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This
is a solar car... but not just any solar car...
Most solar cars are burdened down with
weight. But this car has overcome that problem with a lightweight
electric motor that actually fits snugly inside one its wheels.
When scientists from CSIRO were asked
to be involved in the design of a drive motor for a new solar car,
they came up with something totally different, an axial flux motor
with an aluminum structure that gives the lightest possible weight
for the highest power output and efficiency.
The motor is nearly half the weight
of other motors which generate the same output.
Road tested, the car demonstrated that
its single front wheel drive motor could pull it along at speeds
of above 110 kilometres an hour.
Scientists hope that the car of the
future could run on these sunlight powered motors embedded in its
wheels.
"This motor is high torque, extremely efficient and lightweight.
We are very pleased with its performance in the solar car and, with
some adaptation, this motor can be used for many other applications."
The motor magnets are made from a compound
containing a rare-earth element, readily available in Australia,
as is the aluminum used for the motors structure.
This means that when solar powered
travel becomes a major form of transport, Australia will be well
placed to be both a supplier to the world of the raw materials and
of the technology itself.
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