Designing On-Demand Four-Wheel-Drive Vehicles via Active Control of the Central Transfer Case

New driveline architectures equipped with torque-biasing devices such as active differentials and active transfer cases have yielded a new generation of on-demand four-wheel-drive vehicles, where the torque distribution between left and right and between front and rear axles can actively be modulated online. This allows one to design active vehicle-control systems that are capable of altering, via electronic control, the behavior of a car dictated from its mechanical layout, e.g., understeering and oversteering characteristics. This paper proposes a control strategy that optimizes vehicle performance while guaranteeing vehicle stability and drivability by actively controlling the transfer case. The performance of the overall control strategy is assessed on both a multibody simulator and an instrumented test vehicle.

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  • Supplemental Notes:
    • Abstract reprinted with permission of IEEE.
  • Authors:
    • Panzani, Giulio
    • Corno, Matteo
    • Tanelli, Mara
    • Zappavigna, Annalisa
    • Savaresi, Sergio M
    • Fortina, Andrea
    • Campo, Sebastiano
  • Publication Date: 2010

Language

  • English

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  • Accession Number: 01333667
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: TLIB
  • Created Date: Mar 21 2011 2:15PM