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:
Mar. 10, 1998

Filed:

Jun. 28, 1996
Applicant:
Inventors:

Hiroshi Kukita, Yokohama, JP;

Hirotada Muraki, Atsugi, JP;

Assignee:

Nissan Motor Co., Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
731182 ;
Abstract

A testing apparatus for a combustible charge intake system of an internal combustion engine, including a throttle position sensor and a throttle switch respectively coupled with a throttle valve, an accelerator switch coupled with an accelerator pedal, and a control unit operatively coupled with the switches. The control unit is operative to determine that the throttle valve has failed to operate normally when the throttle switch fails to shift to its predetermined state after the accelerator switch has shifted to its predetermined state. The control unit is operative to determine that the accelerator switch fails to operate normally in response to the control unit determining that the accelerator switch has failed to take the predetermined state thereof after the throttle switch has been in the predetermined state thereof.


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