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:
Nov. 29, 2016
Filed:
Jan. 30, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Youssef A. Ghoneim, Rochester, MI (US);
Mark N. Howell, Rochester Hills, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 11/08 (2006.01); F02N 11/10 (2006.01);
U.S. Cl.
CPC ...
F02N 11/0825 (2013.01); F02N 11/108 (2013.01); F02N 11/087 (2013.01); F02N 11/0814 (2013.01); F02N 2200/022 (2013.01); F02N 2200/04 (2013.01); F02N 2200/043 (2013.01); F02N 2200/044 (2013.01); F02N 2200/062 (2013.01); F02N 2200/063 (2013.01); F02N 2200/064 (2013.01); F02N 2200/0801 (2013.01);
Abstract
A method for monitoring the starter motor includes determining starter motor resistance associated with an engine starting event and determining a back-emf for the starter motor based upon the starter motor resistance. A state of health of the starter motor corresponding to the back-emf of the starter motor and engine cranking time is determined. Engine stop/start functionality is controlled based upon the state of health of the starter motor.