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汽车DYC的LQG/LTR鲁棒控制方法研究

Keywords: 横摆力矩控制系统,线性二次型高斯控制/回路传输复现方法,鲁棒控制

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Abstract:

针对直接横摆力矩控制(DYC)系统控制方法,建立了车辆侧向动力学的线性二自由度状态空间模型,设计了DYC系统的LQG/LTR鲁棒控制器.建立了能反映车辆转向工况基本动力学性质的七自由度车辆系统动力学模型,在MATLAB/Simulink环境下对开发的LQG/LTR控制器进行了系统仿真分析.仿真结果验证了该控制方法的可行性和有效性,不同路面附着系数与不同转向工况的控制效果表明,设计的控制器具有较强的鲁棒性和自适应性.

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