Title :
Thermal characterization of an axle-twin-drive with system integrated double-inverter
Author :
Hofmann, M. ; Eckardt, B. ; Marz, M. ; Frey, L.
Author_Institution :
Fraunhofer Inst. of Integrated Syst. & Device Technol., Erlangen, Germany
Abstract :
Integrated drive-units for electric vehicles (EV) with combined electric machines and power electronic components offer the chance to achieve compact and cost-optimized traction systems. The demand for high power-densities and the requirement of a reliable system operation lead to the necessity of an enhanced thermal management. In the present paper, the build-up of an integrated drive-unit with 2×20 kW is described. A thermal simulation model of the used traction machines, based on Cauer-networks and parameterized with FEM-simulations and measurements, allows an analysis of transient temperature profiles for various driving situations as well as a determination of internal temperatures.
Keywords :
electric drives; electric vehicles; finite element analysis; invertors; thermal analysis; traction; Cauer networks; FEM-simulations; axle-twin-drive; cost-optimized traction systems; electric machines; electric vehicles; enhanced thermal management; integrated drive-units; power electronic components; power-density; system integrated double-inverter; thermal characterization; thermal simulation model; traction machines; transient temperature profile analysis; Capacitors; Coolants; Extraterrestrial measurements; Heat transfer; Heating; Insulated gate bipolar transistors; Reliability; Compact double-inverter technology; integrated individual axle-drive; thermal modeling with lumped RC-elements; transient thermal analysis of drive-unit;
Conference_Titel :
Electric Drives Production Conference (EDPC), 2011 1st International
Conference_Location :
Nuremberg
Print_ISBN :
978-1-4577-1371-2
DOI :
10.1109/EDPC.2011.6085560
