.

In the embodiment of the application, after the steering ratio of the vehicle is adjusted according to the requirement of a user, the adjusting device of the steering ratio of the vehicle controls the front wheel steering angle according to the steering wheel steering angle operated by the driver in real time by taking the steering ratio as a reference during the running of the vehicle. In order to avoid the situation that the front wheel steering angle exceeds the capability of a steer-by-wire system of the current vehicle in the running process of the vehicle, when the corresponding relation between the extreme value of the front wheel steering angle and the working condition is determined, the corresponding relation between the extreme value of the second front wheel steering angle and the working condition is also required to be referred.

For example, the correspondence relationship between the first front wheel rotation angle extreme value and the working condition may be a curve of the first front wheel rotation angle extreme value changing with the vehicle speed, the abscissa is the vehicle speed, and the ordinate is the first front wheel rotation angle extreme value. The corresponding relation between the second front wheel steering angle extreme value and the working condition can be a curve that the second front wheel steering angle extreme value changes along with the vehicle speed, the abscissa is the vehicle speed, and the ordinate is the second front wheel steering angle extreme value. The abscissa of the two curves can be aligned, then the smaller one of the two ordinate corresponding to the same abscissa is determined as a target front wheel steering angle extreme value, the target front wheel steering angle extreme value is used as a new ordinate, the original abscissa is kept unchanged, and the curve of the front wheel steering angle extreme value changing along with the vehicle speed is obtained.

And obtaining a second front wheel steering angle extreme value under different vehicle speeds according to a steer-by-wire system performance extreme value of the vehicle. However, in practical application, due to installation errors of all parts of the system, an error exists between an actual second extreme front wheel steering angle value and a reference value given by the capacity of the steer-by-wire system. Therefore, in practical applications, the maximum rotation angle when the front wheel rotates left and right to the maximum amplitude can be actually measured, and the value is taken as the second front wheel rotation angle extreme value. In addition, long-term use can cause abrasion among components of the system, so that a second extreme front wheel rotation angle value can be measured at intervals. In this way, it can be further avoided that the front wheel steering angle exceeds the capability of the drive-by-wire system of the present vehicle during the running of the vehicle.

Steps S101 to S103 in fig. 4 are the same as those described above, and are not described again here.

In this embodiment, when the corresponding relationship between the extreme value of the front wheel angle and the working condition is determined, the corresponding relationship between the extreme value of the front wheel angle and the working condition determined by calling the second data analysis model is referred to, so that the corresponding relationship between the extreme value of the front wheel angle and the working condition is close to the actual requirement of the user. And the corresponding relation between the first front wheel steering angle extreme value and the working condition is referred, so that the front wheel steering angle cannot exceed the capacity of the steer-by-wire system of the current vehicle in the running process of the vehicle.

As shown in fig. 5, an embodiment of the present application further provides an apparatus for adjusting a steering ratio of a vehicle, which may include: an acquisition module 11, a determination module 12 and an adjustment module 13.

The obtaining module 11 executes S101 in the above method embodiment, the determining module 12 executes S102 in the above method embodiment, and the adjusting module 13 executes S103 in the above method embodiment.

Specifically, the obtaining module 11 is configured to receive a steering operation of a driver on a steering wheel, and obtain a first steering wheel rotation angle extreme value;

the determining module 12 is configured to determine a corresponding relationship between a steering ratio and a working condition based on the first steering wheel angle extreme value and by combining the corresponding relationship between the front wheel angle extreme value and the working condition;

and the adjusting module 13 is configured to adjust the steering ratio of the vehicle according to the working condition of the vehicle based on the corresponding relationship between the steering ratio and the working condition during the driving of the vehicle.

Optionally, in a possible design, the device for adjusting a steering ratio of a vehicle provided by the present application further includes: a display module;

the determining module 12 is further configured to, before the obtaining module 11 obtains the first steering wheel corner extreme value, invoke a first data analysis model, and determine a second steering wheel corner extreme value based on the user information of the driver, the model information of the vehicle, and the parameter information of the vehicle under different working conditions; the first data analysis model is obtained according to the first sample data; the first sample data at least comprises mapping relations of user information, vehicle type information, parameter information and steering wheel corner extreme values;

the determining module 12 is further configured to determine a steering wheel angle extreme value interval according to the second steering wheel angle extreme value and a third steering wheel angle extreme value, where the third steering wheel angle extreme value is determined according to a steer-by-wire system performance extreme value of the vehicle;

the display module is used for displaying the steering wheel corner extreme value interval and the first prompt message determined by the determination module 12; the first prompt information is used for prompting the driver to perform steering operation based on the steering wheel corner extreme value interval.

Optionally, in another possible design, the determining module 12 is specifically configured to:

comparing the third steering wheel angle extreme value with the second steering wheel angle extreme value, and determining the value with the smaller value between the second steering wheel angle extreme value and the third steering wheel angle extreme value as the maximum value of the steering wheel angle extreme value interval; and determining the preset steering wheel angle as the minimum value of the extreme value interval of the steering wheel angle.

