CN113062789B - Vehicle exhaust particle trapping and regenerating device and method and vehicle - Google Patents

Vehicle exhaust particle trapping and regenerating device and method and vehicle Download PDF

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Publication number
CN113062789B
CN113062789B CN202010001864.0A CN202010001864A CN113062789B CN 113062789 B CN113062789 B CN 113062789B CN 202010001864 A CN202010001864 A CN 202010001864A CN 113062789 B CN113062789 B CN 113062789B
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China
Prior art keywords
elastic valve
valve
exhaust pipe
particle
air
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CN113062789A (en
Inventor
黄兴来
钟广桦
曾志新
张凯
钟灵贵
李薛
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—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 using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • 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
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
    • 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
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • 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
    • 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 utility model provides a vehicle exhaust particle entrapment regenerating unit, including the particle entrapment assembly, an air inlet pipe, first blast pipe and second blast pipe, the particle entrapment assembly includes casing and particle trap, the chamber of admitting air has in the casing, the outside of casing is equipped with the valve bonnet, the gas collection chamber has in the valve bonnet, be equipped with on the casing with first reposition of redundant personnel mouth and second reposition of redundant personnel mouth, be equipped with first elasticity valve and second elasticity valve in the valve bonnet, be equipped with the heating net on the particle trap, the one end and the chamber intercommunication of admitting air of intake pipe, the one end of first blast pipe and particle trap's gas outlet intercommunication, the one end and the gas collection chamber intercommunication of second blast pipe, atmospheric pressure can promote first elasticity valve and/or second elasticity valve and open, make the chamber of admitting air switch on with the gas collection chamber. The vehicle exhaust particle trapping and regenerating device can effectively avoid engine damage caused by the failure of the particle trap. The invention also relates to a vehicle exhaust particle trapping and regenerating method and a vehicle.

Description

Vehicle exhaust particle trapping and regenerating device and method and vehicle
Technical Field
The invention relates to the technical field of engines, in particular to a vehicle exhaust particle trapping and regenerating device and method and a vehicle.
Background
In order to meet the requirements of the national emission regulations, most of the current vehicle type emission systems use a particle catcher to catch carbon particles which are not fully combusted, and the particle catcher is heated to burn off the caught particles. However, after the particles are captured, the temperature of the GPF needs to be raised through an additionally input power supply to burn off the particles, and meanwhile, if the GPF heating system is damaged or the GPF is damaged, the particles cannot be burned in time, so that dangers such as damage to an engine, flameout in the running process of a vehicle and the like caused by unsmooth airflow with too high pressure can be caused.
Disclosure of Invention
In view of the above, the present invention provides a device for trapping and regenerating exhaust particles of a vehicle, which can realize regeneration of the particle trap without additional energy, and can effectively avoid engine damage and sudden stop risk in the vehicle driving process caused by failure of the particle trap.
A vehicle exhaust particle trapping and regenerating device comprises a particle trapping assembly, an air inlet pipe, a first exhaust pipe and a second exhaust pipe, wherein the particle trapping assembly comprises a shell and a particle trap arranged in the shell, an air inlet cavity is arranged in the shell, a valve cover is arranged outside the shell, a gas collecting cavity is arranged in the valve cover, a first branch opening and a second branch opening which are communicated with the gas collecting cavity are arranged on the shell, a first elastic valve for sealing the first branch opening and a second elastic valve for sealing the second branch opening are arranged in the valve cover, a heating net is arranged on the particle trap, one end of the air inlet pipe is connected with an air source, the other end of the air inlet pipe is communicated with the air inlet cavity, one end of the first exhaust pipe is communicated with an air outlet of the particle trap, one end of the second exhaust pipe is communicated with the gas collecting cavity, air pressure formed in the air inlet cavity can push the first elastic valve and/or the second elastic valve to be opened, the air inlet cavity is communicated with the air collecting cavity.
