Title:
CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE PREVENTING CONDENSATION OF INTAKE GAS IN AN INTERCOOLER
Document Type and Number:
WIPO Patent Application WO/2015/071723
Kind Code:
A3
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.
Inventors:
OKADA YOSHIHIRO (JP)
KOBAYASHI SHU (JP)
KOBAYASHI SHU (JP)
Application Number:
PCT/IB2014/002377
Publication Date:
November 26, 2015
Filing Date:
November 07, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
F01N3/08; F02D41/00; F02B29/04; F02D41/02; F02M25/07
Domestic Patent References:
| WO2014125984A1 | 2014-08-21 | |||
| WO2013111273A1 | 2013-08-01 |
Foreign References:
| EP1496221A2 | 2005-01-12 | |||
| JP2009174444A | 2009-08-06 |
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