Ramp auxiliary control method of driving motor system for pure electric truck

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Ramp auxiliary control method of driving motor system for pure electric truck

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SHAO MINGXIN / FANG ZHAOXIANG / ZHANG SHUN

The invention discloses a ramp auxiliary control method of a driving motor system for a pure electric truck, and belongs to the technical field of ramp assistance, and the control method comprises thefollowing steps: S100, ramp auxiliary control judgment; S200, executing ramp auxiliary control; S300, exiting the ramp auxiliary control; and S400, judging whether ramp control is entered again; according to the method, real-time judgment can be carried out according to application situations; after the vehicle reaches the entering condition of ramp auxiliary control, the control mode of the motor controller is switched from normal torque closed-loop control to a rotating speed closed-loop control mode, the rotating speed of the vehicle is controlled to be zero, sufficient time is reserved for a driver to switch a brake pedal to an accelerator pedal, conventional PID control is adopted, and the control method is stable and reliable.

本发明的一种纯电动卡车用驱动电机系统坡道辅助控制方法，属于坡道辅助技术领域，控制方法包括以下步骤：S100，坡道辅助控制判断；S200，坡道辅助控制执行；S300，退出坡道辅助控制；S400，判断是否重新进入坡道控制，此方法能够根据适用情形进行实时判断，当车辆达到坡道辅助控制的进入条件后，电机控制器的控制模式由正常的扭矩闭环控制切换为转速闭环控制模式，控制车辆转速为零，给驾驶员留出充足的时间进行制动踏板到油门踏板的切换，采用常规PID控制，稳定可靠。