Engine start control apparatus

Details Engine start control apparatus Engine start control apparatus

2008-07-08

2008-07-08

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406530, C123S179500

Reexamination Certificate

active

07395810

ABSTRACT:
Oil level detection sensor detects an oil level in a crankcase. First charging circuit includes a serial connection of a first charging capacitor for charging a reverse voltage produced in a primary coil, the detection sensor, and a first diode. Thyristor is turned on, in response to voltage-charging of the first charging capacitor, to disable an ignition operation of an ignition circuit. Second charging circuit includes a serial connection of a second charging capacitor for charging a forward voltage, produced in the primary coil, and a second diode. Transistor is turned on, in response to voltage-charging of the second charging capacitor, to disable a turning-on operation of the thyristor.

REFERENCES:
patent: 2222568 (1940-11-01), Newton
patent: 3554176 (1971-01-01), Melloni
patent: 4895120 (1990-01-01), Tobinaga et al.
patent: 4966115 (1990-10-01), Ito et al.
patent: 5195476 (1993-03-01), Schwarz
patent: 6148777 (2000-11-01), Motose et al.
patent: 03206357 (1991-09-01), None
patent: 8-247012 (1996-09-01), None

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