CN106930845A - A kind of gas engine detonation scaling method - Google Patents
A kind of gas engine detonation scaling method Download PDFInfo
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- CN106930845A CN106930845A CN201710235321.3A CN201710235321A CN106930845A CN 106930845 A CN106930845 A CN 106930845A CN 201710235321 A CN201710235321 A CN 201710235321A CN 106930845 A CN106930845 A CN 106930845A
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- Prior art keywords
- vehicle
- pinking
- detonation
- signal
- engine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a kind of gas engine detonation scaling method, walked greatly including demarcating pinking threshold values and vehicle knock control two, engine of the invention whether pinking, according in pinking experiment, vehicle detonation signal/vehicle environmental the noise value for coming is calculated in the pinking threshold values and engine actual motion environment that draw be compared judgement, in deterministic process, increased the participation of engine actual motion environment, so can well reduce the influence that environment is judged combustion knock, make engine flexibility stronger, the reduction of pinking False Rate.
Description
Technical field
The present invention relates to a kind of combustion knock processing technology field, more particularly to a kind of gas engine detonation demarcation side
Method.
Background technology
Requirement more and more higher with the in short supply and people of the energy to vehicular engine performance, natural gas engine economy
Property and the demarcation of dynamic property increasingly tend to the limit, and the environment of engine operation is more and more severe, big along with makings
Differ, inevitably phenomenon of detonation occurs in engine in some circumstances.The generation of combustion knock, can shorten and start
The service life of machine and exacerbated discharge, the precautionary measures for using at present are that cylinder pressure is detected, with Combustion tester
Analyze phenomenon of detonation to demarcate detonation sensor, judge that the generation of pinking and then take moves back the mode of the angle of ignition to reduce damage
Evil.It is this in vehicle operation, especially acceleration and deceleration frequently or engine speed shake it is more severe when, detonation sensor
The erroneous judgement signal of pinking can be conducted to ECU, so as to influence the normal operation of engine.
Such as Fig. 2 show prior art and carries out the flow chart of knock determination, only by the letter of detonation sensor in the method
Number output judges pinking, and the demarcation of detonation sensor carries out on stand, has Combustion tester to do standard, can demarcate essence relatively
Really, but engine change environment run when, same knock sensor signal is not necessarily really there is pinking, so erroneous judgement
Probability can improve, the environmental suitability of engine is very poor.
The content of the invention
The technical problems to be solved by the invention are to provide one kind makes engine adaptive faculty strong, the small combustion of pinking probability of miscarriage of justice
Gas combustion knock scaling method.
In order to solve the above technical problems, the technical scheme is that：A kind of gas engine detonation scaling method, including
Following steps：
Step one, demarcation pinking threshold values
The pinking threshold values of demarcating includes the experimental simulation step and data detection process step that carry out simultaneously；
The experimental simulation step includes：
A, change experiment condition, simulate pinking；
B, using Combustion tester judge pinking whether, result of determination is no, then return to previous step；Result of determination be it is yes,
Then participate in the Data Detection process step；
The Data Detection process step includes：
C, using detonation sensor detection detonation signal is tested, the experiment detonation sensor is by signal output to vehicle mounted electric
Brain ECU carries out signal conversion；
Noise signal in d, test experience environment, and experimental situation noise signal is entered by the vehicle-mounted computer ECU
Row Integral Processing；
E, in the vehicle-mounted computer ECU, the experiment pinking after vehicle-mounted computer ECU conversion in step d is passed
Sensor data value does calculating of being divided by with the data value after the experimental situation noise signal Integral Processing, draws experiment pinking letter
Number/experimental situation noise value；
F, it is that experiment detonation signal/experimental situation noise value when being sets by the Combustion tester result of determination
It is set to pinking threshold values；
Step 2, vehicle knock control
In g, vehicle operation, the signal output that the vehicle detonation sensor is detected to the vehicle-mounted computer ECU
Signal conversion is inside carried out, engine speed, speed fluctuation rate and the admission pressure rate of change parameter that real-time detection is arrived are described
Vehicle environmental noise signal Integral Processing is carried out in vehicle-mounted computer ECU；
H, in the vehicle-mounted computer ECU, the vehicle pinking after vehicle-mounted computer ECU conversion in step g is passed
Sensor data value does calculating of being divided by with the data value after the vehicle environmental noise signal Integral Processing, show that vehicle pinking is believed
Number/vehicle environmental noise value；
J, pinking threshold values and vehicle detonation signal/vehicle environmental noise value are compared, when pinking threshold values more than etc.
