| 摘要 |
An electric motor control system comprises a controller 100 having a temperature signal input to receive a temperature signal indicating the temperature of a component (e.g. coil 10, coil switch 80 or permanent magnet 11) of the motor 1 from temperature sensors 12, 14, 82. The controller has an output to control the torque provided by the electric motor. When the temperature is above a threshold value the controller varies the maximum torque that may be delivered by the motor as a continuous function of the temperature indicated by the temperature signal from the component. The electric motor may be used in an electric vehicle, particularly where the motor is mounted within the wheel of the vehicle. |
