A vehicle multi-dimensional stability control method, device, equipment and storage medium

By establishing a multi-degree-of-freedom dynamic model and a multi-actuator collaborative control strategy, the problem of incompatibility between different dimensions of stability control under extreme vehicle operating conditions was solved, and the stability adjustment and control effect of the vehicle under multi-dimensional instability conditions were improved.

CN117864104BActive Publication Date: 2026-07-03HEFEI UNIV OF TECH +1
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Patent Information

Application Number
CN202410111707.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-26
Publication Date
2026-07-03
Estimated Expiration
2044-01-26

AI Technical Summary

Technical Problem

Existing technologies for vehicle stability control under extreme conditions are limited by their single dimension and single actuator, and cannot be compatible with stability control of different dimensions, resulting in uncertainty in multidimensional coupled instability processes and poor control performance.

Method used

A multi-degree-of-freedom dynamic model is established to determine the comprehensive evaluation index of vehicle stability in multiple dimensions, obtain real-time dynamic parameters, and perform vehicle control in combination with the desired control quantity. The control quantity is optimized through a multi-actuator collaborative control strategy to achieve multi-dimensional stability adjustment.

Benefits of technology

It improves the stability control of vehicles under extreme conditions, and can comprehensively consider the impact of changes in dynamic parameters on stability in different dimensions, thus solving the control problem of vehicles under multi-dimensional instability conditions.

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Abstract

This application relates to a method, apparatus, device, and storage medium for multi-dimensional vehicle stability control. The method includes: establishing a multi-degree-of-freedom dynamic model; determining a comprehensive stability evaluation index for a target vehicle in multiple dimensions based on the model; the dimensions include at least two of longitudinal slip, sideslip, and roll; acquiring real-time dynamic parameters of the target vehicle; and determining desired control quantities for the dynamic parameters of the target vehicle in different dimensions based on the comprehensive stability evaluation index; and performing vehicle control based on the desired control quantities in different dimensions. This application enables coupled adjustment of the vehicle's stability state in different dimensions, solving the problem in existing technologies where different-dimensional stability control is incompatible under extreme vehicle operating conditions.
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