CN106640853B - A kind of hydraulic system loads intelligence control system - Google Patents
A kind of hydraulic system loads intelligence control system Download PDFInfo
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- CN106640853B CN106640853B CN201710126717.4A CN201710126717A CN106640853B CN 106640853 B CN106640853 B CN 106640853B CN 201710126717 A CN201710126717 A CN 201710126717A CN 106640853 B CN106640853 B CN 106640853B
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- current
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- overflow valve
- current peak
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Harvesting Machines For Root Crops (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
A kind of hydraulic system loads intelligence control system, and each execution valve is connected to power supply by current information harvester in hydraulic system, and rate-determining steps are as follows：Coil drive current value when a) to each execution valve workDetected；B) hydraulic system is started；C) processor is by present current valueWith current average in memoryIt is compared；D) current value is worked asFor 0.8‑1.2When, processor judges whether overflow valve is powered, and is returned if overflow valve has been powered and performs step c), if overflow valve is not powered, processor control overflow valve, which is powered, to be opened.Because current information harvester detects to the coil current value of each execution valve, each button need not be connect a circuit to overflow valve by upper each execution valve again, so as to simplify control circuit, wiring difficulty is avoided, reduces probability density of failure and cost.
Description
Technical field
The present invention relates to hydraulic system field, and in particular to a kind of hydraulic system loads intelligence control system.
Background technology
Hydraulic system is widely used in the fields such as engineering machinery, manufacturing industry, and Automated condtrol is that hydraulic system is the most frequently used
Control form, especially currently with the continuous improvement of intelligent manufacturing technology, the Automated condtrol of hydraulic pressure is occupied more and more
Ratio.
The open system of hydraulic circuit be on startup or when need not export high pressure, overflow valve must not electricity, hydraulic oil passes through
Oil return filter for molten is passed straight back to hydraulic oil container, has both served the effect of protection hydraulic system, has also significantly saved energy consumption.It is this
The problem of mode is brought is, when equipment needs pressure, overflow valve will be powered work in time, it is not necessary to during pressure overflow valve will and
When power off, make its open carry out overflow release.Common practice is that the electricity for arriving overflow valve all the way is connect on each control button
Road.When the workpieces such as hydraulic cylinder are more, the quantity equivalent increase of magnetic valve, the switch blocks such as the button of magnetic valve are controlled
Accordingly to increase.Being connected to the circuit of overflow valve also will accordingly increase, and circuit is become extremely complex, also increase cost and cloth
Line difficulty, increases probability density of failure.In order to avoid such case, overflow valve is located always after being designed to system startup sometimes
In closed mode, hydraulic work system causes hydraulic oil to be brought rapidly up, energy consumption also greatly increases in higher load condition.
The content of the invention
The present invention is in order to overcome the shortcomings of above technology, there is provided a kind of liquid for simplifying control circuit, reducing fault rate
Press system load intelligence control system.
Technical scheme is used by the present invention overcomes its technical problem：
A kind of hydraulic system loads intelligence control system, and each execution valve passes through current information harvester in hydraulic system
Power supply is connected to, rate-determining steps are as follows：
A) coil drive current value when current information harvester is to each execution valve workDetected, collection time
Number is n times, and N is the natural number more than or equal to 2, and the current value of each valve n times collection is converted to data signal by A/D converter
The respective current average of each valve is calculated by processor afterwards, and willStore into memory；
B) hydraulic system is started；
C) each coil drive current value performed when valve works of current information harvester collection, processor will be current
Current valueWith current average in memoryIt is compared；
D) current value is worked asFor 0.8-1.2When, processor judges whether overflow valve is powered, if overflow valve has led to
Electric then return execution step c), if overflow valve is not powered, processor control overflow valve, which is powered, to be opened.
