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:
Aug. 27, 2013
Filed:
Jun. 07, 2010
Jae Won Jung, Gyeonggi-do, KR;
Nam Woo Lee, Gyeonggi-do, KR;
Jae Jun Ko, Gyeonggi-do, KR;
Sang Uk Kwon, Gyeonggi-do, KR;
Sun Heum Baek, Gyeonggi-do, KR;
Sun Soon Park, Gyeonggi-do, KR;
Jae Won Jung, Gyeonggi-do, KR;
Nam Woo Lee, Gyeonggi-do, KR;
Jae Jun Ko, Gyeonggi-do, KR;
Sang Uk Kwon, Gyeonggi-do, KR;
Sun Heum Baek, Gyeonggi-do, KR;
Sun Soon Park, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
Disclosed is a method for detecting ice blocking of a fuel cell stack. In particular, the method includes periodically calculating a minimum cell voltage of a fuel cell stack from cell voltages measured by a cell voltage monitoring system while reactant gases are supplied to the fuel cell stack and then calculating a change in the minimum cell voltage using a currently calculated minimum cell voltage and a previous minimum cell voltage. It is then determined whether the change in the minimum cell voltage is above a predetermined reference value. When the change in the minimum cell voltage is above the reference value, it is determined that the ice blocking has occurred or is occurring in an anode of the fuel cell stack.