The invention provides a motor controller switching circuit and method, electronic equipment and a vehicle. The circuit comprises a comparison circuit, a signal conversion circuit and a state switching circuit. The comparison circuit is used for comparing a first signal representing the rotating speed of the motor with a second signal representing the bus voltage and outputting a pulse width modulation signal; the signal conversion circuit converts the pulse width modulation signal into a voltage signal; the state switching circuit is used for switching the motor controller into an open circuit protection state when the voltage signal is smaller than a first threshold value; when the voltage signal is larger than the first threshold value and smaller than the second threshold value, the motor controller is switched to be in an active short-circuit protection state; when the voltage signal is larger than a second threshold value, the motor controller is switched to be in a zero-torque state; the working state of the motor controller is adjusted according to the rotating speed of the motor, so that the safety of the motor is improved.
本申请提供一种电机控制器切换电路、方法、电子设备和车辆,电路包括比较电路、信号转换电路和状态切换电路;比较电路将表征电机转速的第一信号与表征母线电压的第二信号进行比较,并输出脉宽调制信号;信号转换电路将脉宽调制信号转换成电压信号;状态切换电路用于在电压信号小于第一阈值时,将电机控制器切换为开路保护状态;在电压信号大于第一阈值且小于第二阈值时,将电机控制器切换为主动短路保护状态;以及在电压信号大于第二阈值时,将电机控制器切换为零扭矩状态;实现了根据电机转速,调节电机控制器的工作状态,从而提高了电机的安全性。
Motor controller switching circuit and method, electronic equipment and vehicle
电机控制器切换电路、方法、电子设备和车辆
03.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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