CN108443017A - A kind of new type of cam shaft position sensor - Google Patents
A kind of new type of cam shaft position sensor Download PDFInfo
- Publication number
- CN108443017A CN108443017A CN201810604020.8A CN201810604020A CN108443017A CN 108443017 A CN108443017 A CN 108443017A CN 201810604020 A CN201810604020 A CN 201810604020A CN 108443017 A CN108443017 A CN 108443017A
- Authority
- CN
- China
- Prior art keywords
- axis
- shell
- rear cover
- new type
- cam shaft
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006698 induction Effects 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
- 238000005259 measurement Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention provides a kind of new type of cam shaft position sensors, including：Shell and the rear cover being connected with shell, integrated circuit board is equipped between the rear cover and shell, the shell is internally provided with magnetic receiver, the magnetic receiver is equipped with magnet close to one end of rear cover, one end interlocking of the magnetic receiver far from rear cover is equipped with axis, rolling bearing is socketed on the axis, the one end of the axis far from rear cover is socketed with connector.A kind of new type of cam shaft position sensor provided by the invention, simple in structure, stability is good, strong antijamming capability.
Description
Technical field
The present invention relates to sensor, more particularly to a kind of new type of cam shaft position sensor.
Background technology
CMPS Camshaft Position Sensor is also known as cylinder identification sensor, and the function of CMPS Camshaft Position Sensor is acquisition distribution
The position signal of camshaft, and ECU is inputted, so that ECU identifies 1 compression top center of cylinder, to carry out sequential fuel injection control, point
Fiery moment control and detonation control.In addition, camshaft-position signal is additionally operable to identify when engine start when lighting a fire for the first time
It carves.Because CMPS Camshaft Position Sensor can identify which cylinder piston will reach top dead centre, referred to as cylinder identifies
Sensor.
Instantly hall sensor technology is the most ripe, so that sensor chip is acquired and is outputed signal to by Hall effect
ECU, to realize automobile smooth ignition.However, the CMPS Camshaft Position Sensor output accuracy of existing conventional design is not high, often
After needing engine cam to rotate 3~10 circles in advance, sensor could export stable signal, it is seen that Measurement reliability and essence
Degree is not high.
Invention content
For above-mentioned deficiency in the prior art, the present invention provides a kind of new type of cam shaft position sensors, stablize
Property it is good, precision is high, and strong antijamming capability facilitates popularization.
In order to reach foregoing invention purpose, the technical solution adopted by the present invention is：
A kind of new type of cam shaft position sensor, including：Shell and the rear cover being connected with shell, the rear cover with it is outer
Integrated circuit board is equipped between shell, the shell is internally provided with magnetic receiver, and the magnetic receiver is equipped with magnetic close to one end of rear cover
Iron, one end interlocking of the magnetic receiver far from rear cover are equipped with axis, are socketed with rolling bearing on the axis, the axis is far from rear cover
One end is socketed with connector.
Beneficial effects of the present invention are：
The output signal of the present invention will not be influenced by tachometer value, and the frequency of sensor is higher, and electromagnetic wave is anti-dry
It is strong to disturb ability, is significantly increased in structure and reliability, precision compared to more common Hall-type camshaft-signal sensor, this sensor
Stability it is good, external interference resistance is strong, such as the interference signal of error resilience accidentally, therefore is not easy to generate mistake because of the factor of environment
Difference, this speed probe is effective in safeguard procedures, can not be influenced by electronics, electric circumstance.This speed probe
Measurement result it is precise and stable, output signal is reliable, can drain the oil, is moisture-proof, and can work in the higher environment of temperature, pass
The installation of sensor is simple, easy to use, can realize remote transmission.
Further, the axis is connected and fixed by positioning pin and connector, and the axis is interference fitted with magnetic receiver, connection
Stablize.
Further, there is gap, the magnet to be arranged in gap, cooperation is close on the magnetic receiver.
Further, the outside of the axis is equipped with sealing ring, increases leakproofness.
Further, the integrated circuit board is bolted on shell, and fixed form is simple, stable connection.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
The reference numeral table of comparisons：
1- shells, 2- rear covers, 3- integrated circuit boards, 4- magnetic receivers, 5- magnet, 6- axis, 7- rolling bearings, 8- sealing rings,
9- connectors, 10- positioning pins.
Specific implementation mode
Specific implementation mode to further illustrate the present invention below in conjunction with the accompanying drawings.Wherein identical parts are with identical
Reference numeral indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down"
Refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
In order that the present invention can be more clearly and readily understood, following will be combined with the drawings in the embodiments of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.
As shown in Figure 1, a kind of new type of cam shaft position sensor, including：Shell 1 and the rear cover being connected with shell 1
2, integrated circuit board 3 is equipped between the rear cover 2 and shell 1, the shell 1 is internally provided with magnetic receiver 4, the magnetic receiver 4
It is equipped with magnet 5 close to one end of rear cover 2, one end interlocking of the magnetic receiver 4 far from rear cover is equipped with axis 6, is socketed on the axis 6
Rolling bearing 7, the one end of the axis 6 far from rear cover 2 are socketed with connector 9.
The axis 6 is connected and fixed by positioning pin 10 and connector 9, and the axis 6 is interference fitted with magnetic receiver 4.
There is gap, the magnet 5 to be arranged on the magnetic receiver 4 in gap.
The outside of the axis 6 is equipped with sealing ring 8
The integrated circuit board 3 is bolted on shell 1.
