Integrated Traction Drive Thermal Management: Keystone Project 3

Research output: NRELPresentation


The presentation represents a report of accomplishments during FY 2022 and is prepared for 2022 DOE VTO Annual Merit Review. The project goal is facilitation of achieving DOE 2025 target of 33 kW/L system power density for an electric traction drive through support of other EDT consortium members in design and development of thermal management systems for their respective integrated drive concepts. Namely, identifying pathways enabling high-performance, compact, and reliable integrated electric drives. Specific objectives are: 1) Research and evaluation of motor-integrated power electronics packaging technologies and thermal management approaches. 2) Development of thermal management system and its sub-components to enable integrated electric drive DOE power density targets in collaboration with project partners. 3) Supporting activities of DOE's Electric Drive Technologies (EDT) consortium members, Oak Ridge National Laboratory (ORNL) and University of Wisconsin research teams in thermal management component design and thermal modeling of their integrated traction drives. 4) Identifying candidate driveline fluids suitable for direct cooling of traction-drive components and high-voltage power electronics and evaluate their convective cooling performance.
Original languageAmerican English
Number of pages19
StatePublished - 2022

Publication series

NamePresented at the 2022 Vehicle Technologies Office Annual Merit Review, 21-23 June 2022, Washington, D.C.

NREL Publication Number

  • NREL/PR-5400-82653


  • automatic transmission
  • cooling
  • electric motor cooling
  • electric vehicles
  • fluid
  • impingement
  • integrated power electronics
  • jet
  • power electronics cooling


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