CN104819832B - The detection method of open loop air throttle response time - Google Patents
The detection method of open loop air throttle response time Download PDFInfo
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- CN104819832B CN104819832B CN201510200474.5A CN201510200474A CN104819832B CN 104819832 B CN104819832 B CN 104819832B CN 201510200474 A CN201510200474 A CN 201510200474A CN 104819832 B CN104819832 B CN 104819832B
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- air throttle
- response time
- valve block
- oscillograph
- open loop
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Abstract
The invention discloses a kind of detection method of open loop air throttle response time, following steps are specifically included：Stop bit point is closed in air throttle correspondence valve block and valve block is opened and sets a conductive electrode respectively on the valve body baffle plate of stop bit point；The valve block runing rest of air throttle and the negative pole of voltage-stabilized power supply are connected by wire；The positive pole of voltage-stabilized power supply is connected to the signal wire of oscillograph；Two conductive electrodes are connected to the earth terminal of oscillograph by wire respectively；The response time of air throttle is detected using oscillograph.The opening and closing of air throttle are converted into the break-make of voltage signal by the present invention, in this, as the evaluation method of air throttle response time, by the response time of the time interval of oscillograph test voltage break-make as open loop type air throttle, the problem of solving open loop air throttle the response time can not test in performance detection.
Description
Technical field
The present invention relates to the performance detection of main parts size in engine aspirating system, particularly for divided ring air throttle
The method that response time is detected.
Background technology
Air throttle is one of essential part in gasoline engine systems, and engine control system is stepped on by gathering throttle
The signals such as plate, rotating speed, admission pressure, temperature change the aperture size of air throttle, so as to control the power output of engine.Section
Air valve, which includes being provided with gas passage, membrane well and valve block runing rest, valve body in valve body, valve body, is provided with spacing valve block rotation
Turn the stop bit point of support, rack rod realizes side-to-side movement under the suction function in membrane well, valve block runing rest is in support
The switching motion that rotation completes air throttle is carried out in the presence of connecting rod.
Increasingly strict with Abgasgesetz, the utilization of air throttle on a diesel engine also progressively starts.Air throttle is in diesel oil
Effect on machine is mainly cooperation turbocharger and gas recirculation system（Egr system）Higher EGR rate is reached, further
Realize to NOxThe control of discharge, reaches higher emission request.Engine control system is respectively sensed by gathering engine
Device signal controls the folding of air throttle, so as to control the air capacity into engine air system.Underload and moderate duty
When, throttle opening is smaller, controls NOxDischarge；During the big load operation of diesel engine, WOT is to cause engine to obtain
Enough power.
Air throttle plays very important effect in diesel engine and gasoline engine systems, and the performance of that air throttle in itself is good
Difference is just particularly important, and the air throttle of open loop type is used as the product properties of itself after closed loop air throttle cost declining
Detection is naturally also the response time of the link that can not ignore, particularly open loop type air throttle, is used as the main property for being air throttle
One of energy parameter, its degree of accuracy directly affects the whether qualified of air throttle.However, for the air throttle of closed-loop control, due to
Itself carry angle position sensor, so to test its response time just it is very convenient, only need test position sensor
Signal changes to the maximum time from minimum；And for the air throttle of opened loop control, due to no rotary angle transmitter, so surveying
The examination response time is just very intractable, and the method that the response time also without split ring type air throttle is detected at present.
The content of the invention
When the technical problem to be solved in the invention is to provide a kind of response simple to operate, being capable of split ring type air throttle
Between the method that is detected.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
The detection method of open loop air throttle response time, the detection method specifically includes following steps：
A. close stop bit point in air throttle correspondence valve block and valve block is opened and sets one to lead respectively on the valve body baffle plate of stop bit point
Electrode；
B. the valve block runing rest of air throttle and the negative pole of voltage-stabilized power supply are connected by wire；
C., the positive pole of voltage-stabilized power supply is connected to the signal wire of oscillograph；
D., two conductive electrodes are connected to the earth terminal of oscillograph by wire respectively；
E. the response time of air throttle is detected using oscillograph.
The detection method of above-mentioned open loop air throttle response time, the valve block runing rest of the air throttle uses conductive material
Make.
The detection method of above-mentioned open loop air throttle response time, the conductive electrode includes the electro-insulating rubber being bonded together
Layer and copper sheet, the electro-insulating rubber layer stick to correspondence valve block and closed on the valve body baffle plate of stop bit point and valve block unlatching stop bit point.
