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. 27, 2007
Filed:
Dec. 19, 2002
Hiroshi Sugiura, Chigasaki, JP;
Tetsuhiro Ishikawa, Aichi-ken, JP;
Shoichi Sasaki, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An electric vehicleincludes a power supply apparatus. The power supply apparatusincludes a fuel cell system, capacitorand secondary batterythat are connected in parallel to wiring. When a drive motor is performing regeneration, the capacitoris collecting the regenerated electric power. The fuel cell systemgenerates electric power in accordance with the load demand. The switchesbetween the fuel cell and the wiring are closed when the load becomes small and the regenerated voltage attains a predetermined level. As a result, the generation of electric power by the fuel cell system is suspended under low-load conditions where the energy efficiency of the fuel cell systemis low.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile