CN116335809A - Range-extending type automobile exhaust system and range-extending type automobile - Google Patents
Range-extending type automobile exhaust system and range-extending type automobile Download PDFInfo
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- CN116335809A CN116335809A CN202310186918.9A CN202310186918A CN116335809A CN 116335809 A CN116335809 A CN 116335809A CN 202310186918 A CN202310186918 A CN 202310186918A CN 116335809 A CN116335809 A CN 116335809A
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- 239000002245 particle Substances 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000003197 catalytic effect Effects 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000004606 Fillers/Extenders Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
-
- 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
-
- 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
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/06—Exhaust treating devices having provisions not otherwise provided for for improving exhaust evacuation or circulation, or reducing back-pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The application discloses an extended range automobile exhaust system and an extended range automobile. The device comprises a first connecting component, an exhaust system middle section assembly and a control device, wherein the first connecting component is designed, and the input end of the first connecting component is connected with the output end of the exhaust system front section assembly; the first connecting component is provided with a first state and a second state, and in the first state, the input end of the first connecting component is communicated with the first output end; in the second state, the input end of the first connecting component is communicated with the second output end; the middle section assembly of the exhaust system comprises a first exhaust branch and a second exhaust branch, and the input end of the first exhaust branch is communicated with the first output end; the input end of the second exhaust branch is communicated with the second output end; the output ends of the first exhaust branch and the second exhaust branch are commonly connected with an exhaust system rear section assembly; the second exhaust branch is connected in series with a particle trapping device; and the control device is used for switching the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine.
Description
Technical Field
The disclosure relates to the technical field of range-extending automobile exhaust, in particular to a range-extending automobile exhaust system and a range-extending automobile.
Background
When the electric quantity of the power battery is sufficient, the motor is driven by the power battery to provide the driving power requirement of the whole vehicle, and the engine does not participate in the work at the moment; when the electric quantity of the power battery is consumed to a certain extent, the engine is started to generate electricity, and the power battery is charged or directly powered to the driving motor; when the power battery is charged to a certain electric quantity, the engine stops working again. In such a way, the engine is frequently started, and gaseous and particulate pollutants are discharged more when the engine is cold started, so that the discharge exceeds the standard; in order to control the particulate matter exhaust system, the particulate matter exhaust system is connected with a particulate trap for capturing and collecting particulates after the three-way catalytic converter, and the back pressure of the exhaust system is increased after the particulate trap is increased to influence the efficiency of all working conditions of the range extender. The invention is provided for the situation that the engine is frequently cold started and has more particulate matter emission, and the engine is preheated and has less particulate matter emission, but the engine efficiency is affected due to the high back pressure of an exhaust system.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide an extended range automotive exhaust system and an extended range automotive vehicle that reduces the occurrence of excessive back pressure under all operating conditions in the exhaust system.
In a first aspect, an extended range automotive exhaust system includes:
the input end of the first connecting component is connected with the output end of the front section assembly of the exhaust system; the first connecting component is provided with a first output end and a second output end; the first connecting component is provided with a first state and a second state, and in the first state, the input end of the first connecting component is communicated with the first output end; in the second state, the input end of the first connecting component is communicated with the second output end;
the exhaust system middle section assembly comprises a first exhaust branch and a second exhaust branch, and the input end of the first exhaust branch is communicated with the first output end; the input end of the second exhaust branch is communicated with the second output end; the output end of the first exhaust branch and the output end of the second exhaust branch are commonly connected with an exhaust system rear section assembly; the second exhaust branch is connected with a particle trapping device in series;
and the control device is configured to switch the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine.
According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps:
a second connection assembly having a first input and a second input; the first input end is connected with the output end of the first exhaust branch; the second input end is connected with the output end of the second exhaust branch; and the output end of the second connecting component is connected with the rear section assembly of the exhaust system.
According to the technical scheme provided by the embodiment of the application, the front section assembly of the exhaust system comprises a three-way catalytic converter and a corrugated pipe assembly which are sequentially connected and communicated.
According to the technical scheme provided by the embodiment of the application, the input end of the particle trapping device is provided with a temperature sensor.
According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps: the pressure difference sensor, pressure difference sensor's input is connected with first connecting pipe, pressure difference sensor's output is connected with the second connecting pipe, the free end of first connecting pipe with particle catch device's input is connected, the free end of second connecting pipe with particle catch device's output is connected.
