In the present application, a motor control circuit is composed of a three-phase inverter, a three-phase alternating-current motor and a first current sensing module. Therefore, the motor control circuit can work in a motor driving mode and in a charging mode; in the charging mode, the working state of the three-phase inverter is controlled, so that the three-phase alternating-current motor can boost the external power supply voltage to charge the power battery; in the motor driving mode, the working state of the three-phase inverter is controlled, so that the three-phase inverter can drive the three-phase alternating-current motor according to the voltage output by the power battery, so that reuse of the three-phase inverter in two working modes is achieved. Other switching elements do not need to be added, the circuit structure is simple, the cost is low, the reliability is high; and then problems that in the prior art, a motor driving and charging system is high in overall cost, andthe adaptability of the whole vehicle charging function is low are solved.
在本申请中,通过三相逆变器、三相交流电机以及第一电流传感模块的电机控制电路,使得该电机控制电路不但可以工作在电机驱动模式,并且也可以工作在充电模式,且在充电模式中控制三相逆变器的工作状态便可使得三相交流电机对外部供电电压进行升压向动力电池充电,而在电机驱动模式中控制三相逆变器的工作状态便可使得三相逆变器根据动力电池输出的电压对三相交流电机进行驱动,实现了在两种工作模式下对三相逆变器的复用,无需增加其他开关元件,电路结构简单、成本低且可靠性高,进而解决了现有技术存在电机驱动与充电系统总体成本高且整车充电功能的适应性低的问题。
Vehicle, charging device and motor control circuit
一种车辆、充电装置、电机控制电路
2020-06-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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