Optionally, in another possible design, the determining module 12 is further configured to:

before the corresponding relation between the steering ratio and the working condition is determined, calling a second data analysis model, and determining the corresponding relation between the first front wheel steering angle extreme value and the working condition based on the vehicle type information of the vehicle and the parameter information of the vehicle under different working conditions; the second data analysis model is obtained according to the second sample data; the second sample data at least comprises vehicle type information, parameter information, a mapping relation of a working condition and a front wheel rotation angle extreme value;

determining the corresponding relation between the extreme value of the front wheel steering angle and the working condition according to the corresponding relation between the extreme value of the first front wheel steering angle and the working condition and by combining the corresponding relation between the extreme value of the second front wheel steering angle and the working condition; and determining the corresponding relation between the second front wheel steering angle extreme value and the working condition according to the steer-by-wire system performance extreme value of the vehicle.

Optionally, in another possible design, the determining module 12 is specifically configured to:

and comparing the sizes of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions based on the corresponding relation between the first front wheel steering angle extreme value and the working conditions and the corresponding relation between the second front wheel steering angle extreme value and the working conditions, and determining the smaller value of the first front wheel steering angle extreme value and the second front wheel steering angle extreme value under different working conditions as a target front wheel steering angle extreme value to obtain the corresponding relation between the front wheel steering angle extreme value and the working conditions.

Optionally, in another possible design, the device for adjusting a steering ratio of a vehicle provided by the present application may further include an updating module:

the acquisition module 11 is further configured to acquire driving data during the driving process of the vehicle; the driving data at least comprises working conditions and extreme values of the front wheel rotation angle;

and the updating module is used for updating the second sample data by the driving data under the condition that the acquired driving data meet the preset condition, and obtaining the second data analysis model again according to the updated second sample data.

Optionally, in another possible design, the device for adjusting a steering ratio of a vehicle provided by the present application may further include a display module and a starting module:

a display module, configured to display a steering ratio setting mode before the obtaining module 11 obtains the first steering wheel rotation angle extreme value, where the steering ratio setting mode includes at least one of: a fixed steering ratio mode and a user-defined steering ratio mode;

and the starting module is used for receiving the triggering operation of the driver on the self-defined steering ratio mode and starting the self-defined steering ratio mode.

Optionally, in another possible design, the adjusting device for the vehicle steering ratio provided by the present application may further include a determining module and a starting module;

the starting module is also used for receiving the triggering operation of the driver on the virtual driving control and starting the virtual driving mode;

the adjusting module 13 is further configured to, during the virtual driving, display a motion state of the vehicle under different working conditions according to the operation of the driver on the steering wheel based on the corresponding relationship between the steering ratio and the working conditions;

the judging module is used for judging whether an instruction of adjusting the steering ratio of the driver is received or not after the virtual driving is finished; if so, displaying a steering ratio setting mode, and re-determining the corresponding relation between the steering ratio and the working condition; if not, applying the corresponding relation between the steering ratio and the working condition to the vehicle, and exiting the steering ratio setting mode.

Optionally, the adjusting device of the vehicle steering ratio may further include a storage module, and the storage module is configured to store program codes of the adjusting device of the vehicle steering ratio, and the like.

As shown in fig. 6, the present embodiment further provides a device for adjusting a steering ratio of a vehicle, including a memory 41, processors 42(42-1 and 42-2), a bus 43, and a communication interface 44; the memory 41 is used for storing computer execution instructions, and the processor 42 is connected with the memory 41 through a bus 43; when the adjustment device of the vehicle steering ratio is operated, the processor 42 executes the computer-executable instructions stored in the memory 41 to cause the adjustment device of the vehicle steering ratio to perform the adjustment method of the vehicle steering ratio as provided in the above-described embodiment.

In particular implementations, processor 42 may include one or more Central Processing Units (CPUs), such as CPU0 and CPU1 shown in FIG. 6, as one embodiment. And as an example, the means for adjusting the vehicle steering ratio may include a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 6. Each of the processors 42 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 42 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).

The memory 41 may be, but is not limited to, a read-only memory 41 (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 41 may be self-contained and coupled to the processor 42 via a bus 43. The memory 41 may also be integrated with the processor 42.

In a specific implementation, the memory 41 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. The processor 42 may operate or execute software programs stored in the memory 41 and call various functions of the data stored in the memory 41, the adjusting device of the vehicle steering ratio.

The communication interface 44 is any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 44 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.

The bus 43 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.

As an example, in connection with fig. 5, the obtaining module in the adjusting device of the vehicle steering ratio implements the same function as that implemented by the receiving unit in fig. 6, the determining module in the adjusting device of the vehicle steering ratio implements the same function as that implemented by the processor in fig. 6, and the storage module in the adjusting device of the vehicle steering ratio implements the same function as that implemented by the memory in fig. 6.

For the explanation of the related contents in this embodiment, reference may be made to the above method embodiments, which are not described herein again.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The embodiment of the application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the computer executes the instructions, the computer is enabled to execute the method for adjusting the vehicle steering ratio provided by the embodiment.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a RAM, a ROM, an erasable programmable read-only memory (EPROM), a register, a hard disk, an optical fiber, a CD-ROM, an optical storage device, a magnetic storage device, any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.