CN106121818B - A kind of signal fluted disc and searching and the method for detecting piston position - Google Patents
A kind of signal fluted disc and searching and the method for detecting piston position Download PDFInfo
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- CN106121818B CN106121818B CN201610655273.9A CN201610655273A CN106121818B CN 106121818 B CN106121818 B CN 106121818B CN 201610655273 A CN201610655273 A CN 201610655273A CN 106121818 B CN106121818 B CN 106121818B
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- tooth
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- fluted disc
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 206010044048 Tooth missing Diseases 0.000 claims 4
- 230000006698 induction Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 244000186140 Asperula odorata Species 0.000 description 1
- 235000008526 Galium odoratum Nutrition 0.000 description 1
- 230000005611 electricity Effects 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
- F02B77/087—Safety, indicating, or supervising devices determining top dead centre or ignition-timing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Entitled a kind of signal fluted disc of the invention and searching and the method for detecting piston position.Belong to technical field of engines.Mainly solving existing signal teeth determines that piston position is slow for it, the problem of starting time length.It is mainly characterized by comprising: save the time from induction 24-3 tooth fluted disc structure to determine a cylinder or six the cylinder piston positions and ignition order faster；The 24 tooth fluted disc is equipped with two groups of feature teeth positioned opposite；Wherein, one group of feature tooth is to lack a tooth, and another group of feature tooth is adjacent two and lacks a tooth.The present invention have can faster, it is more acurrate find crankshaft and piston position, so that the characteristics of realizing quick start engine, is mainly used for finding piston position when engine start.
Description
Technical field
The invention belongs to technical field of engines.It is sought more particularly to a kind of 24-3 tooth signal fluted disc and using the signal fluted disc
The method for looking for and detecting piston position.
Background technique
Engine will incude the signal fluted disc on camshaft by electromagnetic sensor to find and detect piston on startup
Position, to start engine.Mainly there are the features teeth such as 6+1 tooth (Woodward, Econtrol etc.), 24-1 tooth in the market
Disk.The typical waveform of 24-1 tooth is as indicated with 1.According to waveform as indicated with 1, when engine shutdown to certain point, restarting, fluted disc
It at most needs to rotate one week, ECU could incude fluted disc structure by electromagnetic sensor and obtain after corresponding at most crank rotation two encloses
Then piston position reference signal just can be carried out the operation of fuel supply and igniting.It enables the engine to quickly start,
Under conditions of same, the position of crankshaft and piston can faster, be more accurately found, it will be able to start engine faster, and
The piston position to look for faster just has to the fewer situation of the fluted disc signal that can be incuded on camshaft in electromagnetic sensor
Under calculate the position of crankshaft, piston.In order to reduce starting time, energy saving, people all research can be faster more acurrate
The method for finding crankshaft and piston position.
Summary of the invention
A kind of 24-3 tooth signal fluted disc is provided the purpose of the present invention is to above-mentioned insufficient and utilizes the tooth signal teeth
Disk being capable of the faster more acurrate method found and detect crankshaft and piston position.
The technical solution of signal fluted disc of the present invention is: a kind of signal fluted disc, including 24 tooth fluted discs, it is characterised in that:
The 24 tooth fluted disc is equipped with two groups of feature teeth positioned opposite；Wherein, one group of feature tooth is to lack a tooth, and another group of feature tooth is
Adjacent two lack a tooth.
One in another group of feature tooth described in the technical solution of signal fluted disc of the present invention lacks a tooth and is and one
Group feature tooth lacks a tooth face, is arranged symmetrically.
