Internal-combustion engines – High tension ignition system – Having a specific ignition coil
Patent
1993-11-08
1995-01-03
Nelli, Raymond A.
Internal-combustion engines
High tension ignition system
Having a specific ignition coil
F02P 1100
Patent
active
053776526
ABSTRACT:
An ignition and engine control system for an internal combustion engine. The system includes a flyback ignition transformer which can rapidly re-fired a spark plug during a combustion cycle to perform various ignition diagnostic procedures using the spark plug as a feedback element of the control system. The transformer is adapted for mounting directly to a spark plug and includes a core about which a primary and secondary are toroidally wound. A controller provides signals to a circuit which causes maximum charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit which can detect the occurrence of an electrical discharge, and/or its duration, across the spark plug as a result of one of the diagnostic charges by monitoring the transformer for a reflected voltage in its primary. The detection circuit outputs a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder.
REFERENCES:
patent: 4617907 (1986-10-01), Johansson et al.
patent: 4774914 (1988-10-01), Ward
patent: 4841944 (1989-06-01), Maeda et al.
patent: 4846129 (1989-07-01), Noble
patent: 4903674 (1990-02-01), Bassett et al.
patent: 5003958 (1991-04-01), Yoneyama et al.
patent: 5038745 (1991-08-01), Krappel et al.
patent: 5111790 (1992-05-01), Grandy
patent: 5146906 (1992-09-01), Agatsuma
Ciuffetelli Mark
Kafka Leonard
Noble Gardiner A.
Calcaterra Mark P.
Chrysler Corporation
Nelli Raymond A.
LandOfFree
Ignition transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ignition transformer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ignition transformer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2204092