Motor driving method and system

Abstract

The invention provides a motor driving method and system, comprising: obtaining the motion parameters of the motor and the drive signal of the motor, the motion parameters including the motion speed, the number of motion steps and the motion direction; determining the target of the sine meter drive unit based on the motion speed of the motor Subdivision gear, or determine the target subdivision gear of the sine meter drive unit based on the speed of motion of the drive signal and the motor; determine the number of moving steps of the table item in the sine meter drive unit based on the target subdivision gear and the number of motion steps, and Determine the moving direction and moving speed of the table item in the sine table drive unit based on the motion direction and speed; get the rotation angle of the motor based on the movement steps of the table item in the sine table drive unit and based on the moving direction of the table item in the sine table drive unit A target rotation direction of the motor is determined, so as to control the motor to rotate toward the target rotation direction at a rotation angle. The invention solves the problem that the motor is out of step due to insufficient torque in a high-speed or low-temperature environment.

Description

technical field [0001] The invention relates to the field of motor drive, in particular to a motor drive method and system. Background technique [0002] A stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. In the case of non-overload, the speed and stop position of the motor only depend on the frequency and number of pulses of the pulse signal, and are not affected by the load. The influence of changes, when the stepper driver receives a pulse signal, it will drive the stepper motor to rotate a fixed angle in the set direction, called "step angle", and its rotation is to run step by step at a fixed angle Yes, the angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency, so as to achieve the purpose of sp...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a motor driving method and system to solve the problem that the motor is out of step due to insufficient torque in a high-speed or low-temperature environment, and to solve the problem of vibration when the motor is moving at a low speed

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