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This paper investigates the impact of downsizing induction motors for battery-electrical-vehicles (BEV). With three electrical torque equations based on stator current, stator voltage and stator flux density, we display the overload potential of an induction motor. The traditional efficiency map of an induction motor is extended by a so-called overload-area. An algorithm for sizing an induction motor...
This paper offers a systematic approach to the analysis of the stator resistance's influence on the operational forecast or efficiency calculation of permanent synchronous machines. For this purpose, the voltage equation in the (d, q)-reference frame is decomposed in components that can be represented as phasors. Relations for minimum and maximum influence of the stator resistance can be derived in...
In this paper a comparison between existing and upcoming legislative emission test cycles and real-life driving data is made. The aim of this publication is to analyze how realistic the cycles and how reliable their results are, regarding the engine load and respectively the fuel consumption.
In this paper a method is presented which allows to analytically calculate the Maximum-Torque-Per-Voltage (MTPV) hyperbola including the stator resistance. The method relies on a transformation of the voltage ellipse (voltage constraint) to its principle axis system. Re-formulating the optimization problem in this new coordinates of the principle axis system simplifies the derivation of the analytical...
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