GoldenMotor.com Forum
General Category => General Discussions => Topic started by: Who42 on March 11, 2011, 11:30:07 AM
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Solar cars use CSIRO motor Link http://www.csiro.au/resources/pf11g.html#design (http://www.csiro.au/resources/pf11g.html#design) ::)
is a similar lay out to Golden printed Motor :-*
This BLDC motor achieves 98 per cent efficiency at 1800w and is generally accepted as the most efficient in solar car racing. It has a low active component weight (6 kg), and a total wheel weight of 14.5 kg (including the tyre). with a top speed of around 110kl/h
In-wheel motors used by other teams typically had energy efficiency less than 95 per cent and weighed twice as much -- not including the wheel and tyre.
Pricing information
This one-page document details pricing and conditions for purchasing a solar car motor kit. The price of a single kit is around A$12 000.
Specifications pdf link http://www.ata.org.au/wp-content/uploads/marand_high_efficiency_motor.pdf (http://www.ata.org.au/wp-content/uploads/marand_high_efficiency_motor.pdf)
Number of poles 40
Number of phases 3
Approximate weight of frameless (kg) 10.9
Nominal speed (rad/s)2 111
Nominal torque (Nm)3 16.2
Maximum continuous torque at 111 rad/s (Nm)4 31
Magnetic gap – each side (mm) 2
Phase resistance (?) 0.0757
EMF constant – L-N RMS EMF/speed (Vs/rad)5 0.39
Torque constant per phase (Nm/A)6 0.39
Performance at nominal rating1
L-N RMS EMF (V)5 43
RMS phase current (A)6 13.9
Copper loss (W) 43.9
Eddy current loss (W) 2.6
Windage (W)7 2.1
Total loss (W) 48.6
Output power (W) 1800
Efficiency (%) 97.4
Winding, temperature, rise (K) 22
Overload, winding, temperature, rise (K)8 64
Absolute maximum ratings1
Maximum, winding, temperature (K) 383
Maximum speed (rad/s) 300
Maximum torque (Nm) 50.2
3 × 100 ?H Inductors 9
Notes