Dual-closed loop structure is adopted in main thrust motor and rudder motors, and PI controller is implemented by DSP software.
对主推进电机和舵电机的控制采用了双闭环结构，PI调节器由DSP软件实现。
2
This system with brushless DC motor (BLDCM for short) as its drive adopts three-loop control strategy to achieve the aim at high accuracy position trail of rudder.
该系统以无刷直流电机作为伺服电机，采用三闭环的控制策略，实现舵面位置的高性能跟踪。
3
Motor boats in those days didn't have clutches, and you would make a landing by shutting off the motor at the proper time and coasting in with a dead rudder.