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:
Feb. 01, 2005
Filed:
Sep. 12, 2003
Philip Allen Karau, Grand Blanc, MI (US);
Michael Edward Baker, Grand Blanc, MI (US);
Mahfuzur Rahman, Belleville, MI (US);
Gerard Wladyslaw Malaczynski, Bloomfield Hills, MI (US);
Philip Allen Karau, Grand Blanc, MI (US);
Michael Edward Baker, Grand Blanc, MI (US);
Mahfuzur Rahman, Belleville, MI (US);
Gerard Wladyslaw Malaczynski, Bloomfield Hills, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method and control system that directly determines combustion quality by measuring an ionization signal of each combustion event during initial engine operation is shown. The determined combustion quality is used to optimize engine performance for emissions and driveability by compensating various engine control parameters during initial engine operation, including starting. Compensation of engine control parameters may include changes to fuel delivery, spark ignition timing, and engine load. Any compensation of the engine control acts to ensure that a sufficient quantity of vaporized fuel is delivered to the engine to effectively start and operate the engine at the load level demanded by the engine, engine loads, and the operator.