Invention Grant
- Patent Title: Systems and methods for initiating voltage recovery in a fuel cell system
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Application No.: US14869467Application Date: 2015-09-29
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Publication No.: US09947950B2Publication Date: 2018-04-17
- Inventor: Srikanth Arisetty , Andrew J. Maslyn , Balasubramanian Lakshmanan
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Phillips Ryther & Winchester
- Agent John P. Davis
- Main IPC: H01M8/04701
- IPC: H01M8/04701 ; H01M8/04537 ; H01M8/0444 ; H01M8/04828

Abstract:
Systems and methods for initiating voltage recovery procedures in a fuel cell system based in part on an estimated specific activity over the life of a fuel cell catalyst are presented. In certain embodiments, SA loss of catalyst and electrochemical surface area loss of a FC system may be estimated. An output voltage of the FC system may be estimated based on the estimated SA loss and the electrochemical surface area loss. An amount of recoverable voltage loss may be determined based on a comparison between the estimated output voltage and a measured output voltage. Based on the determined amount of recordable voltage loss, a FC system control action (e.g., a voltage recovery procedure) may be initiated.
Public/Granted literature
- US20170092971A1 SYSTEMS AND METHODS FOR INITIATING VOLTAGE RECOVERY IN A FUEL CELL SYSTEM Public/Granted day:2017-03-30
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