A control circuit and method for controlling contactors in a vehicle. The control circuit includes a driver circuit having an output coupled to a control terminal of the contactor, the driver circuit having a power input and a control input. A Boolean logic gate has an input coupled to a safety disabling control signal, a second input, and an output coupled to the control input of the driver circuit. A hold circuit has a first input coupled to a propulsive force loss signal, a second input coupled to a pulse width modulation (PWM) control signal, and an output coupled to the second input of the Boolean logic gate. Based on the output of the propulsive force loss detection circuit, the output of an output latch circuit is maintained in a previous Boolean logic state of the output of the output latch circuit or is based on the PWM control signal.

    一种用于控制车辆中的接触器的控制电路和方法。所述控制电路包括驱动器电路,所述驱动器电路具有耦合到接触器的控制端子的输出,所述驱动器电路具有电源输入和控制输入。布尔逻辑门具有耦合到安全禁用控制信号的输入、第二输入和耦合到所述驱动器电路的所述控制输入的输出。保持电路具有耦合到推进力损失信号的第一输入、耦合到脉冲宽度调制(PWM)控制信号的第二输入和耦合到所述布尔逻辑门的所述第二输入的输出。基于所述推进力损失检测电路的所述输出,输出锁存电路的所述输出维持在所述输出锁存电路的所述输出的先前布尔逻辑状态或者基于所述PWM控制信号。


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    Title :

    High voltage circuit and method for controlling contactors in electric vehicle


    Additional title:

    用于控制电动车辆中的接触器的高压电路和方法



    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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