Combined electronic ignition and alarm system

Details Combined electronic ignition and alarm system Combined electronic ignition and alarm system

1996-11-01

1998-12-01

Mullen, Thomas

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340428, 307 102, 307 105, 180287, B60R 2510

Patent

active

058444696

ABSTRACT:
An electronic ignition and alarm system for motorcycles. An electronic circuit for reading a coded signal emitted by a code-generating integrated circuit inside the ignition key, can be connected inductively or by electric contact means to a microcontroller programmed to enabling the operation of the ignition circuit of the engine after identification of the coded-signal. The coded-signal reader and the microcontroller are fed by a power source comprising a capacitor for storing the energy supplied by the voltage generator of the ignition circuit of the motorcycle. The energy storage capacitor can be connected to the voltage generator via a first low-impedance circuit comprising an electronic trigger switch deactivated by a control circuit which controls the charging voltage of the energy storage capacitor upon start-up of the engine, before activation of the ignition circuit, or, respectively, via a high-impedance circuit which maintains the charging voltage of the capacitor to reduce current drainage of the voltage generator by the capacitor during running of the engine.

REFERENCES:
patent: 4274080 (1981-06-01), Brunken
patent: 4738334 (1988-04-01), Weishaupt
patent: 4858453 (1989-08-01), Namazue
patent: 5519376 (1996-05-01), Iijima
patent: 5606306 (1997-02-01), Mutoh et al.
patent: 5610574 (1997-03-01), Mutoh et al.
patent: 5616966 (1997-04-01), Fischer et al.
patent: 5635900 (1997-06-01), Hasegawa et al.
patent: 5659291 (1997-08-01), Kennedy et al.
patent: 5670933 (1997-09-01), Hayashi

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