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Reduction of oil pump losses in automatic transmissions
Linköping University, Department of Electrical Engineering, Vehicular Systems. Linköping University, The Institute of Technology.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In the vehicle industry it is of great interest to reduce the emissions and lower the fuel consumption.Up to now a lot of effort has been put into increasing the efficiency of the engine,but it starts to get expensive to keep improving the engine. In this master thesis the transmissionand especially the oil supply to the transmission is investigated.

An example of how the requirements of an oil pump can be decided is described. Knowingthe requirements different pumps may be adapted to meet the demands. The gear pumpused today is compared with a variable displacement pump and an electric pump. The gearpump is not possible to control, but the other two are. A few simple control strategies areintroduced. The strategies are implemented and the three pumps are used in the same drivecycle. It is shown that it is possible to reduce the energy that the pump requires if it isreplaced by a variable vane pump or an electric pump.

Place, publisher, year, edition, pages
2014. , 52 p.
Keyword [en]
oil pump, vane pump, gear pump, electric pump, variable displacement, automatic transmission, pump, oil, control
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-111937ISRN: LiTH-ISY-EX--14/4804--SEOAI: oai:DiVA.org:liu-111937DiVA: diva2:762180
External cooperation
AVL
Subject / course
Vehicular Systems
Supervisors
Examiners
Available from: 2014-11-11 Created: 2014-11-10 Last updated: 2014-11-11Bibliographically approved

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Reduction of oil pump losses in automatic transmissions(1683 kB)782 downloads
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Larsson, Camilla
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf