CN106593600A - Exhaust postprocessing device and method used for engine - Google Patents
Exhaust postprocessing device and method used for engine Download PDFInfo
- Publication number
- CN106593600A CN106593600A CN201611221471.0A CN201611221471A CN106593600A CN 106593600 A CN106593600 A CN 106593600A CN 201611221471 A CN201611221471 A CN 201611221471A CN 106593600 A CN106593600 A CN 106593600A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- electromotor
- treatment
- bypass
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides an exhaust postprocessing device and method used for an engine. The exhaust postprocessing device comprises a postprocessing part used for conducting postprocessing on exhaust of the engine and arranged in an exhaust pipeline, a bypass branch and a bypass valve, wherein an inlet and an outlet of the bypass branch communicate to the exhaust pipeline located at the inlet end and the outlet end of the postprocessing part correspondingly; and the bypass valve is arranged in the bypass branch and used for enabling exhausted gas from the engine to wholly or at least partially bypass the postprocessing part according to commands of an electronic control unit of the engine.
Description
Technical field
The present invention relates to exhaust gas aftertreatment techniques, after being particularly directed to the exhaust gas post-treatment device of electromotor and aerofluxuss
Processing method.
Background technology
With the development of automotive engineering, Vehicle Emission requires more and more higher, for environmental protection, reduces vehicle exhaust
Exhaust emission, country variant has formulated different Abgasgesetz or standard.With the upgrading of Abgasgesetz, emission aftertreatment is gradually
Become the indispensable ingredient of electromotor, but, because emission aftertreatment has certain demand to temperature, send out to meet
Motivation can have under normal operating conditions the emission result for meeting laws and regulations requirement, it usually needs will be relatively low during demarcation
Delivery temperature (also referred to as arranging temperature) under load condition is improved, and its negative effect for bringing is exactly to deteriorate oil consumption.
One thinking of the warm demand of the row of reduction is to reduce idling (having micro oil spout) and throttle for low temperature waste gas under odd-job condition
The cooling that after-treatment components are carried out, it is common practice to which an intake-air throttle valve is set in air inlet pipeline, and in idling
And reduce the aperture of the intake-air throttle valve under the operating mode that throttle is zero, so as to reducing air inflow and then reducing to the cold of post processing
But, but such method needs the time due to the valve response of intake-air throttle valve, correspondingly, when the speed-raising of supercharger needs
Between, this is often impacted to follow-up acceleration, and then has influence on the dynamic property of electromotor.
The content of the invention
In order to solve this problem, present invention aim to address this contradiction, both can guarantee that post processing was not cooled, and
Can guarantee that the dynamic property of acceleration hereafter or application of load.The purpose of the present invention is achieved through the following technical solutions.
A kind of exhaust gas post-treatment device for electromotor, the exhaust gas post-treatment device includes：
For carrying out the after-treatment components of post processing to engine exhaust, the after-treatment components are arranged on gas exhaust piping
In；
Bypass branch, the entrance and exit of the bypass branch is respectively communicated to the arrival end of the after-treatment components and goes out
The gas exhaust piping that mouth end is located；And
Bypass valve, the bypass valve is arranged in the bypass branch, for according to the electronic control unit of electromotor
Instruction enables the aerofluxuss from the electromotor completely or at least partially other by the after-treatment components.
Especially, the bypass valve is on-off valve or aperture valve.
Especially, the bypass branch is independently of the independent branch road of the after-treatment components, or the bypass branch
In being integrated in the casing of the after-treatment components.
Especially, the bypass branch is including any type of low flow losses pipeline or cavity including straight tube.
Especially, the after-treatment components are one or more of SCR, DOC, DPF.
The present invention also provides a kind of exhaust gas after treatment method for electromotor, using the above-mentioned aerofluxuss for electromotor
Performing the exhaust gas after treatment method, the exhaust gas after treatment method comprises the steps after-treatment device：
S1：When electromotor runs, whether whether electronic control unit detection throttle be zero or in there is micro oil spout
Idling mode；
S2：If electronic control unit detects that throttle is zero or the idling mode in there is micro oil spout, the electricity
Sub-control unit is fully opened or the least partially open bypass valve；
S3：If electromotor had both been not at state that throttle is zero not also in the idling mode for having micro oil spout, described
Electronic control unit closes the bypass valve.
It is an advantage of the current invention that：
To post processing part under the conditions of adopting the means of exhaust gas bypass to reduce idling (having micro oil spout) and throttle for zero
Cooling.While reducing cooling, for the dynamic property of electromotor does not produce impact.
