Fuel cell system with a scavenging device and AC impedance...

Details Fuel cell system with a scavenging device and AC impedance... Fuel cell system with a scavenging device and AC impedance...

2008-04-23

2011-11-08

Prasad, Chandrika (Department: 2839)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for control of operation

C429S444000

Reexamination Certificate

active

08053123

ABSTRACT:
A fuel cell system includes: an AC impedance measuring unit which measures an AC impedance of a fuel cell at a scavenging start and which measures an AC impedance of the fuel cell at a time when a predetermined time has elapsed from the scavenging start; a scavenging execution time estimation unit which estimates a scavenging execution time based on the AC impedance measured at the scavenging start, the AC impedance measured at the time when the predetermined time has elapsed from the scavenging start, and the predetermined time; and an error processing unit which forcibly terminates scavenging processing if a fuel cell voltage becomes lower than a predetermined threshold value during a period from the scavenging start to the time when the predetermined time has elapsed from the scavenging start.

REFERENCES:
patent: 2005/0170228 (2005-08-01), Tajiri et al.
patent: 2006/0222924 (2006-10-01), Matsuoka
patent: 2010/0081022 (2010-04-01), Imamura et al.
patent: 2010/0112398 (2010-05-01), Imamura et al.
patent: 2010/0119898 (2010-05-01), Imai
patent: 07-235324 (1995-09-01), None
patent: 2002-246053 (2002-08-01), None
patent: 2003-086220 (2003-03-01), None
patent: 2004-179086 (2004-06-01), None
patent: 2005-141940 (2005-06-01), None
patent: 2005-209634 (2005-08-01), None
patent: 2005-251576 (2005-09-01), None
patent: 2006-019184 (2006-01-01), None
patent: 2006-107901 (2006-04-01), None
patent: 2006-202520 (2006-08-01), None
patent: 2006-324066 (2006-11-01), None
patent: 2007-157621 (2007-06-01), None
patent: 2007-305346 (2007-11-01), None
patent: 2008-045527 (2008-02-01), None
patent: 2008-103257 (2008-05-01), None
patent: 2008-108434 (2008-05-01), None
patent: 2008-166018 (2008-07-01), None

Affiliated with

Also associated with

Rating

Fuel cell system with a scavenging device and AC impedance... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel cell system with a scavenging device and AC impedance..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell system with a scavenging device and AC impedance... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4289198