The invention provides a motor controller power supply control method and control circuit, and relates to the field of motor control, and the method comprises the steps: providing a main power supply and a redundant power supply, the main power supply is powered by a low-voltage battery, and the redundant power supply is powered by a high-voltage battery; the main power supply switching switch is closed, and the redundant power supply switching switch is disconnected, so that the main power supply is connected to the control system for power supply; the voltage of the low-voltage battery is monitored in real time by adopting a low-voltage detection circuit, and when the voltage of the low-voltage battery is monitored to be lower than a first threshold value, the redundant power supply fling-cut switch is switched on, and the main power supply fling-cut switch is switched off at the same time; the high-voltage detection circuit is adopted to monitor the voltage of the high-voltage battery in real time, when the monitored voltage of the high-voltage battery is lower than a second threshold value, the control system controls the redundant power supply to be disconnected through a reverse instruction, and the problems that an existing redundant power supply only depends on hardware switching-in, and when the high-voltage battery exceeds a safe working voltage range, the redundant power supply cannot be switched-out, and potential safety hazards exist are solved.
本发明提供了一种电机控制器供电控制方法和控制电路,涉及电机控制领域,包括:提供一主电源和冗余电源,其中,所述主电源由低压电池供电,所述冗余电源由高压电池供电;闭合主电源投切开关,断开冗余电源投切开关,使得主电源连通至控制系统供电;采用低压检测电路实时监测低压电池的电压,当监测到低压电池的电压低于第一阈值,则闭合冗余电源投切开关,同时断开主电源投切开关;采用高压检测电路实时监测高压电池的电压,当监测到高压电池的电压低于第二阈值,控制系统反向指令控制断开冗余电源,解决现有冗余电源仅依赖硬件切入,当高压电池超出安全工作电压范围无法切出,存在安全隐患的问题。
Motor controller power supply control method and control circuit
一种电机控制器供电控制方法和控制电路
2023-09-01
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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