Precise control device for acceleration/deceleration of motor

Abstract

The invention relates to a precise control device for the acceleration/deceleration of a motor. The control device comprises an information input unit, a target speed judgment unit, a target speed determination unit, a pulse distribution unit and an information output unit, wherein the information input unit is used for inputting acceleration/deceleration control information, the target speed judgment unit is used for judging whether pulses given by a user can enable the motor to accelerate to a predetermined target speed according to a predetermined curve or not in advance, the target speed determination unit is used for determining the target speed according to a judgment result of the target speed judgment unit, the pulse distribution unit is used for carrying out pulse distribution according to the predetermined curve and the target speed determined by the target speed determination unit, and the information output unit is used for outputting the pulses distributed by the pulse distribution unit to the motor. The precise control device for the acceleration/deceleration of the motor has the advantages that the calculation amount is reduced, and the problem that partial curved acceleration/deceleration cannot be realized due to overlarge calculation amount of each cycle is solved; and complete corresponding curves can also be planned in the acceleration/deceleration being incapable of reaching the target speed, and then, the problem of impact caused when the highest speed cannot be reached in the prior art is solved.

Description

technical field [0001] The invention relates to a motor control device, in particular to a precise control device for motor acceleration and deceleration. Background technique [0002] Acceleration and deceleration control is a necessary part of motion control, with the improvement of processing accuracy and processing efficiency requirements. We are required to design various complex curves for addition and subtraction control. For the acceleration and deceleration planning of complex curves, the following main methods are currently used: [0003] 1. There is no pre-planning for acceleration and deceleration, and the corresponding acceleration and deceleration design is directly carried out according to the parameters given by the user. When the number of pulses reaches but has not accelerated to the target speed, it directly decelerates and stops. Such a disadvantage is that the impact is too large when the pulse is insufficient to accelerate. Moreover, when the pulse c...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the calculation amount of each cycle is very large, and for some curves, the calculation may not be completed in one cycle

Moreover, when the pulse cannot satisfy the acceleration to the maximum speed, the curve taken is only a part of the overall curve, and there may be a large impact

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