According to the technical scheme provided by the embodiment of the application, the control device comprises:
the first acquisition module is configured to acquire the ambient temperature around the vehicle body;
the first processing module is configured to judge that the ambient temperature of the vehicle body is greater than or equal to a first preset temperature threshold value, and switch the first connecting piece to a first state.
According to the technical scheme provided by the embodiment of the application, the control device further comprises:
the second acquisition module is configured to acquire the water temperature of the engine;
the second processing module is configured to judge that the ambient temperature of the vehicle body is greater than or equal to a first preset temperature threshold, and when the water temperature of the engine is less than a second preset temperature threshold, switch the first connecting component to a second state.
According to the technical scheme provided by the embodiment of the application, the control device further comprises:
and the third processing module is configured to switch the first connecting component to a first state when the temperature of the surrounding environment of the vehicle body is larger than or equal to a first preset temperature threshold and the temperature of the water of the engine is larger than or equal to a second preset temperature threshold.
According to the technical scheme provided by the embodiment of the application, the control device further comprises:
the third acquisition module is configured to acquire the pressure difference between the input end and the output end of the particle trapping device;
the fourth processing module is configured to determine that the pressure difference between the input end and the output end of the particle capturing device is greater than or equal to a first preset pressure difference threshold value, and send out a first alarm signal when the pressure difference between the input end and the output end of the particle capturing device is less than a second preset pressure difference threshold value;
and the fifth processing module is configured to send out a second alarm signal when the pressure difference between the input end and the output end of the particle trapping device is larger than or equal to a second preset pressure difference threshold value.
In a second aspect, an extended range automobile includes: an extended range automotive exhaust system according to any one of the preceding claims.
In summary, the present application is designed with a first connection component, and an input end of the first connection component is connected with an output end of a front section assembly of the exhaust system; the exhaust system front section assembly is used for purifying three pollutants including hydrocarbon, carbon monoxide and oxynitride in automobile exhaust, and the first connecting component is provided with a first output end and a second output end; the first connecting component is provided with a first state and a second state, and in the first state, the input end of the first connecting component is communicated with the first output end; in the second state, the input end of the first connecting component is communicated with the second output end; the exhaust system middle section assembly comprises a first exhaust branch and a second exhaust branch, and the input end of the first exhaust branch is communicated with the first output end; the input end of the second exhaust branch is communicated with the second output end; the output end of the first exhaust branch and the output end of the second exhaust branch are commonly connected with an exhaust system rear section assembly; the second exhaust branch is connected with a particle trapping device in series; the control device is configured to switch the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine;
when the automobile is electrified, the control device controls to switch to a first state, the first connecting component is connected with the first exhaust branch and the second exhaust branch is closed, so that the environment temperature is high, combustion is complete when the engine is started, and the discharged automobile exhaust has fewer particles, so that the particle trapping device is not required to trap the particles;
when the automobile is in a starting or speed changing state, the control device controls to switch to a second state, the first connecting component is connected with the second exhaust branch and closes the first exhaust branch, so that the water temperature of the engine is lower, more particles are generated when the engine works, the second exhaust branch is required to be connected, and the particle trapping device is used for trapping the particles;
when the automobile runs to be stable, the control device controls to switch to a first state, the first connecting component is connected with the first exhaust branch and closes the second exhaust branch, at the moment, the water temperature of the engine is higher, the automobile runs to be stable, the number of particles generated by the operation of the engine is less, and the particle trapping device is not required to trap the particles, so that the first exhaust branch of the single pipe is connected.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic diagram of an extended range automotive exhaust system.
FIG. 2 is a schematic diagram of a first configuration of an extended range vehicle exhaust system control device.
FIG. 3 is a schematic diagram of a second configuration of an extended range vehicle exhaust system control device.
FIG. 4 is a schematic diagram of a third configuration of an extended range vehicle exhaust system control device.
FIG. 5 is a schematic diagram of a fourth configuration of an extended range vehicle exhaust system control device.
Reference numerals in the drawings: 1. a first connection assembly; 2. an exhaust system front section assembly; 3. a mid-section assembly of the exhaust system; 4. a first exhaust branch; 5. a second exhaust branch; 6. an exhaust system rear section assembly; 7. a particle catcher; 8. a second connection assembly; 9. a three-way catalytic converter; 10. a bellows assembly; 11. a temperature sensor; 12. a differential pressure sensor; 13. a first connection pipe; 14. a second connection pipe; 100. a first acquisition module; 200. a first processing module; 300. a second acquisition module; 400. a second processing module; 500. a third processing module; 600. a third acquisition module; 700. a fourth processing module; 800. and a fifth processing module.
Detailed Description
The present application is described in further detail below with reference to the 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 noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Please refer to fig. 1, the extended range automobile exhaust system provided in the present application includes:
the exhaust system comprises a first connecting component 1, wherein the input end of the first connecting component 1 is connected with the output end of an exhaust system front section assembly 2; the first connecting assembly 1 has a first output end and a second output end; the first connecting component 1 has a first state and a second state, and in the first state, the input end of the first connecting component 1 is communicated with the first output end; in the second state, the input end of the first connecting component 1 is communicated with the second output end;
an exhaust system middle section assembly 3, wherein the exhaust system middle section assembly 3 comprises a first exhaust branch 4 and a second exhaust branch 5, and the input end of the first exhaust branch 4 is communicated with the first output end; the input end of the second exhaust branch 5 is communicated with the second output end; the output end of the first exhaust branch 4 and the output end of the second exhaust branch 5 are commonly connected with an exhaust system rear section assembly 6; the second exhaust branch 5 is connected with a particle trapping device 7 in series;
and the control device is configured to switch the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine.
In the present embodiment, the first connection assembly 1 has an input terminal, a first output terminal, and a second output terminal;
further, the first connecting component 1 is of a type such as a three-way electrically controlled valve;
further, the first connecting component 1 is electrically connected with the control device through a CAN wire;
an exhaust system front-end assembly 2 for purifying three pollutants of hydrocarbon, carbon monoxide and oxynitride in automobile exhaust;
the input end of the first connecting component 1 is connected with the output end of the front section assembly 2 of the exhaust system; the first connecting component 1 has a first state and a second state, and in the first state, the input end of the first connecting component 1 is communicated with the first output end; in the second state, the input end of the first connecting component 1 is communicated with the second output end;
an exhaust system mid-section assembly 3 for delivering purified automobile exhaust;
specifically, the exhaust system mid-section assembly 3 includes a first exhaust branch 4 and a second exhaust branch 5;
a first exhaust branch 4 for delivering purified vehicle exhaust gas in a first state;
a second exhaust branch 5 for delivering the purified automobile exhaust and filtering out particulate matters in the automobile exhaust in a second state;
the input end of the first exhaust branch 4 is communicated with the first output end; the input end of the second exhaust branch 5 is communicated with the second output end;
an exhaust system rear-section assembly 6 for delivering purified automobile exhaust gas;
further, the input end of the exhaust system rear section assembly 6 is connected with the output end of the first exhaust branch 4 and the output end of the second exhaust branch 5;
the particle trapping device 7 is arranged on the second exhaust branch 5 in series and is used for trapping particles in the purified automobile exhaust;
and the control device is configured to switch the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine.
As shown in fig. 1, a second connection component 8 for communicating the first exhaust branch 4 and the second exhaust branch 5 with the exhaust system rear stage assembly 6;
specifically, the second connection assembly 8 has a first input and a second input;
the first input end is connected with the output end of the first exhaust branch 4; the second input end is connected with the output end of the second exhaust branch 5; the output end of the second connecting component 8 is connected with the rear section assembly 6 of the exhaust system.