The detection method of above-mentioned open loop air throttle response time, the signal of the collection of oscillograph described in step E is adjacent two
The time interval of secondary circuit conducting, this time interval is the response time of air throttle.
As a result of above technical scheme, the invention technological progress is as follows.
The opening and closing of air throttle are converted into the break-make of voltage signal by the present invention, in this, as the air throttle response time
Evaluation method, by the time interval of oscillograph test voltage break-make as the response time of open loop type air throttle, solve
Open loop air throttle is the problem of in performance detection, the response time can not test., can when divided ring air throttle carries out performance test
Using the response time of opening and closing as the good and bad key criterion of the air throttle is judged, tester is enriched for air throttle
The detection means of performance.
Brief description of the drawings
Fig. 1 is air throttle valve block closed mode schematic diagram of the present invention；
Fig. 2 is applied to the structural representation of air throttle subject throttle valve block opening for the present invention；
Fig. 3 is the structural representation of conductive electrode of the present invention.
Wherein：1. oscillograph, 2. voltage-stabilized power supplies, 3. valve blocks close stop bit point, 4. valve blocks open stop bit point, the rotation of 5. valve blocks
Support, 6. rack rods, 7. conductive electrodes, 71. copper sheets, 72. electro-insulating rubber layers, 8. wires, 9. valve body baffle plates.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
The opening and closing of air throttle are converted into voltage by the detection method of open loop air throttle response time, the detection method
The break-make of signal, it is simple and practical in this, as the evaluation method of air throttle response time, it is easy to operate.
The part that the detection method is used mainly includes voltage-stabilized power supply in voltage-stabilized power supply and oscillograph, the present embodiment and uses 5V
Voltage-stabilized power supply, oscillograph is used for collection voltages signal.Specifically this method comprises the following steps：
A. close stop bit point 3 in air throttle correspondence valve block and valve block is opened and sets one respectively on the valve body baffle plate of stop bit point 4
Conductive electrode 7, and ensure contactless with the air throttle of conductive electrode 7.The structure of conductive electrode 7 is as shown in figure 3, including being bonded in one
The electro-insulating rubber layer 72 and copper sheet 71 risen, the electro-insulating rubber layer 72 sticks to correspondence valve block closing stop bit point and valve block is opened and stopped
On the valve body baffle plate 9 in site.
B. the valve block runing rest 5 of air throttle is connected with the negative pole of voltage-stabilized power supply 2 by wire, as shown in Figure 2.Solar term
Door valve block runing rest using conductive material making, circuit turn-on during ensureing that air throttle is in the closed position, air throttle from
Circuit is disconnected when initial position moves to open position, and circuit is turned on again when air throttle reaches open position.
C., the positive pole of voltage-stabilized power supply 2 is connected to the signal wire of oscillograph 1, as shown in Figure 2.
D., the copper sheet of two conductive electrodes 7 is connected to the earth terminal of oscillograph by wire respectively, as shown in Figure 2.
E. the response time of air throttle is detected using oscillograph；The signal of oscillograph collection for it is adjacent twice
The time interval of circuit turn-on, this time interval is the response time of air throttle.
When testing the response time, because the effect of air throttle internal spring force causes valve block in the closed position, now
Circuit turn-on, oscillograph can test voltage signal.
Then vacuum source is connected, the negative pressure that testing standard is formulated is passed through into air throttle membrane well so that rack rod
Move right, band moving valve plate runing rest is rotated, so that air throttle valve block is opened, Fig. 1 middle valve plates runing rest, which is in, to close
Closed position, now valve block runing rest and valve block are closed stop bit point 3 and contacted；Connecting rod band moving valve plate runing rest, which is moved to, all to be opened
Position is opened, as shown in Fig. 2 now valve block runing rest is contacted with valve block unlatching stop bit point 4.
In the present invention, valve block runing rest is only in circuit ability when valve block opens stop bit point and valve block closing stop bit point
Conducting, so only needing to test, that oscillograph during valve block runing rest moves to open position from closed position collects is disconnected
The time interval of electric signal is the unlatching response time of air throttle.Oscillograph recording turn on twice between time so that
Go out air throttle from initially to the response time of open position.
