CN-117227836-B - Steering wheel vibration suppression method and device

CN117227836BCN 117227836 BCN117227836 BCN 117227836BCN-117227836-B

Abstract

The invention discloses a steering wheel vibration suppression method and device, which are implemented by acquiring a current wheel speed signal of a vehicle, a current rotating speed signal of an engine and a current vibration signal of a steering wheel; the method comprises the steps of carrying out first matching on a current wheel speed signal and a current rotating speed signal in a preset first compensation relation, comparing the current vibration signal with a target vibration signal if the first matching is unsuccessful, carrying out second matching on the current vibration signal in a preset second compensation relation if the current vibration signal is larger than the target vibration signal to obtain a compensation signal, and controlling a vibration compensator to carry out reverse vibration compensation on a steering wheel according to the compensation signal. In this way, the steering wheel vibration can be predicted and compensated vibration in the opposite direction can be provided to reduce the steering wheel vibration. The magnitude of the compensation vibration can be detected and adjusted, and when the vehicle ages or the driving state changes, the vehicle can be self-learned and the vibration magnitude can be adjusted.

Inventors

Zuo Yueyun
HAO SHAOHUA
CAO YUQUAN

Assignees

东风汽车集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230913

Claims (9)

1. A steering wheel vibration suppression method, characterized by comprising: Acquiring a current wheel speed signal of a vehicle, a current rotating speed signal of an engine and a current vibration signal of a steering wheel; performing first matching on the current wheel speed signal and the current rotating speed signal in a preset first compensation relation, wherein the first compensation relation is a relation between the current wheel speed signal and the current rotating speed signal and a compensation signal; If the first matching is unsuccessful, comparing the current vibration signal with a target vibration signal; if the current vibration signal is larger than the target vibration signal, performing second matching on the current vibration signal in a preset second compensation relation to obtain a compensation signal, wherein the second compensation relation is a relation between the current vibration signal and the compensation signal; controlling a vibration compensator to perform reverse vibration compensation on the steering wheel according to the compensation signal; after the second matching, the method further comprises: And updating the first compensation relation according to the current wheel speed signal, the current rotating speed signal and a compensation signal obtained by second matching.
2. The method according to claim 1, wherein the method further comprises: and if the first matching is successful, determining the current wheel speed signal and a compensation signal corresponding to the current rotation speed signal.
3. The method of claim 1, wherein said first matching said current wheel speed signal and said current rotational speed signal in a preset first compensation relationship comprises: searching in the first compensation relation according to the current wheel speed signal and the current rotating speed signal, and if the matched wheel speed signal identical to the current wheel speed signal exists and the matched rotating speed signal identical to the current rotating speed signal exists, successfully performing first matching; Otherwise, the first match is unsuccessful.
4. The method of claim 1, wherein performing a second matching on the current vibration signal in a preset second compensation relationship to obtain a compensation signal includes: And searching in the second compensation relation according to the current vibration signal, and determining a matching compensation signal corresponding to the matching vibration signal as the compensation signal if the matching vibration signal which is the same as the current vibration signal exists.
5. The method of claim 1, wherein after said controlling the vibration compensator to reverse the vibration compensation of the steering wheel in accordance with the compensation signal, the method further comprises: acquiring a vibration signal after steering wheel reverse compensation; And comparing the vibration signal after the reverse compensation with the target vibration signal, and if the vibration signal after the reverse compensation is larger than the target vibration signal, adjusting the compensation signal to enhance the reverse vibration compensation of the steering wheel by the vibration compensator.
6. The method of claim 1, wherein the current vibration signal is a vibration acceleration.
7. A steering wheel vibration suppression device, comprising: The acquisition module is used for acquiring a current wheel speed signal of the vehicle, a current rotating speed signal of the engine and a current vibration signal of the steering wheel; the first matching module is used for carrying out first matching on the current wheel speed signal and the current rotating speed signal in a preset first compensation relation, wherein the first compensation relation is a relation among the current wheel speed signal, the current rotating speed signal and the compensation signal; The system comprises a first matching module, a second matching module, a first matching module and a second matching module, wherein the first matching module is used for comparing the current vibration signal with a target vibration signal when the first matching is unsuccessful; the compensation module is used for controlling the vibration compensator to carry out reverse vibration compensation on the steering wheel according to the compensation signal; the second matching module is further configured to: And updating the first compensation relation according to the current wheel speed signal, the current rotating speed signal and a compensation signal obtained by second matching.
8. A controller comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steering wheel vibration suppression method of any one of claims 1-6 when executing the computer program.
9. A vehicle comprising a vehicle body, a controller mounted in the vehicle body, wherein the controller performs the steering wheel vibration suppression method of any one of claims 1-6.

