阅读说明：本技术 一种转向管柱锁紧检测报警装置、方法及汽车 (Steering column locking detection alarm device and method and automobile ) 是由 梁阿南 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种转向管柱锁紧检测报警装置、方法及汽车,该装置包括：两个压力传感器,两个压力传感器分别设置在转向管柱的两侧,两个压力传感器能够检测转向管柱与转向管柱固定支架之间的压力；控制单元,两个压力传感器与控制单元连接,控制单元用于根据两个压力传感器的检测结果发出报警指令；该装置能够通过两个压力传感器的检测结果检测转向管柱的锁紧情况,并且能够判断转向管柱两侧受力的对称性,为解决出现左右转向力矩不均的发生提供理论基础。(The invention discloses a steering column locking detection alarm device, a method and an automobile, wherein the device comprises: the two pressure sensors are respectively arranged on two sides of the steering column and can detect the pressure between the steering column and the steering column fixing support; the control unit is used for sending out an alarm instruction according to the detection results of the two pressure sensors; the device can detect the locking condition of the steering column through the detection results of the two pressure sensors, can judge the symmetry of the stress on the two sides of the steering column, and provides a theoretical basis for solving the problem of uneven left and right steering moments.)

1. A steering column locking detection alarm device is characterized by comprising:

the two pressure sensors are respectively arranged on two sides of the steering column and can detect the pressure between the steering column and the steering column fixing support;

and the control unit is used for sending out an alarm instruction according to the detection results of the two pressure sensors.

2. The steering column lock detection alarm device according to claim 1, wherein the control unit includes a first detection unit and a second detection unit, the first detection unit is configured to calculate a lock mean value according to detection results of the two pressure sensors and compare the lock mean value with a first standard threshold value; the second detection unit is used for calculating the difference value of the detection results of the two pressure sensors and comparing the difference value with a second standard threshold value.

3. The steering column lock detection alarm device according to claim 2, wherein the first detection unit issues the alarm instruction when the lock mean is not within a first standard threshold range; when the locking mean value is within a first standard threshold range, the second detection unit calculates a difference value of detection results of the two pressure sensors and compares the difference value with a second standard threshold, and if the difference value is not within the second standard threshold range, the second detection unit sends the alarm instruction.

4. The steering column locking detection alarm device according to claim 1, further comprising an alarm module for issuing an alarm signal upon receiving the alarm command.

5. The steering column lock detection alarm device according to claim 3, wherein the control unit includes a traveling computer capable of performing symmetrical resistance compensation on the steering column based on the detection results of the two pressure sensors when a vehicle speed is not more than 30km/h, a steering wheel rotation speed is not less than 180 °/s, and the difference is not within the second standard threshold range.

6. A steering column lock detection alarm method using the steering column lock detection alarm device according to any one of claims 1 to 5, characterized by comprising:

a pressure sensor is respectively arranged between the two sides of the steering column and the steering column fixing support;

and sending out an alarm instruction according to the detection results of the two pressure sensors.

7. The steering column locking detection alarm method according to claim 6, wherein the issuing of the alarm command according to the detection results of the two pressure sensors includes:

calculating a locking mean value according to the detection results of the two pressure sensors and comparing the locking mean value with a first standard threshold value;

when the locking mean value is not in a first standard threshold range, sending the alarm instruction;

when the locking average value is within a first standard threshold range, calculating a difference value of detection results of the two pressure sensors and comparing the difference value with a second standard threshold;

and if the difference value is not in the range of the second standard threshold value, sending the alarm instruction.

8. The steering column lock detection alarm method according to claim 6, further comprising:

providing an alarm module;

and sending an alarm signal after receiving the alarm instruction by using the alarm module.

9. The steering column lock detection alarm method according to claim 6, further comprising:

connecting the two pressure sensors with a traveling computer;

and when the vehicle speed is not more than 30km/h, the rotating speed of a steering wheel is not less than 180 degrees/s, and the difference value is not in the range of the second standard threshold value, performing symmetry resistance compensation on the steering column by using the traveling computer according to the detection results of the two pressure sensors.

