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:
Apr. 21, 1992
Filed:
Feb. 14, 1991
Shinichi Mogaki, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An apparatus and a method for determining a failure of a temperature sensor for an automatic transmission of a motor vehicle are provided. A first temperature sensor senses the temperature of a coolant for cooling an engine. A second temperature sensor senses the temperature of a hydraulic oil in the transmission. The output of the second temperature sensor is compared with a first failure determination level and a second failure determination level. It is determined that the second temperature sensor is in a failure when the output of the second temperature sensor is lower than the first failure determination level or higher than the second failure determination level. The output of the first temperature sensor is compared with a first predetermined level and a second predetermined level which is higher than the first predetermined level. The determination of a failure of the second temperature sensor is prohibited when the output of the first temperature sensor is below the first predetermined level or above the second predetermined level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile