CN201747481U - EGR system control device - Google Patents
EGR system control device Download PDFInfo
- Publication number
- CN201747481U CN201747481U CN2010202211042U CN201020221104U CN201747481U CN 201747481 U CN201747481 U CN 201747481U CN 2010202211042 U CN2010202211042 U CN 2010202211042U CN 201020221104 U CN201020221104 U CN 201020221104U CN 201747481 U CN201747481 U CN 201747481U
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- CN
- China
- Prior art keywords
- cooler
- control unit
- egr system
- waste gas
- electronic control
- 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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- 239000002912 waste gas Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 19
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses an EGR system control device, comprising an engine block, an exhaust manifold, a pressurizer, a one-way valve, an EGR valve, a Venturi tube, a throttling valve, an intercooler, an intake manifold, an electronic control unit ECU, a main cooler and a subcooler, wherein the main cooler and the subcooler are connected with an intake connecting tube, and a temperature sensor is arranged in a pipeline between the main cooler and the subcooler; the electronic control unit ECU is used for processing a signal and then controlling the opening and bypass of the main cooler and the water flow of the subcooler according to the temperature signal of waste gas in the pipeline collected by the temperature sensor. With the structure, the EGR system control device has the advantages that the device can cool waste gas in the intake connecting tube according to the real temperature of the waste gas; an oxidation type catalyzing device is used for processing parts of particles in the waste gas entering a cylinder, so the dirt of an EGR system is reduced, the abrasion of a piston and a cylinder sleeve is reduced, and the using life of components is prolonged.
Description
Technical field
The utility model relates to the Exhaust Control of Engine technical field, particularly a kind of egr system control gear.
Background technique
Gas recirculation system (EGR) is used for reducing the concentration that the indoor combustion temperature of engine combustion realizes reducing the oxynitrides (NOx) in the exhaust.The EGR technology of motor is divided into internal EGR technology and outside EGR technology, the internal EGR technology just is meant and allows a part of waste gas not discharge motor, dilute mixed air before leaving burning next time for, internal EGR is to control by the time of exhaust valve closing, promptly regulates by distribution device.The disadvantage of this mode is that exhaust gas temperature is non-adjustable; Outside EGR is meant that by pipeline the part in the waste gas being guided to intake manifold and fresh mixed air enters cylinder once more after mixed and participate in burning.Outside EGR often has the following disadvantages: 1, waste gas and fresh air mix inhomogeneous; 2, waste gas flows backwards, and the oil in the waste gas of refluence can cause the pollution of egr system; 3, it is non-adjustable to enter the exhaust gas temperature of air inlet tube; 4, egr system dirt; 5, exist suction pressure greater than exhaust pressure under the part operating mode.In sum, there is the nonadjustable defective of exhaust gas temperature in common egr system at present.
The model utility content
Technical problem to be solved in the utility model is that at the deficiencies in the prior art, providing a kind of can carry out the cooled EGR system controller to waste gas in the air inlet tube according to the real time temperature of waste gas.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of egr system control gear, comprise engine cylinder-body, gas exhaust manifold, one-way valve, the EGR valve, literary composition Qiu Li pipe, throttle valve, intercooler, intake manifold and electronic control unit ECU, described one-way valve and EGR valve are installed in the air inlet tube between intake manifold and the gas exhaust manifold, described device also comprises primary cooler and supplementary cooler, the suction port of described primary cooler is connected with air inlet tube respectively with the air outlet, the suction port of described supplementary cooler is connected with air inlet tube respectively with the air outlet, in the pipeline between described primary cooler and the supplementary cooler temperature transducer is housed;
Described electronic control unit ECU is used for the temperature signal according to the pipeline waste gas of temperature transducer collection, controls opening and bypass of primary cooler after the processing signals respectively, and the water flow of control supplementary cooler.
In the pipeline between the suction port of described primary cooler and the described gas exhaust manifold oxidation catalyst is installed.
Described temperature transducer is connected with the input end of electronic control unit ECU.
