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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 9638120 B1

PDFFull Text
Date of Patent:
May. 02, 2017

Filed:

Nov. 07, 2014

Control device for an internal combustion engine preventing condensation of intake gas in an intercooler

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Yoshihiro Okada, Susono, JP;

Shu Kobayashi, Gotemba, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;

Attorney:

Andrews Kurth Kenyon LLP

Primary Examiner:

Jason Shanske

Int. Cl.
CPC ...
F01N 3/02 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02B 29/04 (2006.01); F01P 3/20 (2006.01); F02M 26/06 (2016.01); F02M 26/50 (2016.01); F02M 26/22 (2016.01); F02M 26/20 (2016.01); F02M 26/33 (2016.01); F01N 3/08 (2006.01); F02D 41/26 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0072 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01P 3/20 (2013.01); F02B 29/0443 (2013.01); F02B 29/0462 (2013.01); F02B 29/0493 (2013.01); F02D 41/005 (2013.01); F02D 41/0055 (2013.01); F02D 41/0065 (2013.01); F02D 41/0235 (2013.01); F02D 41/0275 (2013.01); F02D 41/26 (2013.01); F02M 26/06 (2016.02); F02M 26/20 (2016.02); F02M 26/22 (2016.02); F02M 26/33 (2016.02); F02M 26/50 (2016.02); F02M 35/1038 (2013.01); F02M 35/10157 (2013.01); F02M 35/10222 (2013.01); F02M 35/10268 (2013.01); F02M 35/10393 (2013.01); F01P 2060/02 (2013.01); F02D 41/0007 (2013.01); F02D 41/0255 (2013.01); F02D 2200/0414 (2013.01); F02D 2200/0418 (2013.01); F02D 2200/0802 (2013.01); F02D 2200/101 (2013.01); Y02T 10/146 (2013.01); Y02T 10/47 (2013.01);
Abstract

A control device for an internal combustion engine includes an intake gas compressor, a cooling water circuit, an intercooler and an EGR device. An ECU is configured to: (a) control the temperature, of the cooling water of the intercooler to a target temperature in a specified external air state in which an external air temperature and an external air humidity are a specified temperature and a specified humidity, the target temperature being the temperature of the cooling water of the intercooler required for ensuring a specified performance in the specified external air state; and (b) control the EGR device based on an EGR rate mapping of the EGR rate. The EGR rate mapping being set so that a dew point of gas flowing into the intercooler does not exceed the target temperature.

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