Method and apparatus for conserving battery power in a snowmobil

Details Method and apparatus for conserving battery power in a snowmobil Method and apparatus for conserving battery power in a snowmobil

1991-07-24

1992-09-29

Wolfe, Willis R.

Internal-combustion engines

High tension ignition system

Safety device

123198DC, 123644, 307 107, F02P 1100

Patent

active

RE0340790

ABSTRACT:
A snowmobile electrical system having a battery conservation circuit. The system is designed to conserve battery power after deactivation of the engine using the kill switch, even if the key switch is left on. Battery power is normally consumed by continued connection of the microprocessor-based electronic engine control unit (ECU) to the battery after kill switch activation. To prevent battery consumption, the ECU monitors the electrical output of the ignition system at a position within the system wherein the output is dependent on engine speed. If the output drops to a specified level, a signal generator in the ECU is activated. Signals from the signal generator are directed to a solid state switching system which disconnects the battery from the ECU. As a result, battery consumption is controlled.

REFERENCES:
patent: 3395288 (1968-07-01), Brimer
patent: 3924595 (1975-12-01), Brungsberg
patent: 4213513 (1980-07-01), Beck
patent: 4218717 (1980-08-01), Shuster
patent: 4438752 (1984-03-01), Cheung
patent: 4581571 (1986-04-01), Hansen
patent: 4699109 (1987-10-01), Hensel
patent: 4812677 (1989-03-01), Perry
patent: 4893605 (1990-01-01), Ozawa
patent: 4917061 (1990-04-01), Nagakura

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