Effect of Extended-Speed, Constant-Power Operation of Electric Drives on the Design and Performance of EV-HEV Propulsion System

Vehicle dynamics requires extended-speed, constant-power operation from the propulsion system in order to meet the vehicle's operating constraints (e.g., initial acceleration and gradeability) with minimum power. Decrease in power rating will decrease the volume of the energy storage system. However, extending the constant power operating range of the electric drives increases its rated torque, thereby, increasing motor volume and weight. This paper investigates the effect of extended constant power operation on battery driven electric vehicle (BEV) propulsion system taking the change in motor weight and battery volume into account. Five BEV systems with five traction drive having different base speeds are simulated for this study. The performances of the BEVs are obtained using FUDS and HWYFET drive cycles. Two EV-HEV software packages ‘V-ELPH’ developed by Texas A&M University and ‘ADVISOR’ from NREL are used for simulation testing. Based on the simulation results, the paper defines an optimum range of the constant power region for single gear operation.

• Record URL:
  • https://doi.org/10.4271/2000-01-1557
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Rahman, Z
  • BUTLER, K
  • EHSANI, M
• Conference:
  • Future Car Congress
  • Location: Crystal City Virginia, United States
  • Date: 2000-4-2 to 2000-4-6
• Publication Date: 2000-4-2

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Electric drives; Electric vehicles; Energy storage systems
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01796101
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2000-01-1557
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:18AM