• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (6): 228-237.doi: 10.3901/JME.2025.06.228

Previous Articles    

LPV/H Based on Dynamic Stability Region Cooperative Control of Vehicle Lateral and Longitudinal Stability

WANG Shanshan1, LIANG Jun1, CHEN Long1, CHEN Fengqiang2, HUA Guodong3   

  1. 1. School of Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013;
    2. Baosheng System Integration Technology Company Limited, Yangzhou 225800;
    3. Jiangsu Zhixing Future Automobile Research Institute, Nanjing 210000
  • Received:2024-03-21 Revised:2024-11-07 Published:2025-04-14

Abstract: Aiming at the problem that the driving stability and maneuverability of intelligent vehicles are difficult to be guaranteed simultaneously under extreme working conditions, a dynamic stability domain-based linear parametric varying(LPV/H) lateral-longitudinal stability cooperative control method is proposed. Firstly, a closed dynamic stability domain based on the β-β' phase plane is constructed by combining the bilinear method and the lateral swing angular velocity method, and the dynamic margin is designed to improve the boundary stability control performance under the ultimate working condition; secondly, a lateral-longitudinal cooperative control strategy based on the dynamic stability domain is constructed, and on this basis, the LPV/H lateral-longitudinal stability cooperative controller is designed to solve the conflict drawback between vehicle stability and maneuverability; finally, a high-speed low Finally, the effectiveness of the lateral-longitudinal stability control method is verified by selecting the high-speed and low attachment double-shift line condition. The experimental results show that the proposed lateral-longitudinal stability cooperative controller has a good control effect under extreme working conditions, enabling the controlled vehicle to quickly regain stability while avoiding transient instability. This approach enhances vehicle stability and actual maneuvering performance. Moreover, the proposed control method exhibits strong robustness to system parameter disturbances, providing theoretical support for active vehicle safety control.

Key words: lateral and longitudinal stability coordinated control, phase plane, dynamic stability region, LPV/H control

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