When vehicle detonation signal/vehicle environmental noise value, it is judged to pinking and postpones the angle of ignition；When pinking threshold values is quick-fried less than vehicle
During shake signal/vehicle environmental noise value, the non-pinking of engine, normal operation.
Used as the improvement to above-mentioned technical proposal, the demarcation pinking thresholding step runs on stand, engine speed
Stable with admission pressure, the fluctuation of engine is modified to 0.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：Engine whether pinking, according to pinking test
In, calculate next vehicle detonation signal/vehicle environmental noise ratio in the pinking threshold values for drawing and engine actual motion environment
Value is compared judgement, in deterministic process, increased the participation of engine actual motion environment, can so reduce well
The influence that environment is judged combustion knock, makes engine flexibility stronger, the reduction of pinking False Rate.
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 that the embodiment of the present invention carries out knock determination；
Fig. 2 is the flow chart that prior art carries out knock determination.
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, a kind of gas engine detonation scaling method, comprises the following steps：
Step one, demarcation pinking threshold values
The pinking threshold values of demarcating includes the experimental simulation step and data detection process step that carry out simultaneously；
The experimental simulation step includes：
A, change experiment condition, simulate pinking；
B, using Combustion tester judge pinking whether, result of determination is no, then return to previous step；Result of determination be it is yes,
Then participate in the Data Detection process step；
The Data Detection process step includes：
C, using detonation sensor detection detonation signal is tested, the experiment detonation sensor is by signal output to vehicle mounted electric
Brain ECU carries out signal conversion；
Noise signal in d, test experience environment, and experimental situation noise signal is entered by the vehicle-mounted computer ECU
Row Integral Processing, the noise signal can be detected by related sensor；
E, in the vehicle-mounted computer ECU, the experiment pinking after vehicle-mounted computer ECU conversion in step d is passed
Sensor data value does calculating of being divided by with the data value after the experimental situation noise signal Integral Processing, draws experiment pinking letter
Number/experimental situation noise value, the experiment detonation sensor data value and the experimental situation noise signal Integral Processing mistake
Journey, is the content in the art known to those of ordinary skill, is no longer described in detail herein.
F, it is that experiment detonation signal/experimental situation noise value when being sets by the Combustion tester result of determination
It is set to pinking threshold values.
In above-mentioned steps, the demarcation pinking thresholding step runs on stand, and engine speed and admission pressure are steady
Fixed, the fluctuation of engine is modified to 0.
Step 2, vehicle knock control
In g, vehicle operation, the signal output that the vehicle detonation sensor is detected to the vehicle-mounted computer ECU
Signal conversion is inside carried out, engine speed, speed fluctuation rate and the admission pressure rate of change parameter that real-time detection is arrived are described
Vehicle environmental noise signal Integral Processing is carried out in vehicle-mounted computer ECU；The engine speed can using speed probe come
Detection, the speed fluctuation rate and the admission pressure rate of change can carry out signal detection by related sensor, and by
The vehicle-mounted computer ECU carries out data processing and calculates；
H, in the vehicle-mounted computer ECU, the vehicle pinking after vehicle-mounted computer ECU conversion in step g is passed
Sensor data value does calculating of being divided by with the data value after the vehicle environmental noise signal Integral Processing, show that vehicle pinking is believed
Number/vehicle environmental noise value；
J, pinking threshold values and vehicle detonation signal/vehicle environmental noise value are compared, when pinking threshold values more than etc.
When vehicle detonation signal/vehicle environmental noise value, it is judged to pinking and postpones the angle of ignition；When pinking threshold values is quick-fried less than vehicle
During shake signal/vehicle environmental noise value, the non-pinking of engine, normal operation.
Engine of the invention whether pinking, according in pinking experiment, the pinking threshold values that draws and engine actual motion
Vehicle detonation signal/vehicle environmental the noise value for coming is calculated in environment and is compared judgement, in deterministic process, increased
The participation of engine actual motion environment, so can well reduce the influence that environment is judged combustion knock, make to start
Machine adaptability is stronger, the reduction of pinking False Rate.
