MANUFACTURING METHOD OF ROTATION ANGLE DETECTION DEVICE, ROTATION ANGLE DETECTION DEVICE, MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotation angle detection device which can more accurately detect a rotation angle of a motor over the whole area without causing the complication of a manufacturing process. SOLUTION: Offset values ( :α1 to αn) in a plurality of detection...

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Bibliographische Detailangaben
Hauptverfasser:	TSUKAHARA KOSUKE, YAMAGUCHI SHIGETOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotation angle detection device which can more accurately detect a rotation angle of a motor over the whole area without causing the complication of a manufacturing process. SOLUTION: Offset values ( :α1 to αn) in a plurality of detection points (θ1 to θn) which are set over the whole area of a rotation angle θ detected by a motor resolver are operated on the basis of a d-axis voltage value and a q-axis voltage value which are detected by coordinate-converting three-phase induction voltage values generated in a motor which rotates in a non-loaded state. Then, correction data 35 over the whole area of the rotation angle θis generated by setting the offset values as correction values Δθ in the respective detection points, and stored (written) in (a non-volatile storage region 34 of) a memory 33. COPYRIGHT: (C)2011,JPO&INPIT