Electric machine and display method
AssigneeToshiba Kikai Kabushiki Kaisha
InventorTakamichi ITO
Life of this patent
Estimating the term…
Abstract
An electric machine according to the embodiment includes: a motor; a current controller supplying a current to the motor; a detector detecting a position, a speed, or an acceleration of a shaft of the motor; a controller calculating a torque parameter indicating a torque of the motor based on a current instruction that specifies a supply current to the motor and calculating a speed parameter indicating a rotational speed of the shaft of the motor based on a detection result from the detector; and a display part displaying a graph showing a relation between the torque parameter and the speed parameter.
Claims19
An electric machine comprising:
- a motor;
- a current controller supplying a current to the motor;
- a detector detecting a position, a speed, or an acceleration of a shaft of the motor;
- a controller calculating a torque parameter indicating a torque of the motor based on a current instruction that specifies a supply current to the motor and calculating a speed parameter indicating a rotational speed of the shaft of the motor based on a detection result from the detector;
- and
- a display part displaying a graph showing a relation between the torque parameter and the speed parameter.
A display method performed in an electric machine comprising a motor, a current controller supplying a current to the motor, a detector detecting a position, a speed, or an acceleration of a shaft of the motor, a controller transmitting a current instruction that specifies a supply current to the motor to the current controller, and a display part, the method comprising:
- causing the controller to calculate a torque parameter indicating a torque of the motor based on the current instruction that specifies a supply current to the motor;
- causing the controller to calculate a speed parameter indicating a rotational speed of the shaft of the motor based on a detection result from the detector;
- and
- causing the display part to display a graph showing a relation between the torque parameter and the speed parameter.
Dependencies are inferred from the claim text.