The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2004
Filed:
Jul. 25, 2002
Katsuhiko Kusumoto, Tokyo, JP;
Noriyuki Wada, Tokyo, JP;
Masakazu Nakayama, Tokyo, JP;
Shinji Nishimura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control apparatus and a control method of an on-vehicle dynamo-electric machine are provided for efficiently controlling functions as a starter-motor and as a charging generator. In case that the dynamo-electric machine acts as a charging generator, when a rotation speed of the dynamo-electric machine is not higher than a predetermined value, a power is generated by applying a compensation current from and inverter to an armature coil for phase control. On the other hand, when a rotation speed of the dynamo-electric machine is not lower than a predetermined value, operation of the inverter is stopped. Thus, controlling a current applied to a field coil by a field coil current control means generates a predetermined target voltage.