4.7 Article

Active Collision Avoidance Strategy Considering Motion Uncertainty of the pedestrian

Journal

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TITS.2020.3037927

Keywords

Active collision avoidance; pedestrian-vehicle; interaction model; motion uncertainty; trajectory planning; multi-objective; evaluation

Funding

  1. National Natural Science Foundation of China [51875279]
  2. Open Fund for Graduate Innovation Base of Nanjing University of Aeronautics and Astronautics [kfjj20190211]

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This work proposes an active collision avoidance method between autonomous driving vehicle and pedestrian with motion uncertainty. By combining candidate trajectory planning and pedestrian-vehicle interaction model, it can effectively predict pedestrian's motion and evaluate the optimal trajectory.
This work proposes an active collision avoidance between autonomous driving vehicle and pedestrian with motion uncertainty under urban road. A candidate trajectory planning method considering spatial and time sequences is proposed, which combines the polynomial path planning and the velocity planning with variable safety velocity. Then, a pedestrian-vehicle interaction model is constructed, which takes the pedestrian's uncertain motion as a superposition of the Markov process without interference and the motion caused by the vehicle, and predicts the pedestrian's motion probabilistically. On these bases, the optimal trajectory is evaluated from the candidate trajectories by safety, stability, and efficiency, as well as different driving styles. The proposed collision avoidance strategy is verified in conventional and emergency simulation scenarios. Simulation results show that it can effectively plan a safe, stable and efficient trajectory under normal and emergency conditions.

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