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.

Date of Patent:
Jan. 12, 1988

Filed:

Apr. 09, 1986
Applicant:
Inventors:

Shinji Katayose, Tokyo, JP;

Minoru Tamura, Yokohama, JP;

Hideaki Inoue, Yokosuka, JP;

Akira Takei, Yokosuka, JP;

Takashi Oka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ; F02D / ;
U.S. Cl.
CPC ...
123399 ; 123361 ;
Abstract

A system and method for controlling the opening angle of a throttle valve installed within an engine for a vehicle, in which the rate of change of the opening angular position of the throttle valve is calculated as a substantially cubic function of a relative rate of change in an angular position of an accelerator pedal, so that the speed of vehicle is held approximately constant when there is no consistent change in the angular position of the accelerator pedal and the speed of vehicle changes quickly as the rate of change of the angular position of the accelerator pedal increases.


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