CN111237100A - EGR valve and mixer heating control method and system - Google Patents
EGR valve and mixer heating control method and system Download PDFInfo
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- CN111237100A CN111237100A CN202010159362.0A CN202010159362A CN111237100A CN 111237100 A CN111237100 A CN 111237100A CN 202010159362 A CN202010159362 A CN 202010159362A CN 111237100 A CN111237100 A CN 111237100A
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- mixer
- egr valve
- engine
- heating
- temperature
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Classifications
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- 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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
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- 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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
Abstract
The invention discloses a heating control method for an EGR valve and a mixer, which relates to the EGR valve and the mixer and mainly solves the technical problem that the existing EGR valve and mixer are frozen to influence the running of an engine, and the method comprises the following steps: acquiring an ambient temperature or a mixer outlet temperature; heating the EGR valve and the mixer when the ambient temperature and the mixer outlet temperature are both below a first threshold; stopping heating the EGR valve and mixer when the ambient temperature or mixer outlet temperature is above a second threshold. The invention also discloses an EGR valve and a mixer heating control system. The invention can effectively solve the problem of icing of the existing EGR valve and mixer.
Description
Technical Field
The present invention relates to EGR valves and mixers, and more particularly, to an EGR valve and mixer heating control method and system.
Background
A mainstream engine control system currently employing EGR technology is shown in fig. 1, in which a part of exhaust gas burned from an engine cylinder a passes through an EGR cooler B and an EGR valve C, and enters a mixer D. The main problems of the current mainstream EGR (exhaust gas recirculation) control system are: gaseous water generated by combustion in the engine cylinder A is cooled to a rear exhaust gas pipeline of an EGR cooler B through the EGR cooler B; when the engine runs at high speed and high load for a long time, the opening degree of the EGR valve C is kept in a state of opening a larger opening degree; however, when the operating condition of the engine changes greatly or is in a low-speed, small-load and idling condition for a long time, the opening degree of the EGR valve C is very small or even is not opened; in cold weather conditions, hot gaseous water in a rear exhaust gas pipeline of the EGR cooler B, a connecting pipeline of the EGR valve C and a connecting pipeline of the mixer D is easy to be cooled and frozen, so that a series of fault conditions such as flameout or incapability of starting in the running process of the engine are caused.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems of the prior art, and an object of the present invention is to provide an EGR valve and a mixer heating control method that can effectively solve the problem of icing of the EGR valve and the mixer.
The invention also aims to provide an EGR valve and mixer heating control system which can effectively solve the problem of icing of the EGR valve and the mixer.
In order to achieve the first purpose, the invention provides an EGR valve and a mixer heating control method, which obtain the ambient temperature and the outlet temperature of a mixer; heating the EGR valve and the mixer when the ambient temperature and the mixer outlet temperature are both below a first threshold; when the ambient or mixer outlet temperature is above a second threshold, heating of the EGR valve and mixer is stopped.
As a further improvement, when the engine is in a non-warm-up operation condition, the EGR valve and the mixer are heated by an electric auxiliary heating device; when the engine is in a warm-up cycle, heating of the EGR valve and mixer is stopped.
Further, the EGR valve and mixer are heated by engine coolant when the engine is operating at full operating conditions.
Further, the EGR valve and the mixer are heated by an electric auxiliary heating device and an engine coolant, and the method specifically includes:
when the engine is started in a cold mode or the temperature of the engine coolant is lower than a first set value, heating the EGR valve and the mixer by using an electric auxiliary heating device;
the EGR valve and the mixer are heated using the engine coolant when the engine coolant temperature is higher than a second set value.
Further, the EGR valve and the mixer are heated by an electric auxiliary heating device and an engine coolant, and the method specifically includes:
when the engine is in a non-warm-up operation working condition, heating the EGR valve and the mixer by using an electric auxiliary heating device;
the EGR valve and mixer are heated using engine coolant after the engine is in a warm-up cycle.
In order to achieve the second purpose, the invention provides an EGR valve and mixer heating control system, which comprises a shell for wrapping the EGR valve and the mixer, wherein an electric auxiliary heating device electrically connected with an engine controller is arranged on the periphery of the shell.
As a further improvement, the electric auxiliary heating device comprises a temperature control module electrically connected with the engine controller and a heating wire electrically connected with the temperature control module.
Further, the heating wire wraps the housing.
Furthermore, both ends of the shell are respectively provided with a liquid inlet pipe used for being connected with an outlet of the engine cooling liquid and a liquid outlet pipe used for being connected with an inlet of the engine cooling liquid.
