HKU · SAIL LAB

Intelligence that
earns our trust.

Safe Autonomy and Interactive Learning (SAIL) Lab

Advancing safe, interactive autonomy for a world shared by humans and robots.

Explore our research ↗ Meet the PI →

01 / OUR MISSION

Safe decisions. Shared environments.

Our research asks how autonomous systems can act safely when the world is uncertain and other agents are adapting. We connect planning, control and learning to study autonomy in human environments.

Led by Chen Sun at the University of Hong Kong, our work spans field robotics, autonomous driving and human-centered cyber-physical systems.

02 / RESEARCH

From interaction to assurance.

01

Social & interactive
robotics

How should robots anticipate people and navigate shared spaces? We study social navigation and proactive human–robot interaction.

PHYSICAL AI

02

Safe planning &
multi-agent systems

How can vehicles and robots coordinate under uncertainty? We investigate game-theoretic planning and safety-aware decision-making.

PLANNING & CONTROL

03

Trustworthy
autonomous intelligence

How can we understand, calibrate and build trust in AI? We explore social contracts and safety for autonomous systems.

HUMAN-CENTERED AUTONOMY

03 / PEOPLE

The people behind the research.

Exploring safe autonomy, together.

Lab PI

Portrait of Chen Sun

PRINCIPAL INVESTIGATOR

Chen Sun

Assistant Professor · HKU DASE

Postdocs, Visiting Scholars and Engineers

Portrait of Zejian

POSTDOCTORAL RESEARCHER

Zejian, DENG

POSTDOCTORAL RESEARCHER

Yong, WANG

POSTDOCTORAL RESEARCHER

Guoshun, CAI

POSTDOCTORAL RESEARCHER

Kui, ZHANG

PH.D. and M.Phil. Students

Portrait of Jiahui

PHD Student

Jiahui, XU

Portrait of Jiwei

PHD Student

Jiwei, TANG

Portrait of Ruiyang

PHD Student

Ruiyang, GAO

Portrait of Yiming

PHD Student

Yiming, SHU

PHD Student

Wei, ZHANG

PHD Student

Wenbin, MAI

PHD Student

Shengyi, LI

Portrait of Yulun

MPHIL

Yulun, WU

Portrait of Zian Wang

MPHIL

Zian, WANG

MPHIL

Letian, SUN

MPHIL

Junfeng, ZHANG

04 / HIGHLIGHTS

Research in focus.

Trajectory Planning | Learning-based | Safety Assurance | Energy Management | Control & Dynamics | Perception

Point-Cloud Motion Planning — research illustration

Point-Cloud Motion Planning

A Novel Motion Planning for Autonomous Vehicles Using Point Cloud Based Potential Field

IEEE TVT · 2024 online

Trajectory Planning

Model-Free Vehicle Control

Model-Free Control Framework for Stability and Path Tracking of Autonomous Independent-Drive Vehicles

IEEE TTE · 2025 online

Control & Dynamics | Trajectory Planning

EAV-DETR with CP

EAV-DETR: Efficient Arbitrary-View oriented object detection with probabilistic guarantees for UAV imagery

ISPRS· 2026 online

Perception | Safety Assurance

AgentEMS

AgentEMS: Integrating DRL and LLM-refined rules for hierarchical energy management of multi-stack fuel cell vehicles

eTransportation · 2026 online

Energy Management | Learning-based

Hybrid-Action RL

Hybrid Action-Based Reinforcement Learning for Multiobjective Compatible Autonomous Driving

IEEE TNNLS · 2026 online

Learning-based | Trajectory Planning

DriveLegal — research illustration

DriveLegal

Toward Legally Compliant Driving via Trustworthy Hybrid Retrieval-Augmented LLMs

ESWA · 2026

Learning-based | Safety Assurance

Fuzzy Game-Theoretic MPC

Fuzzy Game-Theoretic Tube Model Predictive Control for Integrated Vehicle Stability System

IEEE TFS · 2026

Control & Dynamics | Safety Assurance

DriveSOTIF — research illustration

DriveSOTIF

Advancing SOTIF Through Multimodal Large Language Models

IEEE TVT · 2025 online

Learning-based | Safety Assurance

REAL-SAP — research illustration

REAL-SAP

Real-Time Evidence Aware Liable Safety Assessment for Perception in Autonomous Driving

IEEE TVT · 2024

Safety Assurance

06 / JOIN US

Help shape safer autonomy.

Interested in research with us? Explore opportunities in world models, interactive planning and coordination of robotic systems.

View research opportunities ↗