System for monitoring the current drawn from traction batteries

Details System for monitoring the current drawn from traction batteries System for monitoring the current drawn from traction batteries

1995-02-06

1996-10-29

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 13, 320 39, 320 31, H02J 704, H02J 700

Patent

active

055699995

ABSTRACT:
The invention relates to a battery current monitoring system for traction batteries in electric vehicles and hybrid vehicles, in which battery current monitoring system the maximum battery current is monitored in order to avoid damage to the battery as a result of overheating due to excessively high battery currents and, if appropriate, the said maximum battery current is reduced to a normal value which is permitted for continuous operation. Monitoring is activated if the battery current exceeds a prescribed limit value. The battery current is however not reduced until the battery temperature exceeds a prescribed limit value. It is also proposed not to use the measured average battery temperature as the control variable, but rather to use a reference temperature calculated on the basis of heat balances for individual reaction zones of the battery. The monitoring is terminated as soon as both the average and the calculated battery temperatures drop below a prescribed uncritical value.

REFERENCES:
patent: 4210855 (1980-07-01), Harer et al.
patent: 4255698 (1981-03-01), Simon
patent: 4301396 (1981-11-01), Bourke
patent: 4313080 (1982-01-01), Park
patent: 4394741 (1983-07-01), Lowndes
patent: 4558281 (1985-12-01), Codd et al.
patent: 4937528 (1990-06-01), Palanisamy
patent: 5164653 (1992-11-01), Reem
patent: 5264764 (1993-11-01), Kuang
patent: 5309080 (1994-05-01), Odendahl et al.
patent: 5343137 (1994-08-01), Kitaoka et al.
patent: 5374886 (1994-12-01), Kohl et al.
patent: 5394089 (1995-02-01), Clegg
patent: 5502365 (1996-03-01), Nanbu et al.
British Search Report in corresponding foreign application.

Affiliated with

Also associated with

Rating

System for monitoring the current drawn from traction batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for monitoring the current drawn from traction batteries , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for monitoring the current drawn from traction batteries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1788172