基于底盘子系统协同控制的车辆防侧翻性能分析

Simulation of Anti-rollover Performance Based on Chassis Collaborative Control

由于重载车辆行驶路况和工况具有复杂性,仅对单一子系统进行控制有一定局限性。针对重载车辆非绊倒型侧翻问题,考虑采用主动横向稳定杆与连续可调阻尼半主动悬架协同控制,动态分配前、后横向稳定杆控制力,旨在达到主动控制车辆侧倾的目的。仿真结果表明,该协同控制方法可弥补主动横向稳定杆和半主动悬架控制在单独使用时暴露的局限性,实现防止车辆侧翻的目的,并可在一定程度上改善车辆的行驶稳定性。

Due to the complexity of heavy vehicles traffic and driving cycles, only a standalone control system for anti-rollover has its own limitations. Aiming at the heavy vehicles un-tripped rollover problem,a cooperative control algorithm of continuously adjustable damping semi-active suspension andactive anti-roll bar with dynamic force allocation was proposed. From the simulation results, it is indicated that the cooperative methodology can compensate for the respective limitations of semi-active suspension and anti-roll bar for preventing vehicle rollover and improving vehicle stability to a certain extent.