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.:

US 7100571 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 05, 2006

Filed:

Feb. 23, 2006
Applicant:

Shumpei Hasegawa, Saitama, JP;

Inventor:

Shumpei Hasegawa, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a value to be replaced for an output of a manifold pressure sensor in case of failure of the manifold pressure sensor for detecting a manifold pressure for calculating the amount of fuel injection. An abnormality determination unit outputs an abnormal signal when an output voltage of a manifold pressure sensor is not within a predetermined range. A manifold pressure estimating unit calculates an estimated manifold pressure value on the basis of the engine revolution, a throttle opening, and an atmospheric pressure. The manifold pressure estimating unit uses the estimated value as a substitute value of the output of the manifold pressure sensor and continues to control the engine when the manifold pressure sensor has failed.


Find Patent Forward Citations

Hasegawa, Shumpei. (2006). Method and apparatus for controlling engine (U.S. Patent No. 7100571). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7100571

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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