Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1997-07-08
1999-11-16
Lefkowitz, Edward
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
3404255, 307 104, B60R 2500
Patent
active
059865423
ABSTRACT:
A method of providing vehicle security against theft involves entering a PIN by using one or more buttons of a preexisting electronic device of a vehicle (an electronic device conventionally found in a vehicle that has a function other than that of providing security against theft, such as a digital odometer, a radio, a compass/information unit, or the like). If the entered PIN does not match a stored PIN, starting of the engine is prevented. Illustratively, the PIN is input into a body controller of the vehicle that compares entered PIN against a stored PIN. If the entered PIN matches the stored PIN, the body controller sends a start enable signal to an engine controller of the vehicle. Upon receipt of the start enable signal from the body controller, the engine controller enables starting of the vehicle so that the vehicle will start when the ignition switch is turned. If the entered PIN does not match the stored PIN, the body controller sends a start disable signal to the engine controller and the engine controller then disables starting of the vehicle so that the vehicle is not allowed to start when the ignition switch is turned.
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Chrysler Corporation
Fuller III Roland A.
Lefkowitz Edward
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