CN104819832A - Open-loop throttle valve response time detection method - Google Patents
Open-loop throttle valve response time detection method Download PDFInfo
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- CN104819832A CN104819832A CN201510200474.5A CN201510200474A CN104819832A CN 104819832 A CN104819832 A CN 104819832A CN 201510200474 A CN201510200474 A CN 201510200474A CN 104819832 A CN104819832 A CN 104819832A
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- response time
- air throttle
- throttle valve
- detection method
- valve block
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses an open-loop throttle valve response time detection method. The open-loop throttle valve response time detection method includes the following steps that: a conductive electrode is arranged on valve body baffles corresponding to a valve sheet closing check point and a valve sheet opening check point of a throttle valve respectively; a valve sheet rotating support of the throttle valve is connected with the negative pole of a voltage-stabilized power source through a wire; the positive pole of the voltage-stabilized power source is connected with a signal line of an oscilloscope; the two conductive electrodes are connected with the grounding end of the oscilloscope respectively through wires; and the oscilloscope is adopted to detect the response time of the throttle valve. According to the open-loop throttle valve response time detection method of the invention, the opening and closing of the throttle valve are converted into on-off of voltage signals, which can be adopted as a judgment method of the response time of the throttle valve; a time interval of the on-off of the voltage is detected through the oscilloscope and is adopted as the response time of the open-loop throttle valve; and therefore, the problem of incapability of detecting the response time in performance detection of the open-loop throttle valve can be solved.
Description
Technical field
The present invention relates to the Performance Detection of main parts size in engine aspirating system, carry out the method detected especially for the divided ring air throttle response time.
Background technology
Air throttle is one of requisite parts in gasoline engine systems, and engine control system changes the aperture size of air throttle by gathering the signals such as gas pedal, rotating speed, admission pressure, temperature, thus controls the output power of engine.Air throttle comprises valve body, gas passage, membrane well and valve block runing rest is provided with in valve body, valve body is provided with the stop bit point of spacing valve block runing rest, realize side-to-side movement under the suction function of rack rod in membrane well, valve block runing rest carries out the switching motion having rotated air throttle under the effect of rack rod.
Along with the increasingly stringent of Abgasgesetz, air throttle utilization on a diesel engine also progressively starts.Air throttle effect on a diesel engine mainly coordinates turbosupercharger and gas recirculation system (egr system) to reach higher EGR rate, realizes NO further
xthe control of discharge, makes it reach higher emission request.Engine control system controls the folding of air throttle by gathering each sensor signal of engine, thus controls the air capacity entering engine air system.When underload and moderate duty, throttle opening is smaller, control NO
xdischarge; During the large load operation of diesel engine, WOT obtains enough power to make engine.
Air throttle all plays very important effect in diesel engine and gasoline engine systems, the performance good job of that air throttle itself just seems particularly important, it is also the link of can not ignore that the air throttle of open loop type detects nature as itself properties of the product after closed loop air throttle cost declining, the particularly response time of open loop type air throttle, as one of the Specifeca tion speeification being air throttle, its accuracy directly affects the whether qualified of air throttle.But, for the air throttle of closed-loop control, because itself is with angle position sensor, so the response time will testing it is just very convenient, only need test position sensor signal to change to the maximum time from minimum; And for the air throttle of opened loop control, owing to there is no rotary angle transmitter, so the test response time is just very thorny, and the response time of also not splitting ring type air throttle at present carry out the method that detects.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of method that response time simple to operate, that can split ring type air throttle carries out detecting.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
The detection method of open loop air throttle response time, described detection method specifically comprises the following steps:
The valve body baffle plate of A. closing stop bit point and valve block opening and closing stop bit point at the corresponding valve block of air throttle arranges a conductive electrode respectively;
B. be connected with the negative pole of stabilized voltage supply by the valve block runing rest of wire by air throttle;
C. the positive pole of stabilized voltage supply is connected oscillographic signal wire;
D. two conductive electrodes are connected oscillographic earth terminal respectively by wire;
E. the response time of oscillograph to air throttle is adopted to detect.
The detection method of above-mentioned open loop air throttle response time, the valve block runing rest of described air throttle adopts conductive material to make.
The detection method of above-mentioned open loop air throttle response time, described conductive electrode comprises the electro-insulating rubber layer and copper sheet that are bonded together, and described electro-insulating rubber layer sticks to corresponding valve block and closes 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 the time interval of adjacent twice circuit turn-on, and this time interval is response time of air throttle.
Owing to have employed 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 evaluation method of air throttle response time, by the response time as open loop type air throttle time interval of oscillograph test voltage break-make, solve the problem that open loop air throttle response time when Performance Detection cannot test.When divided ring air throttle carries out performance test, using the response time of opening and closing as the key criterion passing judgment on this air throttle quality, the detection means of tester for air throttle performance can be enriched.
Accompanying drawing explanation
Fig. 1 is air throttle valve block closed condition schematic diagram of the present invention;
Fig. 2 is the structural representation of apply to Section valve subject throttle valve block opening of the present invention;
Fig. 3 is the structural representation of conductive electrode of the present invention.
