CN202073676U - Cylinder identifying device - Google Patents
Cylinder identifying device Download PDFInfo
- Publication number
- CN202073676U CN202073676U CN2011200880677U CN201120088067U CN202073676U CN 202073676 U CN202073676 U CN 202073676U CN 2011200880677 U CN2011200880677 U CN 2011200880677U CN 201120088067 U CN201120088067 U CN 201120088067U CN 202073676 U CN202073676 U CN 202073676U
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- China
- Prior art keywords
- probe
- signal
- cylinder
- judging device
- identifying device
- 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.)
- Expired - Fee Related
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- 239000000523 sample Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a cylinder identifying device. The cylinder identifying device comprises a signal disc which is installed on a cam shaft, wherein a light reflecting film is adhered to an outer circumferential surface of the signal disc; a probe is arranged on the side surface of the signal disc; the light reflecting film is formed by vertical white joint strips and vertical black joint strips which are arranged at uniform intervals; a reflective photoelectric switch is arranged inside the probe; an infrared light emitting tube and an infrared receiving tube are arranged inside the photoelectric switch; and in order to ensure accuracy of an acquired signal, the distance between the signal disc and the probe is 2 to 3mm. The cylinder identifying device is simple in structure and convenient to install and can ensure the accuracy of a transmitted signal.
Description
Technical field
The utility model relates to the motor car engine Detection range, especially relates to a kind of cylinder judging device.
Background technique
Along with the development of automotive engineering, the work cycle of internal-combustion engine comprises several working strokes in Motronic control maps control fuel injection system, at present automobile mostly be that four working strokes are promptly air-breathing, compression, burning, exhaust.Determine accurately which stroke each cylinder is in, extremely important to the control of engine fuel injection work timing, so that determine to light the moment and time for spraying.At present mostly be to finish identification by cylinder judging device.Because which cylinder piston is CMPS Camshaft Position Sensor can discern and be about to arrive top dead center, so be called the cylinder identification sensor.The cylinder identification sensor is topmost parts in cylinder judging device.
At present, the sensor of cylinder judging device is because the volume of itself is bigger, the cylinder volume is also limited, so cause its complex structure, the problem of inconvenience is installed, and in long working procedure, the signal that sensor is transmitted is not accurate enough, directly influenced the control of ECU, thereby brought unnecessary trouble for going on a journey to its motor.
The model utility content
The purpose of this utility model provides a kind of cylinder judging device, and the sensor bulk that solves existing cylinder judging device is bigger, and inconvenient problem is installed.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of cylinder judging device comprises the signal panel that are installed on the camshaft; Be pasted with reflceting film on the described signal panel outer peripheral surface, described signal panel side is provided with probe.
Further, described reflceting film is a joint strip vertical between the black and white homogeneous phase.
Further, be provided with a reflective photoelectric switch in the described probe, be provided with an infraluminescence pipe and an infrared receiving tube in the described optoelectronic switch.
In order to guarantee to gather the accuracy of signal, the distance between described signal panel and the probe is 2～3mm.
The beneficial effects of the utility model: owing to be pasted with reflceting film on the described signal panel outer peripheral surface, described signal panel side is provided with probe.It is simple in structure, and is easy for installation, and can guarantee the accuracy of transmission signal.
Below with reference to drawings and Examples, the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the utility model cylinder judging device organigram.
The circuit theory diagrams of Fig. 2 for popping one's head in the utility model cylinder judging device.
Among the figure: 1. signal panel, 2. reflceting film, 3. the probe.
Embodiment
Embodiment 1, and shown in Fig. 1 to 2, a kind of cylinder judging device comprises the signal panel 1 that are installed on the camshaft; Be pasted with reflceting film 2 on the described signal panel outer peripheral surface, described signal panel side is provided with probe 3.
Further, described reflceting film 2 is a joint strip vertical between the black and white homogeneous phase.
Further, be provided with a reflective photoelectric switch in the described probe 3, be provided with an infraluminescence pipe and an infrared receiving tube in the described optoelectronic switch.
In order to guarantee to gather the accuracy of signal, the distance between described signal panel 1 and the probe 2 is 2-3mm.
In the utility model, when signal panel are installed, when first cylinder is in the compression stroke top dead center, allows the secret note on the signal panel aim at probe, thereby make upper sensor output speed signal, lower sensor output cam axial displacement signal.
In circuit, be provided with reflective photoelectric switch U1 as Fig. 2, in an infraluminescence pipe and an infrared receiving tube are arranged, the infrared rays that the infraluminescence pipe sends is received by infrared receiver tube by reflceting film reflection back, it is maximum that to detect distance be 4-10mm.Described infrared tube is formed [constant by D1R5R6T2 provides the steady current of 7mA for it, and infrared tube sends constant infrared rays.Because the intensity of light reflection difference of black and white bar, when signal panel rotate, the infrared light power that reflexes to infrared receiving tube changes, the collector current of phototube also changes thereupon, flowing through this moment converts voltage signal to after triode T1 amplifies and exports from collector electrode, is shaped to the output of standard square wave by shaping circuit again.Wherein resistance R 3 and resistance R 5 have negative feedback, make circuit working more stable, and capacitor C 1 is used for the filtering interfering ripple.
This cylinder judging device, simple in structure, easy for installation, and can guarantee the accuracy of transmission signal.
Claims (4)
1. a cylinder judging device comprises the signal panel that are installed on the camshaft; It is characterized in that: be pasted with reflceting film on the described signal panel outer peripheral surface, described signal panel side is provided with probe.
2. cylinder judging device as claimed in claim 1 is characterized in that: described reflceting film is a joint strip vertical between the black and white homogeneous phase.
3. cylinder judging device as claimed in claim 1 or 2 is characterized in that: be provided with a reflective photoelectric switch in the described probe, be provided with an infraluminescence pipe and an infrared receiving tube in the described optoelectronic switch.
4. cylinder judging device as claimed in claim 3 is characterized in that: the distance between described signal panel and the probe is 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200880677U CN202073676U (en) | 2011-03-29 | 2011-03-29 | Cylinder identifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200880677U CN202073676U (en) | 2011-03-29 | 2011-03-29 | Cylinder identifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073676U true CN202073676U (en) | 2011-12-14 |
Family
ID=45111780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200880677U Expired - Fee Related CN202073676U (en) | 2011-03-29 | 2011-03-29 | Cylinder identifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150185359A1 (en) * | 2013-12-26 | 2015-07-02 | Nuctech Company Limited | Photoelectric switch for detection of an object and method for operating the same |
-
2011
- 2011-03-29 CN CN2011200880677U patent/CN202073676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150185359A1 (en) * | 2013-12-26 | 2015-07-02 | Nuctech Company Limited | Photoelectric switch for detection of an object and method for operating the same |
| US9507051B2 (en) * | 2013-12-26 | 2016-11-29 | Nuctech Company Limited | Photoelectric switch for detection of an object and method for operating the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140329 |