Motor vehicle battery discharge current control

Details Motor vehicle battery discharge current control Motor vehicle battery discharge current control

1990-12-11

1992-08-25

Pellinen, A. D.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 101, 307595, 3071414, H02H 718

Patent

active

051421623

ABSTRACT:
A battery discharge load current control system for a motor vehicle electrical system which can disconnect the battery from an electrical load to prevent over-discharge of the battery. The electrical load can be a so-called parasitic load which is of the type that is normally permanently connected to the battery. The electrical load is disconnected from the battery after the elapse of certain time periods. The system has a means for counting ignition cycles and after a certain count is attained, it is considered that the motor vehicle has been delivered to a purchasing customer. Prior to attaining the count, the time period is controlled to be about 1 or 2 days. After the count is attained, the time period is increased to be about 20 to 30 days.

REFERENCES:
patent: 4218717 (1980-08-01), Shuster
patent: 4276483 (1981-06-01), Hayden
patent: 4301390 (1981-11-01), Earle
patent: 4493001 (1985-01-01), Sheldrake
patent: 4733100 (1988-03-01), Nusairat et al.
patent: 4864154 (1989-09-01), Copeland et al.

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