In order to improve control accuracy, it is additionally included in step a), current information harvester is to each execution valve work
When current peakAnd the current peak durationDetected, times of collection is n times, and N is the nature more than or equal to 2
Number, the current peak of each valve n times collection and current peak durationBy A/D converter be converted to after data signal by
Processor calculates each respective current peak average value of valveAnd respective current peak duration average value, and will
AndStore into memory；The each current peak performed when valve works of current information harvester collection in step c)With
And the current peak duration, processor is by current flow peak valueAnd the current peak durationWith in memory
Current peak average valueAnd current peak duration average valueIt is compared；Work as current peak in step d)For 0.8
-1.2, and the current peak durationFor 0.8-1.2When, processor judges whether overflow valve is powered, if overflow valve
It has been powered to then returning and has performed step c), if overflow valve is not powered, processor control overflow valve, which is powered, is opened.
The beneficial effects of the invention are as follows：After the button that control performs valve is pressed, this hydraulic system load intelligent control system
System to the judgement for performing valve coil driving current value by determining to perform whether valve is in operating state, if being in operating state
Then processor is judged the state of overflow valve again, overflow valve is powered in time, so that hydraulic system provides work pressure
Power.Because current information harvester detects to the coil current value of each execution valve, upper each execution valve is not required to
Each button is connect into a circuit to overflow valve again, so as to simplify control circuit, avoid wiring difficulty, reduce event
Hinder probability density and cost.
Brief description of the drawings
Fig. 1 is the system flow chart of the present invention.
Embodiment
1 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of hydraulic system loads intelligence control system, and each execution valve passes through current information harvester in hydraulic system
Power supply is connected to, rate-determining steps are as follows：A) coil drive current value when current information harvester is to each execution valve workDetected, times of collection is n times, and N is the natural number more than or equal to 2, and the current value of each valve n times collection is turned by A/D
Parallel operation is converted to and calculates the respective current average of each valve by processor after data signal, and willStore to memory
In；B) hydraulic system is started；C) each coil drive current value performed when valve works of current information harvester collection, place
Device is managed by present current valueWith current average in memoryIt is compared；D) current value is worked asFor 0.8-1.2
When, processor judges whether overflow valve is powered, and is returned if overflow valve has been powered and performs step c), if overflow valve is not logical
Electricity, then processor control overflow valve, which is powered, opens.Realize after the button that control performs valve is pressed, this hydraulic system load intelligence
Energy control system to the judgement for performing valve coil driving current value by determining to perform whether valve is in operating state, if being in
Then processor judges the state of overflow valve operating state again, overflow valve is powered in time, so that hydraulic system carries
For operating pressure.Because current information harvester detects to the coil current value of each execution valve, above-mentioned each execution
Each button need not be connect a circuit to overflow valve by valve again, so as to simplify control circuit, avoided wiring difficulty, dropped
Low probability density of failure and cost.
Further, it is additionally included in step a), current peak when current information harvester is to each execution valve work
ValueAnd the current peak durationDetected, times of collection is n times, and N is valve N each more than or equal to 2 natural number
The current peak of secondary collection and current peak durationBe converted to by A/D converter and calculated by processor after data signal
Each respective current peak average value of valveAnd respective current peak duration average value, and willAndStore to
In memory；The each current peak performed when valve works of current information harvester collection in step c)And current peak
Duration, processor is by current flow peak valueAnd the current peak durationPut down with the current peak in memory
AverageAnd current peak duration average valueIt is compared；Work as current peak in step d)For 0.8-1.2, and
The current peak durationFor 0.8-1.2When, processor judges whether overflow valve is powered, if overflow valve has been powered
Return and perform step c), if overflow valve is not powered, processor control overflow valve, which is powered, to be opened.In current value X and storage
Current average in deviceOn the basis of comparison, current peak is further added byAnd the current peak durationWith in memory
Current peak average valueAnd current peak duration average valueIt is compared, whole control system can be made to performing
The judgement whether valve acts is more accurate, further increases the control accuracy of this hydraulic system load intelligence control system.
