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:
Oct. 27, 2009
Filed:
Jun. 12, 2006
Steve Magner, Farmington Hills, MI (US);
Xiaoying Zhang, Dearborn Heights, MI (US);
John Rollinger, Sterling Heights, MI (US);
Mrdjan Jankovic, Birmingham, MI (US);
Sue Wagers, Newport, MI (US);
Steve Magner, Farmington Hills, MI (US);
Xiaoying Zhang, Dearborn Heights, MI (US);
John Rollinger, Sterling Heights, MI (US);
Mrdjan Jankovic, Birmingham, MI (US);
Sue Wagers, Newport, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
An approach is provided for compensating engine fueling during starting conditions in which positive valve overlap is enabled early in the start. In one example, the valve timing is adjusted to increase positive overlap during cold starting conditions, and fuel adjustments are provided to compensate for the evaporation effects of the increased residual push-back.