CN111810273A - Gasoline engine particle catcher differential pressure pipeline water removal system and method - Google Patents
Gasoline engine particle catcher differential pressure pipeline water removal system and method Download PDFInfo
- Publication number
- CN111810273A CN111810273A CN202010605798.8A CN202010605798A CN111810273A CN 111810273 A CN111810273 A CN 111810273A CN 202010605798 A CN202010605798 A CN 202010605798A CN 111810273 A CN111810273 A CN 111810273A
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- Prior art keywords
- control computer
- differential pressure
- water removal
- storage tank
- booster pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
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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
- Y02T10/40—Engine management systems
Abstract
The invention belongs to the technical field of automobiles, and particularly relates to a gasoline engine particle catcher differential pressure pipeline water removal system and method. The system comprises a water removal device, a power supply system and a control computer; the water removal device comprises an electric booster pump, a one-way valve, a safety valve, a pressurized gas storage tank and an electromagnetic valve; the power supply system comprises a battery and a relay; the invention can timely and accurately remove the condensed water in the differential pressure pipeline, and solves the problem that the differential pressure sensor cannot normally work due to the generation of water in the differential pressure pipeline when a vehicle provided with the particle catcher is in use.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a gasoline engine particle catcher differential pressure pipeline water removal system and method.
Background
With the implementation of the national emission regulation of light-duty vehicles 6, the current effective technical measure for reducing particulate matter emission of Gasoline engines is to adopt a Particle trap (GPF Gasoline particulate Filter), and GPF generally needs to be provided with a differential pressure sensor for calculating carbon loading, diagnosing and the like. However, after the engine stops working, water vapor in high-temperature exhaust gas can be condensed into water, and the water vapor exists in a pressure difference pipeline, particularly in the temperature below 0 ℃, especially in a chassis-type GPF (general purpose engine), if a vehicle is placed in a low-temperature environment for a long time, the GPF pressure difference pipeline is frozen, so that the pressure difference measurement value is abnormal, and the normal work is influenced.
Disclosure of Invention
The invention provides a gasoline engine particle catcher differential pressure pipeline dewatering system and method, which can timely and accurately clear condensed water in a differential pressure pipeline and solve the problem that a differential pressure sensor cannot normally work due to water generation in the differential pressure pipeline when a vehicle provided with the particle catcher is used.
The technical scheme of the invention is described as follows by combining the attached drawings:
a gasoline engine particle catcher differential pressure pipeline water removal system comprises a water removal device 18, a power supply system 17 and a control computer 4; the water removal device 18 comprises an electric booster pump 3, a one-way valve 5, a safety valve 6, a pressurized gas storage tank 7 and an electromagnetic valve 9; the power supply system 17 comprises a battery 1 and a relay 2; the electric booster pump 3 is powered by a battery 1; the control computer 4 is connected with the relay 2; the relay 2 is connected with the electric booster pump 3 through a power supply line 15; the electric booster pump 3 is connected with a booster gas storage tank 7 through a gas pipeline 16; a check valve 5 is arranged in the gas pipeline 16; the gas flows from the electric booster pump 3 to the booster gas storage tank 7; the gas storage tank 7 is connected with the electromagnetic valve 9 through a gas pipeline 16; the electromagnetic valve 9 is connected with an exhaust pipe 13 of an engine 11 through a differential pressure pipeline 10; the control computer 4 is connected with the electromagnetic valve 9 through a control line 14; the exhaust pipe 13 is provided with a particle trap 19.
And a safety valve 6 is arranged on the pressurized gas storage tank 7.
And a pressure sensor 8 is arranged on the pressurized gas storage tank 7.
A particle catcher 19 is arranged on the exhaust pipe 13;
the particle catcher 19 is provided with a temperature sensor 12.
The control computer 4 is internally provided with a temperature sensor.
The control computer 4 is used for calculating the real-time rotating speed of the vehicle engine.
The control computer 4 is used for testing the real-time voltage of the battery 1.
