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:
Oct. 18, 2005
Filed:
Jul. 28, 2003
Hideo Nakai, Nisshin, JP;
Hiroo Fuma, Gifu, JP;
Yukio Inaguma, Nagoya, JP;
Seiji Nakamura, Nagoya, JP;
Hideo Nakai, Nisshin, JP;
Hiroo Fuma, Gifu, JP;
Yukio Inaguma, Nagoya, JP;
Seiji Nakamura, Nagoya, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
Two inverters (INV, INV) supply phase currents to three-phase coils (Y, Y). Although two phase currents must conventionally be measured and four current sensors are thus required, according to the present invention, the number of phase currents to be measured is reduced as a result of use of an observer for phase current estimation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile