Title:
METHOD FOR DESIGNING INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2021/177184
Kind Code:
A1
Abstract:
A method for designing a direct-injection internal combustion engine (10) in which fuel is injected directly into a combustion chamber (21) by an injector (30), said method including: a target combustion characteristic acquisition step (S101) for acquiring a target combustion characteristic, which is a target value for a combustion characteristic of the internal combustion engine; a target equivalent ratio distribution calculation step (S102) for using a combustion characteristic sensitivity function quantifying the sensitivity of the combustion characteristic with respect to an equivalent ratio distribution in an air-fuel mixture of air and fuel generated in the combustion chamber to calculate a target equivalent ratio distribution, which is a target value for the equivalent ratio distribution with which the target combustion characteristic can be achieved; and an injector requirement calculation step (S104) for calculating an injector requirement, which is a requirement for a design parameter of the injector for achieving the target equivalent ratio distribution.
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Inventors:
WADA MASATAKE (JP)
YAMAGUCHI HIROSHI (JP)
KAWATA YUUKI (JP)
YAMAGUCHI HIROSHI (JP)
KAWATA YUUKI (JP)
Application Number:
PCT/JP2021/007483
Publication Date:
September 10, 2021
Filing Date:
February 26, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02M51/06; F02M61/04
Foreign References:
| JP2004011613A | 2004-01-15 | |||
| JP2005090389A | 2005-04-07 | |||
| JP2010038050A | 2010-02-18 | |||
| US20070261672A1 | 2007-11-15 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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