Wherein: 1. oscillograph, 2. stabilized voltage supply, 3. valve block closes stop bit point, and 4. valve block opens stop bit point, 5. valve block runing rest, 6. rack rod, 7. conductive electrode, 71. copper sheets, 72. electro-insulating rubber layer, 8. wires, 9. valve body baffle plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
The detection method of open loop air throttle response time, the opening and closing of air throttle are converted into the break-make of voltage signal by this detection method, in this, as the evaluation method of air throttle response time, simple and practical, easy to operate.
The parts that this detection method uses mainly comprise stabilized voltage supply and oscillograph, and in the present embodiment, stabilized voltage supply adopts 5V stabilized voltage supply, and oscillograph is for gathering voltage signal.The method comprises the following steps particularly:
The valve body baffle plate of A. closing stop bit point 3 and valve block opening and closing stop bit point 4 at the corresponding valve block of air throttle arranges a conductive electrode 7 respectively, and guarantees with conductive electrode 7 air throttle contactless.The structure of conductive electrode 7 as shown in Figure 3, comprises the electro-insulating rubber layer 72 and copper sheet 71 that are bonded together, and described electro-insulating rubber layer 72 sticks to corresponding valve block and closes on the valve body baffle plate 9 of stop bit point and valve block unlatching stop bit point.
B. be connected with the negative pole of stabilized voltage supply 2 by the valve block runing rest 5 of wire by air throttle, as shown in Figure 2.The valve block runing rest of air throttle adopts conductive material to make, circuit turn-on during to ensure that air throttle is in the closed position, and when air throttle moves to open site from initial position, circuit disconnects, circuit conducting again during air throttle arrival open site.
C. the positive pole of stabilized voltage supply 2 is connected the signal wire of oscillograph 1, as shown in Figure 2.
D. the copper sheet of two conductive electrodes 7 is connected oscillographic earth terminal respectively by wire, as shown in Figure 2.
E. the response time of oscillograph to air throttle is adopted to detect; The signal of described oscillograph collection is the time interval of adjacent twice circuit turn-on, and this time interval is response time of air throttle.
When the test response time, the effect due to air throttle internal spring force makes valve block for off-position, now circuit turn-on, and oscillograph can test voltage signal.
Then vacuum source is connected, the negative pressure that testing standard is formulated is passed in air throttle membrane well, rack rod is moved right, band moving valve plate runing rest rotates, thus air throttle valve block is opened, Fig. 1 middle valve plate runing rest is in the closed position, and now valve block runing rest and valve block are closed stop bit point 3 and contacted; Connecting rod band moving valve plate runing rest moves to whole open site, and as shown in Figure 2, now valve block runing rest and valve block are opened stop bit point 4 and contacted.
In the present invention, valve block runing rest is only in valve block and opens circuit just conducting when stop bit point and valve block close stop bit point, so namely only need to test valve block runing rest from the time interval that off-position moves to the power-off signal that oscillograph collects the process of open site is unlatching response time of air throttle.Time between oscillograph recording twice conducting, thus draw air throttle from initial to the response time of open position.
Claims (4)
1. the detection method of open loop air throttle response time, is characterized in that, described detection method specifically comprises the following steps:
The valve body baffle plate of A. closing stop bit point and valve block opening and closing stop bit point at the corresponding valve block of air throttle arranges a conductive electrode (7) respectively;
B. be connected with the negative pole of stabilized voltage supply (2) by the valve block runing rest (5) of wire by air throttle;
C. the positive pole of stabilized voltage supply (2) is connected the signal wire of oscillograph (1);
D. two conductive electrodes (7) are connected oscillographic earth terminal respectively by wire;
E. the response time of oscillograph to air throttle is adopted to detect.
2. the detection method of open loop air throttle response time according to claim 1, is characterized in that, the valve block runing rest of described air throttle adopts conductive material to make.
3. the detection method of open loop air throttle response time according to claim 1, it is characterized in that, described conductive electrode (7) comprises the electro-insulating rubber layer (72) and copper sheet (71) that are bonded together, and described electro-insulating rubber layer (72) sticks to corresponding valve block and closes on the valve body baffle plate (9) of stop bit point and valve block unlatching stop bit point.
4. the detection method of open loop air throttle response time according to claim 1, is characterized in that, the signal of the collection of oscillograph described in step e is the time interval of adjacent twice circuit turn-on, and this time interval is 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN104819832A true CN104819832A (en) | 2015-08-05 |
| CN104819832B CN104819832B (en) | 2017-07-28 |
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (9)
| 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 |
| US20080189027A1 (en) * | 2007-02-06 | 2008-08-07 | Qian Chen | Coordinated control of throttle and egr valve |
| 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 |
| US20130318966A1 (en) * | 2012-05-30 | 2013-12-05 | 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 (9)
| 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 |
| US20080189027A1 (en) * | 2007-02-06 | 2008-08-07 | Qian Chen | Coordinated control of throttle and egr valve |
| 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 |
| US20130318966A1 (en) * | 2012-05-30 | 2013-12-05 | Ford Global Technologies, Llc | Method and system for adjusting engine throttles |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
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| CN104819832B (en) | 2017-07-28 |
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