10. An automobile characterized by comprising a steering column lock detection alarm device according to any one of claims 1 to 5.

Technical Field

The invention belongs to the technical field of steering column locking, and particularly relates to a steering column locking detection alarm device, a steering column locking detection alarm method and an automobile.

Background

The steering column is a mechanism for connecting an automobile steering wheel and a steering engine, and has the function of generating steering force by rotating the steering column through the steering wheel, and the steering force is transmitted to the steering engine to push wheels of the automobile to realize a steering function. Meanwhile, the steering column has the functions of adjusting the steering wheel up and down and back and forth, and when the steering column adjusting handle is loosened, the angle and the height of the steering wheel can be adjusted. Because the uneven emergence of steering torque about spare part cooperation precision is not high or size design is unreasonable often appears in the accommodation process, influences driver's operation travelling comfort, has the condition that the adjustment handle locking is not in place at the in-process of handle locking simultaneously, has the potential safety hazard.

Disclosure of Invention

The invention aims to provide a steering column locking detection alarm device, a method and an automobile aiming at the defects in the prior art.

In order to achieve the above object, the present invention provides a steering column lock detection alarm device, including:

the two pressure sensors are respectively arranged on two sides of the steering column and can detect the pressure between the steering column and the steering column fixing support;

and the control unit is used for sending out an alarm instruction according to the detection results of the two pressure sensors.

Optionally, the control unit includes a first detection unit and a second detection unit, and the first detection unit is configured to calculate a locking mean value according to detection results of the two pressure sensors and compare the locking mean value with a first standard threshold; the second detection unit is used for calculating the difference value of the detection results of the two pressure sensors and comparing the difference value with a second standard threshold value.

Optionally, when the locking mean value is not within a first standard threshold range, the first detection unit sends the alarm instruction; when the locking mean value is within a first standard threshold range, the second detection unit calculates a difference value of detection results of the two pressure sensors and compares the difference value with a second standard threshold, and if the difference value is not within the second standard threshold range, the second detection unit sends the alarm instruction.

Optionally, the system further comprises an alarm module, wherein the alarm module is used for sending an alarm signal after receiving the alarm instruction.

Optionally, the control unit comprises a driving computer, and when the vehicle speed is not greater than 30km/h, the rotating speed of the steering wheel is not less than 180 °/s, and the difference value is not within the second standard threshold range, the driving computer can perform symmetry resistance compensation on the steering column according to the detection results of the two pressure sensors.

The invention also provides a steering column locking detection alarm method, which utilizes the steering column locking detection alarm device and comprises the following steps:

a pressure sensor is respectively arranged between the two sides of the steering column and the steering column fixing support;

and sending out an alarm instruction according to the detection results of the two pressure sensors.

Optionally, the sending an alarm instruction according to the detection results of the two pressure sensors includes:

calculating a locking mean value according to the detection results of the two pressure sensors and comparing the locking mean value with a first standard threshold value;

when the locking mean value is not in a first standard threshold range, sending the alarm instruction;

when the locking average value is within a first standard threshold range, calculating a difference value of detection results of the two pressure sensors and comparing the difference value with a second standard threshold;

and if the difference value is not in the range of the second standard threshold value, sending the alarm instruction.

Optionally, the method further comprises:

providing an alarm module;

and sending an alarm signal after receiving the alarm instruction by using the alarm module.

Optionally, the method further comprises:

connecting the two pressure sensors with a traveling computer;

and when the vehicle speed is not more than 30km/h, the rotating speed of a steering wheel is not less than 180 degrees/s, and the difference value is not in the range of the second standard threshold value, performing symmetry resistance compensation on the steering column by using the traveling computer according to the detection results of the two pressure sensors.

The invention also provides an automobile which comprises the steering column locking detection alarm device.

