Method and device for determining road adhesion coefficient, storage medium and electronic equipment

By comprehensively utilizing sensor acceleration and vehicle traction information, dynamically adjusting weights, and fusing IMU sensors and dynamic models, the problem of low accuracy in calculating road adhesion coefficient is solved, thereby improving the vehicle's handling stability and safety in complex environments.

CN122166109APending Publication Date: 2026-06-09SAIC MOTOR
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Patent Information

Application Number
CN202411801240.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, the accuracy of road surface adhesion coefficient calculation is low, especially in complex and variable road environments where it is difficult to estimate accurately, affecting the braking and handling stability of vehicles.

Method used

By comprehensively utilizing acceleration information and vehicle traction force collected by sensors, combined with information such as accelerator pedal, brake pedal and yaw rate of change, the weights are dynamically adjusted, and the estimation results of IMU sensors and dynamic models are integrated to determine the target road surface adhesion coefficient.

Benefits of technology

It significantly improves the estimation accuracy of road adhesion coefficient under complex and changing working conditions, provides more reliable data support, and enhances the accuracy of vehicle dynamic stability control and safe driving.

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Abstract

The embodiment of the invention provides a road adhesion coefficient determination method and device, a storage medium and electronic equipment, and the method comprises the steps: determining a first road adhesion coefficient according to the acceleration, collected by a sensor, of a target vehicle; a second road adhesion coefficient is determined according to the traction force of the target vehicle, the weight of the second road adhesion coefficient is determined according to change information of the target vehicle, and the change information at least comprises one of the following information: an accelerator pedal opening change rate, a brake pedal opening change rate and a yaw velocity change rate; and determining a target road adhesion coefficient according to the first road adhesion coefficient, the second road adhesion coefficient and the weight of the second road adhesion coefficient, thereby solving the problem of low accuracy of the calculated road adhesion coefficient in related technologies.
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