An induction machine is used to drive an olectric vehicle via a mechanical transmission with a gear ratio of 1:12 and efficiency of 0.95. The radius of the traction wheels is 0.28 m. If the total required traction force on the two wheels is 3,527 N, the motor torque is

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An induction machine is used to drive an electric vehicle via a mechanical transmission with a gear ratio of 1:12 and efficiency of 0.95. The radius of
the traction wheels is 0.28 m. If the total required traction force on the two wheels is 3,527 N, the motor torque is
Transcribed Image Text:An induction machine is used to drive an electric vehicle via a mechanical transmission with a gear ratio of 1:12 and efficiency of 0.95. The radius of the traction wheels is 0.28 m. If the total required traction force on the two wheels is 3,527 N, the motor torque is
A synchronous permanent magnet machine is used to drive an electric vehicle of 1400kg via a mechanical transmission with a gear ratio of 1:12 and
efficiency of 0.95. The radius of the traction wheels is 0.29 m. The rolling frictional coefficient of the wheels is 0.1N/(kg.m.s-2) and gravitational
acceleration is 9.8 m/s2. If the motor peak torque is 249NM, the maximum acceleration of the vehicle at standstill on a road with 5 degrees uphill
gradient is
Transcribed Image Text:A synchronous permanent magnet machine is used to drive an electric vehicle of 1400kg via a mechanical transmission with a gear ratio of 1:12 and efficiency of 0.95. The radius of the traction wheels is 0.29 m. The rolling frictional coefficient of the wheels is 0.1N/(kg.m.s-2) and gravitational acceleration is 9.8 m/s2. If the motor peak torque is 249NM, the maximum acceleration of the vehicle at standstill on a road with 5 degrees uphill gradient is
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