CN1955451A - Device and method for deciding air throttle opening degree - Google Patents
Device and method for deciding air throttle opening degree Download PDFInfo
- Publication number
- CN1955451A CN1955451A CN 200510021988 CN200510021988A CN1955451A CN 1955451 A CN1955451 A CN 1955451A CN 200510021988 CN200510021988 CN 200510021988 CN 200510021988 A CN200510021988 A CN 200510021988A CN 1955451 A CN1955451 A CN 1955451A
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- closure
- controller
- data capture
- throttle actuator
- aperture
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000013481 data capture Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
A mechanism for calibrating the opening of air throttle is composed of a rotation encoder with an input connected with said air throttle, a data acquiring controller with one input connected to output of rotation encoder and another input connected with air throttle, and an oil throttle executor connected to the output of said data acquiring controller. Its method is also disclosed.
Description
[technical field]
The invention relates to a kind of apparatus and method of deciding air throttle opening degree.
[background technique]
At present in the Automobile Detection field, generally carry out the aperture of closure and the demarcation of voltage, but it is higher to do cost like this, inaccuracy with angular displacement sensor, and closure itself also contains angular displacement sensor, and it is not quite reasonable demarcating another angular displacement sensor with an angular displacement sensor.
[summary of the invention]
The object of the present invention is to provide the apparatus and method of the little deciding air throttle opening degree of a kind of accuracy of measurement height and cost.
The object of the present invention is achieved like this: a kind of device of deciding air throttle opening degree comprises rotating coder, throttle actuator and data capture and controller, the input end of rotating coder is in order to fixedly connected with closure, its output terminal is connected with an input end of data capture and controller, another input end of data capture and controller is connected with closure, the output terminal of this data capture and controller is connected with throttle actuator, this data capture and controller control throttle actuator rotate, throttle actuator transmission closure changes aperture, rotating coder is measured the aperture of closure, data capture and controller are gathered the aperture of this closure and the output voltage of closure, and output pulse signal is to throttle actuator.
Described closure is fixedlyed connected by coupling with rotating coder.
Described throttle actuator is a torque motor.
The precision of described rotating coder is higher than the precision of throttle actuator.
A kind of method of deciding air throttle opening degree is characterized in that: comprise the following steps that circulation is carried out:
A) change aperture by throttle actuator transmission closure;
B) measure the aperture of closure by rotating coder;
C) gather the aperture of this closure and the output voltage of closure by data capture and controller, set up the demarcation relation of throttle opening and output voltage.
Described step c) also comprises step c1): after data capture and the controller image data, this data capture and controller are exported a pulse signal to throttle actuator, and throttle actuator is rotated further a fixing angle after receiving this pulse signal.
Compared with prior art, the present invention has following advantage: 1) precision is very high, and the measuring accuracy of throttle opening depends on encoder, and because the measuring accuracy of rotating coder is very high, so improved measuring accuracy; 2) cost is lower, and it is less and more common that this installs employed number of devices.
[description of drawings]
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the corresponding relation figure of throttle opening of the present invention and output voltage.
Fig. 3 is the flow chart of one-period of the present invention.
[embodiment]
See also Fig. 1, the device of a kind of deciding air throttle opening degree of the present invention comprises rotating coder 1, throttle actuator 2 and data capture and controller 3, the input end of rotating coder 1 is in order to fixedly connected with closure 4, its output terminal is connected with an input end of data capture and controller 3, another input end of data capture and controller 3 is connected with closure 4 to measure the output voltage of throttle potentiometer, the output terminal of this data capture and controller 3 is connected with throttle actuator 2, this data capture and controller 3 control throttle actuators 2 rotate, throttle actuator 2 transmission closures 4 change aperture, rotating coder 1 is measured the aperture of closure 4, data capture and controller 3 are gathered the aperture of this closure and the output voltage of closure, and output pulse signal is to throttle actuator.In the present embodiment, be connected with the duralumin coupling between closure and the rotating coder and use screw lock, realize synchronous rotation between the two, making does not have return difference between the two; Throttle actuator adopts torque motor, and it transmits torque to closure by worm and gear, makes transmission continuous, and the aperture of each angle of rotating of throttle actuator and closure changes the proportional relation that is strict.Rotating coder is used for measuring the aperture of closure.Data capture and controller are gathered the aperture of closure and the output voltage of throttle potentiometer, and output pulse signal promptly whenever sends a pulse to throttle actuator, a throttle actuator rotation fixing angle (being stepping angle).
Among the present invention, the model of rotating coder can be selected, its pulse output frequency has 1K, 3K, 5K etc., promptly this rotating coder rotates and can send 1K, 3K, a 5K pulse week respectively, as the output 3K pulse of whenever circling, then the precision that takes measurement of an angle of this rotating coder be 360 °/(3*1024)=0.12 °.Because the precision of throttle motor is less than the precision of rotating coder, so can accurately measure the aperture of closure by this rotating coder.
See also Fig. 3, the method for deciding air throttle opening degree of the present invention comprises the following steps that circulation is carried out: 1) change aperture by throttle actuator transmission closure, this aperture changes a fixing angle at every turn; 2) measure the aperture of closure by rotating coder; 3) gather the output voltage of this aperture and closure by data capture and controller, and export a pulse signal to throttle actuator by this data capture and controller; 4) throttle actuator is rotated further a fixing angle after receiving this pulse signal.In the present embodiment, in the time of need making data capture and controller whenever send a pulse signal, the aperture of closure that throttle actuator spurs can satisfy the accuracy rating of rotating coder.After collecting the aperture and output voltage data of closure, set up the corresponding relation of this aperture and output voltage, and run a curve, thereby obtain this corresponding relation accurately between the two.
Now be that the engine air throttle of 4G64, the precision of rotating coder are that 0.12 degree is how the example explanation sets up the corresponding relation between throttle opening and the output voltage with the model.The following form of the data of this throttle opening and output voltage:
| Angle | The throttle potentiometer output voltage | Angle | The throttle potentiometer output voltage |
| 82.617 | 4.535 | 62.93 | 3.621 |
| 82.617 | 4.544 | 62.227 | 3.59 |
| 82.266 | 4.535 | 61.523 | 3.569 |
| 81.562 | 4.503 | 61.523 | 3.558 |
| 81.211 | 4.481 | 58.711 | 3.43 |
| 80.508 | 4.455 | 56.953 | 3.346 |
| 80.156 | 4.438 | 54.844 | 3.246 |
| 79.453 | 4.415 | 55.898 | 3.301 |
| 79.102 | 4.387 | 55.547 | 3.291 |
| 78.75 | 4.371 | 55.195 | 3.264 |
| 78.398 | 4.356 | 54.844 | 3.25 |
| 78.047 | 4.349 | 54.492 | 3.229 |
| 77.695 | 4.317 | 53.789 | 3.203 |
| 76.992 | 4.289 | 53.437 | 3.182 |
| 76.289 | 4.258 | 53.086 | 3.163 |
| 75.586 | 4.225 | 52.383 | 3.136 |
| 75.234 | 4.2 | 52.031 | 3.113 |
| 74.531 | 4.17 | 51.68 | 3.1 |
| 73.828 | 4.133 | 50.977 | 3.07 |
| 73.125 | 4.103 | 50.625 | 3.051 |
| 72.773 | 4.094 | 50.273 | 3.034 |
| 72.422 | 4.066 | 49.57 | 3.014 |
| 72.07 | 4.048 | 49.219 | 2.985 |
| 71.367 | 4.029 | 48.867 | 2.97 |
| 71.016 | 4.004 | 48.164 | 2.941 |
| 70.664 | 3.981 | 47.812 | 2.919 |
| 70.312 | 3.966 | 47.109 | 2.897 |
| 69.609 | 3.939 | 46.758 | 2.883 |
| 69.258 | 3.916 | 46.406 | 2.852 |
| 68.906 | 3.899 | 46.055 | 2.838 |
| 68.555 | 3.888 | 45.703 | 2.819 |
| Angle | The throttle potentiometer output voltage | Angle | The throttle potentiometer output voltage |
| 67.852 | 3.853 | 45 | 2.786 |
