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:
Oct. 27, 2015
Filed:
Jul. 30, 2012
Brian P. Lemon, Plymouth, MI (US);
Scott M. Skelton, Belleville, MI (US);
Brian P. Lemon, Plymouth, MI (US);
Scott M. Skelton, Belleville, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
Methods and electric vehicle diagnostic systems are provided for diagnosing performance of an active cooling system for cooling a rechargeable energy storage system (RESS) with a coolant. In one embodiment, a method includes determining, via a controller, whether the coolant temperature (T) is less than the ambient temperature plus a first calibrated value (T+V). The method also includes determining, via a controller, whether the coolant temperature (T) is less than the RESS temperature plus a second calibrated value (T+V). When the coolant temperature is less than the ambient temperature plus the first calibrated value and less than the RESS temperature plus the second calibrated value, the method provides for recording a diagnostic pass.