Furthermore, the liquid inlet pipe is provided with a control valve which is electrically connected with the engine controller.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the problem that the running of the engine is influenced by icing of the existing EGR valve and mixer can be effectively solved by acquiring the ambient temperature and the mixer outlet temperature and actively heating the EGR valve and the mixer according to the ambient temperature and the mixer outlet temperature, and the working stability of the engine is improved.
2. The EGR valve and the mixer are heated by the electric auxiliary heating device and the engine coolant, the electric auxiliary heating device and the engine coolant are switched according to the operating condition of the engine, when the coolant is heated and cannot meet the heating requirement, an electric auxiliary heating scheme is adopted, and when the coolant is heated and meets the requirement, the coolant is only used for heating, so that the influence of the auxiliary heating device on the comprehensive economy of the whole vehicle can be effectively reduced, the operating environment temperature of the vehicle and the engine is expanded, and the reliability of the EGR system and the engine is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional structure;
fig. 2 is a schematic structural diagram of the present invention.
Wherein: the system comprises an A-engine cylinder, a B-EGR cooler, a C-EGR valve, a D-mixer, a 1-EGR valve, a 2-mixer, a 3-electric auxiliary heating device, a 4-shell, a 5-engine controller, a 6-engine coolant outlet, a 7-engine coolant inlet, an 8-liquid inlet pipe, a 9-liquid outlet pipe, a 10-control valve, an 11-intercooler rear pipe, a 12-EGR cooler rear pipe and a 13-mixer rear pipe.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 2, an EGR valve and mixer heating control method obtains an ambient temperature and a mixer outlet temperature; when the ambient temperature and the mixer outlet temperature are both lower than a first threshold value, heating the EGR valve 1 and the mixer 2; when the ambient temperature or the mixer outlet temperature is higher than the second threshold, the heating of the EGR valve 1 and the mixer 2 is stopped. The first threshold and the second threshold can be set according to actual working conditions, for example, the first threshold is 0-5 ℃ and the second threshold is 20-25 ℃.
Example one
When the engine is in a non-warm-up operation working condition, the EGR valve 1 and the mixer 2 are heated through the electric auxiliary heating device 3; when the engine is in a warm-up cycle, heating of the EGR valve 1 and the mixer 2 is stopped.
Example two
When the engine runs in full working condition, the EGR valve 1 and the mixer 2 are heated by engine coolant.
EXAMPLE III
Through electric auxiliary heating device 3 and engine coolant liquid to EGR valve 1 and blender 2 heat, specifically include:
when the engine is started by a cold machine or the temperature of the engine coolant is lower than a first set value, the EGR valve 1 and the mixer 2 are heated by the electric auxiliary heating device 3;
when the engine coolant temperature is higher than the second set value, the EGR valve 1 and the mixer 2 are heated using the engine coolant. The first set value and the second set value can be set according to actual working conditions, for example, the first set value is 70-80 ℃, and the second set value is 80-90 ℃.
Example four
Through electric auxiliary heating device 3 and engine coolant liquid to EGR valve 1 and blender 2 heat, specifically include:
when the engine is in a non-warm-up operation working condition, the electric auxiliary heating device 3 is used for heating the EGR valve 1 and the mixer 2;
after the engine is in a warm-up cycle, the EGR valve 1 and the mixer 2 are heated using the engine coolant.
EXAMPLE five
The utility model provides a EGR valve and blender heating control system, includes the casing 4 with EGR valve 1 and blender 2 parcel, the casing 4 periphery is equipped with the electric auxiliary heating device 3 of electric connection engine controller 5. The engine controller 5 acquires the ambient temperature, the mixer outlet temperature, and the engine coolant temperature through the temperature sensors, respectively.
In this embodiment, the electric auxiliary heating device 3 includes a temperature control module of the electric connection engine controller 5, a heating wire of the electric connection temperature control module, and the heating wire wraps the casing 4. The engine controller 5 can control the heating wire to heat the housing 4 through the temperature control module, so as to heat the EGR valve 1 and the mixer 2. The heat-conducting plates in contact with the EGR valve 1 and the mixer 2, respectively, are provided in the housing 4, so that the heating rates of the EGR valve 1 and the mixer 2 can be increased. The surface of the shell 4 is provided with a heat insulation layer, so that the heat dissipation of the shell 4 can be reduced, and the heat preservation time of the shell 4 is prolonged.
