Dynamic cylinder deactivation: Thermodynamic mapping for the case of stoichiometric SI ICE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00364683" target="_blank" >RIV/68407700:21220/23:00364683 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1177/14680874221098039" target="_blank" >https://doi.org/10.1177/14680874221098039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/14680874221098039" target="_blank" >10.1177/14680874221098039</a>

Result language

angličtina

Original language name

Dynamic cylinder deactivation: Thermodynamic mapping for the case of stoichiometric SI ICE

Original language description

Conventional cylinder deactivation has been improving internal combustion efficiency for decades. It provides benefits for any internal combustion engine, particularly engines with high number of cylinders. The level of engine displacement reduction depends on the number of cylinders that may be deactivated during operation. This limits the potential benefit. Theoretically, maximum benefit of cylinder deactivation would require assignment of specific displacement reduction to each engine operating point. Dynamic cylinder deactivation is a new approach, which does not continuously deactivate cylinders, but deactivates selected engine cycles. This allows to dynamically reduce engine displacement and to assign optimum displacement reduction to each operating point. The paper deals with the one-dimensional thermodynamic simulation of the dynamic cylinder deactivation applied to a small displacement four-cylinder gasoline engine, points out crucial attributes of this new approach and compares it with baseline engine layouts and with the conventional cylinder deactivation as well. The research concludes that the dynamic cylinder deactivation improves the fuel consumption for engines loads BMEP < 5 bar. Deactivation strategy with the lowest trapped mass value in the deactivated cycle shows the most benefit.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/TN01000026" target="_blank" >TN01000026: Josef Bozek National Center of Competence for Surface Vehicles</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Engine Research

ISSN

1468-0874

e-ISSN

2041-3149

Volume of the periodical

24

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

1724-1743

UT code for WoS article

000811626800001

EID of the result in the Scopus database

2-s2.0-85131739144