本发明得到一种角度检测装置,对于角度信号中所包含的角度信号的电气角频率分量以外的阶数分量也能抑制角度误差。利用从将角度信号(θr)设为n倍(n为不同于1的实数)而得的第一n倍角度信号(3θr)中得到的第1正弦波信号(S(3θr))和第2正弦波信号(C(3θr))来运算第二n倍角度信号(3θr2),根据第二n倍角度信号(3θr2)分别运算第1正弦波信号(S(3θr))和第2正弦波信号(C(3θr))的偏移校正值(es,ec),将运算出的第1正弦波信号(S(3θr))的偏移校正值(es)与第一n倍角度信号(3θr)相加来校正第1正弦波信号(S(3θr)),并将运算出的第2正弦波信号(C(3θr))的偏移校正值(ec)与第2正弦波信号(C(3θr))相加来校正第二n倍角度信号(3θr2)。

    An angle detection device such that an angle error is restricted even with respect to an angle signal component of an order other than that of an electrical angle frequency component included in an angle signal is obtained. A second n-fold angle signal (3θr2) is calculated using a first sine wave signal (S(3θr)) and a second sine wave signal (C(3θr)) obtained from a first n-fold angle signal (3θr) that is an angle signal (θr) multiplied by n (n is a real number other than 1), offset correction values (es and ec) of the first sine wave signal (S(3θr)) and the second sine wave signal (C(3θr)) respectively are calculated from the second n-fold angle signal (3θr2), the first sine wave signal (S(3θr)) is corrected by the calculated offset correction value (es) of the first sine wave signal (S(3θr)) being added to the first n-fold angle signal (3θr), and the second n-fold angle signal (3θr2) is corrected by the calculated offset correction value (ec) of the second sine wave signal (C(3θr)) being added to the second sine wave signal (C(3θr)).


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    Titel :

    角度检测装置、以及使用了该角度检测装置的电动助力转向装置


    Erscheinungsdatum :

    2023-08-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge