Sensitivity Analysis of Traction Drive Motor Cooling

Kevin Bennion, Justin Cousineau

Research output: Contribution to conferencePaperpeer-review

21 Scopus Citations


Electric motor cooling affects the power capability of electric motors, which has direct impacts on power density and cost. In this paper we present a sensitivity study of factors associated with electric motor thermal management specific to electrified vehicle propulsion applications. Thermal models of two electric motor configurations were developed and validated against available test data. Once confidence was established in the thermal models, a sensitivity analysis was performed over a range of thermal management control factors. These factors included heat transfer coefficients, cooling locations, material orthotropic thermal conductivity properties, heat distributions, and interface contact resistances. The work helps prioritize future research efforts to improve motor thermal management.

Original languageAmerican English
Number of pages6
StatePublished - 2012
Event2012 IEEE Transportation Electrification Conference and Expo, ITEC 2012 - Dearborn, MI, United States
Duration: 18 Jun 201220 Jun 2012


Conference2012 IEEE Transportation Electrification Conference and Expo, ITEC 2012
Country/TerritoryUnited States
CityDearborn, MI

NREL Publication Number

  • NREL/CP-5400-54651


  • design variations
  • electric motor
  • motor confguration
  • thermal analysis
  • thermal management


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