The invention provides a rotating speed control method and device for an oil pump motor and a steering oil pump controller, and belongs to the technical field of electric automobiles. The rotating speed control method comprises the steps that a control instruction sent by a vehicle control unit is received, and the oil pump motor is controlled to work according to the set rotating speed based on the control instruction so as to provide hydraulic oil for a steering oil tank; the real-time environment temperature of the oil pump motor and the corresponding relation between the rotating speed deviation of the oil pump motor and the environment temperature are obtained; based on the real-time environment temperature and the corresponding relation, the rotating speed compensation value of the oil pump motor is determined; and correcting the rotating speed deviation of the oil pump motor based on the rotating speed compensation value. According to the method, the rotating speed compensation value of the oil pump motor is determined through the real-time environment temperature of the oil pump motor and the corresponding relation between the rotating speed deviation of the oil pump motor and the environment temperature, and the technical problems that the success probability of cold starting of the electric vehicle under the extremely low temperature working condition is low, the motor starting performance is poor, and the fault occurrence frequency is high are solved.
本发明提供一种油泵电机的转速控制方法、装置及转向油泵控制器,属于电动汽车技术领域,包括:接收整车控制器发送的控制指令,基于所述控制指令控制油泵电机按照设定转速工作,以给转向油罐提供液压油;获取油泵电机所处的实时环境温度,以及油泵电机的转速偏差与环境温度之间的对应关系;基于所述实时环境温度以及所述对应关系,确定油泵电机的转速补偿值;基于所述转速补偿值对油泵电机的转速偏差进行修正。本发明通过油泵电机所处的实时环境温度,以及油泵电机的转速偏差与环境温度之间的对应关系,确定油泵电机的转速补偿值,解决电动汽车在极端低温工况冷启动的成功概率较低、电机启动性能较差、故障发生频次较高的技术问题。
Rotating speed control method and device of oil pump motor and steering oil pump controller
油泵电机的转速控制方法、装置及转向油泵控制器
2024-10-25
Patent
Electronic Resource
Chinese
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