The invention discloses a steering system power supply control circuit, a control method and an automobile EPS control system. The control circuit comprises a main controller, a power supply management chip, a switch driving circuit and a bus power supply control switch circuit. The main controller is used for sending a switch control signal to the switch driving circuit; the switch driving circuit comprises an isolating circuit and a booster circuit, and is used for performing isolated transmission on the switch control signal through the isolating circuit, performing boosting rectification through the booster circuit to obtain a switch driving signal, and sending the switch driving signal to the bus power supply control switch circuit; and the bus power supply control switch circuit comprises two MOS (Metal Oxide Semiconductor) tubes and a filter circuit and is used for driving the MOS tubes to be switched on or switched off according to the switch driving signal so as to control a bus power supply of the motor. According to the invention, the bus power supply of the motor can be cut off when the EPS system crashes or enters an endless loop, and the system safety is higher.

    本发明公开了一种转向系统电源控制电路、控制方法及汽车EPS控制系统,其中控制电路包括主控制器、电源管理芯片、开关驱动电路和母线电源控制开关电路;主控制器用于向开关驱动电路发送开关控制信号;开关驱动电路包括隔离电路和升压电路,用于通过隔离电路对开关控制信号进行隔离传输,并通过升压电路进行升压整流后,得到开关驱动信号发送至母线电源控制开关电路;母线电源控制开关电路包含两个MOS管和滤波电路,用于根据开关驱动信号驱动MOS管导通或者关断,从而控制电机的母线电源。本发明可实现在EPS系统崩溃或进入死循环时将电机的母线电源切断,具有更高的系统安全性。


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    Title :

    Steering system power supply control circuit, control method and automobile EPS control system


    Additional title:

    转向系统电源控制电路、控制方法及汽车EPS控制系统


    Contributors:

    Publication date :

    2024-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B62D MOTOR VEHICLES , Motorfahrzeuge / 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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