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Control method, control device, equipment and medium for linear motor

A technology of a linear motor and a control method, applied in the fields of equipment and media, a control method of a linear motor, and a control device, can solve the problem that the linear motor is difficult to accurately control the acceleration response time and the like

Pending Publication Date: 2022-01-14
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a linear motor control method, control device, equipment and medium, aiming to solve the problem that the linear motor is difficult to accurately control the response time of acceleration

Method used

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  • Control method, control device, equipment and medium for linear motor
  • Control method, control device, equipment and medium for linear motor
  • Control method, control device, equipment and medium for linear motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0153] Example 1: Setting the steady-state amplitude a ref =700m / s 2 , t rd Unlimited, that is, no rise time is set.

Embodiment 2

[0154] Example 2: Setting the steady-state amplitude a ref =700m / s 2 , t rd =0.01s, that is, the rising time is set to 0.01s.

Embodiment 3

[0155] Example 3: Setting the steady-state amplitude a ref =700m / s 2 , t rd =0.12s, that is, set the rising time to 0.12s.

[0156] refer to image 3 , image 3 The acceleration response waveforms of Embodiment 1 to Embodiment 3 above are shown. refer to Figure 4 , Figure 4 The actual control voltage waveforms of Embodiment 1 to Embodiment 3 above are shown.

[0157] It is not difficult to see that especially in Example 2, the response time is the shortest. Compared with the characteristics of the linear motor before adjustment, it starts faster, has no tailing, and has a crisper vibration. It can be seen that the amplitude and response time of the acceleration are consistent with the set amplitude and time.

[0158] Based on the same inventive concept, see Figure 5 , the present invention also provides a control device for a linear motor, comprising:

[0159] A parameter acquisition module, configured to acquire the current speed of the vibrator of the linear mot...

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Abstract

The invention discloses a control method, a control device, equipment and a medium for a linear motor, which belong to the technical field of linear motors. The method comprises the steps of obtaining the current speed, the driving voltage and the response time of the target acceleration of an oscillator of the linear motor, obtaining a damping adjustment coefficient based on the response time and hardware parameters of the linear motor, obtaining a target compensation voltage based on the current speed of the vibrator and the damping adjustment coefficient, obtaining an actual driving voltage based on the driving voltage and the target compensation voltage, and controlling the linear motor to vibrate based on the actual driving voltage. By adopting the control method provided by the invention, the response time of the acceleration of the linear motor can be accurately adjusted.

Description

technical field [0001] The present invention relates to the technical field of linear motors, in particular to a control method, a control device, equipment and a medium of a linear motor. Background technique [0002] Linear Resonant Actuator (LRA) has been widely used in various vibration occasions of electronic equipment due to its advantages of strong vibration, richness, crispness and low energy consumption. For the application of electronic equipment, by constructing a variety of broadband vibration waveforms (acceleration waveforms), linear motors can achieve very rich and realistic vibration feedback. [0003] Among them, the vibration of the linear motor is mainly achieved by driving the vibrator to generate acceleration. The faster the acceleration response, the crisper the vibration; the larger the acceleration amplitude, the stronger the vibration. In the actual control process, it is usually necessary to adjust the acceleration response time according to the ne...

Claims

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Application Information

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IPC IPC(8): H02P23/14H02P23/20H02P25/06
CPCH02P23/14H02P23/20H02P25/06
Inventor 刘兵刘钰佳杨鑫峰
Owner GOERTEK INC
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