Integrated control of semi-active suspension and vehicle dynamics control system
This paper dedicated to investigate the integration of semi-active suspension and vehicle dynamics control system. Semi-active suspension (typically composed of a controlled damper and a passive spring) could improve the ride performance of vehicle by controlling the damper and spring. A vehicle dynamics control (VDC) system can enhance vehicle stability and handling in emergency situations through the control of traction and braking forces at individual wheels. A nonlinear control system is designed to coordinate interactions between semi-active suspension and VDC. A multi-body vehicle dynamic model is established in this paper, the multi-body vehicle dynamic model based on ADAMS can accurately predict the dynamics performance of the vehicle. The integrated controller for VDC and semi-active suspension is established according to the longitudinal motion, lateral motion and vertical motion of the vehicle. A fuzzy logic controller for VDC and a skyhook controller for semi-active suspension controllers are established using Matlab/Simulink software. The road roughness is crucial to vehicle vibration analysis. Thus, the co-simulation of ADAMS and Matlab/Simulink scenario is performed to demonstrate the effectiveness of the proposed controllers. The simulation results show that the VDC controller and the semi-active suspension controller are effective, and the integrated chassis control system can enhance both of vehicle handling stability and ride performance greatly.
semi-active VDC ride handling ADAMS fuzzy logic skyhook matlab/simulink co-simulation
Ping He Yiqi Wang Yunqing Zhang Yang liu Youzhong Xu
Huazhong University of Science & Technology, Wuhan, Hubei 430074, P.R.China Chery Automotive Engineering Research Institute, Wuhu, Anhui 241006, P.R.China
国际会议
太原
英文
63-68
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）