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:
May. 02, 1989
Filed:
Dec. 17, 1987
Shunichi Kawai, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A throttle actuator in an automatic shift mechanism of a geared transmission for shifting to overdrive automatically includes first and second displacement members capable of being displaced relative to each other, the first displacement member being connected to the accelerator pedal and the second displacement member being connected to the engine throttle, a spring interposed between the first and second displacement members for displacing them in unison, actuating means attached to the second displacement member for displacing it relative to the first displacement member for displacing it relative to the first displacement member to open or close the engine throttle, and a CPU for controlling operation of the first actuating means. When a shift is made to overdrive, the CPU causes the actuating means to displace the second displacement member relative to the first displacement member, thereby opening or closing the engine throttle independently of operation of the accelerator pedal to control the rotational speed of the engine, whereby it is possible to engage or disengage the synchros in the transmission and to shift to overdrive automatically while the accelerator pedal remains depressed.