一种基于转向意图的车辆敏捷性控制策略

doi:10.13229/j.cnki.jdxbgxb.20210886

Abstract

Abstract:

In order to improve the agility and safety of emergency steering, a steering intention-based agility control strategy based on active lateral stabilizer bar system was proposed. The rolling dynamics mechanism of wheel load transfer during steering is analyzed and an improved driver steering intention recognition method is developed. According to the steering intention and the vehicle roll dynamics mechanism, the left and right wheel loads on the front and rear axles were dynamically distributed, and the stability control method was introduced to improve the agility control strategy during vehicle driving. Simulink-CarSim vehicle model was built for simulation and verification. The simulation results show that compared with traditional vehicles, the use of steering wheel angle decreases by about 9%, the peak angle of centroid side angle decreases by about 22%, and the yaw angle speed increases by 4%. Emergency steering control is achieved by using smaller steering wheel angle to improve the yaw steering response, and the agility and stability of the vehicle are enhanced. Finally， the simulation algorithm is verified on the ECU in-the-loop test bench and laid the foundation for the subsequent development of stabilizer rod prototypes.

Key words: vehicle engineering, agility control, driver intention identification, simulation verification

CLC Number:

U461.6

Lei CHEN,Yang WANG,Zhi-sheng DONG,Ya-qi SONG. A vehicle agility control strategy based on steering intent[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1257-1263.

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References 12

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参数	数值
整车质量/kg	2825
簧上质量/kg	2515
簧下质量/kg	310
轴距/mm	3110
前、后轴距/mm	1702/1684
轮胎型号	275/65 R18

A vehicle agility control strategy based on steering intent

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