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Development of Realizable and Adaptive Wheel Torque Allocation for the Control of Planar Vehicle Dynamics

[+] Author Affiliations
Scott Varnhagen, Olugbenga Moses Anubi, Donald Margolis

University of California, Davis, CA

Paper No. DSCC2014-5841, pp. V003T49A001; 10 pages
doi:10.1115/DSCC2014-5841
From:
  • ASME 2014 Dynamic Systems and Control Conference
  • Volume 3: Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy
  • San Antonio, Texas, USA, October 22–24, 2014
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-4620-9
  • Copyright © 2014 by ASME

abstract

A control allocation architecture is developed for the control of the planar dynamics of a wheel motored vehicle. First, a benchmark controller is presented which takes advantage of indeterminate tire information to make informed control allocation decisions. This optimal controller is then simplified by an assumption of small slip-ratio, resulting in a controller which relies on only estimable parameters and is thus practical. Unfortunately, this suboptimal control allocation receives no information relating to tire saturation and its performance is significantly degraded compared with the optimal controller. In response, a holistic measure of tire saturation based only on estimable quantities is proposed and incorporated into the suboptimal control allocation routine. The result is a real-time implementable control system whose performance approaches that of the optimal benchmark control system.

Copyright © 2014 by ASME

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