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:
Sep. 22, 2009
Filed:
Dec. 22, 2005
David Bidner, Livonia, MI (US);
Rodney Lopez, Dearborn, MI (US);
Jeff Doering, Canton, MI (US);
Scott Manning, Boston, MA (US);
David Bidner, Livonia, MI (US);
Rodney Lopez, Dearborn, MI (US);
Jeff Doering, Canton, MI (US);
Scott Manning, Boston, MA (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method of controlling fuel injection in an engine of a vehicle having an all wheel drive or 4×4 system comprises restricting deactivation of the fuel injection during some deceleration conditions when the vehicle is in an all wheel drive, or 4×4, low gear. According to another aspect, a method comprises restricting deactivation of fuel injection during deceleration operations under all wheel drive, or 4×4 low gear operation; and disabling the fuel injection during at least some deceleration operation under other conditions. Disabling deactivation in an all wheel drive or 4×4 low gear allows a more controlled drivability at a time when any torque disturbance may be magnified and more easily felt by the vehicle driver.