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.

Date of Patent:
Mar. 15, 2016

Filed:

Jan. 31, 2013
Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Ravi Atluru, Westland, MI (US);

Chuck De Biasi, Plymouth, MI (US);

Xiangying Liu, Ann Arbor, MI (US);

Zeljko Deljevic, Plymouth, MI (US);

David Celinski, Wolverine Lake, MI (US);

David Anthony Symonow, Plymouth, MI (US);

Eric Michael Rademacher, Royal Oak, MI (US);

Kirk Pebley, Novi, MI (US);

Dave W. Linden, Ann Arbor, MI (US);

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 9/00 (2006.01); F02D 35/00 (2006.01); F02N 11/08 (2006.01);
U.S. Cl.
CPC ...
F02D 35/0007 (2013.01); F02N 11/0825 (2013.01); F02N 2200/023 (2013.01); F02N 2200/044 (2013.01); F02N 2200/046 (2013.01); F02N 2200/061 (2013.01); F02N 2200/063 (2013.01); Y02T 10/48 (2013.01);
Abstract

A method for maximizing the availability of start-stop operations within a microhybrid vehicle includes determining the electric current drawn by a set of electrical components of the vehicle, from the vehicle's battery. The internal resistance of the vehicle's battery, and the resistance of a starter motor loop circuit coupled to the engine of the vehicle are dynamically calculated. The closed-circuit voltage of the battery is predicted, using the internal resistance of the battery, the resistance of the starter motor loop circuit, and the current drawn by the set of electrical components of the vehicle. The start-stop operation is carried out if the closed-circuit voltage of the battery is predicted to be above a pre-determined minimum value.


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