September 15, 2002 – Vol.7 No.25
HIGH PERFORMANCE ELECTRIC DRIVE.
There’s one thing in common with battery electric, hybrid and fuel cell vehicles. They all have an electric motor to propel the vehicle - fully or in part. And with a statement similar to one in the above story - the better the performance of the electric drive motor, the better the performance of the hybrid, fuel cell or electric vehicle.
UQM Technologies has announced a new breakthrough in the performance of electric drive motors - high torque for start-up combined with high motor speed needed for cruising. The company claims it has a permanent magnet electric motor system that achieves a 10 to 1 constant power speed ratio (CPSR) - the constant power top rotational speed is ten times the base rotational speed. The company claims the motor outperforms the industry’s best performing motors by a factor of two
Aside from better acceleration from a standing start, a less complex vehicle gearbox would be needed with the motor technology with should help reduce costs. The technology will be adaptable to wide range of electric drive motors.
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