In an embodiment of the present invention, the vehicle exhaust particulate trapping and regenerating device further includes a generator assembly, the generator assembly is disposed on the second exhaust pipe and generates electricity by using the airflow in the second exhaust pipe, and the generator assembly is electrically connected to the heating net.
In an embodiment of the invention, a stiffness coefficient of the first elastic valve is smaller than a stiffness coefficient of the second elastic valve, and an air pressure for pushing the first elastic valve to open is smaller than an air pressure for pushing the second elastic valve to open.
In an embodiment of the present invention, the first exhaust pipe is provided with a mounting hole, and one end of the second exhaust pipe, which is far away from the valve cover, is connected to the mounting hole.
In an embodiment of the present invention, the vehicle exhaust particulate trap regeneration device further includes a catalyst, and an end of the first exhaust pipe remote from the particulate trap passes through the catalyst.
In an embodiment of the invention, a binding post is arranged on the shell, one end of the binding post is connected with the heating net, and the other end of the binding post is electrically connected with the generator assembly through a wire.
In an embodiment of the present invention, the air source is an engine.
The present invention also provides a vehicle exhaust particulate trapping regeneration method using the vehicle exhaust particulate trapping regeneration apparatus described above, the method including:
when the thrust Fv acting on the first elastic valve and the second elastic valve is smaller than the first pretightening force F1 and the second pretightening force F2 of the first elastic valve and the second elastic valve, the first elastic valve and the second elastic valve are in a closed state, and the airflow passes through the particle catcher and then is exhausted from the first exhaust pipe;
when the thrust Fv is larger than the first pretightening force F1 and/or the second pretightening force F2, the first elastic valve and/or the second elastic valve are/is in an open state, so that the air inlet cavity is communicated with the air collecting cavity, the airflow in the air inlet cavity is divided to the air collecting cavity and is exhausted from the second exhaust pipe, the airflow drives the generator assembly to generate electricity, and the heating net heats and burns the particulate matters trapped by the particulate trap;
the first pre-tightening force F1 is an acting force for pushing the first elastic valve to open; the second pre-tightening force F2 is a force pushing the second elastic valve to open.
In an embodiment of the present invention, the method further includes:
the first pre-tightening force F1 is smaller than the second pre-tightening force F2, and when the thrust Fv is larger than the first pre-tightening force F1 and smaller than the second pre-tightening force F2, the first elastic valve is in an open state, and the second elastic valve is in a closed state.
In an embodiment of the present invention, the method further includes:
the first pre-tightening force F1 is smaller than the second pre-tightening force F2, and when the thrust Fv is larger than the first pre-tightening force F1 and the second pre-tightening force F2 and the first elastic valve and/or the second elastic valve are in a closed state, a fault message of the first elastic valve and/or the second elastic valve is sent.
The invention also provides a vehicle which comprises the vehicle exhaust particle trapping and regenerating device.
According to the vehicle exhaust particle trapping and regenerating device, the air pressure formed in the air inlet cavity can push the first elastic valve and/or the second elastic valve to be opened, so that the air inlet cavity is communicated with the air collecting cavity, the air flow in the air inlet cavity can be shunted to the air collecting cavity and is exhausted from the second exhaust pipe, the risks of engine damage and sudden stop in the vehicle running process caused by the particle trap failure can be effectively avoided, meanwhile, the risk of the particle trap failure is reduced, and the regenerating capacity is improved.
Drawings
Fig. 1 is a schematic diagram of a vehicle exhaust particulate trapping regeneration apparatus according to a first embodiment of the present invention.
Fig. 2-5 are schematic cross-sectional views of the particle capture assembly of the present invention in various configurations.
