BMW’s hybrid motor design seeks to deliver high efficiency and power density with lower rare earth use
Green Car Congress
AUGUST 13, 2013
Drawing from a 2012 BMW patent application showing one embodiment of a proposed method to increase the efficiency of an electric motor. The 50 kg electric motor powering the BMW i3 generates a maximum output of 125 kW for a specific power (SP) of 2.5 Source: BMW patent application Nº 2012/0267977. Click to enlarge.
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