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. 14, 2014
Filed:
Jul. 18, 2011
Sang Uk Kwon, Gyeonggi-do, KR;
Nam Woo Lee, Gyeonggi-do, KR;
Kyu IL Lee, Gyeonggi-do, KR;
Soon IL Jeon, Gyeonggi-do, KR;
Seong Pil Ryu, Gyeonggi-do, KR;
Jung Hwan Ryu, Seoul, KR;
Sang Uk Kwon, Gyeonggi-do, KR;
Nam Woo Lee, Gyeonggi-do, KR;
Kyu Il Lee, Gyeonggi-do, KR;
Soon Il Jeon, Gyeonggi-do, KR;
Seong Pil Ryu, Gyeonggi-do, KR;
Jung Hwan Ryu, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
The present invention provides a hybrid fuel cell system that is configured to determine if an idle stop condition has been satisfied during a normal operation mode of the hybrid fuel cell system, cut off air supply to a fuel cell to stop power generation of the fuel cell and reduce a voltage which the fuel cell outputs in response to determining that the idle stop condition has been satisfied. The voltage of a bidirectional converter, connected between a battery and a bus terminal is reduced and the output of the fuel cell is controlled, based on a first predetermined value and maintained at that first predetermined value. Subsequently, the battery is charged via the output current of the fuel cell generated by maintaining the reduced voltage of the bidirectional converter.