| TORQUE CHARACTERISTICS ANALYSIS FOR OPTIMAL DESIGN OF A COPPER-LAYERED EDDY CURRENT BRAKE SYSTEM |
| S. ANWAR1, R. C. STEVENSON2 |
1Purdue University Indianapolis
2Automotive Component Holdings |
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| ABSTRACT |
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An enhanced parametric model for a copper-layered eddy current electric machine (retarder) is introduced in this paper. The modeled torque characteristics of the copper-layered electromagnetic retarders are based on the results from a detailed electromagnetic finite element analysis (FEA) of these eddy current machines. The model uses a parameterized double-exponential function to model the steady state speed-torque characteristics of the retarder. The parameters are adjusted for optimal braking performance in conjunction with predicted speed-torque characteristics of a copper?layered retarder. A full vehicle model, along with the proposed retarder speed-torque model has been used to simulate a series braking events. The simulation results show that the peaks of the retarder speed-torque curves must be designed to occur within a specific range of speeds for optimal braking performance. |
| Key Words:
Eddy current brake (ECB), Finite element analysis, Copper layered ECB, Vehicle model |
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