阅读说明：本技术 车辆的换挡补偿控制方法、系统及车辆 (Gear shifting compensation control method and system of vehicle and vehicle ) 是由 宣华 李汝习 张占春 李贺 李景富 李孝军 王建录 陶隆棋 刘晓龙 于 2018-07-17 设计创作，主要内容包括：本发明提供了一种车辆的换挡补偿控制方法、系统及车辆,该方法包括以下步骤：获取车辆的行驶状态信息,行驶状态信息至少包括：车辆的驾驶模式、挡位、加速度、车速、道路坡度和油门踏板开度；根据行驶状态信息判断车辆是否处于平稳驾驶工况；如果是,则根据车辆的油门踏板变化率判断车辆是否满足换挡补偿控制条件；如果车辆满足换挡补偿控制条件,则对车辆进行换挡补偿。本发明的方法能够对车辆进行精确地换挡补偿,避免了油门轻微变化造成的变速器挡位的切换,提高了车辆行驶的平稳性,满足了驾驶员的平稳驾驶需求。(The invention provides a gear shifting compensation control method and system of a vehicle and the vehicle, wherein the method comprises the following steps: acquiring running state information of a vehicle, wherein the running state information at least comprises: driving mode, gear, acceleration, vehicle speed, road grade and accelerator pedal opening of the vehicle; judging whether the vehicle is in a stable driving condition or not according to the driving state information; if so, judging whether the vehicle meets the gear shifting compensation control condition or not according to the change rate of the accelerator pedal of the vehicle; and if the vehicle meets the gear shifting compensation control condition, performing gear shifting compensation on the vehicle. The method can accurately shift and compensate the vehicle, avoids the gear switching of the transmission caused by slight change of the accelerator, improves the running stability of the vehicle and meets the requirement of stable driving of a driver.)

1. A shift compensation control method of a vehicle, characterized by comprising the steps of:

acquiring running state information of a vehicle, wherein the running state information at least comprises: driving mode, gear, acceleration, vehicle speed, road grade and accelerator pedal opening of the vehicle;

judging whether the vehicle is in a stable driving condition or not according to the running state information;

if so, judging whether the vehicle meets a gear shifting compensation control condition or not according to the change rate of an accelerator pedal of the vehicle;

and if the vehicle meets the gear shifting compensation control condition, performing gear shifting compensation on the vehicle.

2. The shift compensation control method of a vehicle according to claim 1, characterized in that shift compensation is performed on the vehicle, further comprising:

obtaining a gear shifting compensation value according to the running state information of the vehicle and the change rate of the accelerator pedal;

controlling an upshift line to increase the shift compensation value, and controlling a downshift line to decrease the shift compensation value.

3. The shift compensation control method of a vehicle according to claim 1, characterized in that the vehicle is determined to be in a steady driving condition when a plurality of conditions including:

the current gear is in a preset gear and the duration time reaches a first preset time;

no gear change occurs within the first preset time;

the driving mode is not switched within the first preset time;

the vehicle speed is in a preset vehicle speed range and the duration time reaches the first preset time;

the acceleration is in a preset acceleration range and the duration time reaches the first preset time;

the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches the first preset time;

the road gradient is in a preset gradient range and the duration time reaches the first preset time.

4. The shift compensation control method of a vehicle according to claim 3, wherein determining whether the vehicle satisfies a shift compensation control condition according to a rate of change of an accelerator pedal of the vehicle further comprises:

and if the accelerator pedal change rate is in a preset change rate range and the duration time reaches a second preset time, judging that the vehicle meets the gear shifting compensation control condition.

5. The shift compensation control method of a vehicle according to claim 1, characterized by further comprising:

and if the vehicle is judged not to meet the gear shifting compensation control condition, after delaying for a third preset time, judging whether the vehicle meets the gear shifting compensation control condition again.

6. A shift compensation control system for a vehicle, comprising:

the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the running state information of a vehicle, and the running state information at least comprises: driving mode, gear, acceleration, vehicle speed, road grade and accelerator pedal opening of the vehicle;

the first judgment module is used for judging whether the vehicle is in a stable driving working condition or not according to the running state information;

the second judgment module is used for judging whether the vehicle meets a gear shifting compensation control condition or not according to the change rate of an accelerator pedal of the vehicle when the vehicle is in a stable driving working condition;

and the control module is used for carrying out gear shifting compensation on the vehicle when the vehicle meets the gear shifting compensation control condition.

7. The shift compensation control system of claim 6, wherein the control module is configured to obtain a shift compensation value according to the driving state information of the vehicle and the accelerator pedal change rate, and control an upshift line to increase the shift compensation value and control a downshift line to decrease the shift compensation value.

