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. 14, 2015
Filed:
Jun. 26, 2012
Shigeto Kajiwara, Okazaki, JP;
Hiroaki Mori, Nagoya, JP;
Shigeto Kajiwara, Okazaki, JP;
Hiroaki Mori, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A fuel cell system () includes: a motor (); a fuel cell () and an electrical storage device () connected to the motor () in parallel with each other; a first voltage converter () between the motor () and the fuel cell (); a second voltage converter () between the motor () and the electrical storage device (); a load circuit between the motor () and both the first () and second () voltage converters; and a control unit (). The control unit () stops boost operation of the first voltage converter () when conditions VFC>VM_min and VFC>VBAT+a whereas the control unit () prohibits a stop of the boost operation of the first voltage converter () when the conditions are not satisfied, wherein in the conditions, VFC is a fuel cell terminal voltage, VBAT is an electrical storage device terminal voltage and VM_min is a load circuit input terminal voltage, set to minimize a system loss while ensuring a torque required of the motor ().