Anti-theft ignition control apparatus

Details Anti-theft ignition control apparatus Anti-theft ignition control apparatus

1992-04-22

1993-06-29

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

180287, F02B 7700

Patent

active

052224686

ABSTRACT:
An ignition apparatus for an engine includes an ignition switch and a monitor switch connected to a battery. A power supply circuit generates a reset signal for a microcomputer in response to closing of the ignition switch. A monitor signal generating circuit generates a monitor signal for the microcomputer in response to closing of the monitor switch. The microcomputer enables ignition to take place only if the monitor signal has a prescribed value when the reset signal is generated. The timing of the reset signal and the timing of the monitor signal are chosen so that the microcomputer will enable ignition only if the ignition switch and the monitor switch are closed substantially simultaneously and will prevent ignition when the switches are closed sequentially, such as when the switches are hot-wired.

REFERENCES:
patent: 4842093 (1989-06-01), Lerche et al.

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