8. The shift compensation control system of a vehicle according to claim 6, characterized in that the vehicle is judged to be in a smooth driving condition when a plurality of conditions including:

the current gear is in a preset gear and the duration time reaches a first preset time;

no gear change occurs within the first preset time;

the driving mode is not switched within the first preset time;

the vehicle speed is in a preset vehicle speed range and the duration time reaches the first preset time;

the acceleration is in a preset acceleration range and the duration time reaches the first preset time;

the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches the first preset time;

the road gradient is in a preset gradient range and the duration time reaches the first preset time.

9. The shift compensation control system of a vehicle according to claim 8, wherein the second determination module is configured to determine that the vehicle satisfies the shift compensation control condition when the accelerator pedal change rate is within a preset change rate range and the duration reaches a second preset time.

10. A vehicle characterized by being provided with a shift compensation control system of a vehicle according to any one of claims 6-9.

Technical Field

The invention relates to the technical field of automobiles, in particular to a gear shifting compensation control method and system of a vehicle and the vehicle.

Background

With the popularization of automatic transmission vehicles, the requirement of people on driving comfort is higher and higher. Host manufacturers and transmission manufacturers exercise more precise control over the shift strategy in order to meet driver demand.

When a driver drives stably, the current automatic-gear vehicle can trigger the transmission to shift up and down due to unstable accelerator control of the driver, so that the acceleration of the vehicle is changed, the intention of the driver for driving stably is violated, and the driving feeling is worsened. The driver can feel that the vehicle is not easy to control, fatigue and even dysphoria are easy to occur, and the driving safety is affected due to the unintended gear shifting.

Disclosure of Invention

In view of the above, the present invention is directed to a shift compensation control method for a vehicle, which can perform precise shift compensation on the vehicle, avoid the shift of the transmission gear caused by slight change of the accelerator, improve the running stability of the vehicle, and meet the requirement of the driver for smooth driving.

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

a shift compensation control method of a vehicle, comprising the steps of: acquiring running state information of a vehicle, wherein the running state information at least comprises: driving mode, gear, acceleration, vehicle speed, road grade and accelerator pedal opening of the vehicle; judging whether the vehicle is in a stable driving condition or not according to the running state information; if so, judging whether the vehicle meets a gear shifting compensation control condition or not according to the change rate of an accelerator pedal of the vehicle; and if the vehicle meets the gear shifting compensation control condition, performing gear shifting compensation on the vehicle.

Further, shift compensation is performed on the vehicle, and the method further comprises the following steps: obtaining a gear shifting compensation value according to the running state information of the vehicle and the change rate of the accelerator pedal; controlling an upshift line to increase the shift compensation value, and controlling a downshift line to decrease the shift compensation value.

Further, the vehicle is judged to be in a smooth driving condition when a plurality of conditions including: the current gear is in a preset gear and the duration time reaches a first preset time; no gear change occurs within the first preset time; the driving mode is not switched within the first preset time; the vehicle speed is in a preset vehicle speed range and the duration time reaches the first preset time; the acceleration is in a preset acceleration range and the duration time reaches the first preset time; the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches the first preset time; the road gradient is in a preset gradient range and the duration time reaches the first preset time.

Further, whether the vehicle meets the gear shifting compensation control condition is judged according to the change rate of an accelerator pedal of the vehicle, and the method further comprises the following steps: and if the accelerator pedal change rate is in a preset change rate range and the duration time reaches a second preset time, judging that the vehicle meets the gear shifting compensation control condition.

Further, still include: and if the vehicle is judged not to meet the gear shifting compensation control condition, after delaying for a third preset time, judging whether the vehicle meets the gear shifting compensation control condition again.

Compared with the prior art, the gear shifting compensation control method of the vehicle has the following advantages:

the gear shift compensation control method of the vehicle obtains the running state information of the vehicle, such as the driving mode, the gear, the acceleration, the vehicle speed, the road gradient and the opening degree of an accelerator pedal of the vehicle, judges whether the vehicle is in a stable driving working condition or not according to the running state information of the vehicle, judges whether the vehicle meets a gear shift compensation control condition or not according to the change rate of the accelerator pedal of the vehicle when the vehicle is in the stable driving working condition, and accurately performs gear shift compensation on the vehicle when the gear shift compensation control condition is met, so that the gear shift of a transmission caused by slight change of the accelerator is avoided, the running stability of the vehicle is improved, and the stable driving requirement of a driver is met.

Another objective of the present invention is to provide a shift compensation control system for a vehicle, which can perform precise shift compensation on the vehicle, avoid the shift of transmission gears caused by slight change of the accelerator, improve the running stability of the vehicle, and meet the requirement of smooth driving of the driver.