| 67.148 | 3.822 | 44.648 | 2.772 |
| 66.797 | 3.81 | 44.297 | 2.756 |
| 66.445 | 3.784 | 43.594 | 2.724 |
| 65.742 | 3.763 | 42.891 | 2.703 |
| 65.391 | 3.741 | 42.539 | 2.688 |
| 65.039 | 3.723 | 42.187 | 2.659 |
| 64.336 | 3.699 | 41.836 | 2.64 |
| 63.984 | 3.673 | 41.133 | 2.622 |
| 63.633 | 3.654 | 40.781 | 2.596 |
| 63.281 | 3.637 | 40.43 | 2.577 |
| 40.078 | 2.561 | 20.742 | 1.659 |
| 39.375 | 2.528 | 20.391 | 1.641 |
| 38.672 | 2.501 | 19.687 | 1.617 |
| 38.672 | 2.497 | 19.336 | 1.597 |
| 37.969 | 2.467 | 18.984 | 1.579 |
| 37.617 | 2.446 | 18.633 | 1.566 |
| 36.914 | 2.422 | 17.93 | 1.535 |
| 36.562 | 2.404 | 17.578 | 1.516 |
| 35.859 | 2.382 | 17.227 | 1.504 |
| 35.859 | 2.369 | 16.875 | 1.477 |
| 35.156 | 2.338 | 16.523 | 1.463 |
| 34.453 | 2.312 | 15.82 | 1.437 |
| 34.102 | 2.288 | 15.469 | 1.421 |
| 33.75 | 2.283 | 15.117 | 1.403 |
| 33.047 | 2.251 | 14.766 | 1.387 |
| 33.047 | 2.236 | 14.062 | 1.362 |
| 32.344 | 2.203 | 13.711 | 1.346 |
| 31.992 | 2.191 | 13.008 | 1.306 |
| 31.289 | 2.16 | 12.656 | 1.283 |
| 31.289 | 2.154 | 12.305 | 1.272 |
| 30.586 | 2.12 | 11.953 | 1.25 |
| 30.234 | 2.107 | 11.602 | 1.231 |
| 29.883 | 2.086 | 11.25 | 1.217 |
| Angle | The throttle potentiometer output voltage | Angle | The throttle potentiometer output voltage |
| 29.18 | 2.057 | 10.547 | 1.188 |
| 28.828 | 2.039 | 10.195 | 1.171 |
| 28.477 | 2.026 | 9.844 | 1.152 |
| 27.773 | 1.995 | 9.492 | 1.141 |
| 27.422 | 1.972 | 8.789 | 1.116 |
| 26.719 | 1.945 | 8.437 | 1.099 |
| 26.367 | 1.928 | 8.437 | 1.09 |
| 26.016 | 1.91 | 7.734 | 1.059 |
| 25.664 | 1.893 | 7.383 | 1.04 |
| 24.961 | 1.872 | 7.031 | 1.029 |
| 24.609 | 1.844 | 6.68 | 1.014 |
| 24.258 | 1.826 | 6.328 | 0.991 |
| 23.906 | 1.809 | 5.977 | 0.986 |
| 23.203 | 1.787 | 5.625 | 0.961 |
| 22.852 | 1.759 | 5.273 | 0.954 |
| 22.5 | 1.74 | 4.922 | 0.927 |
| 21.797 | 1.713 | 4.57 | 0.915 |
| 21.445 | 1.693 | 4.219 | 0.894 |
| 21.094 | 1.68 | 3.867 | 0.881 |
| 3.516 | 0.865 | 1.406 | 0.77 |
| 3.164 | 0.848 | 1.055 | 0.756 |
| 2.812 | 0.842 | 0.703 | 0.743 |
| 2.461 | 0.819 | 0.352 | 0.732 |
| 2.109 | 0.8 | 0 | 0.715 |
| 1.758 | 0.786 |
According to the throttle opening of above table gained and the corresponding relation between the output voltage as shown in Figure 2, among Fig. 2, abscissa is throttle valve angle (being aperture), and y coordinate is the closure output voltage.
Claims (7)
1. the device of a deciding air throttle opening degree, it is characterized in that: comprise rotating coder, throttle actuator and data capture and controller, the input end of rotating coder is in order to fixedly connected with closure, its output terminal is connected with an input end of data capture and controller, another input end of data capture and controller is connected with closure, the output terminal of this data capture and controller is connected with throttle actuator, this data capture and controller control throttle actuator rotate, throttle actuator transmission closure changes aperture, rotating coder is measured the aperture of closure, data capture and controller are gathered the aperture of this closure and the output voltage of closure, and output pulse signal is to throttle actuator.
