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:
Aug. 02, 2016
Filed:
Jun. 14, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Xinyu Du, Oakland Township, MI (US);
Atul Nagose, Royal Oak, MI (US);
Yilu Zhang, Northville, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/05 (2006.01); F02N 11/10 (2006.01); G01M 15/04 (2006.01); G01K 13/00 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
F02N 11/108 (2013.01); G01K 13/00 (2013.01); G01M 15/042 (2013.01); G01M 15/048 (2013.01); G01R 31/3606 (2013.01); F02N 2200/045 (2013.01); G01K 2205/00 (2013.01);
Abstract
An internal combustion engine employs a starting system. A method for evaluating the starting system includes determining a cranking resistance ratio between a starter and a battery of the starting system during engine cranking. The cranking resistance ratio is normalized based upon an operating temperature of the starting system, and the starting system is evaluated based upon the normalized cranking resistance ratio.