A water removal method of a gasoline engine particle catcher differential pressure pipeline water removal system comprises the following steps:
step one, in the running process of a vehicle, periodically judging whether the actual air pressure in a pressurized air storage tank 7 reaches a set target value or not by a control computer 4, measuring the actual air pressure by a pressure sensor 8, and if the current pressurized air pressure reaches the set target value, setting a pressurized air flag bit; if the actual air pressure in the pressurized air storage tank 7 is lower than the lower pressure limit, the pressurized air mark position is zero; judging whether the engine is in a running state or not by the control computer 4, if the engine runs and is in a non-failure mode, the heating of the catalytic converter is finished, the starting is finished, the voltage is more than 10V, or the engine is in a stop state, switching on the relay 2 by the control computer 4 through the control power supply system 17, enabling the electric booster pump 3 to work, and when the actual air pressure reaches a set pressure value, stopping the electric booster pump 3 to work, and setting a booster air flag bit; in order to ensure safety, a safety valve 6 is arranged on the pressurized gas storage tank 7, and when the pressure exceeds a certain value, the safety valve 6 is automatically opened;
step two, after the vehicle is stopped, the control computer 4 checks whether the pressurized air flag bit is set, if the pressurized air flag bit is set: the temperature in the GPF is collected by the control computer 4; if the temperature is lower than 90 ℃, the control computer 4 controls the electromagnetic valve 9 to open, and condensed water in the differential pressure pipeline 10 is removed. If the water is not set, the relay 2 is connected through the control power supply system 17 by the control computer 4, the electric booster pump 3 works until the booster air flag position is set, and then the water removing action is executed.
The invention has the beneficial effects that:
the invention can timely and accurately remove the condensed water in the differential pressure pipeline, and thoroughly solves the problem that the differential pressure sensor cannot normally work due to the generation of water in the differential pressure pipeline when a vehicle provided with the particle catcher is in use.
Drawings
FIG. 1 is a schematic diagram of a gasoline engine particulate trap differential pressure pipeline water removal system according to the present invention;
FIG. 2 is a flow chart of the present invention;
FIG. 3 is a logic diagram of water removal.
In the figure: 1. a battery;
2. a relay;
3. an electric booster pump;
4. a control computer;
5. a one-way valve;
6. a safety valve;
7. a pressurized gas storage tank;
8. a pressure sensor;
9. an electromagnetic valve;
10. a differential pressure pipeline;
11. an engine;
12. a temperature sensor;
13. an exhaust pipe;
14. a control circuit;
15. a power supply line;
16. a gas line;
17. a power supply system;
18. a water removal device;
19. a particle catcher.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Referring to fig. 1, a gasoline engine particle catcher differential pressure pipeline water removal system comprises a water removal device 18, a power supply system 17 and a control computer 4; the water removal device 18 comprises an electric booster pump 3, a one-way valve 5, a safety valve 6, a pressurized gas storage tank 7 and an electromagnetic valve 9; the power supply system 17 includes a battery 1 and a relay 2.
The electric booster pump 3 is powered by the battery 1.
The control computer 4 is connected with the relay 2; the relay 2 is connected with the electric booster pump 3 through a power supply line 15. The control computer 4 controls the work of the electric booster pump 3 by controlling the on-off of the relay 2.
The electric booster pump 3 is connected with a booster gas storage tank 7 through a gas pipeline 16; the gas pipeline 16 is internally provided with a one-way valve 5, and the gas storage tank 7 is connected with the electromagnetic valve 9 through the gas pipeline 16; gas can only flow to the pressurized gas storage tank from the electric booster pump 3, when the system judges that water removal is needed, the electromagnetic valve 9 is opened, condensed water in the pressure difference pipeline 10 is blown to the exhaust pipe by high-pressure air, and the water removal function is realized
The electric booster pump 3 starts to operate after the vehicle is stopped, the operation time is determined by the difference between the target pressure and the actual pressure of the gas in the booster gas storage tank 7, the actual pressure is measured by the pressure sensor 8, and the target pressure is generally set to be about 1.5 bar. The pressurized gas storage tank 7 is also provided with a safety valve 6 which can be automatically opened after the gas pressure in the storage tank exceeds a safety value, so that potential safety hazards caused by excessive pressure are prevented.
The operation mode of the electric booster pump 3 is intermittent operation, such as 5s operation and 3s intermittent operation. If the engine is started during the operation of the electric booster pump 3, the operation is stopped.
The solenoid valve 9 is connected to an exhaust pipe 13 of an engine 11 via a differential pressure line 10.
The control computer 4 is connected with the electromagnetic valve 9 through a control line 14.
The exhaust pipe 13 is provided with a particle trap 19.
The method comprises the steps of collecting the ambient temperature T1 (a temperature sensor is arranged in a control computer 4) of a vehicle during the running of the vehicle, collecting the exhaust temperature T2 (measured by a temperature sensor 12) during the running process, the exhaust flow M1 (calculated by the control computer 4), the exhaust temperature T3 (measured by the temperature sensor 12) during the shutdown process, the shutdown time and the start time data (calculated by the control computer 4), calculating the starting time and the starting time of an electromagnetic valve 9 according to the information, blowing condensed water in exhaust gas during the shutdown process into an exhaust pipe before freezing, and ensuring that no condensed water exists in a pressure difference pipeline.
