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. 26, 2014
Filed:
Oct. 07, 2011
Daniel A. Bialas, Ann Arbor, MI (US);
Stephen Paul Levijoki, Swartz Creek, MI (US);
John W. Siekkinen, Novi, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Michele Bilancia, Turin, IT;
Morena Bruno, Chivasso, IT;
Daniel A. Bialas, Ann Arbor, MI (US);
Stephen Paul Levijoki, Swartz Creek, MI (US);
John W. Siekkinen, Novi, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Michele Bilancia, Turin, IT;
Morena Bruno, Chivasso, IT;
Abstract
A system includes a pump control module and a pump diagnostic module. The pump control module switches a switchable water pump from off to on. The pump diagnostic module diagnoses a fault in the switchable water pump based on a first difference between an engine material temperature and an engine coolant temperature when the switchable water pump is switched from off to on. The engine coolant temperature is a temperature of coolant circulated through an engine and the engine material temperature is a temperature of at least one of an engine block and a cylinder head.