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:
Apr. 03, 2018
Filed:
Dec. 05, 2015
Hyundai Motor Company, Seoul, KR;
Ik Jae Son, Gyeonggi-Do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A control method of an operation pressure of a fuel cell system maintains a differential pressure between a hydrogen side and an air side of a fuel cell stack to minimize a crossover amount of hydrogen while allowing hydrogen purge and reduces an exhausted hydrogen amount when a purge valve is opened at the time of purging hydrogen using a differential pressure of an anode outlet and a cathode outlet to improve a hydrogen utilization rate and system efficiency. According to the control method, pressures of a cathode inlet and a cathode outlet of the fuel cell stack and a pressure of an anode outlet are controlled such that the pressure of the anode outlet of the fuel cell stack is lower than the pressure of the cathode inlet and higher than the pressure of the cathode outlet.