Description of the drawings
By the detailed description for reading hereafter preferred implementation, various other advantages and benefit is common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Fig. 1 shows the schematic diagram of the exhaust gas post-treatment device according to embodiment of the present invention.
Fig. 2 shows the control flow chart of the exhaust gas after treatment method according to embodiment of the present invention.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure and the reality that should not be illustrated here
The mode of applying is limited.On the contrary, there is provided these embodiments are able to be best understood from the disclosure, and can be by this public affairs
The scope opened it is complete convey to those skilled in the art.
Describe hereinafter with reference to Fig. 1 and Fig. 2 and filled according to the exhaust aftertreatment for electromotor of embodiment of the present invention
Put with exhaust gas after treatment method according to the embodiment of the present invention.
As shown in figure 1, being included according to the exhaust gas post-treatment device for electromotor of embodiment of the present invention：For to sending out
Motivation aerofluxuss carry out after-treatment components 10, bypass branch 20 and the bypass valve 30 of post processing.The row of being arranged on of after-treatment components 10
In air pipe 40, wherein gas exhaust piping 40 is for example connected to waste pipe.The entrance 21 of bypass branch 20 and outlet 22
It is respectively communicated to the gas exhaust piping 40 that the arrival end 11 and the port of export 12 of after-treatment components 10 are located.Bypass valve 30 is arranged on bypass
In branch road 20, for according to the instruction of the electronic control unit of electromotor enable from the electromotor aerofluxuss 50 fully
Or processing component 10 after bypassing at least in part, for example subsequently discharged with waste gas 60.That is, by the method short circuit of exhaust bypass
After-treatment components 10, so as to reach the dynamic property that electromotor is not affected while post processing is cooled down is reduced.
In addition, bypass valve 30 is on-off valve or aperture valve, and in this case, can be complete according to engine operation condition
Make engine exhaust bypass or engine exhaust is partly bypassed.In addition, bypass branch 20 is independently of post processing portion
The independent branch road of part 10, or it is integrated in the casing of after-treatment components 10, can cause in the latter case arrangement
It is compacter.
In addition, bypass branch 20 can be including any type of low flow losses pipeline or cavity including straight tube,
In this case, the pressure loss is relatively small, once bypass valve 30 is opened, most gases will be flow through by bypass branch 20,
So as to reduce the cooling to after-treatment components 10.
In addition, after-treatment components 10 are SCR (SCR device), DOC (diesel oil oxidation type catalyst converter), DPF (bavins
One or more of oil machine particle trap).Such as after-treatment components 10 are SCR and DOC/DPF, in this case, should
Exhaust gas post-treatment device not only bypasses SCR parts, low except reducing electromotor for DOC and DPF have been also carried out bypass
Load and throttle are beyond the cooling under the conditions of zero to SCR post processings, to decrease the cooling to DOC/DPF, be conducive to by
The carrying out of dynamic regeneration.
The exhaust gas after treatment method for electromotor according to embodiment of the present invention is described referring now to Fig. 2, using upper
Performing the exhaust gas after treatment method, the exhaust gas after treatment method includes the exhaust gas post-treatment device for electromotor stated
Following steps：
S1：When electromotor runs (that is, start), whether whether electronic control unit detection throttle be zero or in having micro-
The idling mode of amount oil spout；
S2：If electronic control unit detects that throttle is zero or the idling mode in there is micro oil spout, the electricity
Sub-control unit is fully opened or the least partially open bypass valve；
S3：If electromotor had both been not at state that throttle is zero not also in the idling mode for having micro oil spout, described
Electronic control unit closes the bypass valve.
Subsequently, the exhaust gas after treatment method terminates.
To post processing part under the conditions of adopting the means of exhaust gas bypass to reduce idling (having micro oil spout) and throttle for zero
Cooling.While reducing cooling, for the dynamic property of electromotor does not produce impact.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (6)
1. a kind of exhaust gas post-treatment device for electromotor, it is characterised in that the exhaust gas post-treatment device includes：
For carrying out the after-treatment components of post processing to engine exhaust, the after-treatment components are arranged in gas exhaust piping；
Bypass branch, the entrance and exit of the bypass branch is respectively communicated to the arrival end and the port of export of the after-treatment components
The gas exhaust piping being located；And
Bypass valve, the bypass valve is arranged in the bypass branch, for according to the instruction of the electronic control unit of electromotor
Enable the aerofluxuss from the electromotor completely or at least partially other by the after-treatment components.
2. exhaust gas post-treatment device according to claim 1, it is characterised in that the bypass valve is on-off valve or aperture
Valve.
3. exhaust gas post-treatment device according to claim 1, it is characterised in that the bypass branch be independently of it is described after
The independent branch road of processing component, or the bypass branch is integrated in the casing of the after-treatment components.