Described primary cooler is connected with the output terminal of electronic control unit ECU;
The intake of described supplementary cooler is connected with electronic water pump, and described electronic water pump is connected with electronic control unit ECU;
The temperature signal of waste gas is controlled electronic water pump in the pipeline that described electronic control unit ECU reception temperature transducer is gathered after the processing signals, and then the water flow of control supplementary cooler.
The utility model adopts said structure, has the following advantages: 1, can waste gas in the air inlet tube be cooled off according to the real time temperature of waste gas, according to the actual temp of waste gas, rationally control the working state of primary cooler and supplementary cooler; 2, oxidation catalyst is handled the part particle that enters in the waste gas in the cylinder, reduces the dirt of egr system on the one hand, reduces the wearing and tearing of piston, cylinder sleeve on the other hand, improves the working life of parts.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is a structural representation of the present utility model;
Fig. 2 controls the logical construction block diagram of primary cooler and supplementary cooler respectively according to the signal of temperature transducer collection for electronic control unit ECU in the utility model;
In Fig. 1～Fig. 2,1, primary cooler; 2, supplementary cooler; 3, air inlet tube; 4, temperature transducer; 5, gas exhaust manifold; 6, oxidation catalyst; 7, electronic water pump; 8, engine cylinder-body; 10, one-way valve; 11, EGR valve; 12, civilian Qiu Li pipe; 13, throttle valve; 14, intercooler; 15, intake manifold.
Embodiment
As Fig. 1～a kind of egr system control gear shown in Figure 2, comprise engine cylinder-body 8, gas exhaust manifold 5, one-way valve 10, EGR valve 11, literary composition Qiu Li pipe 12, throttle valve 13, intercooler 14, intake manifold 15 and electronic control unit ECU, one-way valve 10 and EGR valve 11 are installed in the air inlet tube 3 between intake manifold 15 and the gas exhaust manifold 5, device also comprises primary cooler 1 and supplementary cooler 2, the suction port of primary cooler 1 is connected with air inlet tube 3 respectively with the air outlet, the suction port of supplementary cooler 2 is connected with air inlet tube 3 respectively with the air outlet, in the pipeline between primary cooler 1 and the supplementary cooler 2 temperature transducer 4 is housed.
In the pipeline between the suction port of primary cooler 1 and the described gas exhaust manifold 5 oxidation catalyst 6 is installed, the carrier of oxidation catalyst 6 adopts metallic carrier, THC, part particle that 6 pairs of oxidation catalyst enter in the interior waste gas of cylinder are handled, and reduce the dirt of egr system on the one hand; Reduce the wearing and tearing of piston, cylinder sleeve on the other hand, improve the working life of parts.The intake of supplementary cooler 2 is connected with electronic water pump 7, and electronic water pump 7 is connected with electronic control unit ECU; The temperature signal of waste gas in the pipeline that electronic control unit ECU reception temperature transducer 4 is gathered, control electronic water pump 7 after the processing signals, and then the water flow of control supplementary cooler 2.
Judge whether proper functioning of egr system according to the measured temperature of waste gas, as the input of OBD.
This device is divided into four kinds of adjusting patterns:
Pattern one: cold start-up, idling pattern; Waste gas directly enters air inlet tube 3 without primary cooler 1 and supplementary cooler 2, and purpose reduces CH, CO discharging and auxiliary engine starts fast.
Pattern two: little load, temperature transducer 4 feedback temperature are 100 ℃ to 200 ℃ patterns; Electronic control unit ECU control primary cooler 1 is closed, open auxiliary cooler 2, waste gas is without primary cooler 1, cool off by supplementary cooler 2, electronic control unit ECU regulates electronic water pump 7 controls according to temperature transducer 4 values of feedback and enters the water flow of supplementary cooler 2, thereby reaches the control exhaust gas temperature.
