Auto-ignition detection method

Details Auto-ignition detection method Auto-ignition detection method

1993-11-08

1996-06-18

Dolinar, Andrew M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

73 3503, F02P 5152, G01L 2322

Patent

active

055267882

ABSTRACT:
An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling the performance of various engine diagnostic procedures. A controller provides a signal to an ignition circuit which causes the transformer to charge for ignition and subsequently charge for performing diagnostics. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of an electrical discharge across the spark plug electrodes as a result of one of the diagnostic charges. The detections circuit either outputs a signal to the controller or omits the signal to the controller. This allows the controller to diagnose conditions within the combustion cylinder.

REFERENCES:
patent: 4233943 (1980-11-01), Rogora et al.
patent: 4846129 (1989-07-01), Noble

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