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.

Date of Patent:
Aug. 09, 2011

Filed:

Jul. 31, 2008
Applicants:

Takeshi Fujino, Wako, JP;

Mitsuaki Hirakawa, Wako, JP;

Minoru Noguchi, Wako, JP;

Eisuke Komazawa, Wako, JP;

Inventors:

Takeshi Fujino, Wako, JP;

Mitsuaki Hirakawa, Wako, JP;

Minoru Noguchi, Wako, JP;

Eisuke Komazawa, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power supply device for vehicles, output units () thereof are connected to a motor (), includes a fuel cell () which is connected to the output units (), a capacitor () which is connected in parallel to the fuel cell (), a lithium ion battery () which is connected in parallel to the capacitor () through a DC/DC converter (), and a current control means () which limits an output current of the lithium ion battery () to at most an output upper-limit current (Ibout_lmt) when power is supplied to the motor () from the lithium ion battery () during a power running operation of the motor (), and limits an input current into the lithium ion battery () to at most an input upper-limit current smaller than the output upper-limit current (Ibin_lmt) through the DC/DC converter () when regenerative power of the motor () is recovered into the lithium ion battery () during a regenerative operation of the motor ().


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