Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Involving measuring – analyzing – or testing during synthesis
Reexamination Certificate
2006-07-25
2006-07-25
Bell, Bruce F. (Department: 1746)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Involving measuring, analyzing, or testing during synthesis
C205S335000, C204S401000, C204S406000, C429S006000, C429S010000, C429S010000, C361S088000, C324S522000, C324S525000
Reexamination Certificate
active
07081193
ABSTRACT:
A system for detecting an isolation fault in a multi-stack fuel cell system. The system determines the percentage of the voltage from each stack in the multi-stack that contributes to the voltage at a positive terminal and a negative terminal of the stack when a no-fault condition exists. The system then uses those percentages and the actual measured stack voltages to determine if a fault condition exists. The actual voltage measurement at the positive terminal is compared to the calculated voltage contribution from each stack at the positive terminal for the no-fault condition. Also, the actual voltage measurement at the negative terminal is compared to the calculated voltage contribution from each, stack at the negative terminal for the no-fault condition. If there is a significant enough different between the calculated voltage for a no-fault condition and the calculated percentage of the actual voltage measurements, than a fault condition exists.
REFERENCES:
patent: 4871956 (1989-10-01), Barrella
patent: 6764782 (2004-07-01), Raiser et al.
Dewey Scott
Wheat John
Bell Bruce F.
Brooks Cary W.
General Motors Corporation
LandOfFree
Multi-stack isolation detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-stack isolation detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-stack isolation detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3527413