CN-121979042-A - Method, device and equipment for compensating performance attenuation of drive-by-wire chassis and readable storage medium

CN121979042ACN 121979042 ACN121979042 ACN 121979042ACN-121979042-A

Abstract

A method, a device, equipment and a readable storage medium for compensating the performance attenuation of a drive-by-wire chassis comprise the following steps of acquiring a plurality of subsystem data of the drive-by-wire chassis, processing the acquired data, outputting a component attenuation coefficient and a trend, and implementing a compensation strategy for each subsystem according to the component attenuation coefficient and the trend. According to the technical scheme, the attenuation coefficient and trend are output by dynamically acquiring and processing the data of the drive-by-wire chassis subsystem, and the compensation strategy is implemented in real time, so that the problems of lack of real-time adaptability and insufficient coverage dimension of a static compensation mechanism in the prior art are solved, and the drive-by-wire chassis performance compensation method has the advantages of improving the real-time performance and adaptability of drive-by-wire chassis performance compensation and enhancing the control precision and stability of the system.

Inventors

GAO SHUAI
Ding Yakang
ZHAI RUNGUO
CAO AN
XU LIPING

Assignees

岚图汽车科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260120

Claims (10)

1. The method for compensating the performance attenuation of the drive-by-wire chassis is characterized by comprising the following steps of: acquiring a plurality of subsystem data of a drive-by-wire chassis; processing the acquired data, outputting component attenuation coefficients and trends; and implementing a compensation strategy for each subsystem according to the component attenuation coefficient and the trend.
2. The chassis-by-wire performance attenuation compensation method of claim 1, wherein the plurality of subsystems comprises a plurality of drive systems, brake-by-wire systems, steering-by-wire systems, and suspension-by-wire systems.
3. The method for compensating for performance attenuation of a chassis by wire according to claim 1 or 2, wherein the step of acquiring a plurality of subsystem data of the chassis by wire comprises: and acquiring sensor layer data, actuator layer data, environment working condition data and system health data of each subsystem in a plurality of subsystems of the drive-by-wire chassis in real time through the multisource sensor system.
4. A method of compensating for the performance degradation of a chassis by wire according to claim 3, wherein the step of implementing a compensation strategy for each subsystem based on the component attenuation coefficients and trends comprises: And respectively implementing a layering compensation strategy for a sensor layer, an actuator layer and an electronic element layer of each subsystem according to the component attenuation coefficient and the trend.
5. The method of compensating for the performance attenuation of a chassis by wire of claim 1, wherein the step of implementing a compensation strategy for each subsystem based on the component attenuation coefficients and trends comprises: based on the attenuation coefficient and trend of each subsystem, a collaborative compensation instruction is generated through a collaborative optimization algorithm so as to compensate the coupling attenuation among multiple subsystems.
6. The method for compensating for the performance attenuation of a chassis by wire according to claim 5, wherein the step of generating a collaborative compensation command by a collaborative optimization algorithm based on the attenuation coefficient and trend of each subsystem to compensate for the coupling attenuation between the subsystems comprises: When the vehicle runs on a bumpy road surface, a steering angle precision correction model is established, and a compensation gain coefficient of a steering motor is dynamically adjusted according to vibration frequency and amplitude data of a wire control suspension system; designing a braking pressure pre-compensation mechanism based on road surface unevenness recognition, and when a wheel speed sensor detects a fluctuation signal with specific frequency, a braking controller increases braking pressure compensation quantity in advance, wherein the compensation quantity is in direct proportion to road surface excitation intensity; and constructing a torque distribution optimization model, and dynamically limiting the mutation rate of the driving torque.
7. The method of compensating for the performance attenuation of a chassis by wire of claim 1, wherein the step after implementing the compensation strategy for each subsystem based on the component attenuation coefficients and trends comprises: Judging whether the deviation between each compensated parameter and the initial state parameter is smaller than a preset threshold value or not; If the deviation is not smaller than the preset threshold, updating the machine learning evaluation model and re-executing the data processing, attenuation evaluation and compensation implementation steps; if the deviation is smaller than the preset threshold value, the data processing, attenuation evaluation and compensation implementation steps are re-executed.
8. A brake-by-wire chassis performance attenuation compensation device, the brake-by-wire chassis performance attenuation compensation device comprising: the data acquisition module is configured to acquire a plurality of subsystem data of the drive-by-wire chassis; a performance decay assessment module configured to process the acquired plurality of subsystem data and output component decay coefficients and trends, and And the dynamic compensation control module is configured to implement a compensation strategy for each subsystem.
9. A chassis-by-wire performance degradation compensation device comprising a processor, a memory, and a chassis-by-wire performance degradation compensation program stored on the memory and executable by the processor, wherein the chassis-by-wire performance degradation compensation program, when executed by the processor, implements the steps of the chassis-by-wire performance degradation compensation method of any one of claims 1 to 7.
10. A readable storage medium, characterized in that a chassis performance degradation compensation program is stored on the readable storage medium, wherein the chassis performance degradation compensation program, when executed by a processor, implements the steps of the chassis performance degradation compensation method according to any one of claims 1 to 7.