The present invention is found and the technical solution of detection piston position method is: a kind of to find and detect piston position
Method, it is characterised in that the following steps are included:
(1) a 24-3 tooth signal fluted disc is first made, which is equipped with two groups of features positioned opposite
Tooth, wherein one group of feature tooth is to lack a tooth, and another group of feature tooth is adjacent two and lacks a tooth, and 24-3 tooth signal fluted disc is cast
It makes at the camshaft of car engine gear back side, makes to lack on third tooth and the cam shaft gear after one group of feature tooth of a tooth
00 character position middle back side face；By electromagnetic sensor in gear chamber, i.e., in gear chamber on timing keyway locations；
(2) open engine ignition switch, ECU by electromagnetic sensor detect a scarce tooth one group of feature tooth or two
After another group of feature tooth for lacking a tooth, that is, it can determine the piston position of automobile engine；
When ECU detects one group of feature tooth of a scarce tooth by electromagnetic sensor, then can determine when ECU is passed by electromagnetism
Sensor detect one group of feature tooth for lacking a tooth after third tooth, the 7th tooth, the 11st tooth position set and be respectively
The 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead center position of third cylinder；
When ECU detects two neighboring another group of feature tooth for lacking a tooth by electromagnetic sensor, then it can determine and work as ECU
First tooth, the 5th tooth, the 9th tooth after detecting another group of feature tooth that this two lack a tooth by electromagnetic sensor
Position is respectively the 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead center position of third cylinder.
The present invention on 24 tooth fluted discs due to being equipped with two groups of feature teeth positioned opposite, wherein one group of feature tooth is to lack one
Tooth, another group of feature tooth are an adjacent two scarce teeth, thus, after opening engine ignition switch, if ECU passes through electromagnetism and passes
Sensor detects one group of feature tooth of a scarce tooth, then can determine when ECU detects this one group that lacks a tooth by electromagnetic sensor
It is respectively the 6th cylinder of the first cylinder of engine, second that third tooth 2, the 7th tooth after feature tooth, the 11st tooth position, which are set,
The 5th cylinder of cylinder, the 4th cylinder top dead center position of third cylinder realize quick start；If ECU detects adjacent two by electromagnetic sensor
A another group of feature tooth for lacking a tooth then can determine when ECU detects this two another groups for lacking a tooth by electromagnetic sensor
It is respectively the 6th cylinder of the first cylinder of engine, the second cylinder the 5th that first tooth, the 5th tooth after feature tooth, the 9th tooth position, which are set,
Cylinder, the 4th cylinder top dead center position of third cylinder realize quick start.The present invention have can faster, more acurrate find crankshaft and work
Position is filled in, thus the characteristics of realizing quick start engine.Present invention is mainly used for find piston position when engine start.
Detailed description of the invention
Fig. 1 is the exemplary waveform diagram of existing 24-1 tooth.
Fig. 2 is the structural schematic diagram of 24-3 tooth signal fluted disc of the present invention.
In figure: 1. 1 groups of feature teeth, 2. third teeth, 3. another groups of feature teeth, 4. first teeth.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figure 2.A kind of signal fluted disc of the present invention includes 24 tooth fluted discs, it is characterized in that being equipped with two groups on 24 tooth fluted discs
Feature tooth positioned opposite, wherein one group of feature tooth 1 is to lack a tooth, another group of feature tooth 3 is adjacent two and lacks a tooth.It is another
It is to lack a tooth face with one group of feature tooth 1, be arranged symmetrically that one in group feature tooth 3, which lacks a tooth,.