As shown in fig. 1, specifically, the front section assembly 2 of the exhaust system includes a three-way catalytic converter 9 and a bellows assembly 10 that are connected and communicated in sequence;
the three-way catalytic converter 9 is used for purifying three pollutants of hydrocarbon, carbon monoxide and oxynitride in the automobile exhaust and converting the three pollutants into harmless water vapor H2O, carbon dioxide CO2 and nitrogen N2 through oxidation and reduction, and the main reaction formula is as follows:
oxidation reaction: CO+1/2O2→CO2;
4HC+5O2→2H2O+4CO2；
reduction reaction: NO+CO→1/2N2+CO2;
4HC+10NO→5N2+2H2O+4CO2；
further, only when the combustible mixture gas with the stoichiometric air-fuel ratio is combusted, that is, when the excess air ratio is 1, the three-way catalytic converter 9 can simultaneously have higher purification efficiency on three pollutants, because HC, CO and the like are required as reducing agents for reducing NOx to N2 under the action of the catalyst, when the air is excessive, the reducing agents such as HC, CO and the like firstly perform oxidation reaction with oxygen, and the reduction reaction of NOx cannot be performed; when the air is insufficient, HC and CO cannot be completely oxidized;
further, the cylinder body of the three-way catalytic converter 9 comprises a front end cover, a front-stage cylinder body, a rear-stage cylinder body and a rear end cover; one end of the front end cover is connected with the air inlet pipe, and the other end of the front end cover is connected with the front-stage cylinder; one end of the front-stage cylinder body far away from the front end cover is connected with the rear-stage cylinder body; one end of the rear-stage cylinder body far away from the front-stage cylinder body is connected with a rear end cover; one end of the rear end cover, which is far away from the rear-stage cylinder, is connected with the corrugated pipe assembly 10;
further, the radius of the port of the front end cover connected with the air inlet pipe is smaller than that of the port of the front end cover connected with the front-stage cylinder; the radius of the port of the rear end cover connected with the corrugated pipe assembly 10 is smaller than that of the port of the rear end cover connected with the rear cylinder;
further, the peripheral radius of the front-stage cylinder is smaller than that of the rear-stage cylinder;
the bellows assembly 10 is a tubular elastic sensing element connected in a folding and telescoping direction by a foldable bellows for extending in a length direction of the tube under the action of internal pressure during operation to cause displacement of the movable end in relation to the pressure.
As shown in fig. 1, a temperature sensor 11 is provided at an input end of the particulate trap 7, for detecting the temperature of the purified automobile exhaust;
further, the temperature sensor 11 is electrically connected with the control device through a CAN line, and the control device detects the temperature of the purified automobile exhaust in real time through the CAN line.
As shown in fig. 1, a differential pressure sensor 12 for measuring a differential pressure between an input end and an output end of the particle trap 7;
a first connecting pipe 13, one end of which is connected with the input end of the differential pressure sensor 12, and the other end of which is connected with the input end of the particle trapping device 7, for conveying the purified automobile exhaust into the particle trapping device 7;
and one end of the second connecting pipe 14 is connected with the output end of the differential pressure sensor 12, and the other end of the second connecting pipe is connected with the output end of the particle trapping device 7 and is used for conveying the purified automobile exhaust out of the particle trapping device 7.
As shown in fig. 2, the control device includes:
the first acquisition module 100, the first acquisition module 100 is configured to acquire the ambient temperature around the vehicle body;
the first processing module 200, the first processing module 200 is configured to determine that the temperature of the surrounding environment of the vehicle body is greater than or equal to a first preset temperature threshold, and switch the first connecting piece to a first state;
when the vehicle is electrified, the first acquisition module 100 is used for acquiring the ambient temperature of the vehicle body, the first processing module 200 is used for switching the first connecting piece to the first state when judging that the ambient temperature of the vehicle body is greater than or equal to a first preset temperature threshold value, the first connecting component 1 is connected with the first exhaust branch 4 and is closed with the second exhaust branch 5, at the moment, the ambient temperature is high, the engine is completely combusted when started, and less particulate matters are discharged from the tail gas of the vehicle, so that the particulate matters are not required to be trapped by the particulate matters trapping device 7;
further, the first preset temperature threshold is 30 ℃;
further, the first collecting module 100 collects the ambient temperature of the vehicle body, and when the first processing module 200 determines that the ambient temperature of the vehicle body is less than the first preset temperature threshold, the ambient temperature of the vehicle body is continuously collected in real time.
As shown in fig. 3, the control device further includes:
the second acquisition module 300, the second acquisition module 300 is configured to acquire an engine water temperature;
the second processing module 400 is configured to determine that the ambient temperature around the vehicle body is greater than or equal to a first preset temperature threshold, and when the water temperature of the engine is less than a second preset temperature threshold, switch the first connection assembly 1 to a second state;
when the vehicle is electrified, firstly, the ambient temperature of the vehicle body is collected through the first collecting module 100, the water temperature of the engine is collected through the second collecting module 300, the second processing module 400 judges that the ambient temperature of the vehicle body is larger than or equal to a first preset temperature threshold value, and when the water temperature of the engine is smaller than a second preset temperature threshold value, the first connecting component 1 is switched to a second state, the first connecting component 1 is connected with the second exhaust branch 5, the first exhaust branch 4 is closed, at the moment, the water temperature of the engine is lower, the vehicle is in a starting or speed changing state, more particles are generated when the engine works, the second exhaust branch 5 is required to be connected, and the particle trapping device 7 is used for trapping the particles;
further, the second preset temperature threshold is 70 ℃.
