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Design and Simulation of Steering Control Strategy for Four-Wheel Steering Hillside Tractor

Author

Listed:
  • Jiawang Zhu

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Tianci Feng

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Shuyi Kang

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Du Chen

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Xindong Ni

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Ling Wang

    (College of Engineering, China Agricultural University, Beijing 100083, China)

Abstract

Steering control is vital for hillside tractors, and four-wheel-steering technology significantly enhances stability and flexibility. However, existing methods often overlook the slope–stability relationship. In order to address this issue, considering the impact of tractor wheels on the steering characteristics, a nonlinear three-degree-of-freedom dynamic model based on the basic requirements within a 15° range of slope angles was derived. Subsequently, a four-wheel steering control strategy for hillside tractors was designed based on this model, incorporating a fuzzy PID control algorithm. The dynamics model was validated on the high-fidelity Carsim/Simulink co-simulation platform, and relevant experiments were conducted in Matlab/Simulink. Results showed that fuzzy PID control reduced the yaw rate’s average settling time from 0.36 s to 0.1 s and the response value from 0.28 rad/s to 0.038 rad/s. In addition, the lateral velocity and sideslip angle responses closely matched ideal values. Thus, the tractor with four-wheel steering under fuzzy PID control exhibited improved wheel angle flexibility and higher tracking accuracy. Finally, hardware-in-the-loop-experiments were conducted, confirming the algorithm’s effectiveness in ensuring stability and meeting the requirements of semi-physical simulation scenarios. This research provides a foundation for potential applications in tractor manufacturing to improve control performance on hilly terrains.

Suggested Citation

  • Jiawang Zhu & Tianci Feng & Shuyi Kang & Du Chen & Xindong Ni & Ling Wang, 2024. "Design and Simulation of Steering Control Strategy for Four-Wheel Steering Hillside Tractor," Agriculture, MDPI, vol. 14(12), pages 1-18, December.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:12:p:2238-:d:1538512
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    References listed on IDEAS

    as
    1. Hequan Miao & Peisong Diao & Wenyan Yao & Shaochuan Li & Wenjun Wang, 2022. "Stability Study of Time Lag Disturbance in an Automatic Tractor Steering System Based on Sliding Mode Predictive Control," Agriculture, MDPI, vol. 12(12), pages 1-22, December.
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