The invention relates to an under-voltage protection method for a motor control unit, and the method comprises the steps: receiving an enable signal of an active short-circuit circuit, wherein the enable signal represents whether to control a gate driver to start a switching tube in an upper bridge arm or a lower bridge arm in a three-phase inverter; receiving a second signal representative of a supply voltage applied to the three-phase inverter; and when the enable signal is 'true' and the power supply voltage represented by the second signal is lower than a preset threshold value, sending a closing signal to the gate driver to enable the switching tube in the upper bridge arm or the lower bridge arm in the three-phase inverter to be closed. The invention further relates to an under-voltage protection device, a motor control unit, a vehicle and a computer storage medium.
本发明涉及一种用于电机控制单元的欠压保护方法,所述方法包括:接收主动短路电路的使能信号,所述使能信号表示是否控制栅极驱动器开启三相逆变器中的上桥臂或下桥臂内的开关管;接收第二信号,所述第二信号代表施加给所述三相逆变器的电源电压;以及当所述使能信号为“真”,并且所述第二信号所表示的电源电压低于预设阈值时,向所述栅极驱动器发送关闭信号使得所述三相逆变器中的所述上桥臂或下桥臂内的所述开关管关闭。本发明还涉及一种欠压保护设备、电机控制单元、车辆以及计算机存储介质。
Undervoltage protection device and method
欠压保护设备及方法
2021-08-24
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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