The present invention relates to a resolver offset correction method for controlling a motor of an eco-friendly vehicle, capable of automatically correcting a resolver offset resulting from an inverter switching type and a switching frequency difference. The method according to the present invention has been devised in consideration of a problem that a resolver offset correction value becomes incorrect when a switching type such as space vector pulse width modulation (SVPWM) or discontinuous pulse width modulation (DPWM) and a switching frequency of a power switching module of an inverter are changed. Thus, resolver offset correction with respect to the switching type (SVPWM, DPWM) and a switching frequency fluctuation of the power switching module of the inverter is additionally performed, and thus the accuracy of the resolver offset correction is improved, thereby the maximum efficiency operation point of the motor can be always realized. The method comprises the following steps: calculating a first resolver offset correction value; calculating a second and a third resolver offset correction value; calculating a fourth resolver offset correction value; and adding each calculated resolver offset correction value to the previous resolver offset correction value to calculate a new resolver offset correction value.

    본 발명은 인버터 스위칭 방식 및 스위칭 주파수 차이에 따른 레졸버 옵셋을 자동으로 보정할 수 있도록 한 친환경 차량의 모터 제어를 위한 레졸버 옵셋 보정 방법에 관한 것이다. 즉, 본 발명은 인버터의 파워 스위칭모듈의 스위칭 방식(SVPWM, DPWM) 및 스위칭 주파수가 변경될 때, 레졸버 옵셋 보정값이 부정확해지는 점을 감안하여 안출한 것으로서, 인버터의 파워 스위칭모듈의 스위칭 방식(SVPWM, DPWM) 및 스위칭 주파수변동에 대한 레졸버 옵셋 보정을 추가로 더 실시함으로써, 레졸버 옵셋 보정의 정밀도를 향상시켜서 항상 모터 최대효율 운전점이 구현될 수 있도록 한 친환경 차량의 모터 제어를 위한 레졸버 옵셋 보정 방법을 제공하고자 한 것이다.


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    Title :

    Method for correcting resolver offset for conrolling motor


    Additional title:

    친환경 차량의 모터 제어를 위한 레졸버 옵셋 보정 방법


    Contributors:
    LIM JAE SANG (author) / KIM YOUNG UN (author) / KIM SEONG MIN (author) / RHO JEONG WON (author) / CHA JI WAN (author) / KANG GU BAE (author)

    Publication date :

    2017-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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