The invention provides a locking detection alarm device and method for a steering column and an automobile, and has the beneficial effects that:

1. the device can detect the locking condition of the steering column through the detection results of the two pressure sensors, can judge the symmetry of the stress on the two sides of the steering column, and provides a theoretical basis for solving the problem of uneven left and right steering moments;

2. the device is provided with an alarm module, and can send out an alarm signal when detecting that the locking force of the steering column is insufficient and the symmetry of the stress on the two sides of the steering column does not meet the requirement, so that the safety and the operation comfort of the automobile are improved;

3. the device can be analyzed by a running computer, and when the vehicle speed is not more than 30km/h, the rotating speed of a steering wheel is not less than 180 degrees/s, and the difference value is not in a second standard threshold range, the running computer performs symmetrical resistance compensation on the steering column according to the detection results of the two pressure sensors.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Fig. 1 is an exploded view schematically showing a steering column lock detection alarm device according to an embodiment of the present invention.

FIG. 2 shows a flow diagram of a steering column lock detection alarm method according to one embodiment of the present invention.

Description of reference numerals:

1. a pressure sensor; 2. a steering column; 3. a steering column fixing bracket; 4. an adjusting handle; 5. locking the nut; 6. a bearing; 7. a cushion washer; 8. the cam is adjusted.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The invention provides a locking detection alarm device of a steering column, which comprises:

the two pressure sensors are respectively arranged on two sides of the steering column and can detect the pressure between the steering column and the steering column fixing support;

and the control unit is used for sending out an alarm instruction according to the detection results of the two pressure sensors.

Specifically, the locking condition of the steering column is detected through the detection results of the two pressure sensors, the symmetry of the stress on the two sides of the steering column can be judged, the control unit sends out an alarm instruction when the locking condition of the steering column is abnormal or the symmetry of the stress on the two sides of the steering column is abnormal, and an alarm can be sent out on an automobile instrument panel.

Optionally, the control unit includes a first detection unit and a second detection unit, and the first detection unit is configured to calculate a locking mean value according to detection results of the two pressure sensors and compare the locking mean value with a first standard threshold; the second detection unit is used for calculating the difference value of the detection results of the two pressure sensors and comparing the difference value with a second standard threshold value.

Specifically, the first detection unit and the second detection unit may be detection units independent of the vehicle computer or may be included in the vehicle computer.

Optionally, when the locking average value is not within the first standard threshold range, the first detection unit sends an alarm instruction; when the locking mean value is within the range of the first standard threshold, the second detection unit calculates the difference value of the detection results of the two pressure sensors and compares the difference value with the second standard threshold, and if the difference value is not within the range of the second standard threshold, the second detection unit sends an alarm instruction.

Specifically, when the locking mean value is not within the range of the first standard threshold value, the locking of the steering column is unqualified, and the first detection unit sends an alarm instruction to alarm and remind; and if the difference value is not within the range of a second standard threshold value, the left and right stress symmetry of the steering column is not good, and the second detection unit sends an alarm instruction to alarm and remind.

Optionally, the system further comprises an alarm module, wherein the alarm module is used for sending an alarm signal after receiving the alarm instruction.

Specifically, the alarm module may be an alarm indicator lamp on the instrument panel, or may be an audible and visual alarm device capable of emitting an audible and visual alarm signal.

Optionally, the control unit comprises a running computer, and when the vehicle speed is not more than 30km/h, the rotating speed of the steering wheel is not less than 180 degrees/s, and the difference value is not in the range of the second standard threshold value, the running computer can perform symmetrical resistance compensation on the steering column according to the detection results of the two pressure sensors.

Specifically, when the left and right stress symmetry of the steering column is poor, the vehicle speed is not more than 30km/h, and the rotating speed of a steering wheel is not less than 180 degrees/s, an ECU (a running computer) compensates steering performance reduction caused by part deviation according to a logic algorithm of an adjusting and locking module, and the deviation exceeds a reasonable range to carry out grading early warning, so that the steering performance and the driving safety are improved.

