Motivation•The AHPV from VDS 1.0 used an expensive, NGM electric hub motor, costing roughly $8000. (picture on right)•VDS 1.0 required a new electric hub motor to serve as both a replacement for the NGM motor, and as a stepping stone design for VDS 2.0.
Requirements (Preliminary)•10 kW continuous Power•90%+ efficiency optimized for 45 miles an hour.•Motor weight less than 30 kg•Must interface with EV-C200 controller•Acceleration from 0-60 mph in less than 15 s.•Solar/Battery power must be used•Constant Torque with speed variation
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Constraints•Motor must fit between wheel and suspension arm, not interfere with other components•Motor cannot draw more power then controller can supply•Torque must not surpass limit of suspension arm bolt hole