The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1996
Filed:
Jan. 26, 1995
Jan S Pyko, Bloomfield Twp., MI (US);
Anson Lee, St. Clair, MI (US);
Chrysler Corporation, Highland Park, MI (US);
Abstract
In an engine and associated ignition energy and breakdown voltage circuit, the engine having at least one spark plug and an associated ignition coil having a primary and secondary winding, the secondary winding in communication with at least one spark plug. The ignition energy and breakdown voltage circuit comprising the ability to sense an arcing current generated by the spark plug, and also includes the ability for probing a spark plug breakdown voltage. A multiplier is provided for multiplying the spark plug arcing current by the arcing voltage and thereby producing a power signal. The ability to store the breakdown voltage of the spark plug for a period of time is provided, and further the ability to produce an energy signal in proportional representation of an amount of energy delivered to the spark plug. A method is also provided for adaptively changing spark plug energy in response to feedback from the ignition energy circuit.