TM4, a company in the Hydro-Quebec group, had developed an `inside
out' motor for a wheel in which the inner part stays still and the
tire moves. TM4 claims the motor is light, which reduces the problem
of unsprung weight.
The Web site is:
http://www.tech-m4.com/eng/tm4transport/moto_wheelmotor/
According to the Web site
The motor wheel uses a brushless inverted rotor configuration that
can be embedded inside a regular-size wheel. TM4 Transport's basic
motor technology results in a light, compact and highly efficient
unit. The power converters can be installed either inside or
outside of the wheels. This system permits high-precision control
and independent torque applied to each wheel while maximizing
regenerative braking capacity.
...
Motor wheel specifications in brief
Peak Power 80 kW 107 hp
Nominal Power @ 950 rpm 18.5 kW 25 hp
Peak torque 670 Nm 494 lb ft
Nominal torque @ 950 rpm 180 Nm 133 lb ft
Peak speed 1385 rpm
Max continuous speed 1235 rpm
Maximum supply voltage 500 VDC
Efficiency under continuous load @ 950 rpm 96.3 %
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Robert J. Chassell Rattlesnake Enterprises
http://www.rattlesnake.com GnuPG Key ID: 004B4AC8
http://www.teak.cc [EMAIL PROTECTED]
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