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:
Mar. 24, 2015
Filed:
Mar. 22, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Douglas Raymond Martin, Canton, MI (US);
Ted Haladyna, Northville, MI (US);
Kenneth James Miller, Canton, MI (US);
Scott James Thompson, Waterford, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 9/00 (2006.01); B60W 10/04 (2006.01); F02B 17/00 (2006.01); F02D 29/02 (2006.01);
U.S. Cl.
CPC ...
F02D 29/02 (2013.01); Y10S 903/903 (2013.01);
Abstract
Methods and systems are provided for extending an engine-off period of a hybrid vehicle while reducing engine cold-start emissions. During an engine pull-up to meet operator demand, the engine is held at a higher power for a longer duration to aggressively heat the exhaust catalyst. Subsequently, the engine is pulled up to a lower power and held at the lower power for shorter bursts of time to activate the exhaust catalyst.