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. 11, 2015
Filed:
Jul. 31, 2013
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Seung Bum Kim, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
A system and method for diagnosing failure of a thermostat that includes a controller configured to measure a coolant temperature and a coolant model temperature and determine a temperature of engine oil, when the coolant temperature is greater than a first reference temperature and the coolant model temperature is equal to or less than a second reference temperature. In addition, the controller is configured to determine an open status or a close status of the thermostat and diagnoses whether there is a failure in the open status of the thermostat, using the temperature of the engine oil as an independent variable.