Ignition controlled starting motor interlock circuit

Details Ignition controlled starting motor interlock circuit Ignition controlled starting motor interlock circuit

1990-08-06

1992-03-10

Dolinar, Andrew M.

Internal-combustion engines

Starting device

Auxiliary fuel supply device

290 38R, F02N 1110

Patent

active

050941992

ABSTRACT:
Apparatus for causing a starting motor interlock switch to be activated when the vehicle engine ignition is running, the vehicle having an electrical battery associated with the engine, and the running of the engine causing impulse signals to appear at an inductively coupled sensing element. The apparatus has an electrical circuit which converts the incoming impulses to a DC signal indicating an engine running condition. The invention senses when the ignition circuit of an engine has operated in excess of a predetermined time interval. Having sensed such operation, the unit latches into a position which open-circuits a relay (interlock) thereby causing the starting motor system of the vehicle to become disabled. When the ignition source shuts off, the unit latches into a position which re-enables the starting motor circuit after a predetermined time interval.

REFERENCES:
patent: 3053243 (1962-09-01), Domann
patent: 3530846 (1970-09-01), Bean et al.
patent: 3712283 (1973-01-01), Kiess et al.
patent: 4070585 (1978-01-01), Parkyn
patent: 4104534 (1978-08-01), Hill et al.
patent: 4549089 (1985-10-01), Buetemeister et al.

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