As shown in fig. 4, the control device further includes:
the third processing module 500, the third processing module 500 is configured to determine that the ambient temperature around the vehicle body is greater than or equal to a first preset temperature threshold, and when the water temperature of the engine is greater than or equal to a second preset temperature threshold, switch the first connection assembly 1 to the first state;
when the vehicle is electrified, the temperature of the surrounding environment of the vehicle body is firstly collected through the first collecting module 100, the temperature of the water of the engine is collected through the second collecting module 300, the third processing module 500 judges that the temperature of the surrounding environment of the vehicle body is larger than or equal to a first preset temperature threshold value, and when the temperature of the water of the engine is larger than or equal to a second preset temperature threshold value, the first connecting component 1 is switched to a first state, the first exhaust branch 4 is connected by the first connecting component 1, the second exhaust branch 5 is closed, the temperature of the water of the engine is higher at the moment, the running of the automobile tends to be stable, the generated particulate matters of the engine work are less, and the particulate matters are not required to be trapped by the particulate matters trapping device 7, so the first exhaust branch 4 of a single pipe is connected.
As shown in fig. 5, the control device further includes:
the third collection module 600, the third collection module 600 is configured to collect a pressure difference between an input end and an output end of the particle capturing device 7;
further, the third collection module 600 collects the pressure difference between the input end and the output end of the particle capturing device 7 through the CAN line;
the fourth processing module 700, where the fourth processing module 700 is configured to determine that the pressure difference between the input end and the output end of the particle capturing device 7 is greater than or equal to a first preset pressure difference threshold, and send out a first alarm signal when the pressure difference between the input end and the output end of the particle capturing device 7 is less than a second preset pressure difference threshold;
further, when the pressure difference between the input end and the output end of the particle capturing device 7 is a first preset pressure difference threshold, the weight of the particles in the particle capturing device 7 is 5g;
further, when the first alarm signal is sent, the particulate matters in the particulate trapping device 7 can be cleaned by operating at a high speed and burning the particulate matters in the particulate trapping device 7 by the high-temperature tail gas exhausted from the exhaust system;
the fifth processing module 800, where the fifth processing module 800 is configured to send out a second alarm signal when the differential pressure between the input end and the output end of the particle capturing device 7 is greater than or equal to a second preset differential pressure threshold;
further, when the pressure difference between the input end and the output end of the particle capturing device 7 is the second preset pressure difference threshold, the weight of the particles in the particle capturing device 7 is 7g;
further, when the second alarm signal is issued, the particle catch device 7 is replaced by stopping;
the third acquisition module 600 acquires the pressure difference between the input end and the output end of the particle capture device 7 in real time through the CAN line, and the fourth processing module 700 judges that the pressure difference between the input end and the output end of the particle capture device 7 is larger than or equal to a first preset pressure difference threshold value, and when the pressure difference between the input end and the output end of the particle capture device 7 is smaller than a second preset pressure difference threshold value, a first alarm signal is sent out, and at the moment, the particle capture device 7 CAN burn at a high temperature through long-time high-speed stable operation to realize regeneration treatment; the fifth processing module 800 sends out a second alarm signal when the differential pressure between the input end and the output end of the particle capturing device 7 is greater than or equal to a second preset differential pressure threshold value, and at this time, the parking regeneration can be realized by stopping and replacing the particle capturing device 7.