Optionally, the vehicle steering system further comprises a third detection unit, when a driver looses the adjusting handle, adjusts the steering column angle and locks the nut, the third detection unit can compare the pressure mean value (X1+ X2)/2 of the two pressure sensors with a third standard threshold, if the pressure mean value (X1+ X2)/2 of the two pressure sensors is not smaller than the third standard threshold at the moment, the adjusting system is locked safely, otherwise, the third detection unit sends an alarm instruction, and an alarm prompt can be reported on the instrument.

The invention also provides a steering column locking detection alarm method, which utilizes the steering column locking detection alarm device and comprises the following steps:

a pressure sensor is respectively arranged between the two sides of the steering column and the steering column fixing support;

and sending out an alarm instruction according to the detection results of the two pressure sensors.

Optionally, the issuing of the alarm instruction according to the detection results of the two pressure sensors includes:

calculating a locking mean value according to the detection results of the two pressure sensors and comparing the locking mean value with a first standard threshold value;

when the locking mean value is not in the range of the first standard threshold value, an alarm instruction is sent out;

when the locking average value is within the range of the first standard threshold value, calculating the difference value of the detection results of the two pressure sensors and comparing the difference value with a second standard threshold value;

and if the difference value is not in the range of the second standard threshold value, an alarm instruction is sent out.

Optionally, the method further comprises:

providing an alarm module;

and the alarm module is used for receiving the alarm instruction and then sending an alarm signal.

Optionally, the method further comprises:

connecting the two pressure sensors with a traveling computer;

and when the vehicle speed is not more than 30km/h, the rotating speed of the steering wheel is not less than 180 degrees/s, and the difference value is not in a second standard threshold range, performing symmetrical resistance compensation on the steering column by using a traveling computer according to the detection results of the two pressure sensors.

Optionally, the method further comprises:

when a driver loosens the adjusting handle, adjusts the angle of the steering column and locks the nut, the pressure mean value of the two pressure sensors is compared with a third standard threshold value;

if the pressure mean value of the two pressure sensors is not less than the third standard threshold value, the regulating system is safely locked;

and if the pressure average value of the two pressure sensors is smaller than the third standard threshold value, an alarm instruction is sent.

The invention also provides an automobile which comprises the steering column locking detection alarm device.

Examples

As shown in fig. 1, the present invention provides a steering column lock detection alarm device, which includes:

the two pressure sensors 1 are respectively arranged on two sides of the steering column 2, and the two pressure sensors 1 can detect the pressure between the steering column 2 and the steering column fixing support 3;

and the two pressure sensors 1 are connected with the control unit, and the control unit is used for sending out an alarm instruction according to the detection results of the two pressure sensors 1.

In this embodiment, the control unit includes a first detection unit and a second detection unit, the first detection unit is configured to calculate a locking mean value according to the detection results of the two pressure sensors 1 and compare the locking mean value with a first standard threshold; the second detection unit is configured to calculate a difference between the detection results of the two pressure sensors 1 and compare the difference with a second standard threshold.

In this embodiment, when the locking average value is not within the first standard threshold range, the first detection unit sends an alarm instruction; when the locking mean value is within the range of the first standard threshold, the second detection unit calculates the difference value of the detection results of the two pressure sensors 1 and compares the difference value with the second standard threshold, and if the difference value is not within the range of the second standard threshold, the second detection unit sends an alarm instruction.

In this embodiment, the mobile terminal further includes an alarm module, and the alarm module is configured to send an alarm signal after receiving the alarm instruction.

In the embodiment, the control unit comprises a running computer, and when the vehicle speed is not more than 30km/h, the rotating speed of the steering wheel is not less than 180 degrees/s, and the difference value is not in the range of the second standard threshold value, the running computer can perform symmetry resistance compensation on the steering column 2 according to the detection results of the two pressure sensors 1.

