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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...
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...
Hybrid drive systems have become more common during the latest decade not only in passenger cars but also in heavy vehicles and work machines. The tightening diesel engine emission standards will force manufacturers of work machines to develop their systems. Hybrid drive systems have a remarkable potential to reduce the emission of diesel-engined vehicles and work machines. This paper discusses the...
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