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. 21, 2017
Filed:
Sep. 24, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 11/18 (2006.01); F01P 11/14 (2006.01); F04B 51/00 (2006.01); G01F 15/00 (2006.01);
U.S. Cl.
CPC ...
F01P 11/18 (2013.01); F01P 11/14 (2013.01); F04B 51/00 (2013.01); G01F 15/005 (2013.01);
Abstract
A pump current module determines a first current flowing through an electric engine coolant pump based on a coolant valve position. A current error module receives a second current flowing through the electric engine coolant pump measured using a current sensor and determines a current error based on a difference between the first current and the second current. A fault module indicates whether a fault is present based on the current error.