Referring to fig. 2 and 3, a water removal method of a gasoline engine particulate trap differential pressure pipeline water removal system comprises the following steps:
step one, in the running process of the vehicle, the control computer 4 periodically judges whether the actual air pressure in the pressurized air storage tank 7 reaches a set target value, and the actual air pressure is measured by the pressure sensor 8;
if the current supercharged air pressure reaches a set target, setting a supercharged air flag bit;
if the actual air pressure in the pressurized air storage tank 7 is lower than the lower pressure limit, the pressurized air mark position is zero;
the control computer 4 judges whether the engine is in a running state;
if the engine is in a non-failure mode, the heating of the catalytic converter is finished, the starting is finished, the voltage is more than 10V, or the engine is in a stop state, the relay 2 is connected through the control power supply system 17 by the control computer 4, the electric booster pump 3 works, when the actual air pressure reaches a set pressure value, the electric booster pump 3 stops working, and the booster air flag bit is set.
In order to ensure safety, a safety valve 6 is arranged on the pressurized gas storage tank 7, and when the pressure exceeds a certain value, the safety valve 6 is automatically opened;
step two, after the vehicle is stopped, the control computer 4 checks whether the pressurized air flag bit is set;
if the bit is set: the temperature in the GPF is collected by the control computer 4;
if the temperature is lower than 90 ℃, the control computer 4 controls the electromagnetic valve 9 to open, and condensed water in the differential pressure pipeline 10 is removed.
If the water is not set, the relay 2 is connected through the control power supply system 17 by the control computer 4, the electric booster pump 3 works until the booster air flag position is set, and then the water removing action is executed.
The invention can timely and accurately remove the condensed water in the differential pressure pipeline, and thoroughly solves the problem that the differential pressure sensor cannot normally work due to the generation of water in the differential pressure pipeline when a vehicle provided with the particle catcher is in use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A gasoline engine particle catcher differential pressure pipeline water removal system is characterized by comprising a water removal device (18), a power supply system (17) and a control computer (4); the water removal device (18) comprises an electric booster pump (3), a one-way valve (5), a safety valve (6), a pressurized gas storage tank (7) and an electromagnetic valve (9); the power supply system (17) comprises a battery (1) and a relay (2); the electric booster pump (3) is powered by the battery (1); the control computer (4) is connected with the relay (2); the relay (2) is connected with the electric booster pump (3) through a power supply line (15); the electric booster pump (3) is connected with a booster gas storage tank (7) through a gas pipeline (16); a check valve (5) is arranged in the gas pipeline (16); the gas flows from the electric booster pump (3) to the booster gas storage tank (7); the gas storage tank (7) is connected with the electromagnetic valve (9) through a gas pipeline (16); the electromagnetic valve (9) is connected with an exhaust pipe (13) of an engine (11) through a differential pressure pipeline (10); the control computer (4) is connected with the electromagnetic valve (9) through a control circuit (14); and a particle catcher (19) is arranged on the exhaust pipe (13).
2. The gasoline engine particulate trap differential pressure pipeline water removal system as defined in claim 1, wherein a safety valve (6) is provided on the pressurized gas storage tank (7).
3. The gasoline engine particulate trap differential pressure pipeline water removal system as defined in claim 1, wherein the pressurized gas storage tank (7) is provided with a pressure sensor (8).
4. The gasoline engine particulate trap differential pressure pipeline water removal system as defined in claim 1, wherein the exhaust pipe (13) is provided with a particulate trap (19).
5. The gasoline engine particulate trap differential pressure line water removal system of claim 4, wherein the particulate trap (19) is provided with a temperature sensor (12).
6. The gasoline engine particulate trap differential pressure pipeline water removal system as defined in claim 1, wherein the control computer (4) is internally provided with a temperature sensor.
7. The gasoline engine particulate trap differential pressure line water scavenging system of claim 1, wherein the control computer (4) is used to calculate the real-time speed of the vehicle engine.
8. The gasoline engine particulate trap differential pressure pipeline water removal system as defined in claim 1, wherein the control computer (4) is used for testing the real-time voltage of the battery (1).
