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GE prototype delivers higher power density, acceleration, and energy
efficiency in a smaller frame at a lower cost
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Motor extends the range of electric vehicles and reduces fuel
consumption on hybrids
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Motor has almost twice the temperature tolerance of conventional
hybrid-electric motors and does not require a separate cooling system
(July 27, 2012) Engineers at GE Global Research are advancing
motor technology that could have a substantial impact on hybrid and electric
vehicles (EVs) of the future.
GE recently tested a prototype
Interior Permanent Magnet traction motor, developed as part of a $5.6MM U.S.
Dept. of Energy (DoE) project, that could help extend the range EVs and hybrids
can travel before recharging or needing gasoline. Traction motors are the key
part of the propulsion system that converts electrical energy into motion to
drive hybrid and electric vehicles. Not only is the GE-designed motor less
costly to make, lab testing revealed that it is more powerful and more
efficient than what is on the market today. Combined, the additional power
output and efficiency will help extend the range of EVs and delay the point at
which hybrids switch to gasoline.
GE’s prototype traction motor
operates at a peak power level of 55kW and exceeds state-of-the-art motors in
the same class in several key areas: