Direct torque control is a method used to control AC motors.
It had a single main rotor, torque control was through a movable duct at the end of the tailboom.
Thus direct torque control is one form of the hysteresis or bang-bang control.
Newer models have the advantages of increased flexibility and torque control.
MX64/MX-106 have current based torque control and PID control gain features.
At the top end is the PC580 RCP, featuring the same motor, but with variable speed, reverse action and torque control.
Variable-frequency drives (also known as solid-state inverters) are used to provide precise speed and torque control of three-phase motors.
The electrical circuit for torque control was also modified.
Some users , however, maintain that such wrenches reduce torque control and the feedback available to the user.
Programmable controllers are widely used in motion control, positioning control and torque control.