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Improving the realism in the VTI driving simulators: Shake final report
Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.ORCID iD: 0000-0002-8242-3407
Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
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2012 (English)Report (Other academic)
Abstract [sv]

Väg- och transportforskningsinstitutet (VTI) har tre avancerade körsimulatorer med rörelsesystem. Syftet med detta projekt var att utveckla och implementera nya modeller för grafik, vibrationer och buller, allt i syfte att öka realismen för föraren i simulatorn. Vidare skulle en valideringsstudie genomföras. Inom ramen för projektet uppnåddes följande:

  • Utveckling av ett nytt grafiskt programpaket
  • •Förbättring av modellerna för vibrationer på grund av däck/väg
  • •Förbättring av rörelsesystemet genom förskjutning av rotationscentrum
  • •Förbättring av modulen för buller, genom återskapande av däck- och vägbuller.
  • •Synkronisering mellan vägytans grafiska presentation, buller och vibrationer .

Modellernas validitet testades i VTI:s simulator III. Statistisk testning av skillnader mellan verklig bil och simulator indikerade absolut validitet för subjektiva bedömningar av vägytans jämnhet och tysthet och för det objektiva måttet hastighet, med undantag av områden där hastighetsgränsen ändrades. I dessa områden erhölls endast relativ validitet eftersom både accelerationer och retardationer var snabbare i simulatorn än i verklig bil. Relativ validitet indikerades också för det subjektiva måttet generell komfort. Resultaten från de olika valideringarna visar att förbättringarna har varit framgångsrika och föraren i simulatorn kan nu se, höra och känna ojämnheter i vägbanan exakt när hjulen träffar dessa. Fortfarande återstår dock många möjligheter till ytterligare förbättringar i simulatormodellerna.

Abstract [en]

The Swedish Road and Transport Research Institute (VTI) has three advanced moving base driving simulators. The aim of this project was to develop and implement new models concerning vibration, noise and graphics in order to improve the realism in the simulators. Moreover, a validation study was to be conducted.

Within the frame of the project the following were achieved:

  • improvement of the tyre/road vibration models,
  • •improvement of the motion system by changing the rotation centre,
  • •improvement of the noise module facilitating reproduction of noise from tyre/road,
  • •synchronization of the impressions from graphics, noise and vibrations caused by the road surface.

The validity of the models was tested in the VTI Simulator III. Statistical testing of differences between the car and the simulator indicated absolute validity for the subjective ratings of evenness and noise level and the objective measure speed, with the exception of areas surrounding speed limit signs where only relative validity was found. Relative validity was also indicated for the variable overall comfort. The results from the different validations show that the improvements have been successful and the driver in the simulator can now see, hear and feel the sensation of any road surface irregularities exactly when the wheels hit that part of the road. However, several improvements in the simulator models can still be desired.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2012. , 59 p.
Series
VTI rapport, ISSN 0347-6030 ; 744A
Keyword [en]
Simulator (driving), Simulation, Technique, Improvement, Model (not math), Vibration, Noise
Keyword [sv]
Körsimulatorer, Simulering, Teknik, Förbättring, Modeller, Vibrationer, Buller
National Category
Vehicle Engineering
Research subject
Road: Vehicles and vehicle technology
Identifiers
URN: urn:nbn:se:vti:diva-1853OAI: oai:DiVA.org:vti-1853DiVA: diva2:670645
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2017-02-22Bibliographically approved

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