Furthermore, both ends of the shell 4 are respectively provided with a liquid inlet pipe 8 for connecting with the engine coolant outlet 6 and a liquid outlet pipe 9 for connecting with the engine coolant inlet 7. The liquid inlet pipe 8 is provided with a control valve 10 which is electrically connected with the engine controller 5. The engine controller 5 may heat the EGR valve 1 and the mixer 2 by controlling the control valve 10 to open to allow the engine coolant to flow into the housing 4.
The joints of the shell 4 and the intercooler rear pipe 11, the EGR cooler rear pipe 12 and the mixer rear pipe 13 are all provided with sealing parts, so that the leakage of the engine coolant is avoided. The sealing member may be a sealing gasket or a filling sealant.
According to the invention, the problem that the running of the engine is influenced by icing of the existing EGR valve and mixer can be effectively solved by acquiring the ambient temperature and the mixer outlet temperature and actively heating the EGR valve and the mixer according to the ambient temperature and the mixer outlet temperature, and the working stability of the engine is improved. The EGR valve and the mixer are heated through the electric auxiliary heating device and the engine coolant, the electric auxiliary heating device and the engine coolant are switched according to the operating condition of the engine, when the coolant is heated and cannot meet the heating requirement, an electric auxiliary heating scheme is adopted, the coolant is only heated when the coolant is heated and meets the requirement, the influence of the auxiliary heating device on the comprehensive economy of the whole vehicle can be effectively reduced, the operating environment temperature of the vehicle and the engine is enlarged, and the reliability of an EGR system and the engine is improved.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. An EGR valve and mixer heating control method is characterized in that an ambient temperature and a mixer outlet temperature are obtained; heating the EGR valve (1) and the mixer (2) when the ambient temperature and the mixer outlet temperature are both lower than a first threshold value; -when the ambient or mixer outlet temperature is higher than a second threshold, stopping heating the EGR valve (1) and mixer (2).
2. The EGR valve and mixer heating control method according to claim 1, wherein the EGR valve (1) and the mixer (2) are heated by the electric auxiliary heating device (3) when the engine is in the non-warmed-up operation condition; and when the engine is in a warm-up cycle, stopping heating the EGR valve (1) and the mixer (2).
3. An EGR valve and mixer heating control method according to claim 1, characterized in that the EGR valve (1) and mixer (2) are heated by engine coolant when the engine is running in full operation.
4. The EGR valve and mixer heating control method according to claim 1, wherein heating the EGR valve (1) and the mixer (2) by an electric auxiliary heating device (3) and an engine coolant, specifically comprises:
when the engine is started in a cold mode or the temperature of the engine coolant is lower than a first set value, an electric auxiliary heating device (3) is used for heating the EGR valve (1) and the mixer (2);
and when the temperature of the engine coolant is higher than a second set value, heating the EGR valve (1) and the mixer (2) by using the engine coolant.
5. The EGR valve and mixer heating control method according to claim 1, wherein heating the EGR valve (1) and the mixer (2) by an electric auxiliary heating device (3) and an engine coolant, specifically comprises:
when the engine is in a non-warm-up operation working condition, the EGR valve (1) and the mixer (2) are heated by using an electric auxiliary heating device (3);
and after the engine is in a warm-up cycle, heating the EGR valve (1) and the mixer (2) by using engine cooling liquid.
6. The heating control system for the EGR valve and the mixer is characterized by comprising a shell (4) for wrapping the EGR valve (1) and the mixer (2), wherein an electric auxiliary heating device (3) electrically connected with an engine controller (5) is arranged on the periphery of the shell (4).
7. The EGR valve and mixer heating control system according to claim 6, wherein the electric auxiliary heating device (3) comprises a temperature control module electrically connected to the engine controller (5), a heating wire electrically connected to the temperature control module.
8. An EGR valve and mixer heating control system according to claim 7, characterized in that said heating wire wraps said housing (4).
9. An EGR valve and mixer heating control system according to any of claims 6-8, characterized in that both ends of the housing (4) are provided with an inlet pipe (8) for connecting to the engine coolant outlet (6) and an outlet pipe (9) for connecting to the engine coolant inlet (7), respectively.
