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:
Nov. 15, 2011
Filed:
Jun. 16, 2009
Daniel Lawrence Meyer, Dearborn, MI (US);
Christopher Paul Glugla, Macomb, MI (US);
Mrdjan J. Jankovic, Birmingham, MI (US);
Davorin D. Hrovat, Ann Arbor, MI (US);
Daniel Lawrence Meyer, Dearborn, MI (US);
Christopher Paul Glugla, Macomb, MI (US);
Mrdjan J. Jankovic, Birmingham, MI (US);
Davorin D. Hrovat, Ann Arbor, MI (US);
Ford Global Technologies LLC, Dearborn, MI (US);
Abstract
Systems and methods for controlling an internal combustion engine include adjusting fuel delivered to a cylinder during a transient event by an amount indexed by number of combustion events after detecting the transient event. A base fueling parameter may be adjusted by an adaptive correction value indexed by combustion events after the transient event is detected, with the adaptive value determined using air/fuel ratio difference of previous combustion events during similar transient operating conditions associated with the same combustion event index number. Ionization sensor signal characteristics may be used to determine actual air/fuel ratios used to determine the air/fuel ratio difference and corresponding adaptive correction values. The adaptive values may be modified in response to a vehicle refueling event based on an amount of added fuel relative to existing fuel in the vehicle fuel tank.