Title:
METHOD AND DEVICE FOR PREDICTING AND AVOIDING CONDENSATION OF HUMIDITY IN AN INTAKE SYSTEM OF AN INTERNAL COMBUSTION ENGINE AFTER ENGINE SWITCH OFF
Document Type and Number:
WIPO Patent Application WO/2020/170792
Kind Code:
A1
Abstract:
The present invention relates to a method and a control unit for avoiding condensation of humidity in an intake system of an internal combustion engine after engine switch off. Condensed liquid in the intake system of the stopped engine can lead to icing, corrosion and a hydrostatic lock at the next engine start. To prevent such an engine damage, it is necessary to determine if and in which amount condensed liquid occurs in the cooled intake system and to initiate appropriate actions to eliminate the liquid therefrom. The present invention predicts the occurrence of condensation in the intake system of the cooled engine and initiates corrective measures at engine switch off and during the cooling down period.
Inventors:
MARCHI ANDREA (DE)
SARUWATARI MASAYUKI (JP)
YASUKAWA YOSHIHITO (DE)
SARUWATARI MASAYUKI (JP)
YASUKAWA YOSHIHITO (DE)
Application Number:
PCT/JP2020/004025
Publication Date:
August 27, 2020
Filing Date:
February 04, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02D45/00
Foreign References:
| US20180274454A1 | 2018-09-27 | |||
| US20160123255A1 | 2016-05-05 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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