Systems and methods for diagnosing battery voltage...

Details Systems and methods for diagnosing battery voltage... Systems and methods for diagnosing battery voltage...

2008-06-19

2011-10-25

Nguyen, Tai T (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S456000, C340S569000, C340S686600, C340S636100, C340S514000, C320S116000, C320S118000, C320S119000, C320S120000, C320S126000, C320S149000, C320S162000

Reexamination Certificate

active

08044786

ABSTRACT:
Systems and methods for diagnosing battery voltage misreporting is described. According to various embodiments, battery voltage may be monitored with respect to a state of charge and/or time. Based on this monitored information, battery charge state data may be generated by computing time derivatives of the monitored battery voltage across a voltage range. This battery charge state data may be compared with an expected set of charge state data if substantial differences exist, an error may be generated. Other embodiments are described and claimed.

REFERENCES:
patent: 4388582 (1983-06-01), Saar et al.
patent: 4746852 (1988-05-01), Martin
patent: 6472879 (2002-10-01), Park
patent: 6841972 (2005-01-01), Koo
patent: 7439710 (2008-10-01), Ishishita
patent: 2004/0257049 (2004-12-01), Trinh et al.

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