2. the device of a kind of deciding air throttle opening degree as claimed in claim 1, it is characterized in that: described closure is fixedlyed connected by coupling with rotating coder.
3. the device of a kind of deciding air throttle opening degree as claimed in claim 1, it is characterized in that: described throttle actuator is a torque motor.
4. as the device of any described a kind of deciding air throttle opening degree among the claim 1-3, it is characterized in that: the precision of described rotating coder is higher than the precision of throttle actuator.
5. the method for a deciding air throttle opening degree is characterized in that: comprise the following steps that circulation is carried out:
A) change aperture by throttle actuator transmission closure;
B) measure the aperture of closure by rotating coder;
C) gather the aperture of this closure and the output voltage of closure by data capture and controller, set up the demarcation relation of throttle opening and output voltage.
6. the method for a kind of deciding air throttle opening degree as claimed in claim 5, it is characterized in that: described step c) also comprises step c1): after data capture and the controller image data, this data capture and controller are exported a pulse signal to throttle actuator, and throttle actuator is rotated further a fixing angle after receiving this pulse signal.
7. as the method for claim 5 or 6 described a kind of deciding air throttle opening degrees, it is characterized in that: the precision of described rotating coder is higher than the precision of throttle actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219880A CN100470029C (en) | 2005-10-28 | 2005-10-28 | Device and method for deciding air throttle opening degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219880A CN100470029C (en) | 2005-10-28 | 2005-10-28 | Device and method for deciding air throttle opening degree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1955451A true CN1955451A (en) | 2007-05-02 |
| CN100470029C CN100470029C (en) | 2009-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100219880A Expired - Fee Related CN100470029C (en) | 2005-10-28 | 2005-10-28 | Device and method for deciding air throttle opening degree |
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| CN (1) | CN100470029C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709980B (en) * | 2009-12-09 | 2011-01-05 | 天津津伯仪表技术有限公司 | Uncovering-free calibration method based on intelligent electric actuating mechanism |
| CN109083750A (en) * | 2018-06-29 | 2018-12-25 | 北京长城华冠汽车技术开发有限公司 | Throttle opening automatic control system and autocontrol method |
| CN111007717A (en) * | 2019-12-24 | 2020-04-14 | 天津雷沃发动机有限公司 | Non-road state four-engine TVA calibration method |
| CN111487062A (en) * | 2020-04-21 | 2020-08-04 | 东风汽车集团有限公司 | Throttle valve automatic calibration system and method based on hardware-in-the-loop |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5659389A (en) * | 1996-12-12 | 1997-08-19 | Ford Global Tech Inc | Non-intrusive throttle body calibration |
| JP2004060540A (en) * | 2002-07-29 | 2004-02-26 | Honda Motor Co Ltd | Throttle opening control device of internal combustion engine |
| CN1548708A (en) * | 2003-05-06 | 2004-11-24 | 峰 汪 | Electronic air throttling flap body |
| CN1298985C (en) * | 2004-03-19 | 2007-02-07 | 湖南大学 | Smart controller of electronic air throttle |
-
2005
- 2005-10-28 CN CNB2005100219880A patent/CN100470029C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709980B (en) * | 2009-12-09 | 2011-01-05 | 天津津伯仪表技术有限公司 | Uncovering-free calibration method based on intelligent electric actuating mechanism |
| CN109083750A (en) * | 2018-06-29 | 2018-12-25 | 北京长城华冠汽车技术开发有限公司 | Throttle opening automatic control system and autocontrol method |
| CN109083750B (en) * | 2018-06-29 | 2020-11-06 | 北京长城华冠汽车技术开发有限公司 | Automatic control system and automatic control method for opening of throttle valve |
| CN111007717A (en) * | 2019-12-24 | 2020-04-14 | 天津雷沃发动机有限公司 | Non-road state four-engine TVA calibration method |
| CN111487062A (en) * | 2020-04-21 | 2020-08-04 | 东风汽车集团有限公司 | Throttle valve automatic calibration system and method based on hardware-in-the-loop |
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| Publication number | Publication date |
|---|---|
| CN100470029C (en) | 2009-03-18 |
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