9. The method as claimed in claim 1, wherein the method comprises the steps of:
step one, in the running process of a vehicle, a control computer (4) periodically judges whether the actual air pressure in a pressurized air storage tank (7) reaches a set target value or not, the actual air pressure is measured by a pressure sensor (8), and if the current pressurized air pressure reaches the set target, a pressurized air flag bit is set; if the actual air pressure in the pressurized air storage tank (7) is lower than the lower pressure limit, the pressurized air mark position is zero; judging whether the engine is in a running state or not by the control computer (4), if the engine runs and is in a non-failure mode, the heating of the catalytic converter is finished, the starting is finished, the voltage is more than 10V, or the engine is in a stop state, switching on the relay (2) by the control computer (4) through the control power supply system (17), enabling the electric booster pump (3) to work, and when the actual air pressure reaches a set pressure value, stopping the electric booster pump (3) to work, and setting a booster air flag bit; in order to ensure safety, a safety valve (6) is arranged on the pressurized gas storage tank (7), and when the pressure exceeds a certain value, the safety valve (6) is automatically opened;
step two, after the vehicle is stopped, the control computer (4) checks whether the pressurized air flag bit is set, if so: collecting the temperature in GPF by a control computer (4); if the temperature is lower than 90 ℃, the control computer (4) controls the electromagnetic valve (9) to open, and condensed water in the differential pressure pipeline (10) is removed. If the water is not set, the relay (2) of the power supply system (17) is controlled to be connected by the control computer (4), the electric booster pump (3) works until the pressurized air flag position is set, and then the water removal action is executed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605798.8A CN111810273A (en) | 2020-06-29 | 2020-06-29 | Gasoline engine particle catcher differential pressure pipeline water removal system and method |
| PCT/CN2020/141341 WO2022001066A1 (en) | 2020-06-29 | 2020-12-30 | Water removal system and method for differential pressure pipelines of gasoline engine particle trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605798.8A CN111810273A (en) | 2020-06-29 | 2020-06-29 | Gasoline engine particle catcher differential pressure pipeline water removal system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111810273A true CN111810273A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010605798.8A Pending CN111810273A (en) | 2020-06-29 | 2020-06-29 | Gasoline engine particle catcher differential pressure pipeline water removal system and method |
Country Status (2)
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| CN (1) | CN111810273A (en) |
| WO (1) | WO2022001066A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557041A (en) * | 2020-11-20 | 2021-03-26 | 神龙汽车有限公司 | Pressure device and method for simulating blocking fault of GPF particle catcher |
| CN112627956A (en) * | 2020-12-14 | 2021-04-09 | 北汽福田汽车股份有限公司 | Differential pressure pipe cleaning system of vehicle and vehicle with same |
| CN112943411A (en) * | 2021-03-12 | 2021-06-11 | 潍柴动力股份有限公司 | DPF system, control method and device |
| CN113218812A (en) * | 2021-05-07 | 2021-08-06 | 潍柴动力股份有限公司 | Method for detecting differential pressure pipeline of particle trap, related device and readable medium |
| CN113818948A (en) * | 2021-09-22 | 2021-12-21 | 潍柴动力股份有限公司 | Diesel particulate filter control device and control method |
| WO2022001066A1 (en) * | 2020-06-29 | 2022-01-06 | 中国第一汽车股份有限公司 | Water removal system and method for differential pressure pipelines of gasoline engine particle trap |
| CN114112849A (en) * | 2021-11-30 | 2022-03-01 | 潍柴动力股份有限公司 | DPF fault diagnosis method and device, vehicle and storage medium |
| CN115075913A (en) * | 2022-06-30 | 2022-09-20 | 奇瑞汽车股份有限公司 | Particle catcher differential pressure pipe heating device and exhaust system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022001066A1 (en) * | 2020-06-29 | 2022-01-06 | 中国第一汽车股份有限公司 | Water removal system and method for differential pressure pipelines of gasoline engine particle trap |
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| CN113218812A (en) * | 2021-05-07 | 2021-08-06 | 潍柴动力股份有限公司 | Method for detecting differential pressure pipeline of particle trap, related device and readable medium |
| CN113818948A (en) * | 2021-09-22 | 2021-12-21 | 潍柴动力股份有限公司 | Diesel particulate filter control device and control method |
| CN114112849A (en) * | 2021-11-30 | 2022-03-01 | 潍柴动力股份有限公司 | DPF fault diagnosis method and device, vehicle and storage medium |
| CN115075913A (en) * | 2022-06-30 | 2022-09-20 | 奇瑞汽车股份有限公司 | Particle catcher differential pressure pipe heating device and exhaust system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022001066A1 (en) | 2022-01-06 |
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Application publication date: 20201023 |