Description

Steering wheel vibration suppression method and device Technical Field The invention relates to the technical field of vehicle control, in particular to a steering wheel vibration suppression method and device. Background In the development of automobiles, the NVH (Noise Vibration Harshness; noise, vibration and harshness) characteristics of the vehicle are important research objectives. The NVH characteristics of a vehicle directly affect the comfort of the vehicle and are closely related to the quality of the vehicle. Among them, steering wheel vibration is one of the major vehicle NVH problems. In the actual running process of the automobile, the automobile body vibrates due to excitation of a road surface, a power assembly and the like, so that the steering wheel vibrates. Under some working conditions, the vibration of the steering wheel aggravates discomfort of the hands of a driver, bad driving feeling is brought to customers, and even traffic accidents are caused when the driving feeling is serious. Therefore, how to reduce the vibration of the steering wheel is a problem that we need to solve at present. Disclosure of Invention In view of the above problems, the present invention has been made to provide a steering wheel vibration suppressing method and apparatus that anticipates the vibration of a steering wheel and provides counter-direction compensation vibration to reduce the steering wheel vibration. According to a first aspect of the present invention, there is provided a steering wheel vibration suppressing method comprising: Acquiring a current wheel speed signal of a vehicle, a current rotating speed signal of an engine and a current vibration signal of a steering wheel; Performing first matching on the current wheel speed signal and the current rotating speed signal in a preset first compensation relation, wherein the first compensation relation is a relation between the current wheel speed signal and the current rotating speed signal and a compensation signal; If the first matching is unsuccessful, comparing the current vibration signal with the target vibration signal; If the current vibration signal is larger than the target vibration signal, performing second matching on the current vibration signal in a preset second compensation relation to obtain a compensation signal, wherein the second compensation relation is a relation between the current vibration signal and the compensation signal; and controlling the vibration compensator to perform reverse vibration compensation on the steering wheel according to the compensation signal. Optionally, after the second matching, the method further comprises: And updating the first compensation relation according to the current wheel speed signal, the current rotating speed signal and the compensation signal obtained by the second matching. Optionally, the method further comprises: And if the first matching is successful, determining the current wheel speed signal and a compensation signal corresponding to the current rotation speed signal. Optionally, performing first matching on the current wheel speed signal and the current rotation speed signal in a preset first compensation relation includes: Searching in a first compensation relation according to the current wheel speed signal and the current rotating speed signal, and if the matched wheel speed signal identical to the current wheel speed signal exists and the matched rotating speed signal identical to the current rotating speed signal exists, successfully performing first matching; Otherwise, the first match is unsuccessful. Optionally, performing second matching on the current vibration signal in a preset second compensation relationship to obtain a compensation signal, including: And searching in the second compensation relation according to the current vibration signal, and determining a matched compensation signal corresponding to the matched vibration signal as a compensation signal if the matched vibration signal which is the same as the current vibration signal exists. Optionally, after controlling the vibration compensator to perform reverse vibration compensation on the steering wheel according to the compensation signal, the method further includes: acquiring a vibration signal after steering wheel reverse compensation; And comparing the vibration signal after the reverse compensation with the target vibration signal, and if the vibration signal after the reverse compensation is larger than the target vibration signal, adjusting the compensation signal to enhance the reverse vibration compensation of the vibration compensator on the steering wheel. Optionally, the current vibration signal is a vibration acceleration. According to a second aspect of the present invention, there is provided a steering wheel vibration suppression device comprising: The acquisition module is used for acquiring a current wheel speed signal of the vehicle, a current rotating speed signal of the engin