Claims (2)
1. a kind of hydraulic system loads intelligence control system, it is characterised in that：Each execution valve is believed by electric current in hydraulic system
Breath harvester is connected to power supply, and rate-determining steps are as follows：
A) coil drive current value when current information harvester is to each execution valve workDetected, times of collection N
Secondary, N is natural number more than or equal to 2, the current value of each valve n times collection by A/D converter be converted to after data signal by
Processor calculates each respective current average of valve, and willStore into memory；
B) hydraulic system is started；
C) each coil drive current value performed when valve works of current information harvester collection, processor is by current flow
ValueWith current average in memoryIt is compared；
D) current value is worked asFor 0.8-1.2When, processor judges whether overflow valve is powered, if overflow valve has been powered
Return and perform step c), if overflow valve is not powered, processor control overflow valve, which is powered, to be opened.
2. hydraulic system according to claim 1 loads intelligence control system, it is characterised in that：It is additionally included in step a)
In, current peak when current information harvester is to each execution valve workAnd the current peak durationExamined
Survey, times of collection is n times, and N is the natural number more than or equal to 2, when the current peak and current peak of each valve n times collection continue
BetweenBe converted to by A/D converter and the respective current peak average value of each valve is calculated by processor after data signalIt is and each
From current peak duration average value, and willAndStore into memory；Current information harvester in step c)
Gather current peak during each execution valve workAnd the current peak duration, processor is by current flow peak valueWith
And the current peak durationWith the current peak average value in memoryAnd current peak duration average valueCarry out
Compare；Work as current peak in step d)For 0.8-1.2, and the current peak durationFor 0.8-1.2When, processing
Device judges whether overflow valve is powered, and is returned if overflow valve has been powered and performs step c), if overflow valve is not powered, located
Device control overflow valve energization is managed to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126717.4A CN106640853B (en) | 2017-03-06 | 2017-03-06 | A kind of hydraulic system loads intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126717.4A CN106640853B (en) | 2017-03-06 | 2017-03-06 | A kind of hydraulic system loads intelligence control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640853A CN106640853A (en) | 2017-05-10 |
| CN106640853B true CN106640853B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126717.4A Active CN106640853B (en) | 2017-03-06 | 2017-03-06 | A kind of hydraulic system loads intelligence control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873817A (en) * | 1988-08-01 | 1989-10-17 | United Technologies Automotive, Inc. | Electrically controlled pressure relief valve system and method |
| CN1398735A (en) * | 2001-07-20 | 2003-02-26 | 胡斯可国际股份有限公司 | Double regeneration and suspension mode for cross-country vehicle |
| CN101332774A (en) * | 2008-08-06 | 2008-12-31 | 山东理工大学 | Automobile brake energy regeneration control device and system |
| CN103827509A (en) * | 2011-11-07 | 2014-05-28 | 住友重机械工业株式会社 | Closed hydraulic circuit system |
| CN105107875A (en) * | 2015-09-17 | 2015-12-02 | 太原科技大学 | Dual-pressure closed-loop control method for full-hydraulic straightener |
-
2017
- 2017-03-06 CN CN201710126717.4A patent/CN106640853B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873817A (en) * | 1988-08-01 | 1989-10-17 | United Technologies Automotive, Inc. | Electrically controlled pressure relief valve system and method |
| CN1398735A (en) * | 2001-07-20 | 2003-02-26 | 胡斯可国际股份有限公司 | Double regeneration and suspension mode for cross-country vehicle |
| CN101332774A (en) * | 2008-08-06 | 2008-12-31 | 山东理工大学 | Automobile brake energy regeneration control device and system |
| CN103827509A (en) * | 2011-11-07 | 2014-05-28 | 住友重机械工业株式会社 | Closed hydraulic circuit system |
| CN105107875A (en) * | 2015-09-17 | 2015-12-02 | 太原科技大学 | Dual-pressure closed-loop control method for full-hydraulic straightener |
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| Publication number | Publication date |
|---|---|
| CN106640853A (en) | 2017-05-10 |
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