Optimal control and construction design of variable-geometry suspension systems

B. Németh, P. Gáspár

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper proposes methods for the analysis and the control design of variable geometry suspension systems. The tilting actuation of the front wheel improves the lateral dynamics of the vehicle and assists the driver in avoiding critical situations. The novelty of the method is the consideration of the nonlinearities in the tyre characteristics. The nonlinear polynomial Sum-of- Squares (SOS) programming method is applied in the analysis and it gives the optimal utilization of the maximum control forces on the tires. Moreover, the construction of the system can be based on the nonlinear analysis. An LPV (Linear Parameter-Varying) based control-oriented modeling and control design for lateral vehicle dynamics are also proposed, which guarantee the trajectory tracking of the vehicle. The simulation example presents the efficiency of the variable-geometry suspension system and it shows that the system is suitable to be used as a driver assistance system.

Original languageEnglish
Title of host publicationThe Dynamics of Vehicles on Roads and Tracks - Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015
PublisherCRC Press/Balkema
Pages617-622
Number of pages6
ISBN (Print)9781138028852
Publication statusPublished - 2016
Event24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015 - Graz, Austria
Duration: Aug 17 2015Aug 21 2015

Other

Other24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015
CountryAustria
CityGraz
Period8/17/158/21/15

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ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering

Cite this

Németh, B., & Gáspár, P. (2016). Optimal control and construction design of variable-geometry suspension systems. In The Dynamics of Vehicles on Roads and Tracks - Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015 (pp. 617-622). CRC Press/Balkema.