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:
Mar. 09, 1999
Filed:
Aug. 12, 1997
Satoru Taniguchi, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
An abnormality detecting apparatus for an air temperature sensor which can detect an abnormality of the air temperature sensor with high reliability. The determination of abnormality is performed based on a detected temperature of the air temperature sensor when it is determined that the engine is in a sufficiently warmed state and when it is determined that the vehicle is stopped. The determination may be performed based on a temperature detected by the air temperature sensor during a predetermined period after a start of the engine when the start of the engine is detected and when it is determined that the engine is in the sufficiently warmed state. Additionally, the determination may be performed based on a temperature detected by the air temperature sensor after detecting a start of a cooling fan.