Vehicle battery discharging indicator

Details Vehicle battery discharging indicator Vehicle battery discharging indicator

1986-12-22

1989-02-07

Salce, Patrick R.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 37, 320 39, H02J 716

Patent

active

048034177

ABSTRACT:
An apparatus for and method of indicating when the battery in a motor vehicle is discharging is disclosed in which the battery voltage during vehicle operation is monitored and compared to a stored value representing the open-circuit voltage of the battery measured prior to the vehicle engine being cranked for starting. An indication that the battery is discharging is provided only after a discharging condition, i.e., the battery voltage is less than the stored value, is detected at each of a predetermined member of consecutive timed intervals.

REFERENCES:
patent: 4180770 (1979-12-01), Eby
patent: 4229688 (1980-10-01), Knox et al.
patent: 4290109 (1981-09-01), Taniguchi et al.
patent: 4320334 (1982-03-01), Davis et al.
patent: 4423378 (1983-12-01), Marino et al.
patent: 4424477 (1984-01-01), Enoshima et al.
patent: 4451774 (1984-05-01), Akita et al.
patent: 4527112 (1985-07-01), Herman
patent: 4665370 (1987-05-01), Holland

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