Example two
The application provides an increase range formula car, include: the extended-range automotive exhaust system of any one of the embodiments;
further, the automobile exhaust system mainly discharges exhaust gas discharged by the engine, and simultaneously reduces pollution of the discharged exhaust gas;
furthermore, on the basis that the range-extended automobile is a pure electric automobile, an internal combustion engine is added to charge a power battery or directly drive a motor to increase the endurance mileage, so that the electric automobile with short driving mileage of the pure electric automobile is overcome;
under the normal condition, the power battery of the extended range automobile stores enough electric quantity, and the power source of the driving motor is mainly the power battery, so that the form characteristic of the automobile is the same as that of the pure electric automobile in a certain running time range, and zero oil consumption, zero pollution and zero emission are truly realized;
the range-extending automobile power system mainly comprises four parts: the system comprises a power battery system, a power driving system, a range extender and a whole vehicle control system; the power battery system provides power for the motor driving system and provides reverse dragging current for starting the range extender engine; the driving system provides power output for the vehicle, the motor controller receives the command of the whole vehicle controller to control the vehicle to run, the small-displacement engine and the engine directly connected with the small-displacement engine form a range extender, and the power battery is charged by rectifying the alternating current of the generator into direct current matched with the voltage of the power battery.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (10)
1. An extended range automotive exhaust system, comprising:
the exhaust system comprises a first connecting component (1), wherein the input end of the first connecting component (1) is connected with the output end of an exhaust system front section assembly (2); the first connecting assembly (1) has a first output and a second output; the first connecting component (1) is provided with a first state and a second state, and in the first state, the input end of the first connecting component (1) is communicated with the first output end; in the second state, the input end of the first connecting component (1) is communicated with the second output end;
the exhaust system middle section assembly (3), the exhaust system middle section assembly (3) comprises a first exhaust branch (4) and a second exhaust branch (5), and the input end of the first exhaust branch (4) is communicated with the first output end; the input end of the second exhaust branch (5) is communicated with the second output end; the output end of the first exhaust branch (4) and the output end of the second exhaust branch (5) are commonly connected with an exhaust system rear-section assembly (6); the second exhaust branch (5) is connected with a particle trapping device (7) in series;
and the control device is configured to switch the exhaust connection assembly to be in a first state or a second state according to the working condition of the engine.
2. The extended range automotive exhaust system of claim 2, further comprising:
-a second connection assembly (8), the second connection assembly (8) having a first input and a second input; the first input end is connected with the output end of the first exhaust branch (4); the second input end is connected with the output end of the second exhaust branch (5); the output end of the second connecting component (8) is connected with the rear section assembly (6) of the exhaust system.
3. An extended range automotive exhaust system according to claim 1, wherein: the exhaust system front section assembly (2) comprises a three-way catalytic converter (9) and a corrugated pipe assembly (10) which are sequentially connected and communicated.
4. An extended range automotive exhaust system according to claim 1, wherein: the input end of the particle trapping device (7) is provided with a temperature sensor (11).
5. The extended range automotive exhaust system of claim 1, further comprising: the particle collecting device comprises a pressure difference sensor (12), wherein the input end of the pressure difference sensor (12) is connected with a first connecting pipe (13), the output end of the pressure difference sensor (12) is connected with a second connecting pipe (14), the free end of the first connecting pipe (13) is connected with the input end of the particle collecting device (7), and the free end of the second connecting pipe (14) is connected with the output end of the particle collecting device (7).
6. The extended range automotive exhaust system of claim 1, wherein the control means comprises:
the first acquisition module is configured to acquire the ambient temperature around the vehicle body;
the first processing module is configured to judge that the ambient temperature of the vehicle body is greater than or equal to a first preset temperature threshold value, and switch the first connecting piece to a first state.
7. The extended range automotive exhaust system of claim 6, wherein said control means further comprises:
the second acquisition module is configured to acquire the water temperature of the engine;
and the second processing module is configured to switch the first connecting component (1) to a second state when the ambient temperature of the vehicle body is larger than or equal to a first preset temperature threshold and the water temperature of the engine is smaller than a second preset temperature threshold.
8. The extended range automotive exhaust system of claim 7, wherein said control means further comprises:
and the third processing module is configured to switch the first connecting component (1) to a first state when the temperature of the surrounding environment of the vehicle body is larger than or equal to a first preset temperature threshold value and the temperature of the water of the engine is larger than or equal to a second preset temperature threshold value.
9. The extended range automotive exhaust system of claim 8, wherein the control device further comprises:
the third acquisition module is configured to acquire the pressure difference between the input end and the output end of the particle trapping device (7);
the fourth processing module is configured to determine that the pressure difference between the input end and the output end of the particle capturing device (7) is greater than or equal to a first preset pressure difference threshold value, and send out a first alarm signal when the pressure difference between the input end and the output end of the particle capturing device (7) is less than a second preset pressure difference threshold value;
and the fifth processing module is configured to send out a second alarm signal when the pressure difference between the input end and the output end of the particle trapping device (7) is larger than or equal to a second preset pressure difference threshold value.
10. An extended range automobile, comprising: an extended range automotive exhaust system according to any one of claims 1 to 9.
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