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

a shift compensation control system for a vehicle, comprising: the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the running state information of a vehicle, and the running state information at least comprises: driving mode, gear, acceleration, vehicle speed, road grade and accelerator pedal opening of the vehicle; the first judgment module is used for judging whether the vehicle is in a stable driving working condition or not according to the running state information; the second judgment module is used for judging whether the vehicle meets a gear shifting compensation control condition or not according to the change rate of an accelerator pedal of the vehicle when the vehicle is in a stable driving working condition; and the control module is used for carrying out gear shifting compensation on the vehicle when the vehicle meets the gear shifting compensation control condition.

Further, the control module is used for obtaining a gear shifting compensation value according to the running state information of the vehicle and the change rate of the accelerator pedal, controlling the gear shifting compensation value to be increased by the gear shifting line, and controlling the gear shifting compensation value to be decreased by the gear shifting line.

Further, the vehicle is judged to be in a smooth driving condition when a plurality of conditions including: the current gear is in a preset gear and the duration time reaches a first preset time; no gear change occurs within the first preset time; the driving mode is not switched within the first preset time; the vehicle speed is in a preset vehicle speed range and the duration time reaches the first preset time; the acceleration is in a preset acceleration range and the duration time reaches the first preset time; the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches the first preset time; the road gradient is in a preset gradient range and the duration time reaches the first preset time.

Further, the second judging module is used for judging that the vehicle meets the gear shifting compensation control condition when the accelerator pedal change rate is in a preset change rate range and the duration time reaches a second preset time.

Compared with the prior art, the vehicle gear shifting compensation control system and the vehicle gear shifting compensation control method have the same advantages, and are not repeated herein.

Another object of the present invention is to provide a vehicle, which can perform precise shift compensation, avoid the shift of transmission gears caused by slight change of accelerator, improve the running stability of the vehicle, and meet the requirements of drivers for smooth driving.

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

a vehicle is provided with the shift compensation control system of the vehicle as described in the above embodiment.

Compared with the prior art, the vehicle and the gear shifting compensation control system of the vehicle have the same advantages, and the details are not repeated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a flowchart of a shift compensation control method for a vehicle according to one embodiment of the present invention;

fig. 2 is a block diagram of a shift compensation control system of a vehicle according to an embodiment of the present invention.

Description of reference numerals:

the shift compensation control system 100 of a vehicle, the obtaining module 110, the first determining module 120, the second determining module 130, and the control module 140.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1 is a flowchart of a shift compensation control method of a vehicle according to one embodiment of the present invention.

As shown in fig. 1, a shift compensation control method of a vehicle according to one embodiment of the present invention includes the steps of:

step S1: acquiring running state information of a vehicle, wherein the running state information at least comprises: driving mode of the vehicle, gear, acceleration, vehicle speed, road grade, and accelerator pedal opening.

Step S2: and judging whether the vehicle is in a stable driving condition or not according to the driving state information.

Step S3: if so (namely the vehicle is in a stable driving condition), judging whether the vehicle meets the gear shifting compensation control condition or not according to the change rate of the accelerator pedal of the vehicle.

Step S4: and if the vehicle meets the gear shifting compensation control condition, performing gear shifting compensation on the vehicle.

That is, the method determines the driving condition of the vehicle by recognizing the current driving state information, such as the driving mode, gear, vehicle acceleration, vehicle speed, road gradient and accelerator pedal opening degree of the vehicle, judges whether gear shift compensation is needed according to the accelerator pedal change rate when the vehicle is in a steady driving condition, and precisely performs compensation control on the gear shift when the gear shift compensation is needed, thereby avoiding the vehicle acceleration change caused by the gear change and achieving the purpose of steady driving of the driver.

Specifically, in one embodiment of the present invention, the gear shift compensation of the vehicle further comprises: obtaining a gear shifting compensation value according to the running state information of the vehicle and the change rate of the accelerator pedal; and performing gear shifting compensation on the vehicle according to the gear shifting compensation value. The method specifically comprises the following steps: controlling the upshift line to increase the shift compensation value and controlling the downshift line to decrease the shift compensation value.

In a specific example, the shift compensation values may be calibrated in different gears, and a set of upshift compensation values (e.g., table 1) and a set of downshift compensation values (e.g., table 2) are listed below for exemplary purposes.

