According to the active short-circuit logic control circuit of the motor controller provided by the invention, the upper bridge ASC control circuit and the lower bridge ASC control circuit both receive a fault response ASC signal of the detection circuit, an enable signal of the main control chip and a signal output by a safety pin of the main monitoring chip to form three ASC paths which are mutually independent, so that the safety is relatively high, and the design requirement of functional safety of an electric drive system is met; the new energy automobile is safer and more reliable; and two power supply modes of the vehicle-mounted driving power supply and the high-voltage backup power supply are arranged, so that active short-circuit protection can be realized under the condition of low-voltage power failure or abnormal line of the vehicle-mounted driving power supply. The problems that an active short-circuit logic control circuit ASC of a motor controller is few in implementation path and low in reliability and safety are solved.
本发明提供一种电机控制器的主动短路逻辑控制电路,上、下桥ASC控制电路均接收由检测电路故障响应ASC信号、主控芯片使能信号以及主监控芯片的安全引脚输出的信号,形成三个ASC路径互相独立,安全性较高,满足电驱系统功能安全的设计要求,使新能源汽车更加安全可靠;且设有车载驱动电源、高压备份电源两种供电方式,能够在低压掉电或车载驱动电源线路异常情况下也能实现主动短路保护。解决电机控制器的主动短路逻辑控制电路ASC实现路径少,可靠性和安全性不高的问题。
Active short-circuit logic control circuit of motor controller
一种电机控制器的主动短路逻辑控制电路
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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