The invention provides a heating control method for a power battery, a motor controller, a power system and a vehicle, and the method comprises the steps: responding to a condition that the power battery meets a battery heating starting condition, and alternately outputting a first control signal and a second control signal to an inverter; the first control signal is used for controlling the inverter to input a first target electrical parameter to a first shaft of the induction motor, and the second control signal is used for controlling the inverter to input a second target electrical parameter to a second shaft of the induction motor; the first axis is one of the direct axis and the quadrature axis of the induction motor, the second axis is the other one of the direct axis and the quadrature axis of the induction motor, the first target electrical parameter and the second target electrical parameter are respectively used for generating alternating pulse current on a direct current bus of the power battery to heat the power battery, and the power battery is in response to the power battery meeting a battery heating stop condition. And stopping alternately outputting the first control signal and the second control signal. According to the embodiment of the invention, the discharge performance of the power battery can be improved, so that the vehicle performance and user driving experience are improved.
本公开提供了一种动力电池的加热控制方法、电机控制器、动力系统及车辆,该方法响应于动力电池满足电池加热开启条件,交替输出第一控制信号和第二控制信号至逆变器;第一控制信号用于控制逆变器向感应电机的第一轴输入第一目标电参数,第二控制信号用于控制逆变器向感应电机的第二轴输入第二目标电参数;第一轴为感应电机的直轴或交轴之一,第二轴为感应电机的直轴或交轴之另一,第一目标电参数和第二目标电参数分别用于在动力电池的直流母线上产生交变的脉冲电流来对动力电池加热,响应于动力电池满足电池加热停止条件,停止交替输出第一控制信号和第二控制信号。本公开实施例,可以提升动力电池的放电性能,从而提升车辆性能和用户驾驶体验。
Heating control method of power battery, motor controller, power system and vehicle
动力电池的加热控制方法、电机控制器、动力系统及车辆
2024-05-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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