WO2017220083A1 - Einrichtung zur abgasreinigung mit filterfunktion und diagnoseverfahren für diese einrichtung - Google Patents
Einrichtung zur abgasreinigung mit filterfunktion und diagnoseverfahren für diese einrichtung Download PDFInfo
- Publication number
- WO2017220083A1 WO2017220083A1 PCT/DE2017/100532 DE2017100532W WO2017220083A1 WO 2017220083 A1 WO2017220083 A1 WO 2017220083A1 DE 2017100532 W DE2017100532 W DE 2017100532W WO 2017220083 A1 WO2017220083 A1 WO 2017220083A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxygen
- wall
- substrate
- exhaust gas
- lambda
- Prior art date
Links
- 238000002405 diagnostic procedure Methods 0.000 title description 4
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 29
- 230000006378 damage Effects 0.000 claims abstract description 12
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 59
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 38
- 239000001301 oxygen Substances 0.000 claims description 38
- 229910052760 oxygen Inorganic materials 0.000 claims description 38
- 239000000523 sample Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 24
- 238000000746 purification Methods 0.000 claims description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 17
- 238000003745 diagnosis Methods 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 239000011232 storage material Substances 0.000 claims description 9
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000002950 deficient Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009795 derivation Methods 0.000 description 4
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
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- 238000012360 testing method Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas sensor
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0418—Methods of control or diagnosing using integration or an accumulated value within an elapsed period
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1624—Catalyst oxygen storage capacity
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
- F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0816—Oxygen storage capacity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
-
- 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
Definitions
- the invention relates to a device for exhaust gas purification with a filter function, preferably a particle filter and a diagnostic method for this device.
- Filters for exhaust systems are known in particular as particulate filters for diesel engines. Particulate filters continue to be used in petrol engines.
- the exhaust gas cleaning components must comply with the statutory requirements in
- OBD on-board diagnostic
- Oxygen filling model of the catalyst are considered in terms of their course and from these a diagnosis information related to the degree of aging is formed. A diagnosis regarding a filter function does not take place here.
- the signal of the lambda probes is used to determine the oxygen storage capacity.
- the catalyst or its porous base substrate is coated with a catalytically active material. Destruction of the channel walls is believed to result in decreasing catalytic efficacy, and hence reduced efficiency Filter effect can be diagnosed.
- the method has only a low selectivity, since on the one hand, the catalytic effect can decrease without a reduced filter function is present and further destructions in the end
- Plug area of the closed channels continues to be given a good catalytic activity even if particles can pass unfiltered, since already at the
- Catalyst wherein an oxygen storage capacity of the catalytic device is determined.
- the storage capacity is determined by means of the lambda probe signal after filtering and in response to a fat-lean / lean fat jump. Damage to the filter is diagnosed from a decreasing storage capacity.
- a catalytically active particle filter which has long ago in its flow direction in a porous substrate channels which are mutually closed on the inflow and outflow.
- the exhaust gas flow can thus pass only through the filter substrate to the downstream side.
- the coating containing the storage material is introduced inhomogeneously onto or into the substrate in such a way that the storage material concentration on the upstream side is highest.
- a channel end zone is described which is based exclusively on the latter
- the applied material is arranged to act as an intact filter in its interaction with the
- the object of the invention is a device for exhaust gas purification with a filter function, in particular a particle filter with good diagnostic properties provide and provide a method of diagnosis of this device, which allows the most accurate detection of disturbances of the filter capability.
- the device for exhaust gas purification with filter function consists of a gas-permeable substrate, which forms a wall-flow filter, which has at least closed end channels for the flowing exhaust gas.
- the exhaust gas is through the end
- oxygen-storing coating is provided.
- the oxygen-storing coating is provided.
- Coating is preferably a cerium oxide.
- the oxygen-storing material is predominantly coated on the outflow side of the device on the surface of the substrate. This may also be a coating of the pores in the substrate wall which is carried out from the outlet side and which is advantageous, in particular, for achieving a low exhaust backpressure. Based on the mass of the oxygen storage material, the proportion of coated on a downstream surface of the substrate is higher than that on an upstream surface of the substrate. This can be about
- the mass of the oxygen-storing material is inhomogeneously distributed on the flow path of the exhaust gases through the device, so that the amount of the oxygen-storing material increases towards the downstream side.
- the amount of oxygen-storing material coated on the downstream surface of the substrate is greater than 50% based on the total mass of the oxygen-storing material of the device.
- the substrate on the inlet side has no oxygen-storing coating, so that only the outlet side of the device is coated with oxygen-storing material on the downstream surface of the device. In the case of a breakthrough in the outlet-side plug region, the exhaust gas flows almost completely past the oxygen-storing coating.
