The invention relates to a motor controller, a vehicle and a discharging method. The motor controller comprises a bus capacitor, a three-phase bridge arm circuit, a voltage division circuit and a control circuit. The bus capacitor is connected in parallel with the battery through the switching circuit; each phase of bridge arm circuit is connected with the bus capacitor in parallel, the output end of each phase of bridge arm circuit is used for being connected with a corresponding motor winding, and the control end of each phase of bridge arm circuit is connected with the control circuit; the voltage division circuit is connected in parallel with the bus capacitor, and the output end of the voltage division circuit is connected with the control circuit; wherein the control circuit is used for controlling a target bridge arm circuit to discharge the bus capacitor according to a disconnection signal of the switching circuit under the condition that at least one phase of bridge arm circuit is normal, the target bridge arm circuit is one of all the normal bridge arm circuits, and the control circuit is used for controlling the target bridge arm circuit to discharge the bus capacitor according to the disconnection signal of the switching circuit under the condition that each phase of bridge arm circuit fails. And the voltage division circuit is controlled to discharge the bus capacitor according to the disconnection signal of the switching circuit, so that the bus capacitor is discharged.
本申请涉及一种电机控制器、车辆和放电方法。电机控制器包括母线电容、三相桥臂电路、分压电路和控制电路;母线电容用于通过开关电路与电池并联连接;每相桥臂电路与母线电容并联连接,每相桥臂电路的输出端用于与对应的电机绕组连接,每相桥臂电路的控制端与控制电路连接;分压电路与母线电容并联连接,分压电路的输出端与控制电路连接;其中,控制电路用于在至少一相桥臂电路为正常的情况下,根据开关电路的断开信号控制目标桥臂电路对母线电容进行放电,目标桥臂电路为所有正常的桥臂电路中的一个,以及用于在各相桥臂电路均故障的情况下,根据开关电路的断开信号控制分压电路对母线电容进行放电,实现了对母线电容的放电。
MOTOR CONTROLLER, VEHICLE, AND DISCHARGE METHOD
电机控制器、车辆和放电方法
2024-12-20
Patent
Electronic Resource
Chinese
IPC: | 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 / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
Electric vehicle motor controller discharge circuit and vehicle
European Patent Office | 2020
|High-voltage redundant discharge device of vehicle-mounted motor controller
European Patent Office | 2025
|Vehicle, motor controller of vehicle and control method of motor controller
European Patent Office | 2024
|Motor controller, motor comprising motor controller and vehicle
European Patent Office | 2024
|Active discharge control method and device of bus capacitor, motor controller and vehicle
European Patent Office | 2022
|