CN109270863A - A kind of driving circuit for electromagnetic valve with status detection function - Google Patents
A kind of driving circuit for electromagnetic valve with status detection function Download PDFInfo
- Publication number
- CN109270863A CN109270863A CN201811179058.1A CN201811179058A CN109270863A CN 109270863 A CN109270863 A CN 109270863A CN 201811179058 A CN201811179058 A CN 201811179058A CN 109270863 A CN109270863 A CN 109270863A
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- CN
- China
- Prior art keywords
- driving circuit
- electromagnetic valve
- solenoid valve
- field
- effect tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of driving circuit for electromagnetic valve for feeding back with state, the circuit is broadly divided into solenoid valve state detection module and solenoid valve driving module, solenoid valve state detection module detects the component state in controller when work, during the work time the working condition of real-time judgment solenoid valve driving module.Wherein driving circuit for electromagnetic valve state detection module uses twin voltage to compare the method for detection mainly to judge whether solenoid valve control switch is working properly, guarantees that driving current can normally flow through solenoid valve.
Description
Technical field
The present invention relates to a kind of driving circuit for electromagnetic valve with status detection function, send out more particularly, to solid rail control
The driving circuit of motivation super-pressure ultrahigh speed solenoid valve.
Background technique
With the development of technology, the requirement of the energy management of solid propellant rocket and posture orbit adjusting ability is got over
Come higher, super-pressure ultrahigh speed solenoid valve is widely used as executive component.The use of solenoid valve improves solid-rocket hair
The energy management capabilities and rail control performance of motivation, while many problems are also brought, wherein the use of solenoid valve keeps solid fiery
The complexity of arrow engine system improves, and reliability reduces.
In solid propellant rocket development and use process so that there is solenoid valve in the raising of system complexity
Failure cannot quickly position, situations such as there may be solenoid valve failures, driving circuit failure in use, can not be quick
The problem of being control circuit respectively or solenoid valve self problem, it is therefore desirable to propose a kind of electromagnetism with state self-checking function
Valve-driving circuit, so that realizing the state feedback of driving circuit for electromagnetic valve while having solenoid valve control function.
Summary of the invention
The purpose of the present invention is provide a kind of electromagnetism with status detection function for the deficiency in current use process
Solenoid valve control function may be implemented in valve-driving circuit, including solenoid valve driving module and circuit state detection module, the circuit,
The state feedback of driving circuit for electromagnetic valve can be realized simultaneously.
To achieve the goals above, the technical scheme is that a kind of solenoid-driven with status detection function
Circuit, including microprocessor circuit, solenoid valve M, field-effect tube Q1, sustained diode 1, current-limiting resistance R1, R2, voltage compare
The composition such as device U1A and U1B, detection resistance R3.Positive pole is accessed in one end of detection resistance R3 and one end of solenoid valve M, described
Solenoid valve M another termination field-effect tube drain electrode, field-effect tube source electrode ground connection；Another termination of current-limiting resistance R3
The drain electrode of field-effect tube, the current-limiting resistance R1 are connected by the control terminal of microprocessor with the grid of field-effect tube, afterflow
The cathode of diode D1 connects the drain electrode of field-effect tube, another termination positive pole；The current-limiting resistance R2 accesses U1A and U1B
Input anode, the negative terminal of U1A connects 1 level of threshold values, and the negative terminal of U1B connects 2 level of threshold values, and the output of U1A is that switch closes detection
Output, the output of U1B are that switch opens detection output.
Technical program of the present invention lies in providing should based on the above-mentioned driving circuit for electromagnetic valve with status detection function
Method the following steps are included: step 1, microprocessor circuit work on power, open by output high level control field-effect tube, adopts at this time
The voltage at collection FET drain end threshold voltage 1 compared with U1B is compared, and when being less than 2 level of threshold values, shows that solenoid valve drives
Dynamic circuit is opened normally, and otherwise driving circuit for electromagnetic valve is opened abnormal.Step 2, microprocessor circuit export low level control field
Effect pipe is closed, and the voltage at acquisition FET drain end threshold voltage 2 compared with U1A is compared at this time, when greater than threshold values 1
Level shows that driving circuit for electromagnetic valve is closed normally, and otherwise driving circuit for electromagnetic valve is closed abnormal.
The invention has the advantages that quickly positioning failure is driving circuit or solenoid valve self problem, it is therefore desirable to
A kind of driving circuit for electromagnetic valve with state self-checking function is proposed, so that realizing while having solenoid valve control function
The state of driving circuit for electromagnetic valve is fed back.
Detailed description of the invention
Fig. 1 is the driving circuit for electromagnetic valve figure with status detection function.
Specific embodiment
As shown in connection with fig. 1, the driving circuit for electromagnetic valve course of work with status detection function of the embodiment of the present invention is such as
Under, microprocessor circuit works on power, and output high level control field-effect tube is opened, and acquires the electricity at FET drain end at this time
Pressure threshold voltage 1 compared with U1B is compared, and when being less than 2 level level of threshold values, shows that driving circuit for electromagnetic valve is opened normally,
Otherwise driving circuit for electromagnetic valve is opened abnormal.Step 2, microprocessor circuit output low level control field-effect tube are closed, at this time
The voltage at acquisition FET drain end threshold voltage 2 compared with U1A is compared, and when being greater than 1 level level of threshold values, shows electricity
Electromagnetic valve driving circuit is closed normally, and otherwise driving circuit for electromagnetic valve is closed abnormal.It include inductive load in solenoid valve, inductance exists
Biggish counter electromotive force can be generated when switch, in order to inhibit damage of the counter electromotive force to metal-oxide-semiconductor Q1, this module increases diode D1
Afterflow is carried out, counter electromotive force is inhibited.
