Research on Switching Interconnection Modes and Game Control of Interconnected Air Suspension

Energies

Liqin Sun¹  Yong Lin¹  Zhongxing Li¹  Haobin Jiang¹  Guoqing Geng¹ 

[1] School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China;

关键词: interconnected air suspension system;    coordinated control;    interconnection modes;    differential game;    ride comfort;    handling stability;   

DOI  :  10.3390/en12173218

来源: DOAJ

【 摘 要 】

To solve the contradiction between handling stability and ride comfort of vehicles with interconnected air suspension system (IASS) and reduce the energy consumption of air suspension with adjustable spring stiffness, a coordinated control for dynamic performance was designed based on the logic of switching interconnection modes and game control for the damper. The control system consists of a switching controller for air suspension interconnection modes and a distribution controller for the damping force. The switching controller determines the optimal air suspension interconnection mode by calculating the vehicle dynamic performance index in real-time. The distribution controller achieves a distribution for optimal damping force based on an infinite time differential game. veDYNA software that is a vehicle dynamics analysis software based on MATLAB/Simulink was used to verify the algorithm, and the accuracy was verified by a bench test. Finally, the results show this coordinated system can significantly improve the ride comfort and restrain the pitching motion. Compared with traditional suspension, the vertical acceleration decreases by 18.32% and the dynamic stroke decreases by more than 10% under the straight condition; the vertical acceleration decreases by 12.24% and the roll angle decreases by 1.26% under the steering condition.

【 授权许可】

Unknown