Pattern three: medium and small load, temperature transducer 4 feedback temperature are 200 ℃ to 300 ℃ patterns; Electronic control unit ECU control primary cooler 1 is opened, and closes supplementary cooler 2, and waste gas does not cool off by supplementary cooler 2 through primary cooler 1.
Pattern four: middle load and above operating mode, temperature transducer 4 feedback temperature are in pattern more than 300 ℃; Electronic control unit ECU control primary cooler 1 and supplementary cooler 2 are all opened, waste gas cools off through primary cooler 1, supplementary cooler 2, regulate electronic water pump 7 controls according to temperature transducer 4 values of feedback and enter the water flow of supplementary cooler 2, thereby reach the control exhaust gas temperature.Above control mode only is an illustrative nature, can do suitable adjustment according to deployment scenarios in actual applications.
EGR valve 11 cold junctions arrange, have shortened the response time that waste gas enters air inlet tube 3.Throttle valve 13, civilian Qiu Li pipe 12 are integrated on the intake manifold 15.Adopt throttle valve 13, civilian Qiu Li pipe 12,, realize exhaust gas recirculation at the import and export generation pressure reduction of egr system.On the pipeline of exhaust gas recirculation, arrange one-way valve 10, prevent that waste gas flows backwards under the part operating mode.
Native system promptly also is applicable to non-supercharged engine applicable to supercharged engine, and EGR waste gas is taken from gas exhaust manifold 5 house stewards place, and primary cooler 1 is fetched water from engine cylinder-body, and the water intaking position is as far as possible near water pump, before the backwater position is arranged in pump.The peak rate of flow of cooling water design reaches emission standard according to the discharge capacity of motor and institute and decides.Supplementary cooler 2 is supplied water by electronic water pump 7, and electronic water pump 7 water intaking positions are after the car load radiator, before the engine water pump; The backwater position of supplementary cooler 2 is arranged in before the car load radiator, after the motor thermoregulator.The characteristic of literary composition Qiu Li pipe 12 is according to intake and exhaust pressure reduction appropriate design.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.
Claims (5)
1. egr system control gear, comprise engine cylinder-body (8), gas exhaust manifold (5), one-way valve (10), EGR valve (11), literary composition Qiu Li pipe (12), throttle valve (13), intercooler (14), intake manifold (15) and electronic control unit (ECU), described one-way valve (10) and EGR valve (11) are installed in the air inlet tube (3) between intake manifold (15) and the gas exhaust manifold (5), it is characterized in that: described device also comprises primary cooler (1) and supplementary cooler (2), the suction port of described primary cooler (1) is connected with air inlet tube (3) respectively with the air outlet, the suction port of described supplementary cooler (2) is connected with air inlet tube (3) respectively with the air outlet, in the pipeline between described primary cooler (1) and the supplementary cooler (2) temperature transducer (4) is housed;
Described electronic control unit (ECU) is used for the temperature signal according to the pipeline waste gas of temperature transducer (4) collection, controls opening and bypass of primary cooler (1) after the processing signals respectively, and the water flow of control supplementary cooler (2).
2. a kind of egr system control gear according to claim 1 is characterized in that: in the pipeline between the suction port of described primary cooler (1) and the described gas exhaust manifold (5) oxidation catalyst (6) is installed.
3. a kind of egr system control gear according to claim 1 is characterized in that: described temperature transducer (4) is connected with the input end of electronic control unit (ECU).