Operation principle：
When installation, the slot of camshaft is coordinated to install connector 9, when the engine runs, camshaft drives 9 turns of connector
Dynamic, connector 9 is coupled with axis 6 by positioning pin 10, and magnetic receiver 4 is interference fitted with axis 6, to be rotated with moving magnet 5, integrates electricity
Road plate 3 is equipped with magnetic induction chip, and when magnet 5 rotates, the magnetic field around magnet 5 changes, and magnetic induction chip is according to magnetic flux
The variation of amount judges camshaft-position signal, and signal is passed to ECU by engine wiring harness, so that ECU identification cylinders 1 compress
Top dead centre, to carry out sequential fuel injection control, time of ignition control and detonation control.
The foregoing is merely the preferred embodiments of patent of the present invention, are not intended to limit the invention patent, all at this
All any modification, equivalent and improvement etc., should be included in patent of the present invention made by within the spirit and principle of patent of invention
Protection domain within.
Claims (5)
1. a kind of new type of cam shaft position sensor, which is characterized in that including：Shell (1) and with shell (1) be connected after
It covers (2), integrated circuit board (3) is equipped between the rear cover (2) and shell (1), the shell (1) is internally provided with magnetic receiver
(4), the magnetic receiver (4) is equipped with magnet (5) close to one end of rear cover (2), and the one end of the magnetic receiver (4) far from rear cover is rabbeted
Equipped with axis (6), rolling bearing (7) is socketed on the axis (6), the one end of the axis (6) far from rear cover (2) is socketed with connector
(9)。
2. a kind of new type of cam shaft position sensor according to claim 1, it is characterised in that：It is fixed that the axis (6) passes through
Position pin (10) is connected and fixed with connector (9), and the axis (6) is interference fitted with magnetic receiver (4).
3. a kind of new type of cam shaft position sensor according to claim 1, it is characterised in that：On the magnetic receiver (4)
With gap, the magnet (5) is arranged in gap.
4. a kind of new type of cam shaft position sensor according to claim 1, it is characterised in that：The outside of the axis (6)
Equipped with sealing ring (8)..
5. a kind of new type of cam shaft position sensor according to claim 1, it is characterised in that：The integrated circuit board
(3) it is bolted on shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604020.8A CN108443017A (en) | 2018-06-12 | 2018-06-12 | A kind of new type of cam shaft position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810604020.8A CN108443017A (en) | 2018-06-12 | 2018-06-12 | A kind of new type of cam shaft position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443017A true CN108443017A (en) | 2018-08-24 |
Family
ID=63206317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810604020.8A Pending CN108443017A (en) | 2018-06-12 | 2018-06-12 | A kind of new type of cam shaft position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443017A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226346A (en) * | 1995-02-20 | 1996-09-03 | Nissan Diesel Motor Co Ltd | Detecting device of rotary position for camshaft gear |
| CN201237550Y (en) * | 2008-05-20 | 2009-05-13 | 韦良东 | Electronic control replacement detecting instrument for engine |
| JP2009197722A (en) * | 2008-02-22 | 2009-09-03 | Daihatsu Motor Co Ltd | Detection device of position of rotation of cam shaft in internal combustion engine |
| CN201653354U (en) * | 2010-01-26 | 2010-11-24 | 东莞市美满传感器科技有限公司 | Angle sensor based on giant magneto resistive chip |
| CN203519331U (en) * | 2013-09-05 | 2014-04-02 | 扬州锻压机床股份有限公司 | Chain axle fracture monitoring device and cam controller comprising same |
| CN203981184U (en) * | 2014-08-14 | 2014-12-03 | 大陆汽车电子(长春)有限公司 | A kind of CMPS Camshaft Position Sensor |
| US20170058798A1 (en) * | 2015-08-28 | 2017-03-02 | Paul Gregory De Boer | Sensing unit providing fixed arrangement of engine position sensors |
| CN208778098U (en) * | 2018-06-12 | 2019-04-23 | 莱芜环球汽车零部件有限公司 | A kind of new type of cam shaft position sensor |
-
2018
- 2018-06-12 CN CN201810604020.8A patent/CN108443017A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226346A (en) * | 1995-02-20 | 1996-09-03 | Nissan Diesel Motor Co Ltd | Detecting device of rotary position for camshaft gear |
| JP2009197722A (en) * | 2008-02-22 | 2009-09-03 | Daihatsu Motor Co Ltd | Detection device of position of rotation of cam shaft in internal combustion engine |
| CN201237550Y (en) * | 2008-05-20 | 2009-05-13 | 韦良东 | Electronic control replacement detecting instrument for engine |
| CN201653354U (en) * | 2010-01-26 | 2010-11-24 | 东莞市美满传感器科技有限公司 | Angle sensor based on giant magneto resistive chip |
| CN203519331U (en) * | 2013-09-05 | 2014-04-02 | 扬州锻压机床股份有限公司 | Chain axle fracture monitoring device and cam controller comprising same |
| CN203981184U (en) * | 2014-08-14 | 2014-12-03 | 大陆汽车电子(长春)有限公司 | A kind of CMPS Camshaft Position Sensor |
| US20170058798A1 (en) * | 2015-08-28 | 2017-03-02 | Paul Gregory De Boer | Sensing unit providing fixed arrangement of engine position sensors |
| CN208778098U (en) * | 2018-06-12 | 2019-04-23 | 莱芜环球汽车零部件有限公司 | A kind of new type of cam shaft position sensor |
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