The invention relates to a motor controller, a driving method and a driving circuit thereof, and a motor vehicle. The driving method comprises the following steps: judging whether a phase current corresponding to each phase bridge arm meets a first condition or a second condition, wherein the first condition is different from the second condition; if the first condition is met, outputting a driving signal for driving the switching device to only one switching device of the upper switching device and the lower switching device included in the phase bridge arm; when the second condition is satisfied, outputting the drive signal only to the other one of the upper switching device and the lower switching device included in the bridge arm of the phase. Therefore, the loss of the gate driving power supply can be reduced, the gate driving power supply can be designed to be half of the original power, the gate resistor is heated only in the half cycle of the phase current, the generated heat can be reduced to be half of the original heat, and the breakdown of the switching device in each phase bridge arm can be prevented to the maximum extent.

    本公开涉及一种电机控制器及其驱动方法和驱动电路、机动车。该驱动方法包括:判断各相桥臂所对应的相电流是满足第一条件还是满足第二条件,其中所述第一条件与所述第二条件不同;若满足所述第一条件,则仅向该相桥臂所包括的上部开关装置和下部开关装置中的一个开关装置输出用于驱动该开关装置的驱动信号;若满足所述第二条件,则仅向该相桥臂所包括的上部开关装置和下部开关装置中的另一个开关装置输出所述驱动信号。由此,可以降低栅极驱动电源的损耗,栅极驱动电源可被设计为原始功率的一半,并且栅极电阻仅在相电流的半周期内被加热,产生的热量可以减少到原始热量的一半,可最大限度地防止各相桥臂内的开关装置的击穿。


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    Title :

    Motor controller, driving method and driving circuit thereof, and motor vehicle


    Additional title:

    电机控制器及其驱动方法和驱动电路、机动车


    Contributors:
    HAYASHI AKIRA (author) / LUO XINHUA (author)

    Publication date :

    2021-02-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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