The application provides a vehicle and a power battery temperature control device thereof. At least one of a three-phase inverter and a three-phase alternating current motor in the power battery temperature control device and a first valve form an electric drive cooling loop through a heat exchange medium pipeline, and the first valve and a power battery form a battery cooling loop through a heatexchange medium pipeline; the control module detects that the temperature of the power battery is lower than a preset temperature and heating conditions are satisfied, the first valve is controlled tocommunicate the electric drive cooling loop with the battery cooling loop; the three-phase inverter and the three-phase alternating current motor are controlled to heat a heat exchange medium in theelectric drive cooling loop, so that the heating of the power battery is realized. The three-phase inverter is controlled to adjust the phase current of the three-phase alternating current motor according to the obtained preset direct-axis current and the preset quadrature-axis current in the heating process; therefore, the motor shaft outputs an electromagnetic torque that has a very small torquevalue, cannot enable a vehicle to move, does not damage the parts of a vehicle transmission mechanism; and the vehicle is effectively prevented from shaking.
本申请提出了一种车辆及其动力电池温度控制装置,动力电池温度控制装置中三相逆变器和三相交流电机中的至少一个与第一阀门通过换热介质管线构成电驱冷却回路,第一阀门和动力电池通过换热介质管线构成电池冷却回路;控制模块检测动力电池的温度低于预设温度,并且满足加热条件时,控制第一阀门使电驱冷却回路和电池冷却回路互通,并控制三相逆变器和三相交流电机加热电驱冷却回路中的换热介质,以此实现对动力电池的加热,且在加热过程中根据获取的预设直轴电流和预设交轴电流控制三相逆变器对三相交流电机的相电流进行调节,使得电机轴输出无法使得车辆移动、也不会对车辆传动机构零部件造成损伤的转矩值很小的电磁转矩,有效防止车辆发生抖动。
Vehicle and power battery temperature control device thereof
车辆及其动力电池温度控制装置
30.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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