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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 10502175 B1

PDFFull Text
Date of Patent:
Dec. 10, 2019

Filed:

Dec. 15, 2017

Control device for internal combustion engine and method of estimating combustion chamber-wall temperature of internal combustion engine

Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Yuichi Toyama, Isesaki, JP;

Shigeyuki Sakaguchi, Isesaki, JP;

Atsushi Murai, Isesaki, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Hai H Huynh

Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02P 5/04 (2006.01); F02D 15/02 (2006.01); F02D 41/32 (2006.01); F02P 5/15 (2006.01); F02D 13/02 (2006.01); F02D 41/18 (2006.01); F02D 35/02 (2006.01); F02D 41/04 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02P 5/045 (2013.01); F02D 13/0234 (2013.01); F02D 15/02 (2013.01); F02D 35/026 (2013.01); F02D 41/123 (2013.01); F02D 41/18 (2013.01); F02D 41/32 (2013.01); F02P 5/15 (2013.01); F02D 13/0238 (2013.01); F02D 41/047 (2013.01); F02D 2041/001 (2013.01); F02D 2200/021 (2013.01); F02D 2200/022 (2013.01); F02D 2200/101 (2013.01);
Abstract

In a control device for an internal combustion engine and a method of estimating a combustion chamber-wall temperature of an internal combustion engine of the invention, a difference between a wall temperature of the combustion chamber and a cooling water temperature is set according to an integrated value of the intake air amount of the internal combustion engine after start of the fuel-cut, and the estimated value of the wall temperature of the combustion chamber during the fuel-cut is obtained based on the difference and the cooling water temperature.

Find Patent Forward Citations

Toyama, Yuichi. (2019). Control device for internal combustion engine and method of estimating combustion chamber-wall temperature of internal combustion engine (U.S. Patent No. 10502175). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10502175

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

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