The invention provides a power device fault detection device, a motor controller, an electric vehicle and a method, the power device fault detection device comprises an inversion module, a control module and a current detection module, the control module is connected with the inversion module, and the current detection module is connected in a loop formed by a power supply device and an alternating current load. And the current detection module is also connected with the control module. The control module is used for responding to the fault detection instruction, generating a first control signal to control the first target power device to be switched on, and generating a second control signal to control other power devices except the first target power device in the inversion module to be in a switched-off state; obtaining the current of the loop through a current detection module, and determining whether a second target power device in the inversion module breaks down or not based on the current; wherein the first target power device is one of the first power device and the second power device, and the second target power device is the other one of the first power device and the second power device.
本公开提供了一种功率器件故障检测装置、电机控制器、电动车及方法,其中,该功率器件故障检测装置包括:逆变模块、控制模块、以及电流检测模块,控制模块与逆变模块连接,电流检测模块连接于电源装置与交流负载所形成的回路中,电流检测模块还与控制模块连接。控制模块用于响应故障检测指令,生成第一控制信号以控制第一目标功率器件打开,并生成第二控制信号以控制逆变模块中除第一目标功率器件之外的其他功率器件处于关闭状态;通过电流检测模块获取回路的电流,并基于电流确定逆变模块中的第二目标功率器件是否故障;其中,第一目标功率器件为第一功率器件与第二功率器件其中之一,第二目标功率器件为第一功率器件与第二功率器件其中另一。
Power device fault detection device, motor controller, electric vehicle and method
功率器件故障检测装置、电机控制器、电动车及方法
2024-05-31
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 |
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