Development and Research of Vehicle Active Air Suspension Control System
Taking the active air suspension as the research object,a 1/4 dynamic model is established.Aiming at the disadvantages of strong nonlinear characteristics and easy external interference of suspension system,the fuzzy sliding mode control algorithm is selected to design and develop the active suspension control system.Use Simulink software to model the suspension control system and design the control system hardware.The effec-tiveness of the designed control algorithm is verified by hardware-in-loop simulation.The results show that the designed active suspension control system improves 24.52%,29.40%and 9.72%respectively in terms of body acceleration,suspension dynamic deflection and tire dynamic displacement compared with the passive suspension,which effectively improves the handling stability of the vehicle and the comfort of the vehicle.
Active air suspensionNonlinearFuzzy sliding mode controlControl system
NETL
NSTL
万方数据
维普