4. exhaust gas post-treatment device according to claim 1, it is characterised in that the bypass branch is including including straight tube
Any type of low flow losses pipeline or cavity.
5. exhaust gas post-treatment device according to claim 1, it is characterised in that the after-treatment components be SCR, DOC,
One or more of DPF.
6. a kind of exhaust gas after treatment method for electromotor, it is characterised in that using according to arbitrary in claim 1 to 5
The exhaust gas post-treatment device for electromotor described in is performing the exhaust gas after treatment method, the exhaust gas after treatment method
Comprise the steps：
S1：When electromotor runs, whether electronic control unit detection throttle is zero or whether is in the idling for having micro oil spout
State；
S2：If electronic control unit detects that throttle is zero or the idling mode in there is micro oil spout, the electronics control
Unit processed is fully opened or the least partially open bypass valve；
S3：If electromotor had both been not at state that throttle is zero not also in the idling mode for having micro oil spout, the electronics
Control unit closes the bypass valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221471.0A CN106593600A (en) | 2016-12-26 | 2016-12-26 | Exhaust postprocessing device and method used for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221471.0A CN106593600A (en) | 2016-12-26 | 2016-12-26 | Exhaust postprocessing device and method used for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106593600A true CN106593600A (en) | 2017-04-26 |
Family
ID=58604199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611221471.0A Pending CN106593600A (en) | 2016-12-26 | 2016-12-26 | Exhaust postprocessing device and method used for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593600A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574287A (en) * | 2017-09-29 | 2019-04-05 | 浚荣科技股份有限公司 | High oxygen-containing water making device |
| CN109707489A (en) * | 2018-12-27 | 2019-05-03 | 凯龙高科技股份有限公司 | A kind of SCR control system peculiar to vessel |
| CN110320045A (en) * | 2019-07-09 | 2019-10-11 | 安徽江淮汽车集团股份有限公司 | The device and method of oil measurement are altered for engine |
| CN114183227A (en) * | 2021-12-21 | 2022-03-15 | 泰安九洲金城机械有限公司 | Double-pipeline flue gas treatment system |
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| US6871490B2 (en) * | 2002-12-19 | 2005-03-29 | Caterpillar Inc | Emissions control system for increasing selective catalytic reduction efficiency |
| CN201025105Y (en) * | 2007-04-20 | 2008-02-20 | 北京工业大学 | An electronic control device for exhaust noise |
| CN103726934A (en) * | 2014-01-13 | 2014-04-16 | 东风汽车公司 | Exhaust control method for fully opening hybrid power automobile air damper |
| CN106194359A (en) * | 2014-10-20 | 2016-12-07 | 现代自动车株式会社 | For controlling the method and system of the exhaust stream in engine system |
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2016
- 2016-12-26 CN CN201611221471.0A patent/CN106593600A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6871490B2 (en) * | 2002-12-19 | 2005-03-29 | Caterpillar Inc | Emissions control system for increasing selective catalytic reduction efficiency |
| DE60314360D1 (en) * | 2002-12-19 | 2007-07-26 | Caterpillar Inc | Emission control system for increasing the performance of a selective catalytic reduction |
| DE60314360T2 (en) * | 2002-12-19 | 2008-02-21 | Caterpillar Inc., Peoria | Emission control system for increasing the performance of a selective catalytic reduction |
| CN201025105Y (en) * | 2007-04-20 | 2008-02-20 | 北京工业大学 | An electronic control device for exhaust noise |
| CN103726934A (en) * | 2014-01-13 | 2014-04-16 | 东风汽车公司 | Exhaust control method for fully opening hybrid power automobile air damper |
| CN106194359A (en) * | 2014-10-20 | 2016-12-07 | 现代自动车株式会社 | For controlling the method and system of the exhaust stream in engine system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574287A (en) * | 2017-09-29 | 2019-04-05 | 浚荣科技股份有限公司 | High oxygen-containing water making device |
| CN109707489A (en) * | 2018-12-27 | 2019-05-03 | 凯龙高科技股份有限公司 | A kind of SCR control system peculiar to vessel |
| CN110320045A (en) * | 2019-07-09 | 2019-10-11 | 安徽江淮汽车集团股份有限公司 | The device and method of oil measurement are altered for engine |
| CN114183227A (en) * | 2021-12-21 | 2022-03-15 | 泰安九洲金城机械有限公司 | Double-pipeline flue gas treatment system |
| CN114183227B (en) * | 2021-12-21 | 2024-07-02 | 泰安九洲金城机械有限公司 | Double-pipeline flue gas treatment system |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170426 |