Detailed Description
First embodiment
Fig. 1 is a schematic view of a vehicle exhaust particle trapping and regenerating device according to a first embodiment of the present invention, fig. 2 to 5 are schematic cross-sectional structural views of the particle trapping assembly of the present invention in different states, and referring to fig. 1 to 5, the vehicle exhaust particle trapping and regenerating device includes a particle trapping assembly 11, an air inlet pipe 12, a first exhaust pipe 13 and a second exhaust pipe 14, the particle trapping assembly 11 includes a housing 111 and a particle trap 112 disposed in the housing 111, the housing 111 has an air inlet chamber 101 therein, the housing 111 is provided with a valve cover 113 on the outside thereof, the valve cover 113 has an air collecting chamber 102 therein, the housing 111 is provided with a first branch port 103 and a second branch port 104 communicating with the air collecting chamber 102, the valve cover 113 is provided with a first elastic valve 114 sealing the first branch port 103 and a second elastic valve 115 sealing the second branch port 104 therein, the particle trap 112 is provided with a heating net (not shown), one end of the air inlet pipe 12 is connected with the air source 17, the other end of the air inlet pipe 12 is communicated with the air inlet cavity 101, one end of the first exhaust pipe 13 is communicated with the air outlet of the particle trap 112, one end of the second exhaust pipe 14 is communicated with the air collecting cavity 102, and air pressure formed in the air inlet cavity 101 can push the first elastic valve 114 and/or the second elastic valve 115 to be opened, so that the air inlet cavity 101 is communicated with the air collecting cavity 102.
Further, the vehicle exhaust particulate trapping regeneration device further comprises a generator assembly 15, the generator assembly 15 is disposed on the second exhaust pipe 14 and generates electricity by using the airflow in the second exhaust pipe 14, and the generator assembly 15 is electrically connected with the heating net.
In another preferred embodiment, the heating net can be further electrically connected to a power supply and a switch for controlling the on/off of the power supply, when the particle trap 112 traps more particles and the pressure difference between the air inlet and the air outlet of the particle trapping assembly 11 is larger, the switch controls the power supply to supply power to the heating net, so that the heating net heats and burns the particles trapped by the particle trap 112; when the combustion of the particles trapped by the particle trap 112 is substantially complete, the switch controls the power supply to be disconnected from the heating mesh.
Further, the particle trap 112 is a GPF, the particle trap 112 is used for trapping carbon particles, a heating wire heating net is arranged in the particle trap 112, and the heating net is heated to burn off the particles when being electrified.
Further, the air source 17 is an engine, and the intake pipe 12 is connected to an exhaust pipe of the engine. The inlet pipe 12 is a thin-walled circular tube, preferably made of stainless steel.
Further, the stiffness coefficient of the first elastic valve 114 is smaller than that of the second elastic valve 115, and the air pressure for pushing the first elastic valve 114 to open is smaller than that for pushing the second elastic valve 115 to open.
Further, referring to fig. 1 to 5, since the stiffness coefficient of the first elastic valve 114 is smaller than the stiffness coefficient of the second elastic valve 115, the first pre-tightening force F1 of the first elastic valve 114 for sealing the first diversion port 103 is smaller than the second pre-tightening force F2 of the second elastic valve 115 for sealing the second diversion port 104;
when the thrust Fv acting on the first elastic valve 114 and the second elastic valve 115 is smaller than the first pretightening force F1 and the second pretightening force F2, the air pressure in the air inlet cavity 101 cannot push the first elastic valve 114 and the second elastic valve 115, at this time, the first elastic valve 114 and the second elastic valve 115 are both in a closed state, and the air flow passes through the particle trap 112 and then is exhausted from the first exhaust pipe 13, as shown in fig. 2;
