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:
Oct. 22, 1991
Filed:
Sep. 25, 1990
Masato Shimei, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
An automatic transmission shift control device has multiple friction engaging elements, and a shift timing valve port, a port for an underlap operating control-mode. A timing solenoid valve, a throttle sensor, an automobile speed sensor, and a controller operate the timing solenoid valve by signals from the throttle sensor and the automobile speed sensor. A shift map having an overlap area and an underlap area determines position of the shift timing valve within those areas. The shift timing valve being changed independent of the position in the areas determined by the degree of throttle opening and the automobile speed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile