TY - GEN
T1 - Design and operation of a thermal harshness test facility for electric motors in hermetic environments
AU - Lawrence, Neal
AU - Elbel, Stefan
N1 - Publisher Copyright:
© 2019 International Institute of Refrigeration. All rights reserved.
PY - 2019
Y1 - 2019
N2 - This paper discusses the design of a test rig used to simulate thermal cycling of drive motor components immersed in transmission fluid used in hybrid electric vehicles. Unique challenges are encountered in this thermal test due the extreme change in viscosity of the fluid between high and low temperature (150°C and -20°C, respectively) as well as the need to simulate powering of the components while undergoing cycling. Addressing the unique challenges requires specific attention to refrigeration system design and control, heat exchanger selection and configuration, fluid pump selection and control, and electrical powering of the motor components. The paper provides details of the test rig and discusses the challenges encountered and specific solutions implemented, with the objective of providing a useful insight for the design of other test rigs for temperature cycling with high-viscosity fluids, especially for the testing of hybrid electric vehicle components.
AB - This paper discusses the design of a test rig used to simulate thermal cycling of drive motor components immersed in transmission fluid used in hybrid electric vehicles. Unique challenges are encountered in this thermal test due the extreme change in viscosity of the fluid between high and low temperature (150°C and -20°C, respectively) as well as the need to simulate powering of the components while undergoing cycling. Addressing the unique challenges requires specific attention to refrigeration system design and control, heat exchanger selection and configuration, fluid pump selection and control, and electrical powering of the motor components. The paper provides details of the test rig and discusses the challenges encountered and specific solutions implemented, with the objective of providing a useful insight for the design of other test rigs for temperature cycling with high-viscosity fluids, especially for the testing of hybrid electric vehicle components.
KW - Electric vehicle components
KW - Harshness testing
KW - Heat exchanger configuration
KW - Pump selection
KW - System design
KW - Thermal cycling
UR - http://www.scopus.com/inward/record.url?scp=85082690185&partnerID=8YFLogxK
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U2 - 10.18462/iir.icr.2019.0353
DO - 10.18462/iir.icr.2019.0353
M3 - Conference contribution
AN - SCOPUS:85082690185
T3 - Refrigeration Science and Technology
SP - 755
EP - 762
BT - ICR 2019 - 25th IIR International Congress of Refrigeration
A2 - Minea, Vasile
PB - International Institute of Refrigeration
T2 - 25th IIR International Congress of Refrigeration, ICR 2019
Y2 - 24 August 2019 through 30 August 2019
ER -