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Device for realizing expected damping force of magneto-rheological damper and method

A magneto-rheological damper and damping force technology, which is applied in the direction of spring/shock absorber, vibration suppression adjustment, mechanical equipment, etc., can solve the problems of low control precision and inability to accurately describe the dynamic behavior of magnetorheological damper, etc. Achieve low cost and improve the effect of open-loop control

Active Publication Date: 2021-03-26
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dynamic inverse model of the magnetorheological damper commonly used in open-loop control usually cannot accurately describe the dynamic behavior of the magnetorheological damper at different frequencies, so that the control accuracy is low

Method used

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  • Device for realizing expected damping force of magneto-rheological damper and method
  • Device for realizing expected damping force of magneto-rheological damper and method
  • Device for realizing expected damping force of magneto-rheological damper and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] see Figure 1 to Figure 3 , the device for realizing the expected damping force of the magnetorheological damper, including the mounting bracket, the damper 1 and the control unit.

[0074] The damper 1 applies a damping force to the actuating head 22 .

[0075] The damper 1 is a magnetorheological damper.

[0076] The installation bracket includes a frame, an installation base 21 , an actuating head 22 , an excitation platform 23 , a fixing bracket 24 , a swing arm 25 , a connecting rod 26 and a fixing piece 27 .

[0077] The framework is carried on the excitation platform 23 .

[0078] The piston rod of the damper 1 is fixed on the top of the frame.

[0079] The frame includes beams 281 and two columns 282 .

[0080] One ends of the two columns 282 are respectively fixed on the excitation platform 23 , and the other ends are fixedly connected by a beam 281 .

[0081] One of the columns 282 is fixedly connected with the fixed bracket 24 .

[0082] The mounting ba...

Embodiment 2

[0126] A device for realizing the desired damping force of the magneto-rheological damper, including a mounting bracket, a damper 1 and a control unit;

[0127] The damper 1 applies a damping force to the actuating head 22;

[0128] The mounting bracket includes a frame, a mounting base 21, an actuating head 22, an excitation platform 23, a fixed bracket 24, a swing arm 25, a connecting rod 26 and a fixing piece 27;

[0129] The framework is carried on the incentive platform 23;

[0130] The piston rod of the damper 1 is fixed on the top of the frame;

[0131] The mounting base 21 fixes the piston cylinder of the damper 1;

[0132] The mounting base 21 is fixed on the actuating head 22;

[0133] The actuating head 22 is carried on the excitation platform 23;

[0134] The vibration of the actuating head 10 can be compared to the excitation from the road surface that the suspension damper of the automobile is subjected to

[0135] The excitation platform 23 applies external...

Embodiment 3

[0149] The device for realizing the desired damping force of the magneto-rheological damper, the main structure is shown in Embodiment 2, wherein the current driver 35 is a tripolar full-bridge current driver.

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PUM

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Abstract

The invention discloses a device for realizing expected damping force of magneto-rheological damper and a method. The device comprises a mounting bracket, the damper (1) and a control unit, The methodcomprises the following steps that (1) an expected output current value I is calculated; and (2) a microcontroller sends a control signal to a current driver according to the expected current value I, after the control signal is received, the current driver outputs current to a coil of the damper, so that the current value of the coil of the damper is equal to the expected current value I, and the damper outputs expected damping force F to an actuating head. According to the motion state of the magneto-rheological damper and the expected damping force, the current with the proper magnitude can be conveyed to the coil of the magneto-rheological damper, so that the function that the actual damping force follows the expected damping force is achieved.

Description

technical field [0001] The invention relates to the field of control of magneto-rheological dampers, in particular to a device and method for realizing the expected damping force of the magneto-rheological damper. Background technique [0002] Magneto-rheological dampers, as intelligent actuators, have received extensive attention in the fields of automobiles and construction. The control process of the magnetorheological damper is usually based on the motion state of the damper, through a certain function-oriented control algorithm to obtain the desired damping force, and then use the open-loop or closed-loop control method to achieve the desired damping force. It can be seen that realizing the desired damping force is a key part of the control of the magnetorheological damper. In terms of control methods, open-loop control is gradually being used more and more due to its cost advantage. However, the dynamic inverse model of the magnetorheological damper, which is commonl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/027F16F15/023
CPCF16F15/027F16F15/023
Inventor 张志飞鲁红伟徐中明
Owner CHONGQING UNIV