The present invention find and detection piston position method the following steps are included:
(1) a 24-3 tooth signal fluted disc is first made, which is equipped with two groups of features positioned opposite
Tooth, wherein one group of feature tooth 1 is to lack a tooth, and another group of feature tooth 3 is adjacent two and lacks a tooth；By 24-3 tooth signal fluted disc
It is cast in the camshaft of car engine gear back side, makes to lack third tooth 2 and camshaft tooth after one group of feature tooth 1 of a tooth
00 character position middle back side face on wheel；Timing key seat by electromagnetic sensor in gear chamber, i.e., in gear chamber
Position；Electromagnetic sensor rigging position is just to sense that 24-3 tooth is believed when engine piston is in a cylinder top dead center position
The third tooth 2 after a tooth is lacked in number fluted disc, while can sense 24-3 tooth signal teeth in cam shaft gear rotation
Institute in disk is with teeth；
(2) open engine ignition switch, ECU by electromagnetic sensor detect a scarce tooth one group of feature tooth 1 or two
After another group of feature tooth 3 for lacking a tooth, that is, it can determine the piston position of automobile engine；
When ECU detects one group of feature tooth 1 of a scarce tooth by electromagnetic sensor, then can determine when ECU passes through electromagnetism
Sensor detect one group of feature tooth 1 for lacking a tooth after third tooth 2, the 7th tooth, the 11st tooth position set and divide
It Wei not the 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead center position of third cylinder；
When ECU detects two neighboring another group of feature tooth 3 for lacking a tooth by electromagnetic sensor, then it can determine and work as
ECU by electromagnetic sensor detect this two lack a tooth another group of feature tooth 3 after first tooth 4, the 5th tooth, the 9th
It is respectively the 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead center position of third cylinder that a tooth position, which is set,.
When engine needs starting ignition, indirect belt moving cam shaft gear turns while starter drives crank rotation
It is dynamic, the information and when being transferred to ECU when electromagnetic sensor senses one group of feature tooth 1 of a scarce tooth, ECU will startup program,
Third tooth 2 i.e. in the signal fluted disc structure of 24-3 tooth after one group of feature tooth 1 of a scarce tooth is that the first cylinder of engine is living
Stop beyond the Great Wall, that is, ignition point, engine, which is just lighted a fire since the first cylinder, to be started.
The ignition order of engine is the first cylinder, the 5th cylinder, third cylinder, the 6th cylinder, the second cylinder, the 4th cylinder.That is camshaft
It rotates a Saturday cylinder all to light a fire once, be recycled with this.
When engine needs starting ignition, indirect belt moving cam shaft gear turns while starter drives crank rotation
It is dynamic, the information and when being transferred to ECU when electromagnetic sensor senses one group of feature tooth 1 of a scarce tooth, ECU will startup program A,
Third tooth 2 i.e. in the signal fluted disc structure of 24-3 tooth after one group of feature tooth 1 of a scarce tooth is that the first cylinder of engine is living
Stop beyond the Great Wall, that is, ignition point, engine, which is just lighted a fire since the first cylinder, to be started.
When electromagnetic sensor sense it is two neighboring lack a tooth another group of feature tooth 3, ECU will startup program B, that is, exist
First tooth 4 in 24-3 tooth signal fluted disc structure after two neighboring another group of feature tooth 3 for lacking a tooth is engine the 6th
The cylinder piston top dead centre, that is, ignition point, engine, which is just lighted a fire since the 6th cylinder, to be started.
Piston position signal is electromagnetic sensor by the signal teeth on camshaft, generates what electromagnetic signal was realized.
Thus base when this signal is the basis of ECU control engine, ignition system, fuel feed system of engine etc. all determine to be electricity
Magnetic Sensor generates what electromagnetic signal was realized by the signal teeth on camshaft.This signal is the base of ECU control engine
Thus base when plinth, ignition system, fuel feed system of engine etc. all determine.
Fluted disc is first changed to the fluted disc structure of 24-3 tooth by the present invention, and the angle of each tooth and tooth is 15 degree, when ECU is determined
After one cylinder or six the cylinder piston top dead centres, ECU can determine angle by the quantity for the tooth that electromagnetic sensor senses, from
And determine the top dead centre of each piston, that is, answer crankshaft often to take two turns one circle of cam shaft gear rotation, so every 60 degree are a work
Stop beyond the Great Wall.
Claims (3)
1. a kind of signal fluted disc, including 24-3 tooth fluted disc, it is characterised in that: the 24-3 tooth fluted disc is equipped with two groups of opposite centers of circle
The feature tooth of arrangement；Wherein, one group of feature tooth (1) is to lack a tooth, and another group of feature tooth (3) is adjacent with a tooth two sides each one
Tooth missing；The 24-3 tooth fluted disc is cast in the camshaft of car engine gear back side, makes one group of feature tooth (1) mistake for lacking a tooth
00 character position middle back side face on third tooth (2) and cam shaft gear afterwards.
