装备EPAS车辆转向路感研究

Study on Road Feel of Vehicles Equipped with EPAS

建立了EPAS系统模型,推导了不同控制方式下车辆转向路感的传递函数表达式,并在MATLAB中进行了仿真分析,定性地分析了EPAS的不同控制方式和扭矩传感器刚度、电动机转动惯量等结构参数在汽车转向盘角阶跃输入下对系统响应特性的影响,为研究和开发EPAS打下了基础。

Had established the model of EPAS established, and inferred the transfer function of road feel at the different control methods. The simulation computation had been carried out in the MATLAB. Qualitative elaborated the influences of systematic response characteristics when the different control methods and structural parameters such as the stiffness of torque sensor, rotary inertia of motor and so on was applied to EPAS under the condition of steering wheel angle step input. It builds a foundation for research and development of EPAS.