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:
Nov. 16, 2004

Filed:

Sep. 26, 2002
Applicant:
Inventors:

Yoshiaki Hirakata, Saitama, JP;

Osamu Nishioka, Saitama, JP;

Hideo Nihei, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 9/00 ; F02M 5/100 ;
U.S. Cl.
CPC ...
F02D 9/00 ; F02M 5/100 ;
Abstract

A totally closed value of the throttle valve of an engine having a fast idle function will be rendered capable of being correctly detected. The opening indicated value IACV to be supplied to the motor during a fast idle operation is a value obtained by adding the water temperature correction value and the atmospheric pressure correction value to the totally closed reference value. A value obtained by subtracting the water temperature correction value and the atmospheric pressure correction value from the actual opening to be detected by the throttle sensor is set to the totally closed value. When the value obtained by subtracting the water temperature correction value and the atmospheric pressure correction value from the actual opening goes out of the dead zone, the totally closed value is replaced with the value obtained by subtracting both correction values from the actual opening.


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