The present invention relates to a method for calculating an absolute steering angle. The method for calculating an absolute steering angle comprises: a step of measuring the rotation angle of a first sub-gear, which is coupled to the outer surface of a main gear where a plurality of rotation angle measuring units are connected to a steering shaft and is rotated in a uniform rotation ratio, and the rotation angle of a second sub-gear having relatively less number of teeth than the first sub-gear; a step of calculating a phase offset between the first and the second sub-gear through each rotation angle for measuring a phase offset calculating unit; a step in which a zero point setting unit reflects the calculated phase offset to set a zero point with respect to a rotation angle between the first and the second sub-gear; and a step of calculating an absolute steering angle of the steering shaft based on a zero point where an absolute steering angle calculation unit is set. Accordingly, the present invention removes an error generated when an absolute steering angle is calculated.

    본 발명은 절대조향각 연산 방법에 관한 것으로, 복수의 회전각 측정부가 조향축에 연결된 메인 기어의 외주면에 결합되어 일정한 회전비로 회전하는 제1서브 기어와 제1서브 기어보다 상대적으로 더 적은 기어 잇수를 갖는 제2서브 기어의 회전각을 각각 측정하는 단계, 페이즈 오프셋 연산부가 측정되는 각각의 회전각을 통해 제1서브 기어와 제2서브 기어 간의 페이즈 오프셋(Phase Offset)을 연산하는 단계, 영점 설정부가 연산된 페이즈 오프셋을 반영하여 제1서브 기어와 제2서브 기어 간의 회전각에 대한 영점을 설정하는 단계 및 절대조향각 연산부가 설정되는 영점에 기초하여 조향축의 절대조향각을 연산하는 단계를 포함한다.


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    Titel :

    METHOD FOR CALCULATING ABSOLUTE STEERING ANGLE


    Weitere Titelangaben:

    절대조향각 연산 방법


    Beteiligte:

    Erscheinungsdatum :

    2016-03-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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