Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Investigation of active anti-roll bars and development of control algorithm
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Fordonsdynamik.
2017 (Engelska)Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
Abstract [en]

Active anti-roll bars have recently found greater acceptance among premium car manufacturers and optimal application of this technology has emerged as an important field of research. This thesis investigates the potential of implementing active anti-roll bars in a passenger vehicle with the purpose of increasing customer value. For active anti-roll bars, customer value is defined in terms of vehicle’s ride comfort and handling performance. The objective with this thesis is to demonstrate this value through development of a control algorithm that can reflect the potential improvement in ride comfort and handling. A vehicle with passive anti-roll bars is simulated for different manoeuvres to identify the potential and establish a reference for the development of a control algorithm and for the performance of active anti-roll bars. While ride is evaluated using single-sided cosine wave and single-sided ramps, handling is evaluated using standardized constant radius, frequency response and sine with dwell manoeuvres.The control strategy developed implements a combination of sliding mode control, feed forward and PI-controllers. Simulations with active anti-roll bars showed significant improvement in ride and handling performance in comparison to passive anti-roll bars. In ride comfort, the biggest benefit was seen in the ability to increase roll damping and isolating low frequency road excitations. For handling, most significant benefits are through the system’s ability of changing the understeer behaviour of the vehicle and improving the handling stability in transient manoeuvres. Improvement in the roll reduction capability during steady state cornering is also substantial. In conclusion, active anti-roll bars are undoubtedly capable of improving both ride comfort and handling performance of a vehicle. Although the trade-off between ride and handling performance is significantly less, balance in requirements is critical to utilise the full potential of active anti-roll bars. With a more comprehensive control strategy, they also enable the vehicle to exhibit different driving characteristics without the need for changing any additional hardware.

Ort, förlag, år, upplaga, sidor
2017. , s. 96
Serie
TRITA-AVE, ISSN 1651-7660 ; 2017:55
Nyckelord [en]
Active anti-roll bar, suspension, chassis, vehicle dynamics, handling, ride comfort, roll, yaw, PI-controller, sliding mode controller.
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:kth:diva-223321OAI: oai:DiVA.org:kth-223321DiVA, id: diva2:1183313
Externt samarbete
VOlvo Cars
Examinatorer
Tillgänglig från: 2018-02-16 Skapad: 2018-02-16 Senast uppdaterad: 2018-02-16Bibliografiskt granskad

Open Access i DiVA

fulltext(5568 kB)106 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 5568 kBChecksumma SHA-512
625d920eea222a2d4627a447096a3cbb7658742a299eae3e7a7f71e1b00233aad64e55536cd7cbc79e72bdceeaa39ff41fe26acde7375ca0e665846cf1586609
Typ fulltextMimetyp application/pdf

Av organisationen
Fordonsdynamik
Teknik och teknologier

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 106 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 496 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf