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Dynamic Temperature Model of an Automatic Transmission
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This report presents the development of a dynamic temperature model for an

automatic transmission in a Volvo Cars passenger vehicle. The model should

simulate the oil to cooler temperature and flow from the transmission. A mathematical

approach to use lumped masses for different parts of the transmission

was used. To tune the response of the lumped masses and heat transfer coefficients;

temperature measurements were done on a vehicle in a chassis dyno.

To verify the model, simple drive cycles were performed with temperature measurement

in the same chassis dyno and on the same vehicle.

The verification on the model shows that the model can simulate the behavior

of a transmission with an error of 2.5 °C during normal behavior and 6.5 °C for

a few minutes when a sudden change in the temperature from the cooler have a

large transient increase.

Because of this, the model is considered to be fairly accurate. However, in order

to make the model compatible with Volvo Cars existing simulation software, Vsim, a "cooler model" has to be created.

Place, publisher, year, edition, pages
2019. , p. 40
Keywords [en]
Dynamic model, transmission, gearbox, temperature, lumped box
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-17641OAI: oai:DiVA.org:bth-17641DiVA, id: diva2:1291675
External cooperation
Volvo Cars
Subject / course
MT2525 Masters Thesis (120 credits) in Mechanical Engineering with emphasis on Structural Engineering
Educational program
MTAMT Master of Science Programme in Mechanical Engineering with emphasis on Structural Mechanics
Presentation
2019-01-17, J1630, Blekinge, Karlskrona, 13:00 (English)
Supervisors
Examiners
Available from: 2019-03-22 Created: 2019-02-25 Last updated: 2019-03-22Bibliographically approved

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BTH2019Zhang(4129 kB)40 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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