CN107100750A - A kind of clear carbon distribution method of the self study of EGR valve - Google Patents
A kind of clear carbon distribution method of the self study of EGR valve Download PDFInfo
- Publication number
- CN107100750A CN107100750A CN201710439131.3A CN201710439131A CN107100750A CN 107100750 A CN107100750 A CN 107100750A CN 201710439131 A CN201710439131 A CN 201710439131A CN 107100750 A CN107100750 A CN 107100750A
- Authority
- CN
- China
- Prior art keywords
- egr valve
- motor
- maximum
- self study
- carbon distribution
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The present invention relates to a kind of clear carbon distribution method of self study of EGR valve, including：First upper electricity, motor rotate counterclockwise, the counter values that motor drives executing agency to close in EGR valve, electric machine controller are 0；Motor turns clockwise, and once, counter values add 1 to each magnetic pole cutting Hall；When motor turns clockwise it is motionless when, executing agency opens EGR valve completely, the record now cumulative maximum of rolling counters forward；By the maximum of counter engine controller is given by CAN interface；ECU controls the aperture of EGR valve as needed in traveling afterwards；Hereafter after every train starts, repeat step one, two, three.Reliability of the present invention is high, due to eliminating position sensor, reduces trouble point, enhances reliability；Accuracy is high, for the analog representation aperture than the position sensor of like product, it is to avoid produce drift with temperature, and the degree of accuracy is higher.
Description
Technical field
The present invention relates to technical field of engines, especially a kind of clear carbon distribution method of the self study of EGR valve.
Background technology
EGR valve is the most key part in EGR technology, and the reliability of its service behaviour directly constrains exhausted air quantity control
The accuracy of system, EGR valve is installed on the engine, for controlling the amount of recirculated exhaust gas into gas handling system.Most of EGR valves
For DC motor Driver, position sensor is integrated with EGR valve, it exports aperture and feedback voltage is linear, but in length
During the use of phase, carbon distribution and coking invest valve block outer surface, the valve block constantly reason such as abrasion and cause linear variation,
Need to detect again by ECU, record EGR valve standard-sized sheet, it is fully closed when the magnitude of voltage that feeds back, and it is defeated with this to reformulate sensor
The characteristic curve gone out.The process for reformulating Sensor Output Characteristic curve is referred to as EGR valve self study, and whether EGR valve self study
The control accuracy of EGR valve is successfully directly connected to, and then influences the emission control of engine.
At present, the self-learning method of widely used EGR valve is, after upper electricity ECU immediately by controlling EGR valve standard-sized sheet, it is complete
Pass action carries out self study several times.This method has the following disadvantages：First, during using above-mentioned EGR valve self-learning method, upper electricity
Self study is put at once, and now EGR is also in cold conditions, and its position causes position sensor to measure minimax feedback due to coking
Value is inaccurate, with it is hot when have larger gap；Second, EGR valve after self study, long-time is carried out using above-mentioned closed-loop control
Dead-center position can drift about, and it is devious that at this moment position sensor, which must arrive position,.
The content of the invention
It is an object of the invention to provide a kind of self-learning method for optimizing EGR valve, the accurate of EGR valve self study is lifted
Property, it is ensured that the clear carbon distribution method of self study of the control accuracy of EGR valve and the EGR valve of functional reliability.
To achieve the above object, present invention employs following technical scheme：A kind of clear carbon distribution method of the self study of EGR valve,
The step of this method includes following order：
（1）First upper electricity, motor rotate counterclockwise, motor drives executing agency closing EGR valve, i.e. motor to turn motionless,
And set this position to be that the counter values in original position, electric machine controller are 0；
（2）Motor turns clockwise, and the Hall of fixed position is first inside cutting motor when the magnetic pole on rotor rotates
Part, once, Hall element produces an electric pulse to each magnetic pole cutting Hall, and counter values add 1；
（3）When motor turns clockwise it is motionless when, executing agency opens EGR valve completely, record now rolling counters forward
Cumulative maximum, the maximum opening of this maximum correspondence EGR valve；
（4）By the maximum of counter engine controller is given by CAN interface；
（5）ECU controls the aperture of EGR valve as needed in traveling afterwards；
（6）Hereafter after every train starts, repeat step（1）、（2）、（3）.
The electric machine controller is communicated by CAN and engine controller.
As shown from the above technical solution, beneficial effects of the present invention are as follows：First, reliability is high, due to eliminating position
Sensor, reduces trouble point, enhances reliability；Second, accuracy is high, due to being that internal cutting Hall element is counted in due order
Number, that is, what is handled is that digital quantity represents aperture, for the analog representation aperture than the position sensor of like product, it is to avoid with
Temperature produces drift, and the degree of accuracy is higher；3rd, position sensor is eliminated, EGR components is reduced, has saved cost.
Brief description of the drawings
Fig. 1 is EGR valve motor internal section of structure.