when the thrust Fv is greater than the first pretightening force F1 and less than the second pretightening force F2, the air pressure in the air intake cavity 101 can push the first elastic valve 114 open but cannot push the second elastic valve 115 open, the first elastic valve 114 is in an open state, the second elastic valve 115 is in a closed state, the air intake cavity 101 is communicated with the air collecting cavity 102 through the first branch port 103, the air flow in the air intake cavity 101 is branched to the air collecting cavity 102 and exhausted from the second exhaust pipe 14, the air flow drives the generator assembly 15 to generate electricity, and the heating net heats the particulate matters trapped by the combustion particulate trap 112, as shown in fig. 3; when the combustion of the particles trapped by the particle trap 112 is substantially completed, the pressure difference between the two ends of the particle trap assembly 11 decreases until the thrust force Fv acting on the first elastic valve 114 is smaller than the first pre-tightening force F1, at this time, the first elastic valve 114 is closed, the airflow passes through the particle trap 112 and then is exhausted from the first exhaust pipe 13, and the particle trap 112 traps the particles normally, as shown in fig. 2;
when the thrust Fv is greater than the first pretightening force F1 and the second pretightening force F2, the air pressure in the air intake cavity 101 can push away the first elastic valve 114 and the second elastic valve 115, the first elastic valve 114 and the second elastic valve 115 are both in an open state, the air intake cavity 101 is communicated with the air collecting cavity 102 through the first branch port 103 and the second branch port 104, the air flow in the air intake cavity 101 is divided to the air collecting cavity 102 and is exhausted from the second exhaust pipe 14, the air flow drives the generator assembly 15 to generate electricity, and the heating net heats the particulate matters trapped by the combustion particulate trap 112, as shown in fig. 4; when the combustion of the particles trapped by the particle trap 112 is substantially completed, the pressure difference between the two ends of the particle trap assembly 11 decreases until the thrust force Fv acting on the first elastic valve 114 and the second elastic valve 115 is smaller than the first pre-tightening force F1 and the second pre-tightening force F2, at this time, the first elastic valve 114 and the second elastic valve 115 are closed, the airflow passes through the particle trap 112 and then is exhausted from the first exhaust pipe 13, and the particle trap 112 traps the particles normally, as shown in fig. 2;
when the thrust force Fv is greater than the first preload force F1 and the second preload force F2, the air pressure in the intake chamber 101 may push the first elastic valve 114 and the second elastic valve 115 open, but the first elastic valve 114 and/or the second elastic valve 115 are in the closed state, and the first elastic valve 114 and/or the second elastic valve 115 is/are in a failure state, and then a failure message is sent out for the first elastic valve 114 and/or the second elastic valve 115, as shown in fig. 5.
Furthermore, the first exhaust pipe 13 is provided with a mounting hole 105, and one end of the second exhaust pipe 14 away from the valve cover 113 is connected with the mounting hole 105, that is, the air flows through the second exhaust pipe 14 and then enters the first exhaust pipe 13. In the present embodiment, the first exhaust pipe 13 and the second exhaust pipe 14 are thin-walled circular pipes, and are preferably made of stainless steel.
Further, the vehicle exhaust particulate trap regeneration device further includes a catalyst 16, and an end of the first exhaust pipe 13 remote from the particulate trap 112 and passes through the catalyst 16. In the present embodiment, the catalyst 16 is a three-way catalyst.
Further, the generator assembly 15 includes a generator and a turbine (not shown), the generator is an electromagnetic generator, a drive shaft of the generator is connected with the turbine, the turbine is disposed in the second exhaust pipe 14, and when the airflow passes through the turbine, the turbine rotates to drive the generator to generate electricity.
Furthermore, a terminal 116 is disposed on the housing 111, one end of the terminal 116 is connected to the heating network, and the other end of the terminal 116 is electrically connected to the generator assembly 15 through a wire. In this embodiment, the post 116 is made of a metal material that is easily conductive, and the outer surface of the post 116 is covered with ceramic, so that the post 116 and the particle catcher 112 are insulated.
