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. 21, 1990
Filed:
Jun. 10, 1988
Takahiro Kyohzuka, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A throttle valve opening detecting apparatus of an automatic transmission for detecting an angular position or opening of a throttle valve for controlling the amount of air-fuel mixture reaching cylinders of a vehicle engine that includes a throttle valve position sensor for providing an output proportional to an angular position or opening of the throttle valve. A memory device memorizes a minimum value of the output to set a reference output for a closed position of the throttle valve. A renewing device decreasingly renews the reference output when the throttle valve position sensor provides an output smaller than the reference output set in the reference output. The renewing device increasingly renews the reference output when the throttle valve position sensor provides an output larger than the reference output and smaller than a preset reference output for a predetermined or preselected period of time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile