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dc.contributor.author
Moser, Michael
dc.contributor.author
Voser, Christoph
dc.contributor.author
Onder, Christopher H.
dc.contributor.author
Guzzella, Lino
dc.date.accessioned
2021-07-28T12:05:53Z
dc.date.available
2017-06-10T11:10:37Z
dc.date.available
2018-09-12T13:11:47Z
dc.date.available
2021-07-28T12:05:53Z
dc.date.issued
2012
dc.identifier.isbn
978-3-902823-16-8
en_US
dc.identifier.issn
1474-6670
dc.identifier.other
10.3182/20121023-3-FR-4025.00019
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/58673
dc.description.abstract
Idling losses comprise a significant amount of the fuel consumption of internal combustion engines. Therefore, shutting down the engine during idling phases can improve their overall efficiency. For driver acceptance a fast restart of the engine must be guaranteed. A fast engine start can be realized using a powerful electric starter and an appropriate battery which are found for example in hybrid electric vehicles. However, these involve additional cost and weight. An alternative method is to use pressurized air stored in a tank that can be injected directly into the cylinders to start the engine pneumatically. In this paper pneumatic engine starts using camshaft driven charge valves are discussed. A general methodology for an air-optimal charge valve design is presented which can tackle various requirements. The proposed design methodology is based on a process model representing pneumatic engine operation. A design example for a two-cylinder engine is shown and the resulting optimized pneumatic start is experimentally verified on a test bench engine. The engine's idling speed of 1200 rpm can be reached within 350 ms for an initial pressure in the air tank of 10 bar.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
Engine start
en_US
dc.subject
Vehicle start
en_US
dc.subject
Pneumatic start
en_US
dc.subject
Compressed air
en_US
dc.subject
Charge valve
en_US
dc.subject
Engine stop
en_US
dc.title
Design methodology of camshaft driven charge valves for pneumatic engine starts
en_US
dc.type
Conference Paper
dc.date.published
2016-04-21
ethz.book.title
3rd IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling
en_US
ethz.journal.title
IFAC Proceedings Volumes
ethz.journal.volume
45
en_US
ethz.journal.issue
30
en_US
ethz.pages.start
33
en_US
ethz.pages.end
40
en_US
ethz.event
3rd IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling (E-COSM 2012)
en_US
ethz.event.location
Rueil-Malmaison, France
en_US
ethz.event.date
October 23-25, 2012
en_US
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02619 - Inst. Dynam. Syst. u. Regelungstechnik / Inst. Dynamic Systems and Control::03286 - Guzzella, Lino / Guzzella, Lino
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02619 - Inst. Dynam. Syst. u. Regelungstechnik / Inst. Dynamic Systems and Control::03286 - Guzzella, Lino / Guzzella, Lino
ethz.relation.isIdenticalTo
10.3929/ethz-b-000074075
ethz.date.deposited
2017-06-10T11:11:47Z
ethz.source
ECIT
ethz.identifier.importid
imp593650004513b39406
ethz.ecitpid
pub:93780
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-15T01:41:47Z
ethz.rosetta.lastUpdated
2022-03-29T10:46:34Z
ethz.rosetta.versionExported
true
ethz.COinS
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