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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 10519891 B1

PDFFull Text
Expired
Date of Patent:
Dec. 31, 2019

Filed:

Oct. 05, 2016

Control device for internal combustion engine

Applicant:

Hitachi Automotive Systems, Ltd., Ibaraki, JP;

Inventors:

Hiroaki Hoshika, Hitachinaka, JP;

Takeo Hosokawa, Hitachinaka, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Syed O Hasan

Int. Cl.
CPC ...
F02D 41/22 (2006.01); F02M 26/42 (2016.01); F02D 41/24 (2006.01); F02D 41/14 (2006.01); F02M 26/46 (2016.01); F02M 35/10 (2006.01); F02B 37/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/222 (2013.01); F02B 37/00 (2013.01); F02D 41/144 (2013.01); F02D 41/2432 (2013.01); F02D 41/2451 (2013.01); F02M 26/46 (2016.02); F02M 35/10157 (2013.01); F02M 35/10249 (2013.01); F02M 35/10373 (2013.01); F02M 35/10393 (2013.01); F02D 2200/0418 (2013.01);
Abstract

In order to provide a highly precise and highly responsive humidity detection means with which diagnosis is easy, this control device for an internal combustion engine is characterized in that two or more sensors for detecting the humidity of the atmosphere or a gas mixed with the atmosphere are provided in the middle of the flow in an intake air passage of the internal combustion engine, at least one of these sensors being a relative humidity sensor for detecting the relative humidity, at least one other of the sensors being an absolute humidity sensor for detecting the absolute humidity, and the relative humidity sensor being arranged upstream from the absolute humidity sensor.

Find Patent Forward Citations

Hoshika, Hiroaki. (2019). Control device for internal combustion engine (U.S. Patent No. 10519891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10519891

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

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