Motor control and motion control
In the above definition, motor control is mentioned, but motor control and motion control are different.
From a point of view, motor control (here, servo motor) is mainly concerned with controlling one or more parameters of the torque, speed, and position of a single motor to a given value. The main focus of motion control is to coordinate multiple motors, complete the specified motion (synthesis trajectory, synthesis speed), and focus on trajectory planning, speed planning, and kinematics conversion; for example, the CNC machine tool should coordinate the XYZ axis motor and complete the interpolation action. .
Motor control is often used as a part of the motion control system (usually current loop, working in torque mode), more emphasis on motor control, generally including three control loops of position control, speed control, torque control, generally no planning The ability (some drives have simple position and speed planning capabilities).
Motion control is often for the product, including mechanical, software, electrical and other modules, such as robots, drones, sports platforms, etc., is the real-time control and management of the position and speed of mechanical moving parts, so that they A control of the expected motion trajectory and the specified motion parameters for motion.
Part of the two is coincident: the position loop / speed loop / torque loop can be implemented in the drive of the motor, or in the motion controller, so the two are easily confused.
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