Automatic power interrupting system for vehicular control circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 1991
Grant Date -
N/A
app pub date -
Oct 26, 1990
filing date -
Dec 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic power interrupting system for a vehicular control circuit including a relay switch having a contact connected between a power source and the supply terminal of a control circuit and a relay coil connected with the power source, a control switch connected between the power source and the supply terminal and with the signal input terminal of the control circuit and turned on only by an external force, a revolution detector for detecting engine revolutions and a switching device for turning the relay switch on when power is supplied to the circuit and off after a predetermined time period measured after stop of the engine based on a signal from the revolution detector. A second embodiment includes a kill switch connected together with an ignition circuit and a power source, a relay switch having a contact connected between the power source and the supply terminal of the control circuit and a relay coil connected between the power source and the signal output terminal of the control circuit, a starter switch connected with a starter between the power source and the supply terminal and with the signal input terminal of the control circuit, a revolution detector for detecting engine revolutions and a switch for turning the relay switch on when the power is supplied to the circuit and off after a predetermined time period measured after stop of the engine based on a signal from the revolution detector.
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