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Simulation and Control of a Novel Two-Speed Uninterrupted Mechanical Transmission for Electric Vehicles

[+] Author Affiliations
Shengnan Fang, Jian Song, Yuzhuo Tai, Fei Li, Truong Sinh Nguyen

Tsinghua University, Beijing, China

Paper No. DETC2015-46939, pp. V003T01A043; 9 pages
doi:10.1115/DETC2015-46939
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 3: 17th International Conference on Advanced Vehicle Technologies; 12th International Conference on Design Education; 8th Frontiers in Biomedical Devices
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5710-6
  • Copyright © 2015 by ASME

abstract

Development of electric vehicle (EV) technology leads to the growing performance requirements of driving motor. Introducing a two-speed transmission to EV offers the possibility of economic and dynamic performance improvement of the whole powertrain. This paper presents an innovative two-speed Uninterrupted Mechanical Transmission (UMT), allowing the seamless shifting between two gears. Considering the uncertain factors during gearshift, a robust controller is designed based on H∞ control method. An optimal controller based on linear quadratic regulator is adopted for comparison. The results indicate that the UMT adopting robust controller provides an improvement of dynamic performance and shifting comfort for EV.

Copyright © 2015 by ASME

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