张缓缓;李庆望;彭博;高超;严帅;

• 1:上海工程技术大学

摘要(Abstract)：

为了提高紧急避障工况下分布式驱动电动汽车的稳定性,提出了一种基于纵向力优化的转矩分配策略。控制器采用分层控制:在上层控制器中,根据纵向力的需求,基于线性二次型控制算法计算出控制横摆角速度与质心侧偏角所需的附加横摆力矩;在下层控制器中,考虑各约束条件,将计算出的附加横摆力矩合理地分配给各轮。分别利用CarSim和MATLAB/Simulink搭建整车模型和控制策略模型,进行联合仿真。仿真结果表明,所提出的转矩分配策略可以有效地保证车辆的稳定性,同时通过减少制动力在主动安全控制中的参与范围,起到减少能量损耗的作用。

关键词(KeyWords)： 分布式驱动;电动汽车;转矩分配;车辆稳定性;PID控制;线性二次型调节器

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51705306)

作者(Authors): 张缓缓;李庆望;彭博;高超;严帅;

DOI: 10.19620/j.cnki.1000-3703.20180954

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