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A method for realizing variable dynamic characteristics of solenoid valves in each stage by switching multiple voltage sources

A technology of dynamic characteristics and voltage source, which is applied in the direction of valve operation/release device, valve details, valve device, etc., can solve the problems of current lag and movement lag, and achieve high reliability, shortened time ratio, and simple hardware system Effect

Active Publication Date: 2021-11-05
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the obvious inductance effect of the solenoid valve coil in the high frequency state, there will be a movement hysteresis phenomenon in the opening and closing stages of the solenoid valve in the prior art, that is, under the action of voltage, the current will lag due to the inductance effect, and it will take a period of time. time to rise to the desired current value

Method used

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  • A method for realizing variable dynamic characteristics of solenoid valves in each stage by switching multiple voltage sources
  • A method for realizing variable dynamic characteristics of solenoid valves in each stage by switching multiple voltage sources
  • A method for realizing variable dynamic characteristics of solenoid valves in each stage by switching multiple voltage sources

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Embodiment Construction

[0051] The present invention will be further elaborated and described below in combination with specific embodiments. The technical features of the various implementations in the present invention can be combined accordingly on the premise that there is no conflict with each other.

[0052] 1. Hardware system

[0053] Such as figure 1 Shown, its composition of optional hardware system of the present invention can comprise four variable voltage sources 1-4, a zero voltage source 5 (zero voltage source can be understood as the variable voltage source that output is 0 voltage all the time), high-speed Diverter switch 6 (including a first contact 6-0 and 5 voltage source contacts 6-1 to 6-5, the 5 voltage source contacts are respectively connected to 4 variable voltage sources and zero voltage sources), current detection Device 7, solenoid valve 8, pressure sensing system 10, displacement sensor 9, controller 11;

[0054] The coil of the solenoid valve is connected to the high-...

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Abstract

The invention discloses a method for realizing variable dynamic characteristics of each stage of an electromagnetic valve by switching multiple voltage sources, and belongs to the field of electromagnetic valve control. The control method of the present invention is divided into several stages, and the dynamic characteristics of opening and closing of the high-frequency electromagnetic valve can be adjusted by controlling the high-speed switching switch to be connected to different voltage sources. The invention further discloses an adjustment scheme for the opening and closing characteristics of the electromagnetic valve under the condition that the duration of the single cycle of the electromagnetic valve is short, and provides the slowest opening and closing characteristic control method and the fastest opening and closing characteristic control method of the electromagnetic valve. By switching the voltage source, the invention enables the high-frequency electromagnetic valve to meet the different requirements of users for the opening and closing dynamic characteristics of the high-frequency electromagnetic valve, thereby greatly expanding the working range of the high-frequency electromagnetic valve.

Description

technical field [0001] The invention belongs to the field of electromagnetic valve control, and in particular relates to a method for realizing variable dynamic characteristics of each stage of an electromagnetic valve by switching between multiple voltage sources. Background technique [0002] In the existing field of high-frequency solenoid valves, most technologies are dedicated to how to shorten the working cycle of the solenoid valve and increase its working frequency. Few technologies focus on how to realize the adjustable function of the dynamic characteristics of the solenoid valve opening and closing. Because the existing high-frequency solenoid valve does not have the function of adjusting the dynamic characteristics of opening and closing, its working range is limited. [0003] In the opening stage of the solenoid valve, when the current value |I|>opening current, the solenoid valve starts to open; in the closing stage of the solenoid valve, when the current v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 钟麒李研彪谢耿王军何贤剑汪谢乐孙造诣
Owner ZHEJIANG UNIV OF TECH
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