4. a kind of egr system control gear according to claim 1 is characterized in that: described primary cooler (1) is connected with the output terminal of electronic control unit (ECU);
5. a kind of egr system control gear according to claim 1 is characterized in that: the intake of described supplementary cooler (2) is connected with electronic water pump (7), and described electronic water pump (7) is connected with electronic control unit (ECU);
The temperature signal of waste gas is controlled electronic water pump (7) in the pipeline that described electronic control unit (ECU) reception temperature transducer (4) is gathered after the processing signals, and then the water flow of control supplementary cooler (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202211042U CN201747481U (en) | 2010-06-02 | 2010-06-02 | EGR system control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202211042U CN201747481U (en) | 2010-06-02 | 2010-06-02 | EGR system control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747481U true CN201747481U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202211042U Expired - Fee Related CN201747481U (en) | 2010-06-02 | 2010-06-02 | EGR system control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747481U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937057A (en) * | 2012-10-29 | 2013-02-20 | 长城汽车股份有限公司 | Engine EGR (exhaust gas recirculation) system |
| CN103114916A (en) * | 2013-02-28 | 2013-05-22 | 长城汽车股份有限公司 | EGR (exhaust gas recirculation) control system |
| CN103362622A (en) * | 2012-03-29 | 2013-10-23 | 广西玉柴机器股份有限公司 | Engine cooling circulating system |
| CN103485937A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Engine EGR (Exhaust Gas Recirculation) system |
| CN107288782A (en) * | 2017-08-22 | 2017-10-24 | 芜湖恒耀汽车零部件有限公司 | A kind of vehicle exhaust EGR |
| CN107642411A (en) * | 2016-07-22 | 2018-01-30 | 福特环球技术公司 | For the system and method for the water for being used for water injection from exhaust extraction |
| CN107740739A (en) * | 2017-11-13 | 2018-02-27 | 武汉理工大学 | Variable cooling EGR gas handling systems and the waste gas processing method based on it |
| CN109372660A (en) * | 2018-12-14 | 2019-02-22 | 中国重汽集团济南动力有限公司 | A kind of protection system of EGR cooling gas check valve, method and vehicle |
| CN109973261A (en) * | 2019-03-29 | 2019-07-05 | 潍柴动力股份有限公司 | Cooler for recycled exhaust gas, cooler for recycled exhaust gas control system and its control method |
| CN110953096A (en) * | 2018-09-26 | 2020-04-03 | 广州汽车集团股份有限公司 | Gasoline engine and combustion control method thereof |
-
2010
- 2010-06-02 CN CN2010202211042U patent/CN201747481U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362622A (en) * | 2012-03-29 | 2013-10-23 | 广西玉柴机器股份有限公司 | Engine cooling circulating system |
| CN102937057A (en) * | 2012-10-29 | 2013-02-20 | 长城汽车股份有限公司 | Engine EGR (exhaust gas recirculation) system |
| CN102937057B (en) * | 2012-10-29 | 2015-08-05 | 长城汽车股份有限公司 | A kind of engine exhaust-gas recirculating system |
| CN103114916A (en) * | 2013-02-28 | 2013-05-22 | 长城汽车股份有限公司 | EGR (exhaust gas recirculation) control system |
| CN103485937A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Engine EGR (Exhaust Gas Recirculation) system |
| CN107642411A (en) * | 2016-07-22 | 2018-01-30 | 福特环球技术公司 | For the system and method for the water for being used for water injection from exhaust extraction |
| CN107642411B (en) * | 2016-07-22 | 2022-04-15 | 福特环球技术公司 | System and method for extracting water for water injection from exhaust gas |
| CN107288782A (en) * | 2017-08-22 | 2017-10-24 | 芜湖恒耀汽车零部件有限公司 | A kind of vehicle exhaust EGR |
| CN107740739A (en) * | 2017-11-13 | 2018-02-27 | 武汉理工大学 | Variable cooling EGR gas handling systems and the waste gas processing method based on it |
| CN110953096A (en) * | 2018-09-26 | 2020-04-03 | 广州汽车集团股份有限公司 | Gasoline engine and combustion control method thereof |
| CN109372660A (en) * | 2018-12-14 | 2019-02-22 | 中国重汽集团济南动力有限公司 | A kind of protection system of EGR cooling gas check valve, method and vehicle |
| CN109973261A (en) * | 2019-03-29 | 2019-07-05 | 潍柴动力股份有限公司 | Cooler for recycled exhaust gas, cooler for recycled exhaust gas control system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20150602 |
|
| EXPY | Termination of patent right or utility model |