| US 7,586,304 B2 | ||
| Stator position measuring method and measuring device | ||
| Shingo Hashimoto, Anjo (Japan); Yoshihisa Yamada, Anjo (Japan); Takeshi Tomita, Anjo (Japan); Takao Taniguchi, Anjo (Japan); and Shigeharu Ikeda, Anjo (Japan) | ||
| Assigned to Aisin AW Co., Ltd., Anjo (Japan) | ||
| Filed on Dec. 08, 2006, as Appl. No. 11/635,621. | ||
| Claims priority of application No. 2005-356436 (JP), filed on Dec. 09, 2005; application No. 2005-356438 (JP), filed on Dec. 09, 2005; and application No. 2005-356443 (JP), filed on Dec. 09, 2005. | ||
| Prior Publication US 2007/0130753 A1, Jun. 14, 2007 | ||
| Int. Cl. G01B 7/14 (2006.01) | ||
| U.S. Cl. 324—207.26 [318/653] | 23 Claims |
| 1. A stator position measuring method relating to a motor driving device comprising a motor case, a rotor, and a stator disposed
on an outer periphery of the rotor concentrically with the rotor, comprising:
measuring a position of the stator relative to an axial center of the rotor,
wherein the position of the stator is determined in a rotor not-inserted state, in which the stator is housed inside the motor
case and the rotor is not inserted in the stator, by measuring a position of a radial surface of a stator core, which includes
a magnetic body or a conductor forming the stator, relative to the axial center of the rotor using a non-contact displacement
sensor that is selectively sensitive to the magnetic body or the conductor.
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