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:
Jul. 26, 2005
Filed:
Oct. 03, 2001
Applicants:
Hiroshi Sugiura, Kariya, JP;
Tetsuhiro Ishikawa, Aichi-ken, JP;
Nobuo Watanabe, Toyota, JP;
Kouta Manabe, Gold River, CA (US);
Inventors:
Hiroshi Sugiura, Kariya, JP;
Tetsuhiro Ishikawa, Aichi-ken, JP;
Nobuo Watanabe, Toyota, JP;
Kouta Manabe, Gold River, CA (US);
Assignee:
Toyoda Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
B60K006/00 ;
U.S. Cl.
CPC ...
Abstract
A power supply system includes a fuel cell and a battery connected in parallel. A DC-DC converter is connected to the battery. A maximum output ratio of the fuel cell and the battery is set to be in a range where the output of the fuel cell is within 65 to 80% of the total output. Accordingly, electric power loss owing to conversion performed by the DC-DC converter is reduced to achieve a high energy efficiency.