Direct Tire Force Generation Algorithm Based on Non-iterative Nonlinear Inverse Tire Model

The function of vehicle dynamics control system is adjusting the yaw moment, the longitudinal force and lateral force of a vehicle body through several chassis systems, such as brakes, steering and suspension. Individual systems such as electronic stability control (ESC), AFS and four wheel drive (4WD) can be used to achieve desired performance by controlling actuator variables. However, integrated chassis control systems that have multiple objectives may not simply achieve the desired performance by controlling the actuators directly. Usually those systems determine the required tire forces in an upper level controller and a lower level controller regulates the tire forces through the actuators. The tire force is controlled in a recursive way based on vehicle state measurement, which may not be sufficient for fast response. For immediate force tracking, we introduce a direct tire force generation method that uses a nonlinear inverse tire model, a pseudo-inverse model of vehicle dynamics and the relationship between longitudinal force and brake pressure.

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    • Copyright © 2017, The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg. The contents of this paper reflect the views of the author[s] and do not necessarily reflect the official views or policies of the Transportation Research Board or the National Academy of Sciences.
  • Authors:
    • Kang, Boryeon
    • Ahn, Changsun
  • Publication Date: 2017-12

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  • English

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  • Accession Number: 01644984
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 9 2017 1:54PM