The second exhaust pipe 14 of the exhaust particulate trap regeneration device for a vehicle of the present invention is provided with the generator assembly 15, and the generator assembly 15 generates electricity by using the airflow passing through the second exhaust pipe 14, so that the particulate trap 112 can be regenerated without additional energy. Moreover, the air pressure formed in the air inlet cavity 101 can push the first elastic valve 114 and/or the second elastic valve 115 to open, so that the air inlet cavity 101 is communicated with the air collecting cavity 102, the air flow in the air inlet cavity 101 can be shunted to the air collecting cavity 102 and discharged from the second exhaust pipe 14, the engine damage and the sudden stop risk in the vehicle running process caused by the fault of the particle trap 112 can be effectively avoided, meanwhile, the fault risk of the particle trap 112 is reduced, and the regeneration capacity is improved.
Second embodiment
The invention also relates to a vehicle exhaust particulate trapping regeneration method using the vehicle exhaust particulate trapping regeneration device, comprising:
when the thrust Fv acting on the first elastic valve 114 and the second elastic valve 115 is smaller than the first pretightening force F1 and the second pretightening force F2 of the first elastic valve 114 and the second elastic valve 115, the first elastic valve 114 and the second elastic valve 115 are in a closed state, and the air flow passes through the particle catcher 112 and then is exhausted from the first exhaust pipe 13;
when the thrust Fv is greater than the first pretightening force F1 and/or the second pretightening force F2, the first elastic valve 114 and/or the second elastic valve 115 are/is in an open state, so that the air inlet cavity 101 is communicated with the air collecting cavity 102, the airflow in the air inlet cavity 101 is divided to the air collecting cavity 102 and is exhausted from the second exhaust pipe 14, the airflow drives the generator assembly 15 to generate electricity, and the heating net heats the particulate matters trapped by the combustion particle trap 112;
the first pretightening force F1 is an acting force for pushing the first elastic valve 114 to open; the second preload force F2 is a force pushing the second elastic valve 115 to open.
Further, the method further comprises:
when the thrust Fv is greater than the first pretightening force F1 and less than the second pretightening force F2, the first elastic valve 114 is in an open state, the second elastic valve 115 is in a closed state, the air pressure in the air intake cavity 101 can push the first elastic valve 114 open but cannot push the second elastic valve 115 open, the first elastic valve 114 is in an open state, the second elastic valve 115 is in a closed state, the air intake cavity 101 is communicated with the air collecting cavity 102 through the first diversion port 103, the air flow in the air intake cavity 101 is diverted to the air collecting cavity 102 and discharged from the second exhaust pipe 14, the air flow drives the generator assembly 15 to generate electricity, and the heating net heats the particulate matters trapped by the combustion particulate trap 112, as shown in fig. 3.
Further, the method further comprises:
the first pre-tightening force F1 is smaller than the second pre-tightening force F2, and when the thrust Fv is larger than the first pre-tightening force F1 and the second pre-tightening force F2 and the first elastic valve 114 and/or the second elastic valve 115 are in a closed state, a fault message of the first elastic valve 114 and/or the second elastic valve 115 is sent.
Third embodiment
The invention also relates to a vehicle which comprises the vehicle exhaust particle trapping and regenerating device.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

Claims (9)

1. A vehicle exhaust particle trapping and regenerating device is characterized by comprising a particle trapping assembly, an air inlet pipe, a first exhaust pipe and a second exhaust pipe, wherein the particle trapping assembly comprises a shell and a particle trap arranged in the shell, an air inlet cavity is formed in the shell, a valve cover is arranged outside the shell, an air collecting cavity is formed in the valve cover, a first shunt port and a second shunt port which are communicated with the air collecting cavity are formed in the shell, a first elastic valve for sealing the first shunt port and a second elastic valve for sealing the second shunt port are arranged in the valve cover, a heating net is arranged on the particle trap, one end of the air inlet pipe is connected with an air source, the other end of the air inlet pipe is communicated with the air inlet cavity, one end of the first exhaust pipe is communicated with an air outlet of the particle trap, one end of the second exhaust pipe is communicated with the air collecting cavity, the vehicle exhaust particle trapping and regenerating device comprises a first exhaust pipe, a second exhaust pipe, a heating net, a first elastic valve, a second elastic valve, a generator assembly and a power generator assembly, wherein the first elastic valve and/or the second elastic valve can be pushed to be opened by air pressure formed in the air inlet cavity, so that the air inlet cavity is communicated with the air collecting cavity, the generator assembly is arranged on the second exhaust pipe and generates power by utilizing airflow in the second exhaust pipe, and the generator assembly is electrically connected with the heating net.
