Vehicle security system

Details Vehicle security system Vehicle security system

1993-03-09

1996-07-23

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

3404255, 340430, 307 102, 307 103, 307 106, B60R 2510

Patent

active

055393772

ABSTRACT:
Vehicle security protection system provides anti-theft security system for the voluntary vehicle vacate situation, regardless of whether the engine is running. When a thief trips the armed system, the engine ignition circuit is instantaneously and continuously broken at the vehicle's engine ignition module. The system is difficult to hot-wire or to reset. An anti-hijack security protection system is also provided which can interface with the anti-theft system. Either system can be "armed" regardless of engine status. However, the user must be in the vehicle before arming the anti-hijack system because the door/courtesy light circuit is used as the trigger circuit for engine kill. A time delay is provided in the anti-hijack mode to cause the thief to commit to public actions and to give the owner time to escape from the hijack scene. In either mode, when the system is tripped, the fuel gauge indicates an empty tank condition.

REFERENCES:
patent: 4107543 (1978-08-01), Kaplan
patent: 4792792 (1988-12-01), Costino
patent: 4887064 (1989-12-01), Drori et al.
patent: 5172094 (1992-12-01), Stadler

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