Claims (2)
1. a kind of driving circuit for electromagnetic valve with status detection function, it is characterised in that: including microprocessor circuit, solenoid valve
M, field-effect tube Q1, sustained diode 1, current-limiting resistance R1, R2, voltage comparator U1A and U1B, detection resistance R3；
Positive pole, another termination field effect of the solenoid valve M are accessed in one end of the detection resistance R3 and one end of solenoid valve M
Should pipe drain electrode, field-effect tube source electrode ground connection；The drain electrode of another termination field-effect tube of the current-limiting resistance R3, the limit
Leakage resistance R1 is connected by the control terminal of microprocessor with the grid of field-effect tube, and the cathode of sustained diode 1 connects field-effect tube
Drain electrode, another termination positive pole；The input anode of the current-limiting resistance R2 access U1A and U1B, the negative terminal of U1A meet 24V
Level, the negative terminal of U1B connect 2V level, and the output of U1A is switch closing detection output, and the output of U1B is that switch opening detection is defeated
Out.
2. based on a kind of state self checking method of the driving circuit for electromagnetic valve with status detection function described in claim 1,
Characterized by comprising the following steps:
Step 1: microprocessor circuit works on power, and output high level control field-effect tube is opened, and acquires field-effect tube leakage at this time
Extreme voltage threshold voltage 1 compared with U1B is compared, and when being less than 2 level level of threshold values, shows that driving circuit for electromagnetic valve is opened
It opens normally, otherwise driving circuit for electromagnetic valve is opened abnormal；
Step 2, microprocessor circuit output low level control field-effect tube are closed, and acquire the voltage at FET drain end at this time
Threshold voltage 2 is compared compared with U1A, when being greater than 1 level level of threshold values, shows that driving circuit for electromagnetic valve is closed normally, no
Then driving circuit for electromagnetic valve is closed abnormal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811179058.1A CN109270863A (en) | 2018-10-10 | 2018-10-10 | A kind of driving circuit for electromagnetic valve with status detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811179058.1A CN109270863A (en) | 2018-10-10 | 2018-10-10 | A kind of driving circuit for electromagnetic valve with status detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109270863A true CN109270863A (en) | 2019-01-25 |
Family
ID=65196408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811179058.1A Pending CN109270863A (en) | 2018-10-10 | 2018-10-10 | A kind of driving circuit for electromagnetic valve with status detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109270863A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898777A (en) * | 2021-09-08 | 2022-01-07 | 中国航空工业集团公司西安航空计算技术研究所 | Pure hardware-based electromagnetic valve pulse width modulation driving circuit |
| EP4311940A1 (en) * | 2022-07-29 | 2024-01-31 | Danfoss Scotland Limited | Fault diagnostics in hydraulic machines |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108232A (en) * | 1997-10-06 | 1999-04-20 | Rinnai Corp | Solenoid valve drive device |
| CN101542166A (en) * | 2006-11-24 | 2009-09-23 | 五十铃自动车株式会社 | Diagnosing apparatus |
| CN102777665A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Solenoid valve control circuit and solenoid valve switch-in self-checking method thereof |
| CN102777666A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Electromagnetic valve control circuit and electromagnetic valve closing self-checking method thereof |
| CN204210442U (en) * | 2014-09-16 | 2015-03-18 | 上海航天汽车机电股份有限公司 | A kind of braking automobile controller electromagnetic valve coil control circuit |
| CN104976408A (en) * | 2015-07-20 | 2015-10-14 | 杨迎龙 | Electromagnetic valve control circuit and method |
| CN107191658A (en) * | 2017-06-09 | 2017-09-22 | 北京万世明科技发展有限公司 | Two-wire system realizes the method and device of solenoid valve control and state-detection |
-
2018
- 2018-10-10 CN CN201811179058.1A patent/CN109270863A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11108232A (en) * | 1997-10-06 | 1999-04-20 | Rinnai Corp | Solenoid valve drive device |
| CN101542166A (en) * | 2006-11-24 | 2009-09-23 | 五十铃自动车株式会社 | Diagnosing apparatus |
| CN102777665A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Solenoid valve control circuit and solenoid valve switch-in self-checking method thereof |
| CN102777666A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Electromagnetic valve control circuit and electromagnetic valve closing self-checking method thereof |
| CN204210442U (en) * | 2014-09-16 | 2015-03-18 | 上海航天汽车机电股份有限公司 | A kind of braking automobile controller electromagnetic valve coil control circuit |
| CN104976408A (en) * | 2015-07-20 | 2015-10-14 | 杨迎龙 | Electromagnetic valve control circuit and method |
| CN107191658A (en) * | 2017-06-09 | 2017-09-22 | 北京万世明科技发展有限公司 | Two-wire system realizes the method and device of solenoid valve control and state-detection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898777A (en) * | 2021-09-08 | 2022-01-07 | 中国航空工业集团公司西安航空计算技术研究所 | Pure hardware-based electromagnetic valve pulse width modulation driving circuit |
| CN113898777B (en) * | 2021-09-08 | 2024-04-16 | 中国航空工业集团公司西安航空计算技术研究所 | Electromagnetic valve pulse width modulation driving circuit based on pure hardware |
| EP4311940A1 (en) * | 2022-07-29 | 2024-01-31 | Danfoss Scotland Limited | Fault diagnostics in hydraulic machines |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |
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| RJ01 | Rejection of invention patent application after publication |