An adaptive path tracking controller for autonomous vehicles based on the Pure Pursuit algorithm

Yuze Wang, Dongguang Li, Xing Zhuang, Yue Wang*, Siyuan Yang, Ruoyu Wu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Aiming at the problem of unmanned vehicle path tracking, this paper proposes an adaptive path tracking controller based on the Pure Pursuit(PP) method. The controller replaces the traditional manual selection of the lookahead distance in the traditional PP algorithm with the Deep Q Network (DQN) algorithm. The controller dynamically adjusts the lookahead distance based on lateral error, heading error, and vehicle speed to adapt to different operating conditions and improve path tracking performance. This paper obtained the Deep Q Network - Pure Pursuit (DQN-PP) adaptive controller model through reinforcement learning training. In order to verify the control effect of the DQN-PP adaptive controller, this paper designed a simulation experiment and analyzed the experimental results. The results show that compared with the traditional method, the DQN-PP adaptive controller has better path tracking performance, and the average error value of path tracking has been reduced by 21%. This paper provides an effective adaptive solution for path tracking control in autonomous vehicles and has practical application value.

Original languageEnglish
Title of host publicationProceedings - 2023 China Automation Congress, CAC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages7508-7512
Number of pages5
ISBN (Electronic)9798350303759
DOIs
Publication statusPublished - 2023
Event2023 China Automation Congress, CAC 2023 - Chongqing, China
Duration: 17 Nov 202319 Nov 2023

Publication series

NameProceedings - 2023 China Automation Congress, CAC 2023

Conference

Conference2023 China Automation Congress, CAC 2023
Country/TerritoryChina
CityChongqing
Period17/11/2319/11/23

Keywords

  • Adaptive Controller
  • Deep Q Network
  • Path Tracking
  • Pure Pursuit

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