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:
Jan. 19, 2021
Filed:
Nov. 27, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Ralph Cunningham, Milan, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 31/00 (2006.01); F02D 11/02 (2006.01); B60W 20/00 (2016.01); B60K 6/40 (2007.10); B60K 6/54 (2007.10); B60K 6/387 (2007.10); B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
F02D 31/001 (2013.01); B60W 20/00 (2013.01); F02D 11/02 (2013.01); B60H 1/00 (2013.01); B60K 6/387 (2013.01); B60K 6/40 (2013.01); B60K 6/54 (2013.01); B60W 2710/065 (2013.01); B60Y 2200/92 (2013.01); F02D 2200/602 (2013.01);
Abstract
Methods and systems are provided for improving fuel economy by opportunistically lowering engine idle speed below a base idle speed when electrical loads are not present. A hydraulic brake pressure is increased when the idle speed is raised, in anticipation of vehicle propulsion. The brake pressure counteracts any creep torque and unintended vehicle acceleration resulting from the rising engine idle speed.