10. An EGR valve and mixer heating control system as in claim 9, characterized in that the intake pipe (8) is provided with a control valve (10) electrically connected to the engine controller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159362.0A CN111237100A (en) | 2020-03-09 | 2020-03-09 | EGR valve and mixer heating control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159362.0A CN111237100A (en) | 2020-03-09 | 2020-03-09 | EGR valve and mixer heating control method and system |
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| CN111237100A true CN111237100A (en) | 2020-06-05 |
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| CN202010159362.0A Pending CN111237100A (en) | 2020-03-09 | 2020-03-09 | EGR valve and mixer heating control method and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147725A (en) * | 2021-03-29 | 2021-07-23 | 广西玉柴机器股份有限公司 | Method for controlling temperature maintenance of hybrid power engine and vehicle-mounted terminal |
| CN114542269A (en) * | 2022-01-18 | 2022-05-27 | 东风汽车集团股份有限公司 | Intercooler, intercooler control method and related equipment |
| CN115478945A (en) * | 2022-08-16 | 2022-12-16 | 潍柴动力股份有限公司 | Control method and device for exhaust gas recirculation system, electronic device, and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19801387A1 (en) * | 1998-01-16 | 1999-07-22 | Pierburg Ag | Exhaust gas recirculation valve for internal combustion engine |
| CN102414414A (en) * | 2009-05-07 | 2012-04-11 | 丰田自动车株式会社 | Vehicle heat management device |
| CN104214015A (en) * | 2013-06-03 | 2014-12-17 | 福特环球技术公司 | Systems and methods for heating a pre-compressor duct to reduce condensate formation |
| DE102014109273A1 (en) * | 2014-07-02 | 2016-01-07 | Pierburg Gmbh | Control valve for mounting on a motor vehicle |
| CN205841043U (en) * | 2016-03-28 | 2016-12-28 | 卡明斯公司 | Internal combustion engine system |
| CN108474326A (en) * | 2015-11-18 | 2018-08-31 | 通用电气公司 | The system and method for exhaust gas recirculatioon |
| CN208236522U (en) * | 2018-01-02 | 2018-12-14 | 宁波吉利罗佑发动机零部件有限公司 | Engine aspirating system and automobile |
| WO2019121284A1 (en) * | 2017-12-20 | 2019-06-27 | Pierburg Gmbh | Control valve for an internal combustion engine, and method for controlling a control valve |
| CN211819738U (en) * | 2020-03-09 | 2020-10-30 | 广西玉柴机器股份有限公司 | EGR valve and mixer heating control system |
-
2020
- 2020-03-09 CN CN202010159362.0A patent/CN111237100A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19801387A1 (en) * | 1998-01-16 | 1999-07-22 | Pierburg Ag | Exhaust gas recirculation valve for internal combustion engine |
| CN102414414A (en) * | 2009-05-07 | 2012-04-11 | 丰田自动车株式会社 | Vehicle heat management device |
| CN104214015A (en) * | 2013-06-03 | 2014-12-17 | 福特环球技术公司 | Systems and methods for heating a pre-compressor duct to reduce condensate formation |
| DE102014109273A1 (en) * | 2014-07-02 | 2016-01-07 | Pierburg Gmbh | Control valve for mounting on a motor vehicle |
| CN108474326A (en) * | 2015-11-18 | 2018-08-31 | 通用电气公司 | The system and method for exhaust gas recirculatioon |
| CN205841043U (en) * | 2016-03-28 | 2016-12-28 | 卡明斯公司 | Internal combustion engine system |
| WO2019121284A1 (en) * | 2017-12-20 | 2019-06-27 | Pierburg Gmbh | Control valve for an internal combustion engine, and method for controlling a control valve |
| CN208236522U (en) * | 2018-01-02 | 2018-12-14 | 宁波吉利罗佑发动机零部件有限公司 | Engine aspirating system and automobile |
| CN211819738U (en) * | 2020-03-09 | 2020-10-30 | 广西玉柴机器股份有限公司 | EGR valve and mixer heating control system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147725A (en) * | 2021-03-29 | 2021-07-23 | 广西玉柴机器股份有限公司 | Method for controlling temperature maintenance of hybrid power engine and vehicle-mounted terminal |
| CN113147725B (en) * | 2021-03-29 | 2022-12-20 | 广西玉柴机器股份有限公司 | Method for controlling temperature maintenance of hybrid power engine and vehicle-mounted terminal |
| CN114542269A (en) * | 2022-01-18 | 2022-05-27 | 东风汽车集团股份有限公司 | Intercooler, intercooler control method and related equipment |
| CN115478945A (en) * | 2022-08-16 | 2022-12-16 | 潍柴动力股份有限公司 | Control method and device for exhaust gas recirculation system, electronic device, and storage medium |
| CN115478945B (en) * | 2022-08-16 | 2023-12-15 | 潍柴动力股份有限公司 | Control method and device of exhaust gas recirculation system, electronic equipment and storage medium |
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