The invention discloses a hybrid power system and a method for obtaining an engine crankshaft angle in the system. The method comprises the steps: obtaining a motor rotary transformer signal; determining an accumulative count according to the motor rotary transformer signal; determining an angle represented by the motor rotary transformer signal according to the motor rotary transformer signal and the accumulative count; and determining the engine crankshaft angle according to the angle represented by the motor rotary transformer signal and the corresponding relation between the angle represented by the motor rotary transformer signal and the engine crankshaft angle. According to the method, high-precision identification of the crankshaft angle of the engine can be realized without additional hardware, and the identification real-time performance is good.

    本发明公开了混合动力系统以及获取系统中发动机曲轴转角的方法,其中方法包括:获取电机旋转变压器信号;根据电机旋转变压器信号确定累加计数;根据电机旋转变压器信号和累加计数确定电机旋转变压器信号表征的角度;根据电机旋转变压器信号表征的角度,以及电机旋转变压器信号表征的角度与发动机曲轴转角的对应关系,确定发动机曲轴转角。该方法无需设置额外硬件就可以实现对发动机曲轴转角的高精度辨识,且辨识的实时性好。


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    Title :

    Hybrid power system and method for obtaining engine crankshaft angle in system


    Additional title:

    混合动力系统以及获取系统中发动机曲轴转角的方法


    Contributors:
    JU LONGYU (author) / YU PING (author) / YANG FUYUAN (author) / WU JUN (author) / YANG PENGBING (author)

    Publication date :

    2021-09-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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