Motor excitation signal processing method and device

A technology of excitation signal and processing method, applied in control systems, electrical components, AC motor control, etc., can solve the problems of reducing the tactile effect, damage to motor components, poor motor vibration performance, etc., to solve the tactile effect and displacement protection. Effect

Pending Publication Date: 2020-04-17
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a motor excitation signal processing method and device to solve the problems of poor vibration performance of existing motors and excessive displacement during use, thereby damaging the motor components and reducing the tactile effect

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  • Motor excitation signal processing method and device
  • Motor excitation signal processing method and device
  • Motor excitation signal processing method and device

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Embodiment 1

[0056] like figure 1 As shown, an embodiment of the present invention provides a motor excitation signal processing method, including but not limited to the following steps:

[0057] S101. Perform displacement prediction according to the original excitation signal output to the motor, and obtain the original displacement signal of the motor.

[0058]In the above step S101, the original excitation signal is a preset excitation signal. After the motor is driven by the original excitation signal, the displacement of the motor is recorded, and the above-mentioned original displacement signal can be obtained.

[0059] In specific applications, the displacement of the motor has a functional relationship with the original excitation signal, so the original displacement signal can also be predicted from the original excitation signal.

[0060] In this embodiment of the present invention, the original displacement signal can be predicted according to the transfer function of the origi...

Embodiment 2

[0101] The embodiment of the present invention provides a motor excitation signal processing device 20, including:

[0102] The displacement prediction module 21 is configured to perform displacement prediction according to the original excitation signal output to the motor, and obtain the original displacement signal of the motor;

[0103] The balanced displacement signal calculation module 22 is used to obtain the maximum displacement threshold of the motor, and calculate the balanced displacement signal according to the maximum displacement threshold and the original displacement signal;

[0104] The balanced excitation signal acquisition module 23 is used for processing the balanced displacement signal through the second-order equalizer to obtain the balanced excitation signal of the driving motor.

[0105] In the embodiment of the present invention, the displacement of the motor is controlled within the maximum displacement threshold by balancing the displacement signal c...

Embodiment 3

[0107] like image 3 As shown, the embodiment of the present invention also shows a comparison between the original displacement signal and the equalized displacement signal obtained by processing the original displacement signal using the motor excitation signal processing method provided in the first embodiment.

[0108] exist image 3 Among them, the abscissa represents the time t, in seconds (s), the ordinate represents the motor displacement value x, in meters (m), the solid line represents the equilibrium displacement signal, the dotted line represents the original displacement signal, and the dotted horizontal line represents the maximum value of the motor. Displacement threshold. image 3, the starting point displacement of the balanced displacement signal and the original displacement signal are both 0, but the maximum displacement of the original displacement signal is outside the maximum displacement threshold of the motor, and the maximum displacement of the balan...

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Abstract

The invention relates to the technical field of automatic control, and provides a motor excitation signal processing method and device. The method comprises the steps: carrying out the displacement prediction according to an original excitation signal outputted to a motor, and obtaining the original displacement signal of the motor; obtaining the maximum displacement threshold of the motor, and calculating an equalization displacement signal according to the maximum displacement threshold and the original displacement signal; and processing the equalization displacement signal through a second-order equalizer to obtain an equalization excitation signal for driving motor. The displacement of the motor can be within the maximum displacement threshold, and the problems of motor part damage and touch effect reduction caused by overlarge displacement of the motor are solved.

Description

【Technical field】 [0001] The invention relates to the technical field of automation control, and in particular, to a method and device for processing an excitation signal of a motor. 【Background technique】 [0002] With the development and popularization of various consumer electronic devices such as smart phones and smart wearables, people's requirements for tactile experience are also increasing day by day. At present, the main haptic feedback technology is realized by the linear motor (LRA) providing rich vibration, so the vibration performance of the motor has a direct and great impact on the haptic experience. [0003] However, the excitation signal of the motor is usually the excitation signal that is set uniformly by default. Therefore, when this excitation signal is used to drive the motor, the displacement may be too large, that is, the position of the motor shaft changes too much when the motor shaft rotates. When the displacement is too large, it is easy to damag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/032H02P23/14
CPCH02P25/032H02P23/14
Inventor 李涛向征郭璇
Owner AAC TECH PTE LTD
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