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Motor acceleration and deceleration control method and three-dimensional pipette device

A technology of acceleration and deceleration control and controller, which is applied in the direction of single motor speed/torque control, motor generator control, control system, etc., and can solve problems such as difficult control of saving time, difficult adjustment of control parameters, and complicated control methods

Active Publication Date: 2017-05-31
GUANGDONG SHUNDE IND DESIGN INST GUANGDONG SHUNDE INNOVATIVE DESIGN INST
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Problems solved by technology

[0003] The traditional method of controlling the acceleration and deceleration of the motor is to use the closed-loop PID (Proportion Integral Differential) control method. After calculating the difference between the set value and the actual value by proportional, integral and differential methods, the The result feedback is used for control, the control parameters are difficult to adjust, and the adjustment time is difficult to control, so the control method is complicated

Method used

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  • Motor acceleration and deceleration control method and three-dimensional pipette device
  • Motor acceleration and deceleration control method and three-dimensional pipette device
  • Motor acceleration and deceleration control method and three-dimensional pipette device

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Embodiment Construction

[0027] refer to figure 1 , the motor acceleration and deceleration control method in one embodiment includes the following steps.

[0028] S110: Obtain a target speed parameter and a target movement distance, and obtain a target pulse number corresponding to the target movement distance according to the target movement distance and a preset relationship function.

[0029] The target speed parameter refers to the speed parameter corresponding to the maximum speed that can be achieved by setting the motor; for example, if the motor is a brushless DC motor, the target speed parameter can be the set maximum duty cycle; if the motor is a stepper motor, Then the target speed parameter can be the set maximum frequency. The target movement distance refers to the distance that the motor needs to move to drive the connected mechanical mobile equipment. For example, in order to achieve a certain function, the mechanical mobile equipment needs to move A mm under the driving of the motor,...

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Abstract

The invention relates to a motor acceleration and deceleration control method and a three-dimensional pipette device. The motor acceleration and deceleration control method comprises the following steps: a target speed parameter and a target moving distance are acquired, and a target pulse number is obtained according to the target moving distance and a preset relation function; a motion control mode of a motor is acquired according to the target pulse number, the target speed parameter, a preset speed parameter array curve and a pulse number array curve; the current pulse number corresponding to motor operation is read; if the motion control mode contains a constant speed mode, the motor is controlled to be accelerated to the speed corresponding to the target speed parameter, operate constantly at the speed corresponding to the target speed parameter and finally be decelerated to operate to a preset lowest speed; if the motion control mode does not contain the constant speed mode, the motor is controlled to perform accelerated operation and then perform decelerated operation to the preset lowest speed. Therefore, the control way is simple, easy to implement and high in precision.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a motor acceleration and deceleration control method and a three-dimensional pipetting device. Background technique [0002] As the power source of various electrical equipment, the motor's speed is usually used as a measure of functional performance. For example, when a motor is used in a mechanically mobile device (such as a three-dimensional pipetting device), the higher the motor speed, the faster the moving speed of the mechanical mobile device, and the lower the motor speed, the slower the moving speed of the mechanical mobile device. The speed of the motor is controlled by the motor drive device, and during the working process of some electrical equipment, it may be necessary to adjust the acceleration and deceleration of the motor in time. [0003] The traditional method of controlling the acceleration and deceleration of the motor is to use the closed-loop ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/08H02P8/14
CPCH02P6/08H02P8/14
Inventor 何关金刘经龙关沛峰
Owner GUANGDONG SHUNDE IND DESIGN INST GUANGDONG SHUNDE INNOVATIVE DESIGN INST
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