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 (2)
1. a kind of gas engine detonation scaling method, it is characterised in that comprise the following steps：
Step one, demarcation pinking threshold values
The pinking threshold values of demarcating includes the experimental simulation step and data detection process step that carry out simultaneously；
The experimental simulation step includes：
A, change experiment condition, simulate pinking；
B, using Combustion tester judge pinking whether, result of determination is no, then return to previous step；Result of determination is yes, then join
With the Data Detection process step；
The Data Detection process step includes：
C, using detonation sensor detection detonation signal is tested, the experiment detonation sensor is by signal output to vehicle-mounted computer
ECU carries out signal conversion；
Noise signal in d, test experience environment, and experimental situation noise signal is accumulated by the vehicle-mounted computer ECU
Manage office；
E, in the vehicle-mounted computer ECU, by the experiment detonation sensor after vehicle-mounted computer ECU conversion in step d
Data value does calculating of being divided by with the data value after the experimental situation noise signal Integral Processing, draws experiment detonation signal/reality
Test ambient noise ratio；
F, it is that experiment detonation signal/experimental situation noise value when being is set as by the Combustion tester result of determination
Pinking threshold values；
Step 2, vehicle knock control
In g, vehicle operation, enter in the signal output that the vehicle detonation sensor is detected to the vehicle-mounted computer ECU
Row signal is changed, and engine speed, speed fluctuation rate and the admission pressure rate of change parameter that real-time detection is arrived are described vehicle-mounted
Vehicle environmental noise signal Integral Processing is carried out in computer ECU；
H, in the vehicle-mounted computer ECU, by the vehicle detonation sensor after vehicle-mounted computer ECU conversion in step g
Data value does calculating of being divided by with the data value after the vehicle environmental noise signal Integral Processing, draws vehicle detonation signal/car
Ambient noise ratio；
J, pinking threshold values and vehicle detonation signal/vehicle environmental noise value are compared, when pinking threshold values is more than or equal to car
During detonation signal/vehicle environmental noise value, it is judged to pinking and postpones the angle of ignition；When pinking threshold values is believed less than vehicle pinking
Number/vehicle environmental noise value when, the non-pinking of engine, normal operation.
2. a kind of gas engine detonation scaling method as claimed in claim 1, it is characterised in that the demarcation pinking threshold values
Step is run on stand, and engine speed and admission pressure are stable, and the fluctuation of engine is modified to 0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710235321.3A CN106930845B (en) | 2017-04-12 | 2017-04-12 | A kind of gas engine detonation scaling method |
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| CN201710235321.3A CN106930845B (en) | 2017-04-12 | 2017-04-12 | A kind of gas engine detonation scaling method |
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| CN106930845A true CN106930845A (en) | 2017-07-07 |
| CN106930845B CN106930845B (en) | 2019-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973280A (en) * | 2019-03-19 | 2019-07-05 | 汉腾汽车有限公司 | A kind of combustion knock automatic calibration method |
Citations (6)
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|---|---|---|---|---|
| DE3031511C2 (en) * | 1980-08-21 | 1989-09-14 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| CN1550653A (en) * | 2003-05-16 | 2004-12-01 | 本田技研工业株式会社 | Knocking control apparatus and method for variable cylinder internal combustion engine |
| CN101151446A (en) * | 2005-01-04 | 2008-03-26 | 丰田自动车株式会社 | Dual injection type internal combustion engine |
| CN105386882A (en) * | 2015-10-26 | 2016-03-09 | 重庆长安汽车股份有限公司 | Preignition control method for supercharge non-direct-injection gasoline engine |
| CN205192687U (en) * | 2015-12-18 | 2016-04-27 | 山东大学 | Gas engine knockings test system |
| CN105899792A (en) * | 2014-01-10 | 2016-08-24 | 三菱重工业株式会社 | Knocking determination device and knocking control device for internal combustion engine |
-
2017
- 2017-04-12 CN CN201710235321.3A patent/CN106930845B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3031511C2 (en) * | 1980-08-21 | 1989-09-14 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| CN1550653A (en) * | 2003-05-16 | 2004-12-01 | 本田技研工业株式会社 | Knocking control apparatus and method for variable cylinder internal combustion engine |
| CN101151446A (en) * | 2005-01-04 | 2008-03-26 | 丰田自动车株式会社 | Dual injection type internal combustion engine |
| CN105899792A (en) * | 2014-01-10 | 2016-08-24 | 三菱重工业株式会社 | Knocking determination device and knocking control device for internal combustion engine |
| CN105386882A (en) * | 2015-10-26 | 2016-03-09 | 重庆长安汽车股份有限公司 | Preignition control method for supercharge non-direct-injection gasoline engine |
| CN205192687U (en) * | 2015-12-18 | 2016-04-27 | 山东大学 | Gas engine knockings test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973280A (en) * | 2019-03-19 | 2019-07-05 | 汉腾汽车有限公司 | A kind of combustion knock automatic calibration method |
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| CN106930845B (en) | 2019-08-27 |
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