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Estimation of Tire Normal Forces including Suspension Dynamics

Author

Listed:
  • Louis Filipozzi

    (Department of Mechanical and Aerospace Engineering, University of California, Davis, CA 95616, USA)

  • Francis Assadian

    (Department of Mechanical and Aerospace Engineering, University of California, Davis, CA 95616, USA)

  • Ming Kuang

    (Advanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USA)

  • Rajit Johri

    (Advanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USA)

  • Jose Velazquez Alcantar

    (Advanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USA)

Abstract

Tire normal forces are difficult to measure, but information on the vehicle normal force can be used in many automotive engineering applications, e.g., rollover detection and vehicle and wheel stability. Previous papers use algebraic equations to estimate the tire normal force. In this article, the estimation of tire normal force is formulated as an input estimation problem. Two observers are proposed to solve this problem by using a quarter-car suspension model. First, the Youla Controller Output Observer framework is presented. It converts the estimation problem into a control problem and produces a Youla parameterized controller as observer. Second, a Kalman filter approach is taken and the input estimation problem is addressed with an Unbiased Minimum Variance Filter. Both methods use accelerometer and suspension deflection sensors to determine the vehicle normal force. The design of the observers is validated in simulation and a sensitivity analysis is performed to evaluate their robustness.

Suggested Citation

  • Louis Filipozzi & Francis Assadian & Ming Kuang & Rajit Johri & Jose Velazquez Alcantar, 2021. "Estimation of Tire Normal Forces including Suspension Dynamics," Energies, MDPI, vol. 14(9), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2378-:d:541417
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    Citations

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    Cited by:

    1. Jerzy Jackowski & Marcin Żmuda & Marcin Wieczorek & Andrzej Zuska, 2021. "Quasi-Static Research of ATV/UTV Non-Pneumatic Tires," Energies, MDPI, vol. 14(20), pages 1-12, October.
    2. Francis F. Assadian, 2022. "Advanced Control and Estimation Concepts and New Hardware Topologies for Future Mobility," Energies, MDPI, vol. 15(4), pages 1-3, February.
    3. Christian Engström & Per Öberg & Georgios Fontaras & Barouch Giechaskiel, 2022. "Considerations for Achieving Equivalence between Hub- and Roller-Type Dynamometers for Vehicle Exhaust Emissions," Energies, MDPI, vol. 15(20), pages 1-23, October.

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