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Automotive Engineering ›› 2022, Vol. 44 ›› Issue (8): 1183-1198.doi: 10.19562/j.chinasae.qcgc.2022.08.008

Special Issue: 新能源汽车技术-动力电池&燃料电池2022年

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Design, Analysis and Validation of Novel Distributed Drive Liquid Hydrogen Fuel Cell Heavy Commercial Vehicles

Hang Li1,Zunyan Hu1(),Jiayi Hu1,Jiachen Dong1,Jianqiu Li1(),Liangfei Xu1,Ouyang Minggao1,Yu Bu2,Lijun Wang3,Zhidong Qin3   

  1. 1.School of Vehicle and Mobility,Tsinghua University,Beijing  100084
    2.Beijing Institute of Aerospace Testing Technology,Beijing  100068
    3.FOTON,Beijing  102206
  • Received:2022-02-11 Revised:2022-03-28 Online:2022-08-25 Published:2022-08-25
  • Contact: Zunyan Hu,Jianqiu Li E-mail:huzunyan@tsinghua.edu.cn;lijianqiu@tsinghua.edu.cn

Abstract:

According to the development requirements of high performance, long driving range and low cost for the powertrain of heavy commercial vehicles, a technical scheme for the distributed drive heavy commercial vehicles with liquid hydrogen fuel cell is proposed in this paper. In the scheme, many innovative technologies are applied, including high-power fuel cell system, large-capacity onboard liquid-hydrogen storage and supply system and distributed electric wheel drive system. Based on the design and matching techniques of fuel cell system, the first domestically publicized hundred-kilowatt-level fuel cell system (109 kW) is developed. Based on the breakthrough of key technologies such as onboard liquid hydrogen tank design, liquid hydrogen carburetor design and onboard liquid hydrogen BOG treatment and full system safety monitoring, the domestically first set on-board large-capacity liquid hydrogen storage and supply system (60 kg/110 kg) is developed. Based on the innovations in the magneto-thermal design, configuration design and integrated design of hub-motors, the electric wheels suitable for the double-tire assembled wheel for heavy vehicles are developed with a peak torque of single electric wheel of 16 000 N·m, a short-term peak torque of 18 000 N·m and a peak torque density of 60 N·m/kg. Based on the key technologies of components mentioned above, the world's first distributed drive liquid hydrogen fuel cell heavy commercial vehicle is developed, with a designed driving range of more than 1 000 km. The road tests on the 35 t and 49 t heavy commercial vehicle developed are carried out to verify the technical feasibility of liquid hydrogen storage, powertrain and distributed electric drive system, exploring the feasible direction of the electrification of heavy commercial vehicles.

Key words: heavy commercial vehicles, liquid hydrogen fuel cell, distributed drive, new energy commercial vehicles