TABLE 1

TABLE 2

In one embodiment of the present invention, it is determined that the vehicle is in a smooth driving condition when a plurality of conditions including: the current gear is in a preset gear and the duration time reaches a first preset time; no gear change occurs within a first preset time; the driving mode is not switched within a first preset time; the vehicle speed is in a preset vehicle speed range and the duration time reaches a first preset time; the acceleration is in a preset acceleration range and the duration time reaches a first preset time; the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches a first preset time; the road gradient is in a preset gradient range and the duration time reaches a first preset time.

In a specific example, the preset gear is, for example, a D gear. The first preset time is, for example, 2 seconds.

The preset vehicle speed range may be calibrated according to the actual driving experience of the vehicle, and an example of the preset vehicle speed range is shown in table 3.

TABLE 3

The predetermined acceleration range may be calibrated in different gears, and examples of the predetermined acceleration range are shown in tables 4 and 5.

TABLE 4

TABLE 5

The preset opening range may be calibrated by gears, and examples of the preset opening range are shown in tables 6 and 7.

TABLE 6

TABLE 7

The predetermined gradient range may be calibrated according to the actual driving experience of the vehicle, and an example of the predetermined gradient range is shown in table 8.

Ramp restraint	Upper limit of ramp	Lower limit of ramp
			Gradient unit%	15	-5

TABLE 8

In one embodiment of the present invention, determining whether the vehicle satisfies the shift compensation control condition according to the accelerator pedal change rate of the vehicle further includes: and if the accelerator pedal change rate is in the preset change rate range and the duration time reaches a second preset time, judging that the vehicle meets the gear shifting compensation control condition. The second preset time is, for example, 3 seconds.

In a specific example, the predetermined rate of change range may be calibrated by gears, and examples of the predetermined rate of change range are shown in tables 9 and 10.

TABLE 9

Watch 10

For example, when the vehicle simultaneously satisfies the following conditions, such as: the gear shifting lever is positioned at a D gear (namely the current gear is positioned at the D gear) and the duration time reaches 2 seconds (namely the first preset time); no Gear change occurs within 2 seconds, namely Gear shift progress is always equal to 0 (no Gear change occurs at 0, and 1 is shifting gears); the driving mode is not switched within 2 seconds, and the value of Drivingmode is normal all the time; the vehicle speed reaches a preset vehicle speed range and the duration reaches 2 seconds; the acceleration of the vehicle reaches a preset acceleration range and the duration time reaches 2 seconds; the opening degree of the accelerator pedal reaches a preset opening degree range and the duration time reaches 2 seconds; when the road gradient reaches a preset gradient range and the duration time reaches 2 seconds, judging that the vehicle is in a stable driving working condition; further, when the vehicle is in a stable driving condition, when the accelerator pedal change rate meets a preset change rate range and the duration time reaches a second preset time (such as 3 seconds), it is determined that the vehicle meets the gear shifting compensation control condition at the moment, and then the vehicle can be precisely subjected to gear shifting compensation.

Further, in one embodiment of the present invention, the method further comprises: and if the vehicle is judged not to meet the gear shifting compensation control condition, whether the vehicle meets the gear shifting compensation control condition is judged again after delaying for a third preset time (such as 5 seconds).

According to the gear shift compensation control method of the vehicle, the running state information of the vehicle, such as the driving mode, the gear, the acceleration, the vehicle speed, the road gradient and the opening degree of an accelerator pedal of the vehicle, is acquired, whether the vehicle is in a stable driving condition or not is judged according to the running state information of the vehicle, whether the vehicle meets a gear shift compensation control condition or not is judged according to the change rate of the accelerator pedal of the vehicle when the vehicle is in the stable driving condition, and when the gear shift compensation control condition is met, the vehicle is accurately subjected to gear shift compensation, so that the gear shift of a transmission caused by slight change of the accelerator is avoided, the running stability of the vehicle is improved, and the stable driving requirement of a driver is met.

A further embodiment of the present invention is directed to a shift compensation control system for a vehicle.

Fig. 2 is a block diagram of a shift compensation control system of a vehicle according to an embodiment of the present invention.

As shown in fig. 2, a shift compensation control system 100 for a vehicle according to an embodiment of the present invention includes: an obtaining module 110, a first judging module 120, a second judging module 130 and a control module 140.

The obtaining module 110 is configured to obtain driving state information of a vehicle, where the driving state information at least includes: driving mode of the vehicle, gear, acceleration, vehicle speed, road grade, and accelerator pedal opening.

The first judging module 120 is configured to judge whether the vehicle is in a stable driving condition according to the driving state information.

The second determination module 130 is configured to determine whether the vehicle satisfies a shift compensation control condition according to a change rate of an accelerator pedal of the vehicle when the vehicle is in a steady driving condition.

The control module 140 is configured to shift compensation the vehicle when the vehicle satisfies a shift compensation control condition.

