DYNAMIC CYLINDER DEACTIVATION FOR A SPARK IGNITION ENGINE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00320650" target="_blank" >RIV/68407700:21220/17:00320650 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

DYNAMIC CYLINDER DEACTIVATION FOR A SPARK IGNITION ENGINE

Popis výsledku v původním jazyce

Significant efficiency loss of the spark ignition engines with stoichiometric mixture stems from the throttling that occurs at the partial load of the engine, which is the most utilized mode during the engine operation. Downsizing and downspeeding have enabled to partially decrease this loss, however, with the upcoming trend of "rightsizing", de-throttling methods are again of higher interest. One of the approaches is cylinder deactivation, which has been used in static mode yet, i. e., usually half of the even number of cylinders is switched-off during part load operation (and lower engine speed). Another approach in the cylinder deactivation is its dynamic use, i. e., all cylinders continuously switch between the activated and deactivated mode. This is suitable particularly for odd number of cylinders and does not exist in production yet. The paper deals with 1-D simulation of this kind of cylinder deactivation, compares different approaches to the gas exchange process of such deactivation, points out the benefits and advantages over other partial load control methods and also shows simulation issues that emerge with the dynamic deactivation.

Název v anglickém jazyce

DYNAMIC CYLINDER DEACTIVATION FOR A SPARK IGNITION ENGINE

Popis výsledku anglicky

Significant efficiency loss of the spark ignition engines with stoichiometric mixture stems from the throttling that occurs at the partial load of the engine, which is the most utilized mode during the engine operation. Downsizing and downspeeding have enabled to partially decrease this loss, however, with the upcoming trend of "rightsizing", de-throttling methods are again of higher interest. One of the approaches is cylinder deactivation, which has been used in static mode yet, i. e., usually half of the even number of cylinders is switched-off during part load operation (and lower engine speed). Another approach in the cylinder deactivation is its dynamic use, i. e., all cylinders continuously switch between the activated and deactivated mode. This is suitable particularly for odd number of cylinders and does not exist in production yet. The paper deals with 1-D simulation of this kind of cylinder deactivation, compares different approaches to the gas exchange process of such deactivation, points out the benefits and advantages over other partial load control methods and also shows simulation issues that emerge with the dynamic deactivation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/ED2.1.00%2F03.0125" target="_blank" >ED2.1.00/03.0125: Pořízení technologie pro Centrum vozidel udržitelné mobility</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

KOKA 2017 - XLVIII. mezinárodní vědecká konference českých a slovenských univerzit a institucí zabývajících se výzkumem motorových vozidel a spalovacích motorů

ISBN

978-80-7494-354-6

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

131-142

Název nakladatele

Technická univerzita v Liberci

Místo vydání

Liberec

Místo konání akce

Liberec

Datum konání akce

11. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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