Embodiment
As shown in figure 1, a kind of clear carbon distribution method of the self study of EGR valve, the step of this method includes following order：
（1）First upper electricity, motor rotate counterclockwise, motor drives executing agency closing EGR valve, i.e. motor to turn motionless,
And set this position to be that the counter values in original position, electric machine controller are 0；
（2）Motor turns clockwise, and the Hall of fixed position is first inside cutting motor when the magnetic pole on rotor rotates
Part, once, Hall element produces an electric pulse to each magnetic pole cutting Hall, and counter values add 1；
（3）When motor turns clockwise it is motionless when, executing agency opens EGR valve completely, record now rolling counters forward
Cumulative maximum, the maximum opening of this maximum correspondence EGR valve；
（4）By the maximum of counter engine controller is given by CAN interface；
（5）ECU controls the aperture of EGR valve as needed in traveling afterwards；
（6）Hereafter after every train starts, repeat step（1）、（2）、（3）.
The electric machine controller is communicated by CAN and engine controller.
As shown in figure 1, being provided with the stator of stator slot 2 fixed in whole system, coil is placed with stator slot 2.
Rotor equipped with axle 3 and rotor magnetic pole 4 is placed through diameter of stator bore, and bearing is installed at the two ends of rotor, and the rotor with bearing is same
Sample is filled in the entire system, and rotor keeps certain axiality requirement with stator.Hall 1 is fixed on circuit board, and circuit board is solid
Determine onto this system, Hall 1 keeps concentric with rotor magnetic pole 4 and is uniformly distributed.
In summary, reliability of the present invention is high, due to eliminating position sensor, reduces trouble point, enhances reliable
Property；Accuracy is high, and due to being that internal cutting Hall element is counted in due order, that is, what is handled is that digital quantity represents aperture, than similar production
For the analog representation aperture of the position sensor of product, it is to avoid produce drift with temperature, the degree of accuracy is higher；Eliminate position biography
Sensor, reduces EGR components, has saved cost.
Claims (2)
1. a kind of clear carbon distribution method of the self study of EGR valve, it is characterised in that：The step of this method includes following order：
（1）First upper electricity, motor rotate counterclockwise, motor drives executing agency closing EGR valve, i.e. motor to turn motionless,
And set this position to be that the counter values in original position, electric machine controller are 0；
（2）Motor turns clockwise, and the Hall of fixed position is first inside cutting motor when the magnetic pole on rotor rotates
Part, once, Hall element produces an electric pulse to each magnetic pole cutting Hall, and counter values add 1；
（3）When motor turns clockwise it is motionless when, executing agency opens EGR valve completely, record now rolling counters forward
Cumulative maximum, the maximum opening of this maximum correspondence EGR valve；
（4）By the maximum of counter engine controller is given by CAN interface；
（5）ECU controls the aperture of EGR valve as needed in traveling afterwards；
（6）Hereafter after every train starts, repeat step（1）、（2）、（3）.
2. the clear carbon distribution method of the self study of EGR valve according to claim 1, it is characterised in that：The electric machine controller leads to
CAN is crossed to communicate with engine controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439131.3A CN107100750B (en) | 2017-06-12 | 2017-06-12 | A kind of clear carbon distribution method of the self study of EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439131.3A CN107100750B (en) | 2017-06-12 | 2017-06-12 | A kind of clear carbon distribution method of the self study of EGR valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100750A true CN107100750A (en) | 2017-08-29 |
| CN107100750B CN107100750B (en) | 2019-06-04 |
Family
ID=59660634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439131.3A Active CN107100750B (en) | 2017-06-12 | 2017-06-12 | A kind of clear carbon distribution method of the self study of EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100750B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644024A (en) * | 2018-04-27 | 2018-10-12 | 安徽江淮汽车集团股份有限公司 | A kind of control method of diesel engine EGR valve |
| CN110630412A (en) * | 2019-09-29 | 2019-12-31 | 潍柴动力股份有限公司 | Control method and system of EGR valve and storage medium |
| CN112648115A (en) * | 2020-12-24 | 2021-04-13 | 潍柴动力股份有限公司 | Engine EGR self-cleaning method and device |
| CN112648087A (en) * | 2020-12-07 | 2021-04-13 | 潍柴动力股份有限公司 | Self-learning control method and device for engine EGR valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4433666A (en) * | 1981-04-07 | 1984-02-28 | Nissan Motor Co., Limited | Exhaust gas recirculation system for diesel engine |
| CN101054934A (en) * | 2006-04-12 | 2007-10-17 | 株式会社电装 | Throttle control apparatus and method for throttle control |
| CN101228345A (en) * | 2005-07-25 | 2008-07-23 | 丰田自动车株式会社 | Valve control device and method for internal combustion engine |
