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WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control
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A New Trajectory Tracking Algorithm for Autonomous Vehicles Based on Model Predictive Control.

Zhejun Huang1,2,3, Huiyun Li1,2,3, Wenfei Li1,2,3

  • 1Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.

Sensors (Basel, Switzerland)
|November 13, 2021
PubMed
Summary

This study introduces a model predictive control (MPC) method for autonomous vehicle trajectory tracking. Using backward Euler integration improves tracking accuracy significantly with minimal computational cost.

Keywords:
autonomous drivingmodel predictive controlreal-time controltrajectory tracking

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Area of Science:

  • Autonomous Systems
  • Control Theory
  • Robotics

Background:

  • Precise trajectory tracking is crucial for autonomous vehicle control.
  • Existing methods often face limitations in real-time performance and accuracy.

Purpose of the Study:

  • To develop an improved trajectory-tracking method for autonomous vehicles.
  • To enhance the accuracy and real-time capabilities of model predictive control (MPC).

Main Methods:

  • Proposed a trajectory-tracking method based on model predictive control (MPC).
  • Utilized backward Euler integration for predictive model establishment, differing from the forward Euler method.
  • Implemented constraints on the control law and employed a warm-start technique for real-time performance.

Main Results:

  • The MPC-based controller demonstrated improved stability and tracking performance.
  • Significant reductions in maximum lateral errors were observed (69.09%, 47.89%, 78.66%).
  • The controller achieved real-time performance with calculation times below 0.0203 s, fitting within the control period.

Conclusions:

  • The proposed backward Euler-based MPC method offers superior trajectory-tracking performance for autonomous vehicles.
  • The approach effectively balances accuracy improvements with real-time computational demands.
  • This method represents a viable advancement for precise autonomous vehicle control systems.