Claims (4)
1. the detection method of open loop air throttle response time, it is characterised in that the detection method specifically includes following steps：
A. close stop bit point in air throttle correspondence valve block and valve block is opened and sets a conductive electricity on the valve body baffle plate of stop bit point respectively
Pole（7）；
B. by wire by the valve block runing rest of air throttle（5）With voltage-stabilized power supply（2）Negative pole connection；
C. by voltage-stabilized power supply（2）Positive pole connection oscillograph（1）Signal wire；
D. by two conductive electrodes（7）The earth terminal of oscillograph is connected by wire respectively；
E. the response time of air throttle is detected using oscillograph.
2. the detection method of open loop air throttle response time according to claim 1, it is characterised in that the air throttle
Valve block runing rest is made using conductive material.
3. the detection method of open loop air throttle response time according to claim 1, it is characterised in that the conductive electrode
（7）Including the electro-insulating rubber layer being bonded together（72）And copper sheet（71）, the electro-insulating rubber layer（72）Stick to correspondence valve block
Close stop bit point and valve block opens the valve body baffle plate of stop bit point（9）On.
4. the detection method of open loop air throttle response time according to claim 1, it is characterised in that described in step E
The signal of oscillograph collection is the time interval of adjacent circuit turn-on twice, and this time interval is the response time of air throttle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200474.5A CN104819832B (en) | 2015-04-24 | 2015-04-24 | The detection method of open loop air throttle response time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510200474.5A CN104819832B (en) | 2015-04-24 | 2015-04-24 | The detection method of open loop air throttle response time |
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| Publication Number | Publication Date |
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| CN104819832A CN104819832A (en) | 2015-08-05 |
| CN104819832B true CN104819832B (en) | 2017-07-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510200474.5A Active CN104819832B (en) | 2015-04-24 | 2015-04-24 | The detection method of open loop air throttle response time |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111856265A (en) * | 2020-07-31 | 2020-10-30 | 东科克诺尔商用车制动技术有限公司 | Method for testing opening and closing response time of exhaust brake valve control cylinder |
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| CN86107163A (en) * | 1986-10-30 | 1988-05-11 | 华中工学院 | Microcomputer control petrol engine fuel saving method and device |
| JP2000155072A (en) * | 1998-11-19 | 2000-06-06 | Robert Bosch Gmbh | Inspecting method for assembly with adjusting element, particularly throttle valve, operated by electric servo motor for control action |
| CN1548708A (en) * | 2003-05-06 | 2004-11-24 | 峰 汪 | Electronic air throttling flap body |
| CN201794668U (en) * | 2010-09-30 | 2011-04-13 | 长安大学 | Singlechip-based automobile throttle valve controller |
| CN201908728U (en) * | 2010-11-26 | 2011-07-27 | 安徽沃巴弗电子科技有限公司 | Electronic throttle valve using double lines to precisely control gas inlet |
| CN201963411U (en) * | 2011-03-23 | 2011-09-07 | 温州市气动元件厂 | Independent automatic control device for electronic throttle |
| CN203316410U (en) * | 2013-07-03 | 2013-12-04 | 北京德尔福万源发动机管理系统有限公司 | Electronic throttle valve assembly detecting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7533658B2 (en) * | 2007-02-06 | 2009-05-19 | Gm Global Technology Operations, Inc. | Coordinated control of throttle and EGR valve |
| US9206747B2 (en) * | 2012-05-30 | 2015-12-08 | Ford Global Technologies, Llc | Method and system for adjusting engine throttles |
-
2015
- 2015-04-24 CN CN201510200474.5A patent/CN104819832B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86107163A (en) * | 1986-10-30 | 1988-05-11 | 华中工学院 | Microcomputer control petrol engine fuel saving method and device |
| JP2000155072A (en) * | 1998-11-19 | 2000-06-06 | Robert Bosch Gmbh | Inspecting method for assembly with adjusting element, particularly throttle valve, operated by electric servo motor for control action |
| CN1548708A (en) * | 2003-05-06 | 2004-11-24 | 峰 汪 | Electronic air throttling flap body |
| CN201794668U (en) * | 2010-09-30 | 2011-04-13 | 长安大学 | Singlechip-based automobile throttle valve controller |
| CN201908728U (en) * | 2010-11-26 | 2011-07-27 | 安徽沃巴弗电子科技有限公司 | Electronic throttle valve using double lines to precisely control gas inlet |
| CN201963411U (en) * | 2011-03-23 | 2011-09-07 | 温州市气动元件厂 | Independent automatic control device for electronic throttle |
| CN203316410U (en) * | 2013-07-03 | 2013-12-04 | 北京德尔福万源发动机管理系统有限公司 | Electronic throttle valve assembly detecting device |
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| CN104819832A (en) | 2015-08-05 |
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