Vehicle antitheft system

Details Vehicle antitheft system Vehicle antitheft system

1995-09-06

1997-02-04

Rice, Kenneth R.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

By preventing unauthorized or unintended access or use

B60R 2500

Patent

active

055988989

ABSTRACT:
A vehicle antitheft system comprising an ID code compare unit for comparing a key ID code obtained from an ignition key with a reference ID code stored in advance in the vehicle and generating an enable signal when these ID codes are in a preset relationship (for example, both codes are identical), an engine ECU for receiving the enable signal and enabling control of the engine when the enable signal is correct and a delay times that is started in response to generation of the enable signal and generates a signal which enables starting of the motor starter after the lapse of a preset time period following the generation of the enable signal (for example, at least period necessary for the engine ECU to store or identify the enable signal).

REFERENCES:
patent: 4291237 (1981-09-01), Kitano
patent: 4366466 (1982-12-01), Lutz
patent: 4835407 (1989-05-01), Kataoka et al.
patent: 4965460 (1990-10-01), Tanaka et al.
patent: 4996514 (1991-02-01), Sunami
patent: 5043593 (1991-08-01), Tsutsumi et al.
patent: 5079435 (1992-01-01), Tanaka
patent: 5229648 (1993-07-01), Sues et al.
patent: 5491470 (1996-02-01), Veligdan

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