Improved Adaptive Cruise Control for Autonomous Vehicles with Consideration of Crash Avoidance

Yu Zhang, Yunfeng Chu, Mingming Dong, Li Gao, Yechen Qin, Zhenfeng Wang

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

1 Citation (Scopus)

Abstract

Current Adaptive Cruise Control (ACC) systems are prone to risk of crash from surrounding unexpected cut-in vehicles. Hence, accurate risk evaluation for collisions and corresponding crash avoidance algorithms are highly desired. Therefore, in this work, we propose an accurate Time to Collision (TTC) calculation method using elliptical vehicle geometry, and evaluate the collision risks with surrounding vehicle, quantitatively. To avoid collision with multi-direction cut-in vehicle, a controller-switching mechanism based on TTC is first designed to switch back and forth between the performance-oriented controller and safety-oriented controller. Moreover, the proposed work is validated through simulations. The simulation results reveal that, for different scenarios (car-following, front-side and rear-side cut-in), proposed method can enhance the tracking performance while avoiding crash with surrounding vehicles from front-side and rear-side cut-in, effectively.

Original languageEnglish
Title of host publication2021 5th CAA International Conference on Vehicular Control and Intelligence, CVCI 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665408462
DOIs
Publication statusPublished - 2021
Event5th CAA International Conference on Vehicular Control and Intelligence, CVCI 2021 - Tianjin, China
Duration: 29 Oct 202131 Oct 2021

Publication series

Name2021 5th CAA International Conference on Vehicular Control and Intelligence, CVCI 2021

Conference

Conference5th CAA International Conference on Vehicular Control and Intelligence, CVCI 2021
Country/TerritoryChina
CityTianjin
Period29/10/2131/10/21

Keywords

  • Adaptive cruise control
  • Crash avoidance
  • controller-switching mechanism
  • model predictive control

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