| CN103277573A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Method for improving precision of electric exhaust gas recirculation (EGR) valve |
| CN103362694A (en) * | 2012-04-09 | 2013-10-23 | 株式会社电装 | Exhaust gas recirculation device |
| CN104863731A (en) * | 2015-06-08 | 2015-08-26 | 潍柴动力股份有限公司 | Self-cleaning method for EGR valve |
-
2017
- 2017-06-12 CN CN201710439131.3A patent/CN107100750B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4433666A (en) * | 1981-04-07 | 1984-02-28 | Nissan Motor Co., Limited | Exhaust gas recirculation system for diesel engine |
| CN101228345A (en) * | 2005-07-25 | 2008-07-23 | 丰田自动车株式会社 | Valve control device and method for internal combustion engine |
| CN101054934A (en) * | 2006-04-12 | 2007-10-17 | 株式会社电装 | Throttle control apparatus and method for throttle control |
| CN103362694A (en) * | 2012-04-09 | 2013-10-23 | 株式会社电装 | Exhaust gas recirculation device |
| CN103277573A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Method for improving precision of electric exhaust gas recirculation (EGR) valve |
| CN104863731A (en) * | 2015-06-08 | 2015-08-26 | 潍柴动力股份有限公司 | Self-cleaning method for EGR valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644024A (en) * | 2018-04-27 | 2018-10-12 | 安徽江淮汽车集团股份有限公司 | A kind of control method of diesel engine EGR valve |
| CN110630412A (en) * | 2019-09-29 | 2019-12-31 | 潍柴动力股份有限公司 | Control method and system of EGR valve and storage medium |
| CN112648087A (en) * | 2020-12-07 | 2021-04-13 | 潍柴动力股份有限公司 | Self-learning control method and device for engine EGR valve |
| CN112648115A (en) * | 2020-12-24 | 2021-04-13 | 潍柴动力股份有限公司 | Engine EGR self-cleaning method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100750B (en) | 2019-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107100750A (en) | A kind of clear carbon distribution method of the self study of EGR valve | |
| US8887560B2 (en) | Electric actuation of a valve based on knowledge of the closing time of the valve | |
| JP6114697B2 (en) | Method for controlling an internal combustion engine | |
| JP3744486B2 (en) | Oxygen sensor degradation detector | |
| US9322480B2 (en) | Turbocharger arrangement and set of feedbacks for electric actuator control | |
| CN110476345A (en) | The control method of motor driver and motor driver | |
| KR20120052978A (en) | Determining the closing time of a fuel injection valve based on evaluating the actuation voltage | |
| CN102582600A (en) | Brake force real-time adjusting method based on brake-by-wire system and adjusting device | |
| JP2006207387A (en) | On-vehicle engine control device | |
| US10260448B2 (en) | Fuel injection control device for internal combustion engine | |
| US20130073182A1 (en) | Method and system for improving fuel economy and controlling engine emissions | |
| US9116075B2 (en) | Method for checking a function of an outlet valve | |
| CN102454504B (en) | Deterioration determination apparatus for airflow meter and deterioration determination method | |
| CN103511130B (en) | Control valve device | |
| CN101394147B (en) | DC motor speed control device and method | |
| KR101832637B1 (en) | Method for determining the valve opening moment in piezo servo-driven injectors | |
| JP6115510B2 (en) | Fully closed position learning device | |
| US20130214714A1 (en) | Method and device for controlling a synchronous machine | |
| US9322345B2 (en) | Electric actuator temperature estimation | |
| CN203657943U (en) | Friction torque test device of camshaft phase regulator | |
| JP2020094532A (en) | Control device of internal combustion engine | |
| CN101968008B (en) | Error correcting method for step out of stepping motor | |
| CN106769072B (en) | The aging testing method of three-way catalyst | |
| CN105651323A (en) | Active prediction method for soft fault of sensor based on GM (1, 1) model | |
| JPH08326581A (en) | Fuel injection quantity control device for internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230000 No. 59 Buddha Road, Hefei economic and Technological Development Zone, Anhui Co-patentee after: BEIJING BRANCH, HEFEI WAL FUEL SYSTEMS CO.,LTD. Patentee after: Anhui Weil Low Carbon Technology Co.,Ltd. Address before: 230601 No. 59 Buddha Road, Jing Kai District, Hefei City, Anhui, Hefei Co-patentee before: BEIJING BRANCH, HEFEI WAL FUEL SYSTEMS CO.,LTD. Patentee before: WAL FUEL SYSTEMS (HEFEI) LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230000 No. 59 Buddha Road, Hefei economic and Technological Development Zone, Anhui Patentee after: Anhui Weil Low Carbon Technology Co.,Ltd. Patentee after: Anhui Weill Low Carbon Technology Co.,Ltd. Beijing Branch Address before: 230000 No. 59 Buddha Road, Hefei economic and Technological Development Zone, Anhui Patentee before: Anhui Weil Low Carbon Technology Co.,Ltd. Patentee before: BEIJING BRANCH, HEFEI WAL FUEL SYSTEMS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230705 Address after: No.59, fozhang Road, Hefei Economic and Technological Development Zone, Anhui 230000 Patentee after: Anhui Weil Low Carbon Technology Co.,Ltd. Patentee after: Hefei Weilin New Energy Co.,Ltd. Address before: No.59, fozhang Road, Hefei Economic and Technological Development Zone, Anhui 230000 Patentee before: Anhui Weil Low Carbon Technology Co.,Ltd. Patentee before: Anhui Weill Low Carbon Technology Co.,Ltd. Beijing Branch |