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:
Nov. 06, 2018
Filed:
Sep. 13, 2016
Caterpillar Inc., Peoria, IL (US);
Jeffrey Joseph Speichinger, Peoria, IL (US);
Caterpillar Inc., Deerfield, IL (US);
Abstract
A method for thermostat failure detection in an engine cooling system is provided. The engine cooling system includes a coolant pump and a thermostat for providing a coolant flow between an engine and a radiator. The method includes determining one or more engine parameters. Further, a pressure difference between a coolant pump inlet pressure and a coolant pump outlet pressure is determined corresponding to the one or more engine parameters. The thermostat failure is detected when the determined pressure difference is outside a predefined range of pressure change defined corresponding to the determined one or more engine parameters.