I am currently an undergraduate student at Tongji University, , where I am actively involved in the TOPS Lab. Under the guidance of Professor Jian Sun and Professor Peng Hang, I am pursuing research at the intersection of cutting-edge technologies in autonomous driving systems and artificial intelligence.
My research interests are primarily focused on autonomous driving, with a particular emphasis on decision-making processes, reinforcement learning techniques, and the application of foundation models. I am passionate about developing innovative solutions to improve safety, efficiency, and the overall user experience in autonomous systems.
🔥 News
- 2025.06: 🎉🎉 One paper named Towards Emergency Scenarios: An Integrated Decision-making Framework of Multi-lane Platoon Reorganization is preprinted on Arvix.
- 2025.05: 🎉🎉 One paper named Towards Human-Centric Autonomous Driving: A Fast-Slow Architecture Integrating Large Language Model Guidance with Reinforcement Learning is preprinted on Arvix.
- 2025.03: 🎉🎉 One paper named Interact, Instruct to Improve: A LLM-Driven Parallel Actor-Reasoner Framework for Enhancing Autonomous Vehicle Interactions is preprinted on Arvix.
- 2025.02: 🎉🎉 One paper is accepted by IEEE Robotics and Automation Letters(SCI, Q1).
- 2025.02: 🎉🎉 One paper (first author) named TeLL-Drive: Enhancing Autonomous Driving with Teacher LLM-Guided Deep Reinforcement Learning is preprinted on Arvix.
- 2025.01: 🎉🎉 One paper named Recognize then Resolve: A Hybrid Framework for Understanding Interaction and Cooperative Conflict Resolution in Mixed Traffic is preprinted on Arvix.
- 2024.12: 🎉🎉 I was honored with the prestigious title of Academic Star of Tongji University, the highest academic distinction awarded to students at our university!This achievement has been reported in 1 and 2.
- 2024.08: 🎉🎉 One paper (first author) named Towards Safe and Robust Autonomous Vehicle Platooning: A Self-Organizing Cooperative Control Framework is preprinted on Arvix.
- 2024.05: 🎉🎉 I won the first prize of China Transportation Science and Technology Competition, which is the most important undergraduate academic competition in China’s transportation field! And the prize is the only one our school won in the same year!
📝 Publications
TeLL-Drive: Enhancing Autonomous Driving with Teacher LLM-Guided Deep Reinforcement Learning
Chengkai Xu, Jiaqi Liu, Shiyu Fang, Yiming Cui, Dong Chen, Peng Hang, Jian Sun, preprint.
Chengkai Xu, Zihao Deng, Jiaqi Liu⋆, Chao Huang, Peng Hang⋆, preprint.
Chengkai Xu, Jiaqi Liu, Yicheng Guo, Yuhang Zhang, Peng Hang⋆, Jian Sun, preprint.
- Language-driven policy distillation for cooperative driving in multi-agent reinforcement learning, Jiaqi Liu, Chengkai Xu, Peng Hang, Jian Sun, Mingyu Ding, Wei Zhan, Masayoshi Tomizuka, accepted by IEEE Robotics and Automation Letters (RA-L).
- Interact, Instruct to Improve: A LLM-Driven Parallel Actor-Reasoner Framework for Enhancing Autonomous Vehicle Interactions, Shiyu Fang, Jiaqi Liu, Chengkai Xu, Chen Lv, Peng Hang, Jian Sun, preprint.
- Recognize then Resolve: A Hybrid Framework for Understanding Interaction and Cooperative Conflict Resolution in Mixed Traffic, Shiyu Fang, Donghao Zhou, Yiming Cui, ChengKai Xu, Peng Hang, Jian Sun, preprint.
🎖 Honors and Awards
- 2025.05 Tongji University Pursuit of Excellence Award (6/18000+)
- 2024.12 Academic Star of Tongji University
- 2024.11 Jingchuan Scholarship
- 2024.05 First Prize in China Transportation Science and Technology Competition
- 2022.12 Outstanding Student Leader of Tongji University
- 2022-2025 Tang Zhongying Moral Education Scholarship
- 2021-2024 Outstanding Student Award at Tongji University
📖 Educations
- 2025.09 - now, Master of Traffic Engineering, Tongji University, Shanghai, China
- 2021.09 - 2025.06, Bachelor of Traffic Engineering, Tongji University, Shanghai, China (Rank: 1/230)