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:
Sep. 30, 2014
Filed:
Nov. 02, 2011
Dan Nagashima, Dublin, OH (US);
Dan Nagashima, Dublin, OH (US);
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
Methods and systems for monitoring engine coolant temperature sensors are described. In one embodiment, an expected engine coolant temperature may be determined based on the accumulated engine mass air flow. If the current engine coolant temperature is substantially different from the expected temperature, then an error signal may be generated. In one embodiment, the expected engine coolant temperature is compared to the actual engine coolant temperature if the engine coolant temperature has changed by a predetermined amount. In one embodiment, the expected engine coolant temperature is compared to the actual engine coolant temperature if the accumulated engine mass air flow is equal to or is greater than a predetermined value.