CN106762110A - Natural gas engine eliminates turbocharger surge control method - Google Patents
Natural gas engine eliminates turbocharger surge control method Download PDFInfo
- Publication number
- CN106762110A CN106762110A CN201611069603.2A CN201611069603A CN106762110A CN 106762110 A CN106762110 A CN 106762110A CN 201611069603 A CN201611069603 A CN 201611069603A CN 106762110 A CN106762110 A CN 106762110A
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- China
- Prior art keywords
- engine
- calibration value
- throttle
- natural gas
- control method
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
- F02B2039/162—Control of pump parameters to improve safety thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2201/00—Fuels
- F02B2201/04—Gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities
- F05D2270/101—Compressor surge or stall
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
Turbocharger surge control method is eliminated the invention discloses a kind of natural gas engine, is comprised the steps：Step one, if admission pressure is more than middle high load capacity calibration value, heavy-duty service state in engine entrance before air throttle；Step 2, if admission pressure is more than deceleration calibration value with the pressure differential of admission pressure in air inlet pipe before air throttle, engine enters the state, otherwise return to step one of running slowly；Step 3, if throttle opening rate of change is more than air throttle urgency deceleration calibration value, or admission pressure rate of change is more than pedal urgency deceleration calibration value more than air inlet pipe urgency deceleration calibration value, or pedal aperture rate of change in air inlet pipe, then engine enters anxious run slowly state, otherwise return to step two；Step 4, anti-surge valve is opened, and adjusts the operation conditions of engine, and engine surge phenomenon is eliminated；The present invention can be eliminated because of the turbocharger surge that closed throttle causes, and reduce the reliability that engine noise improves booster and air throttle simultaneously.
Description
Technical field
The present invention relates to natural gas engine technical field, more particularly to a kind of elimination natural gas engine turbocharger surge
Method.
Background technology
When engine is when running at a high speed or under big load condition, in the event of anxious (anxious pine pedal) phenomenon of slowing down,
Now engine air throttle is closed, so that supercharger air compressor end works under a certain low discharge, in compressor impeller
Inlet air flow can occur to clash into blade phenomenon, and the separation of air-flow is produced and aggravated in blade path, cause booster to be breathed heavily
Shake phenomenon.The air-flow in supercharger air compressor can be made to produce strong pulsation after booster occurs surge, made blade vibration, made an uproar
Sound is increased, and influences the operating efficiency of now engine, while making booster and the reduction of air throttle reliability.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of natural gas engine and eliminate turbocharger surge control method,
Can eliminate because of the turbocharger surge that closed throttle causes, reduce that engine noise improves booster and air throttle simultaneously can
By property.
In order to solve the above technical problems, the technical scheme is that：Natural gas engine eliminates turbocharger surge control
Method, comprises the steps：
Step one, engine operating state judges, if admission pressure is more than middle high load capacity calibration value before air throttle, sends out
Heavy-duty service state in motivation entrance；
Step 2, engine retard state judges, if before air throttle in admission pressure and air inlet pipe admission pressure pressure
Power difference is more than deceleration calibration value, then engine enters the state, otherwise return to step one of running slowly；
Step 3, engine urgency deceleration regime judges, if throttle opening rate of change suddenly slows down more than air throttle demarcated
Value, or admission pressure rate of change is more than air inlet pipe urgency deceleration calibration value in air inlet pipe, or pedal aperture rate of change is more than foot-operated
Plate urgency deceleration calibration value, then engine is into anxious run slowly state, otherwise return to step two；
Step 4, anti-surge valve is opened, and is kept for 2 to 3 seconds, engine continuous reduction rotating speed, when pedal aperture is reached
After conversion calibration value, into fuel gas shutoff pattern and minimum throttle control pattern, minimum throttle control pattern is then carried out
Lower demarcation, adjusts the operation conditions of engine, and engine surge phenomenon is eliminated.
As a kind of perferred technical scheme, in the step one, the middle high load capacity calibration value be 135KPa extremely
145KPa。
As a kind of perferred technical scheme, in the step 2, the deceleration calibration value is 4KPa to 6KPa.
As a kind of perferred technical scheme, in the step 3, air throttle urgency deceleration calibration value be 0.4/s extremely
0.6/s；The air inlet pipe urgency deceleration calibration value is 0.4/s to 0.6/s；Pedal urgency deceleration calibration value be 0.4/s extremely
0.6/s。
As a kind of perferred technical scheme, in the step 4, after engine urgency deceleration regime maintains 1s to 2s, institute
State anti-surge valve opening.
