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In the Pyrénées during Phébus
Arriving in Cité de lespace of Toulouse
Solelhada, is a solar vehicle designed in ENSEEIHT-INP
of Toulouse, specially in the LEEI - CNRS, a power electronics
research laboratory, with the aim of running in the World Solar Challenge
in Australia, prestigious international race of solar vehicles. It profits
particularly from the supports of the Conseil Régional de Midi Pyrénées,
the Conseil Général des Hautes Pyrénées, the
Ministry for Research and the CNRS.
|Un défi international
Through Australia, 2001 Solar Odyssey
Crossing Australia from Darwin to Adelaïde, over 3000 km, as fast
as possible while only using solar radiation is a true big challenge.
Even with 8m2 of high performance solar panels, the power rarely reaches
1500W, the power of an hair drier; and hardly more than 10 kWh of electric
energy is collected during a day, that is to say one liter-equivalent-gasoline
to run several hundred kms. Such a performance requires an essential quality
: the energy sobriety, which requires advanced technologies for
every component : structure, aerodynamics, engine, and energy treatment
The body of SOLELHADA has been developed in collaboration between
the LEEI searchers, teachers and students of ENSEEIHT and ENSICA engineer
schools, and PROTOPLANE and AXSON companies. It is optimised for the WSC
: its shape is a good compromise in order to collect solar light with
good aerodynamics (SCx #0.17m2). All made with composite materials, it
weighs only 56 kg.
The front wheel motor
The front wheel motor, a permanent magnets brushless motor, was
especially designed at the LEEI - CNRS for the solar vehicle traction.
With an efficiency reaching 95% this wheel motor avoids the losses due
to a traditional transmission.
A nice performance during Solar Odyssey 2001
Thanks to the supports of many partners, SOLELHADA took the departure
of the WSC on November 18, 2001 and held its promises. Classified 3°
in the "lead-acid battery" category and 22° in general,
it ran across Australia over 3000 km into 50 hours, with the average speed
of 60 km/h, consuming an electric energy of 46 kWh drawn from the solar
radiation, equivalent to that of 6 liters of gasoline on the whole, that
is to say the equivalent of 0,2 liter per 100 km; a nice performance
As a symbolic link between transport systems and renewable energies, Solelhada
arouses public curiosity and interest on the roads (during WSC 2001, Phébus
Rallys, Challenge Bibendum) or when exhibited in scientific shows. Carrier
of dream by its societical dealing, it shows in such its way, the potential
of New Energy Technologies for a Sustainable Development which will require
a true better energy management.