That is, the system determines the driving condition of the vehicle by recognizing the current driving state information, such as the driving mode, gear, vehicle acceleration, vehicle speed, road gradient and accelerator pedal opening degree of the vehicle, determines whether gear shift compensation is required according to the accelerator pedal change rate when the vehicle is in a steady driving condition, and precisely performs compensation control on the gear shift when the gear shift compensation is required, thereby avoiding the vehicle acceleration change caused by the gear change and achieving the purpose of steady driving of the driver.

Specifically, in an embodiment of the present invention, the control module 140 is configured to obtain a shift compensation value according to the driving state information of the vehicle and the accelerator pedal change rate, and perform shift compensation on the vehicle according to the shift compensation value. The method specifically comprises the following steps: controlling the upshift line to increase the shift compensation value and controlling the downshift line to decrease the shift compensation value.

In one embodiment of the present invention, it is determined that the vehicle is in a smooth driving condition when a plurality of conditions including: the current gear is in a preset gear and the duration time reaches a first preset time; no gear change occurs within a first preset time; the driving mode is not switched within a first preset time; the vehicle speed is in a preset vehicle speed range and the duration time reaches a first preset time; the acceleration is in a preset acceleration range and the duration time reaches a first preset time; the opening degree of the accelerator pedal is in a preset opening degree range, and the duration time reaches a first preset time; the road gradient is in a preset gradient range and the duration time reaches a first preset time. The preset gear is, for example, a D gear. The first preset time is, for example, 2 seconds.

In one embodiment of the invention, the second determining module 130 is configured to determine that the vehicle satisfies the shift compensation control condition when the accelerator pedal change rate is within the preset change rate range and the duration reaches a second preset time. The second preset time is, for example, 3 seconds.

For example, when the vehicle simultaneously satisfies the following conditions, such as: the gear shifting lever is positioned at a D gear (namely the current gear is positioned at the D gear) and the duration time reaches 2 seconds (namely the first preset time); no Gear change occurs within 2 seconds, namely Gear shift progress is always equal to 0 (no Gear change occurs at 0, and 1 is shifting gears); the driving mode is not switched within 2 seconds, and the value of Drivingmode is normal all the time; the vehicle speed reaches a preset vehicle speed range and the duration reaches 2 seconds; the acceleration of the vehicle reaches a preset acceleration range and the duration time reaches 2 seconds; the opening degree of the accelerator pedal reaches a preset opening degree range and the duration time reaches 2 seconds; when the road gradient reaches a preset gradient range and the duration time reaches 2 seconds, judging that the vehicle is in a stable driving working condition; further, when the vehicle is in a stable driving condition, when the accelerator pedal change rate meets a preset change rate range and the duration time reaches a second preset time (such as 3 seconds), it is determined that the vehicle meets the gear shifting compensation control condition at the moment, and then the vehicle can be precisely subjected to gear shifting compensation.

Further, in an embodiment of the present invention, the second determining module 130 is further configured to, when it is determined that the vehicle does not satisfy the shift compensation control condition, re-determine whether the vehicle satisfies the shift compensation control condition after delaying for a third preset time (e.g., 5 seconds).

It should be noted that the specific implementation manner of the shift compensation control system of the vehicle according to the embodiment of the present invention is similar to the specific implementation manner of the shift compensation control method of the vehicle according to the embodiment of the present invention, and please refer to the description of the method part specifically, and details are not repeated here in order to reduce redundancy.

According to the gear shift compensation control system of the vehicle, the running state information of the vehicle, such as the driving mode, the gear, the acceleration, the vehicle speed, the road gradient and the opening degree of an accelerator pedal of the vehicle, is acquired, whether the vehicle is in a stable driving condition or not is judged according to the running state information of the vehicle, whether the vehicle meets a gear shift compensation control condition or not is judged according to the change rate of the accelerator pedal of the vehicle when the vehicle is in the stable driving condition, and when the gear shift compensation control condition is met, the vehicle is accurately subjected to gear shift compensation, so that the gear shift of a transmission caused by slight change of the accelerator is avoided, the running stability of the vehicle is improved, and the stable driving requirement of a driver is met.

Further, an embodiment of the invention discloses a vehicle provided with the shift compensation control system of the vehicle as described in any one of the above embodiments. The vehicle can accurately shift gears and compensate, avoids the switching of gears of the transmission caused by slight change of the accelerator, improves the running stability of the vehicle, and meets the stable driving requirement of a driver.

In addition, other configurations and functions of the vehicle according to the embodiment of the present invention are known to those skilled in the art, and are not described herein in detail in order to reduce redundancy.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.