2. a kind of signal fluted disc according to claim 1, it is characterised in that: one in another group of feature tooth (3)
A tooth missing is to lack a tooth face with one group of feature tooth (1), be arranged symmetrically.
3. a kind of method found using a kind of signal fluted disc described in as claimed in claim 1 or 22 and detect piston position, feature are existed
In the following steps are included:
(1) a 24-3 tooth signal fluted disc is first made, which is equipped with the feature of two groups of opposite center of circle arrangements
Tooth, wherein one group of feature tooth (1) is to lack a tooth, and another group of feature tooth (3) is that an each tooth adjacent with a tooth two sides lacks, will
24-3 tooth signal fluted disc is cast in the camshaft of car engine gear back side, makes to lack the after one group of feature tooth (1) of a tooth
00 character position middle back side face on three teeth (2) and cam shaft gear；By electromagnetic sensor in gear chamber, i.e.,
On timing keyway locations in gear chamber；
(2) open engine ignition switch, ECU by electromagnetic sensor detect a scarce tooth one group of feature tooth (1) or two one
After another group of feature tooth (3) of tooth missing, that is, it can determine the piston position of automobile engine；
When ECU detects one group of feature tooth (1) of a scarce tooth by electromagnetic sensor, then can determine when ECU is passed by electromagnetism
Sensor detect one group of feature tooth (1) for lacking a tooth after third tooth (2), the 7th tooth, the 11st tooth position set i.e.
Respectively the 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead center position of third cylinder；
When ECU detects another group of feature tooth (3) of two neighboring tooth missing by electromagnetic sensor, then it can determine and work as
ECU by electromagnetic sensor detect two teeth missing another group of feature tooth (3) after first tooth (4), the 5th
It is respectively the 6th cylinder of the first cylinder of engine, the 5th cylinder of the second cylinder, the 4th cylinder top dead centre position of third cylinder that tooth, the 9th tooth position, which are set,
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655273.9A CN106121818B (en) | 2016-08-11 | 2016-08-11 | A kind of signal fluted disc and searching and the method for detecting piston position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655273.9A CN106121818B (en) | 2016-08-11 | 2016-08-11 | A kind of signal fluted disc and searching and the method for detecting piston position |
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| Publication Number | Publication Date |
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| CN106121818A CN106121818A (en) | 2016-11-16 |
| CN106121818B true CN106121818B (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610655273.9A Active CN106121818B (en) | 2016-08-11 | 2016-08-11 | A kind of signal fluted disc and searching and the method for detecting piston position |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110671204B (en) * | 2019-09-30 | 2021-05-18 | 潍柴动力股份有限公司 | Control method of engine system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100379A (en) * | 2013-04-01 | 2014-10-15 | 北汽福田汽车股份有限公司 | Engine gas distribution system and engine phase judging method of engine gas distribution system |
| CN204646349U (en) * | 2015-04-28 | 2015-09-16 | 宁波金鑫粉末冶金有限公司 | A kind of automobile camshaft signal panel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3651088B2 (en) * | 1995-11-30 | 2005-05-25 | 株式会社デンソー | Control device for internal combustion engine |
| JP4075205B2 (en) * | 1999-04-15 | 2008-04-16 | 株式会社デンソー | Control device for internal combustion engine |
| JP2003184629A (en) * | 2001-12-20 | 2003-07-03 | Denso Corp | Crank angle determining device for internal combustion engine |
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2016
- 2016-08-11 CN CN201610655273.9A patent/CN106121818B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100379A (en) * | 2013-04-01 | 2014-10-15 | 北汽福田汽车股份有限公司 | Engine gas distribution system and engine phase judging method of engine gas distribution system |
| CN204646349U (en) * | 2015-04-28 | 2015-09-16 | 宁波金鑫粉末冶金有限公司 | A kind of automobile camshaft signal panel |
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| CN106121818A (en) | 2016-11-16 |
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