2. The vehicle exhaust particulate trap regeneration device of claim 1, wherein a stiffness coefficient of the first resilient valve is less than a stiffness coefficient of the second resilient valve, and a pressure of air urging the first resilient valve open is less than a pressure of air urging the second resilient valve open.
3. The vehicle exhaust particulate trapping and regenerating device according to claim 1, wherein a mounting hole is provided in said first exhaust pipe, and an end of said second exhaust pipe remote from said valve cover is connected to said mounting hole.
4. The vehicle exhaust particulate trap regeneration device according to claim 1, further comprising a catalyst through which the first exhaust pipe passes at an end remote from the particulate trap.
5. The vehicle exhaust particulate trap regeneration device according to claim 1, wherein a terminal is provided on the housing, one end of the terminal is connected to the heating net, and the other end of the terminal is electrically connected to the generator assembly through a wire.
6. A vehicle exhaust particulate trapping regeneration method, characterized by using the vehicle exhaust particulate trapping regeneration apparatus according to any one of claims 1 to 5, comprising:
when the thrust Fv acting on the first elastic valve and the second elastic valve is smaller than the first pretightening force F1 and the second pretightening force F2 of the first elastic valve and the second elastic valve, the first elastic valve and the second elastic valve are in a closed state, and the airflow passes through the particle catcher and then is exhausted from the first exhaust pipe;
when the thrust Fv is larger than the first pretightening force F1 and/or the second pretightening force F2, the first elastic valve and/or the second elastic valve are/is in an open state, so that the air inlet cavity is communicated with the air collecting cavity, the airflow in the air inlet cavity is divided to the air collecting cavity and is exhausted from the second exhaust pipe, the airflow drives the generator assembly to generate electricity, and the heating net heats and burns the particulate matters trapped by the particulate trap;
the first pre-tightening force F1 is an acting force for pushing the first elastic valve to open; the second pre-tightening force F2 is a force pushing the second elastic valve to open.
7. The vehicle exhaust particulate trap regeneration method according to claim 6, further comprising:
the first pre-tightening force F1 is smaller than the second pre-tightening force F2, and when the thrust Fv is larger than the first pre-tightening force F1 and smaller than the second pre-tightening force F2, the first elastic valve is in an open state, and the second elastic valve is in a closed state.
8. The vehicle exhaust particulate trap regeneration method according to claim 6, further comprising:
the first pre-tightening force F1 is smaller than the second pre-tightening force F2, and when the thrust Fv is larger than the first pre-tightening force F1 and the second pre-tightening force F2 and the first elastic valve and/or the second elastic valve are in a closed state, a fault message of the first elastic valve and/or the second elastic valve is sent.
9. A vehicle characterized by comprising the vehicle exhaust particulate trapping regeneration device according to any one of claims 1 to 5.
CN202010001864.0A 2020-01-02 2020-01-02 Vehicle exhaust particle trapping and regenerating device and method and vehicle Active CN113062789B (en)

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CN115370453B (en) * 2022-08-26 2023-11-14 中国第一汽车股份有限公司 Control method of auxiliary regeneration system of particle trapping device based on solar power supply
CN116335809A (en) * 2023-03-01 2023-06-27 重庆赛力斯新能源汽车设计院有限公司 Range-extending type automobile exhaust system and range-extending type automobile

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FR3054596A1 (en) * 2016-07-29 2018-02-02 Valeo Systemes Thermiques DEVICE FOR REGENERATING A PARTICLE FILTER AND ASSOCIATED ASSEMBLY

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