To solve a problem that the accuracy of angle detection deteriorates owing to noise voltage generated by eccentricity or variation in shape among rotors according to the number of magnetic poles of a rotor core of a multiple-system rotation sensor, the number S of magnetic poles of a stator core is, with the number R of the magnetic poles of the rotor core and the number N (N is a natural number equal to or larger than 2) of systems for stator windings, in a relationship of S=nRN (n is a natural number), system windings of each system are wound so as to be divided for every R magnetic poles among the S magnetic poles of the stator core, and a winding arrangement of the system windings of each system is made so as to achieve R-times rotational symmetry about a rotor rotation axis.


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    Title :

    Multiple-system rotation sensor, and electric power steering device provided with multiple-system rotation sensor


    Contributors:

    Publication date :

    2024-11-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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