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. 21, 2003
Filed:
Feb. 27, 2001
Applicant:
Inventor:
Katsuya Kobayashi, Tokyo, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 ; H01M 8/06 ;
U.S. Cl.
CPC ...
H01M 8/04 ; H01M 8/06 ;
Abstract
A fuel cell system provided with a secondary battery supplying electric power to an outer load and a fuel cell supplying power at least to the secondary battery is controlled such that, by calculating charge allowance amount level in the secondary battery and calculating an excess amount of electric power that can be generated by an excess amount of fuel gas produced in the fuel cell system when operation of the fuel cell is stopped, the charge allowance amount level in the secondary battery is equal to or higher than the excess amount of electric power.