Assistant Professor, Tsinghua University, focussing on power-split hybrid powertrain design, analysis, simulation, testing and performance analysis and vehicle powertrain evaluation, driving system life-cycle analysis (including energy efficiency, emissions and cost-benefit, etc.), technology conditions for electric vehicle testing procedures, new energy vehicle industrial policy, and electric vehicle R&D technology roadmap. Concurrently, Academic Secretary, US-China CVC (China side). Former Working Group Member, MOST 12th Fifth Five-Year Plan; participated in drafting of electric vehicle science and technology development plan. Research achievements provide the theoretical basis for the drafting of the technology roadmap and industry promotion strategy.