As a kind of perferred technical scheme, in the step 4, the calibration value of changing is into 38% to 42%.
By adopting the above-described technical solution, natural gas engine eliminates turbocharger surge control method, including following steps
Suddenly：Step one, engine operating state judges, if admission pressure is more than middle high load capacity calibration value, engine before air throttle
The heavy-duty service state in；Step 2, engine retard state judges, if before air throttle in admission pressure and air inlet pipe
The pressure differential of admission pressure is more than deceleration calibration value, then engine enters the state, otherwise return to step one of running slowly；Step
Three, engine urgency deceleration regime judges, if throttle opening rate of change is more than air throttle urgency deceleration calibration value, or in air inlet pipe
Admission pressure rate of change is demarcated more than air inlet pipe urgency deceleration calibration value, or pedal aperture rate of change more than pedal urgency deceleration
It is worth, then engine enters anxious run slowly state, otherwise return to step two；Step 4, anti-surge valve is opened, and keeps 2 to 3
Second, engine continuous reduction rotating speed, after pedal aperture reaches conversion calibration value, into fuel gas shutoff pattern and minimum solar term
Gate-mode, then carries out minimum throttle control pattern index and determines, and the operation conditions of engine is adjusted, by engine surge
Phenomenon is eliminated；The present invention can be eliminated because of the turbocharger surge that closed throttle causes, and reduced engine noise and improved increasing simultaneously
The reliability of depressor and air throttle.
Brief description of the drawings
The following drawings is only intended to, in schematic illustration and explanation is done to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the flow chart of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only by explanation
Mode describes some one exemplary embodiments of the invention.Undoubtedly, one of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of modes
Just.Therefore, accompanying drawing and description are inherently illustrative, are not intended to limit the scope of the claims.
As shown in figure 1, natural gas engine eliminates turbocharger surge control method, comprise the steps：
Step one, engine operating state judges, if admission pressure is more than middle high load capacity calibration value before air throttle, sends out
Heavy-duty service state in motivation entrance；The middle high load capacity calibration value is 135KPa to 145KPa.Different types of engine,
The middle high load capacity calibration value can difference.
Step 2, engine retard state judges, if before air throttle in admission pressure and air inlet pipe admission pressure pressure
Power difference is more than deceleration calibration value, then engine enters the state, otherwise return to step one of running slowly；The deceleration calibration value is
4KPa to 6KPa.Different types of engine, the deceleration calibration value can difference.
Step 3, engine urgency deceleration regime judges, if throttle opening rate of change suddenly slows down more than air throttle demarcated
Value, or admission pressure rate of change is more than air inlet pipe urgency deceleration calibration value in air inlet pipe, or pedal aperture rate of change is more than foot-operated
Plate urgency deceleration calibration value, then engine is into anxious run slowly state, otherwise return to step two；The air throttle suddenly slows down and demarcates
It is worth for 0.4/s to 0.6/s；The air inlet pipe urgency deceleration calibration value is 0.4/s to 0.6/s；The pedal urgency deceleration calibration value
For 0.4/s to 0.6/s.Different types of engine, the air throttle urgency deceleration calibration value, air inlet pipe urgency deceleration calibration value
Can difference with pedal urgency deceleration calibration value.
Step 4, after engine urgency deceleration regime maintains 1s to 2s, anti-surge valve is opened, and is kept for 2 to 3 seconds, engine
Rotating speed is persistently reduced, after pedal aperture reaches conversion calibration value, into fuel gas shutoff pattern and minimum throttle control mould
Formula, then carries out minimum throttle control pattern index and determines, and adjusts the operation conditions of engine, and engine surge phenomenon is disappeared
Remove.The calibration value of changing is into 38% to 42%.Different types of engine, the conversion calibration value can difference.
Below with an instantiation illustratively course of work of the invention：
First according to throttle inflow pressure size, judge whether engine enters high speed running status, if solar term
Admission pressure is more than after 140KPa in front of the door, you can judge that engine enters high speed running status；Under high speed running status,
If the difference of admission pressure is more than 5KPa in admission pressure and air inlet pipe before air throttle, engine enters deceleration regime, but this
Shi Wufa judges whether engine enters anxious deceleration regime；Then 0.5/s or air inlet are more than according to throttle opening rate of change
Admission pressure change is more than 0.5/s or pedal aperture rate of change is more than 0.5/s in pipe, meets under either condition, engine
Can be judged to enter anxious deceleration regime；When engine enters anxious deceleration regime, and this state continues 1s to 2s, meets anti-asthma
The condition that the valve that shakes is opened, anti-surge valve can be opened, and keep 2s to 3s；Now engine can continue to reduce rotating speed, when foot-operated
After plate aperture reaches 40%, into fuel gas shutoff pattern and minimum throttle control pattern, minimum throttle control is then carried out
Pattern index determines the aperture of air throttle, adjusts the operation conditions of engine, engine is carried out even running, it is possible to will start
Machine surge phenomenon after suddenly slowing down is eliminated.
