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In-wheel switched reluctance motors (SRMs) have been applied to electric vehicles (EVs) for direct drive to eliminate the transmission loss, due to its feature of low cost, fault tolerance, wide speed range, simple and robust structure [1–2].
By using the powder metallurgy technology and magnetic isotropy characteristic of the soft magnetic composite (SMC) material, various kinds of the complex structure permanent magnet synchronous machines (PMSMs) can be designed and fabricated easily e.g., axial-flux machine, claw pole machine (CPM) and transverse-flux machine (TFM) [1]-[4]. With the global coil applied in the CPM and TFM, the CPM and...
Soft magnetic composite (SMC) material is a relative new soft magnetic material which has undergone the substantial development during last decades. Especially with the low-pressure pressing on the mold, the magnetic core with SMC of the machine can be fabricated easily and the manufacture cost can be reduced greatly. By using this technology, a claw pole machine (CPM) with SMC core was designed and...
In this work, several topology structures and dimension parameters are investigated for a FSPMM with 12 stator poles to achieve minimal performance required by the drive system in the 2010 Toyota Prius hybrid electric vehicle (HEV). Four different pole numbers are proposed for the rotor part, namely 10, 11, 13 and 14. Form the discussion, it can be seen that the optimal rotor topology is the one with...
With the great concerns on alleviating the pollution on the environment and traffic congestions; there is a trend for developing the electric vehicles [1], [2]. For such drive system, the in-wheel machines draw the main attention due to its relative higher torque density and compact structure [1]. With the permanent magnet (PM) located on the stator teeth, the flux switching permanent magnet machine...
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