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:
Mar. 30, 2010
Filed:
Jun. 22, 2006
Hichirosai Oyobe, Toyota, JP;
Tetsuhiro Ishikawa, Nishikamo-gun, JP;
Yukihiro Minezawa, Anjo, JP;
Shigenori Togashi, Sagamihara, JP;
Hichirosai Oyobe, Toyota, JP;
Tetsuhiro Ishikawa, Nishikamo-gun, JP;
Yukihiro Minezawa, Anjo, JP;
Shigenori Togashi, Sagamihara, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A first inverter control unit includes a harmonic generation unit. The harmonic generation unit generates a harmonic voltage instruction having a phase opposite to a harmonic generated at a neutral point of a motor-generator when the motor-generator revolves, based on motor revolution number of the motor-generator. A PWM signal generation unit generates a signal based on a voltage instruction obtained by superimposing an AC voltage instruction from an AC output control unit and the harmonic voltage instruction from the harmonic generation unit onto each voltage instruction of U-phase, V-phase and W-phase from a conversion unit.