Description

Method, device and equipment for compensating performance attenuation of drive-by-wire chassis and readable storage medium Technical Field The application relates to the field of vehicle control, in particular to a method, a device and equipment for compensating performance attenuation of a drive-by-wire chassis and a readable storage medium. Background Under the background of rapid development of intelligent automobile technology, a drive-by-wire chassis system is used as a core link for realizing high-precision control of a vehicle, and the performance stability of the drive-by-wire chassis system has a decisive influence on driving safety and driving experience. However, the performance decay compensation techniques commonly employed in the current industry have deep drawbacks. The existing compensation mechanism is mostly dependent on a static preset mode, namely parameter correction is carried out through a fixed attenuation curve, dynamic working condition change in actual running of a vehicle cannot be perceived, the real-time adaptability of the compensation process is lacking, hysteresis or deviation occurs in chassis response, and the control precision of the system is severely restricted. Disclosure of Invention The application provides a method, a device and equipment for compensating performance attenuation of a drive-by-wire chassis and a readable storage medium, which can solve the technical problem that the compensation process in the prior art lacks real-time adaptability, so that the chassis response is delayed or deviated. In a first aspect, an embodiment of the present application provides a method for compensating performance attenuation of a chassis by wire, including the following steps: acquiring a plurality of subsystem data of a drive-by-wire chassis; processing the acquired data, outputting component attenuation coefficients and trends; and implementing a compensation strategy for each subsystem according to the component attenuation coefficient and the trend. With reference to the first aspect, in one embodiment, the plurality of subsystems includes a plurality of drive systems, brake-by-wire systems, steering-by-wire systems, and suspension-by-wire systems. With reference to the first aspect, in an implementation manner, the step of acquiring the plurality of subsystem data of the drive-by-wire chassis includes: and acquiring sensor layer data, actuator layer data, environment working condition data and system health data of each subsystem in a plurality of subsystems of the drive-by-wire chassis in real time through the multisource sensor system. With reference to the first aspect, in an implementation manner, the step of implementing a compensation strategy for each subsystem according to the component attenuation coefficient and the trend includes: And respectively implementing a layering compensation strategy for a sensor layer, an actuator layer and an electronic element layer of each subsystem according to the component attenuation coefficient and the trend. With reference to the first aspect, in an implementation manner, the step of implementing a compensation strategy for each subsystem according to the component attenuation coefficient and the trend further includes: based on the attenuation coefficient and trend of each subsystem, a collaborative compensation instruction is generated through a collaborative optimization algorithm so as to compensate the coupling attenuation among multiple subsystems. With reference to the first aspect, in one implementation manner, the step of generating a collaborative compensation instruction by a collaborative optimization algorithm to compensate for coupling attenuation between multiple subsystems based on attenuation coefficients and trends of the subsystems includes: When the vehicle runs on a bumpy road surface, a steering angle precision correction model is established, and a compensation gain coefficient of a steering motor is dynamically adjusted according to vibration frequency and amplitude data of a wire control suspension system; designing a braking pressure pre-compensation mechanism based on road surface unevenness recognition, and when a wheel speed sensor detects a fluctuation signal with specific frequency, a braking controller increases braking pressure compensation quantity in advance, wherein the compensation quantity is in direct proportion to road surface excitation intensity; and constructing a torque distribution optimization model, and dynamically limiting the mutation rate of the driving torque. With reference to the first aspect, in one implementation manner, the steps after implementing the compensation strategy to each subsystem according to the component attenuation coefficient and the trend include: Judging whether the deviation between each compensated parameter and the initial state parameter is smaller than a preset threshold value or not; If the deviation is not smaller than the preset threshold, up