The invention also provides a steering column locking detection alarm method, which utilizes the steering column locking detection alarm device and comprises the following steps:

a pressure sensor is respectively arranged between the two sides of the steering column and the steering column fixing support;

and sending out an alarm instruction according to the detection results of the two pressure sensors.

In this embodiment, the issuing of the alarm instruction according to the detection results of the two pressure sensors includes:

calculating a locking mean value according to the detection results of the two pressure sensors and comparing the locking mean value with a first standard threshold value;

when the locking mean value is not in the range of the first standard threshold value, an alarm instruction is sent out;

when the locking average value is within the range of the first standard threshold value, calculating the difference value of the detection results of the two pressure sensors and comparing the difference value with a second standard threshold value;

and if the difference value is not in the range of the second standard threshold value, an alarm instruction is sent out.

In this embodiment, the method further includes:

providing an alarm module;

and the alarm module is used for receiving the alarm instruction and then sending an alarm signal.

In this embodiment, the method further includes:

connecting the two pressure sensors with a traveling computer;

and when the vehicle speed is not more than 30km/h, the rotating speed of the steering wheel is not less than 180 degrees/s, and the difference value is not in a second standard threshold range, performing symmetrical resistance compensation on the steering column by using a traveling computer according to the detection results of the two pressure sensors.

The invention also provides an automobile which comprises the steering column locking detection alarm device.

In summary, when the steering column locking detection alarm method provided by the invention is implemented, the steering column locking detection alarm device is utilized to define that the two pressure sensors 1 are respectively a left pressure sensor and a right pressure sensor, and the detection result pressure values of the two pressure sensors are respectively X1 and X2; in the locking process of the off-line detection adjusting handle 4 of the part, when the locking mean value (X1+ X2)/2 of the left and right pressure sensors placed between the steering column fixing support 3 and the steering column 2 is in a first standard threshold range, the pressure difference value delta X of the left and right pressure sensors is recorded and calculated, whether the symmetry of the part of the steering column is qualified or not is judged, when the pressure difference value delta X of the left and right pressure sensors is larger than or equal to the upper limit of a second standard threshold value, a system alarms, the product is judged to be unqualified, the product flows into a repair area, and when the pressure difference value delta X of the left and right pressure sensors is in the second standard threshold range, the product is qualified and can be used for the assembly of the whole vehicle.

After the steering column assembly is assembled in a whole vehicle, the adjusting handle 4 is loosened, the ECU is electrified, the locking adjusting handle records the pressure difference value delta X of the left and right pressure sensors when the locking pressure mean value (X1+ X2)/2 of the left and right pressure sensors placed between the steering column fixing support 3 and the steering column 2 is within a first standard threshold range, whether the beam symmetry of the instrument board installed on the steering column is qualified is judged, when the pressure difference value delta X of the left and right pressure sensors is larger than or equal to the upper limit of a second standard threshold value, a system alarms, the product is judged to be unqualified, the product flows into a repair area, and when the pressure difference value delta X of the left and right pressure sensors is within the second standard threshold value range, the product in the assembly state of the system is qualified.

When the rotating speed of a steering wheel is more than or equal to 180 degrees/s, the vehicle speed is less than or equal to 30km/h and the difference value is not within the range of a second standard threshold value in the running process of the vehicle, the system gives symmetric assistance compensation; the compensation moment is: if the left pressure sensor detection pressure value X1 is larger than the right pressure sensor detection pressure value X2, the compensation moment is M ═ X1-X2 ═ alpha (N · M); if the left pressure sensor detection pressure value X1 is smaller than the right pressure sensor detection pressure value X2, the compensation moment is M- (X1-X2) × alpha (N.m); where α is the compensation factor.

When a driver loosens the adjusting handle 4, adjusts the angle of the steering column 2 and locks the nut 5, when the pressure mean value (X1+ X2)/2 detected by the left and right pressure sensors is larger than or equal to a third standard threshold value, the adjusting system is safely locked, otherwise, the system gives an alarm prompt on an instrument.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.