Safety interlock for a motor vehicle engine starting circuitry
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United States of America Patent
Stats
-
Sep 2, 1986
Grant Date -
N/A
app pub date -
Nov 16, 1984
filing date -
Nov 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speed-limiting device of the electronic ignition type for the internal combustion engine of a motor vehicle is equipped with an AC generator driven to rotation by the engine, such a generator comprising a feeding coil for the electronic ignition circuitry and a pickup winding for controlling the sparking of the engine spark plugs is characterized in that the signal of said control of the sparking for the igniting spark is cut off by short-circuiting to ground the pickup winding via a diode which is governed by the voltage generated by said feeding coil of the ignition circuitry, a voltage which is appropriately processed by a specially provided electric circuitry so as to become proportional to the generator speed as the voltage in question overtakes a threshold magnitude as preset by a specially provided sensing member.
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