Coordinated control strategy for braking and shifting for electric vehicle with two-speed automatic transmission

This paper presents a coordinated control strategy for braking and shifting of electric vehicles that are equipped with a two-speed automatic transmission. The coordinated control strategy mainly includes braking force distribution and synthetic shifting regulation for braking operations. Firstly, the vehicle model is established for investigation of the shift process during braking. Then, the braking force distribution considering energy efficiency is presented, and the regenerative braking force is calculated. With the target of maximizing energy recovery and ensuring driving comfort, an optimal shift schedule during regenerative braking is advanced based on the multi-objective cuckoo search algorithm. Due to the interaction of regenerative braking force in torque releasing and restoring process, an adaptive braking mode switching control is proposed to improve the shifting smoothness. The detailed simulations and hardware-in-the-loop validations are conducted to verify the anticipated performance of the proposed strategy.

• Record URL:
  • https://doi.org/10.1016/j.etran.2022.100188
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S2590116822000340
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/25901168
• Supplemental Notes:
  • © 2022 Elsevier B.V. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Liu, Yonggang
  • Gao, Dekun
  • Zhai, Kening
  • Huang, Qi
  • Chen, Zheng
  • 0000-0002-1634-7231
  • Zhang, Yi
• Publication Date: 2022-8

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Pagination: 100188
• Serial:
  • eTransportation
  • Volume: 13
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 2590-1168
  • Serial URL: https://www.sciencedirect.com/journal/etransportation

Subject/Index Terms

• TRT Terms: Automatic transmissions; Control systems; Electric vehicles; Gear shifting; Regenerative braking
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01852371
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 21 2022 11:42AM