Fuel gas shutoff pattern：It is a kind of state model of natural gas engine work, when pedal is almost totally released
Namely when bid value is close to 0, rotating speed reaches under certain condition (1300rpm/min), injection valve is controlled to cut off by ECU
Gas supply, under definite value state (throttle opening is 10%), engine ignition is interrupted the aperture of air throttle.
Minimum throttle control pattern：When this control model appears in engine idling and slided with shelves, air throttle is forced
Aperture cannot be below this limit value (according to the demarcation that throttle opening is carried out under different rotating speeds).When rotating speed drops too low, also can
Certain throttle opening is forced, prevents from stopping working.
Engine idling and band shelves slide when, Engine ECU can according to current operating condition when calculate air throttle
The requirements of aperture, but this value not necessarily meets the condition of work of engine, it is necessary to Engine ECU is strong according to following form
Air throttle processed opens corresponding aperture, prevents engine dies., it is necessary to ensure that engine is returning idling in calibration process
Shi Buhui occurs flame-out phenomenon and rotating speed to be needed to ensure in more than 450rpm/smin.
Also note that：When engine idling is set to 700rpm/min, minimum solar term gate value is demarcated as 9%, should not
Throttle opening value 12% during more than normal idling, it is therefore an objective to which prevent that the manufacturing variation of air throttle or engine from causing is idle
Speed is too high.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (6)
1. natural gas engine eliminates turbocharger surge control method, it is characterised in that comprise the steps：
Step one, engine operating state judges, if admission pressure is more than middle high load capacity calibration value, engine before air throttle
The heavy-duty service state in；
Step 2, engine retard state judges, if before air throttle in admission pressure and air inlet pipe admission pressure pressure differential
More than deceleration calibration value, then engine enters the state, otherwise return to step one of running slowly；
Step 3, engine urgency deceleration regime judges, if throttle opening rate of change is more than air throttle urgency deceleration calibration value, or
Admission pressure rate of change suddenly subtracts more than air inlet pipe urgency deceleration calibration value, or pedal aperture rate of change more than pedal in air inlet pipe
Fast calibration value, then engine is into the anxious state, otherwise return to step two of running slowly；
Step 4, anti-surge valve is opened, and is kept for 2 to 3 seconds, engine continuous reduction rotating speed, is changed when pedal aperture is reached
After calibration value, into fuel gas shutoff pattern and minimum throttle control pattern, minimum throttle control pattern index is then carried out
It is fixed, the operation conditions of engine is adjusted, engine surge phenomenon is eliminated.
2. natural gas engine as claimed in claim 1 eliminates turbocharger surge control method, it is characterised in that in the step
In rapid one, the middle high load capacity calibration value is 135KPa to 145KPa.
3. natural gas engine as claimed in claim 1 eliminates turbocharger surge control method, it is characterised in that in the step
In rapid two, the deceleration calibration value is 4KPa to 6KPa.
4. natural gas engine as claimed in claim 1 eliminates turbocharger surge control method, it is characterised in that in the step
In rapid three, the air throttle urgency deceleration calibration value is 0.4/s to 0.6/s；Air inlet pipe urgency deceleration calibration value be 0.4/s extremely
0.6/s；The pedal urgency deceleration calibration value is 0.4/s to 0.6/s.
5. natural gas engine as claimed in claim 1 eliminates turbocharger surge control method, it is characterised in that in the step
In rapid four, after engine urgency deceleration regime maintains 1s to 2s, the anti-surge valve is opened.
