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Fractional Slot Concentrated Winding (FSCW) Interior Permanent Magnet (IPM) synchronous motors are nowadays an attractive solution in automotive applications due to their important advantages in terms of high performance and manufacturing simplicity. Among the different topologies, the spoke type is an effective configuration when high torque density is required. On the other hand, the motor performance...
The paper assesses the influence of driving cycles on the design optimizations of permanent magnet machines for electric vehicle traction applications with the objective to minimize total loss over a defined driving cycle while satisfying performance specifications and design constraints. With the help of an efficient optimization methodology and tool, the optimizations against New European Drive...
The design choices that affect the performance and cost of non-overlapping concentrated-coil permanent magnet machines for EV hub drives are investigated. It is shown that the torque per I2R copper loss performance of the machine cannot be judged on the winding factor of the machine. Wide open stator slot machines with rectangular preformed coils and, thus, low manufacturing costs perform surprisingly...
This paper examines the influence of lamination material on the performance of a flux focusing permanent magnet machine. This machine is designed for the traction of hybrid vehicles. The design optimization is performed by coupling a multi-objective particle swarm optimization algorithm with the finite element method. The optimization procedure is performed for three different lamination materials...
The technology using the permanent-magnet vernier machine (PMVM) in electric vehicle (EV) to improve torque density and field-weakening performance is presented. The gap flux density analysis indicates that the torque is was produced both by fundamental and harmonic component of the field. Based on the analysis of the relationship investigations between the torque and structure parameters, the structure...
For propulsion of electro and hybride vehicles basically 3 different motors are used: induction machine (IM), permanent synchronous machine (PM) or switched reluctance machine (SR). To analyse and compare these types of machines three electrically powered go-karts were buildt at Daimler Chrysler AG Stuttgart plant 10. These e-go-karts have the same configuration regarding batteries, power inverter,...
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