6. the natural gas engine as described in claim 1 to 5 any claim eliminates turbocharger surge control method, and it is special
Levy and be, in the step 4, the calibration value of changing is into 38% to 42%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069603.2A CN106762110A (en) | 2016-11-28 | 2016-11-28 | Natural gas engine eliminates turbocharger surge control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069603.2A CN106762110A (en) | 2016-11-28 | 2016-11-28 | Natural gas engine eliminates turbocharger surge control method |
Publications (1)
| Publication Number | Publication Date |
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| CN106762110A true CN106762110A (en) | 2017-05-31 |
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ID=58902481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201611069603.2A Pending CN106762110A (en) | 2016-11-28 | 2016-11-28 | Natural gas engine eliminates turbocharger surge control method |
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| CN (1) | CN106762110A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825391A (en) * | 2018-07-10 | 2018-11-16 | 潍柴西港新能源动力有限公司 | Improve the device and its response method of natural gas engine transient response |
| CN112012834A (en) * | 2020-09-07 | 2020-12-01 | 潍柴动力股份有限公司 | Gas engine control method and device for power generation, ECU and gas engine for power generation |
| CN112211735A (en) * | 2020-09-29 | 2021-01-12 | 安徽江淮汽车集团股份有限公司 | Method and device for controlling anti-surge of turbocharger, engine system and medium |
| CN114622984A (en) * | 2022-03-10 | 2022-06-14 | 潍柴动力股份有限公司 | Engine supercharger surge prediction and control method and system |
| CN115263549A (en) * | 2022-05-20 | 2022-11-01 | 潍柴动力股份有限公司 | Surge identification method of turbocharger and related device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05195798A (en) * | 1992-01-21 | 1993-08-03 | Toyota Motor Corp | Deceleration air bypass valve control device of engine with supercharger |
| JPH0861073A (en) * | 1994-08-25 | 1996-03-05 | Mazda Motor Corp | Supercharger for engine |
| JPH10246118A (en) * | 1997-02-28 | 1998-09-14 | Suzuki Motor Corp | Start control device for air bypass valve |
| CN101048583A (en) * | 2004-07-30 | 2007-10-03 | 株式会社小松制作所 | Intake controller of internal combustion engine |
| US20150135706A1 (en) * | 2012-05-30 | 2015-05-21 | Isuzu Motors Limited | Internal combustion engine and control method thereof |
| CN105351078A (en) * | 2014-08-18 | 2016-02-24 | 比亚迪股份有限公司 | Control method and control device for turbocharging air circulation valve of engine |
-
2016
- 2016-11-28 CN CN201611069603.2A patent/CN106762110A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05195798A (en) * | 1992-01-21 | 1993-08-03 | Toyota Motor Corp | Deceleration air bypass valve control device of engine with supercharger |
| JPH0861073A (en) * | 1994-08-25 | 1996-03-05 | Mazda Motor Corp | Supercharger for engine |
| JPH10246118A (en) * | 1997-02-28 | 1998-09-14 | Suzuki Motor Corp | Start control device for air bypass valve |
| CN101048583A (en) * | 2004-07-30 | 2007-10-03 | 株式会社小松制作所 | Intake controller of internal combustion engine |
| US20150135706A1 (en) * | 2012-05-30 | 2015-05-21 | Isuzu Motors Limited | Internal combustion engine and control method thereof |
| CN105351078A (en) * | 2014-08-18 | 2016-02-24 | 比亚迪股份有限公司 | Control method and control device for turbocharging air circulation valve of engine |
Non-Patent Citations (1)
| Title |
|---|
| 李朝阳,陆静安: "天然气发动机的涡轮增压器喘振研究", 《柴油机设计与制造》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825391A (en) * | 2018-07-10 | 2018-11-16 | 潍柴西港新能源动力有限公司 | Improve the device and its response method of natural gas engine transient response |
| CN108825391B (en) * | 2018-07-10 | 2023-10-20 | 潍柴西港新能源动力有限公司 | Device for improving transient response of natural gas engine and response method thereof |
| CN112012834A (en) * | 2020-09-07 | 2020-12-01 | 潍柴动力股份有限公司 | Gas engine control method and device for power generation, ECU and gas engine for power generation |
| CN112211735A (en) * | 2020-09-29 | 2021-01-12 | 安徽江淮汽车集团股份有限公司 | Method and device for controlling anti-surge of turbocharger, engine system and medium |
| CN114622984A (en) * | 2022-03-10 | 2022-06-14 | 潍柴动力股份有限公司 | Engine supercharger surge prediction and control method and system |
| CN114622984B (en) * | 2022-03-10 | 2023-03-21 | 潍柴动力股份有限公司 | Engine supercharger surge prediction and control method and system |
| CN115263549A (en) * | 2022-05-20 | 2022-11-01 | 潍柴动力股份有限公司 | Surge identification method of turbocharger and related device |
| CN115263549B (en) * | 2022-05-20 | 2023-12-15 | 潍柴动力股份有限公司 | Surge recognition method and related device of turbocharger |
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Application publication date: 20170531 |
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