- the device is a particulate filter comprising, as the oxygen storage material, a ceria and / or a ceria-containing mixture which is coated on the surface of a ceramic substrate, e.g.
- the average pore size of the coating is smaller than the pore size of the substrate, the substrate preferably having a pore size smaller than 30 ⁇ m, particularly preferably between 10 and 20 ⁇ m.
- Wandstromfilters in relation to the outlet channels a ratio greater than 1 on.
- the diameter of the inlet channels is thus larger, whereby the flow resistance of the inlet channels with respect to the outlet channels is smaller. If a breakthrough occurs in the plug region of the inlet channels, the exhaust gas is thus reduced by the reduced
- the device for exhaust gas purification with filter function is preferably a particle filter, which is arranged in the flow path of the exhaust gases of a gasoline engine behind a 3-way catalytic converter.
- the improved diagnosability is particularly advantageous here, since an increase in the exhaust gas back pressure is not desirable and
- the design of the filter function must be such that an increased pressure drop across the filter is low.
- the method according to the invention for the diagnosis of the device for exhaust gas purification with filter function diagnoses a wall-flow filter, which consists of a gas-permeable substrate that mutually on and downstream sealed channels.
- the exhaust gas flow is passed through the duct walls.
- the substrate that forms the channel wall has an oxygen-storing coating which is coated on the upstream and downstream surface of the substrate with different proportions, wherein the amount of oxygen-storing material of the coating on the downstream side of the wall-flow filter is greater than that on the upstream side and to diagnose the filtering capability of the device
- Oxygen storage capacity is determined
- the degree of damage is quantified when the storage capacity decreases, and the influence of the decreasing amount is quantitatively determined
- Comparison data is determined and the device is diagnosed as defective with respect to the filter function when a defined threshold value of the degree of separation is exceeded.
- the device is a wall-flow filter according to claims 1-9 wherein the oxygen-storing material, based on the total mass of the oxygen-storing material, to a proportion of> 50% on the downstream surface of the substrate is coated and wherein the oxygen storage capacity is determined by lambda probes.
- lambda probes are at least one lambda probe in the flow path in front of the device and another lambda probe directly in the flow path to the device.
- the storage capacity is calculated from the comparison of the signals of the lambda probe before and after the device with knowledge of
- the storage capacity is determined from a fat-lean jump by determining the proportion of the exhaust gas mass flow which is necessary for the storage layer To fill oxygen. This can be recognized by the time delay, which exists between the signal of the upstream and after the device arranged lambda probe. Taking into account the flow time, the amount of exhaust gas is determined, which is necessary in lean operation to replenish the oxygen storage. After filling the oxygen storage, the signal of the arranged after the device lambda probe follows the signal of the sensor arranged in front of the device. From the time delay, the amount of exhaust gas and the lambda value before the device, the oxygen storage ability can be judged. A corresponding method can also be used for a lean-fat jump.
- the storage of the oxygen is evaluated.
- the consideration of the time delay of the lambda jump from lambda> 1 to lower lambda values into the rich region takes place.
- the dissolution of the oxygen delays the signal jump in the rich region at the lambda probe after the device, so that also here from the exhaust gas mass, lambda value and time delay, an oxygen storage capacity can be determined.
- One possible embodiment is the determination of the area enclosed between the lambda value before the wall-flow filter and the lambda value after the wall-flow filter. A large surface area is characteristic of a high oxygen storage capacity.
- FIG. 1 is a schematic view of the device for exhaust gas aftertreatment with a filter function, which is designed as a wall-flow filter,
- FIG. 1 shows a schematic representation of a wall-flow filter.
- the wall-flow filter consists of a housing 5 and a gas-permeable substrate disposed therein, in which channels are formed, which are alternately closed on the inlet and outlet side by plugs 2, 3, so that the exhaust gas stream 1 is forced through the walls of the channels.
- the Substrate is preferably made of ceramic and has in the usual design a pore size in the range between 10 and 20 ⁇ .
- the wall-flow filter has on the downstream surface of the substrate, a coating 4, which consists of at least one oxygen-storing material such as cerium dioxide Cer02 or which consists of a mixture of a cerium oxide with other catalytically active materials. No coating is shown on the upstream surface. This may also be present, but according to the invention, the amount of coating on the upstream surface of the substrate is lower than on the downstream side. Based on the figure below are possible errors of the facilities and your
- the oxygen-storing effect of the coating depends on the exhaust gas flow passing through the wall to the downstream side. Since the exhaust gas component flowing through the wall is also filtered, a good correlation of the
- FIG. 2 shows in two diagrams the profile of the lambda measured values (top) and in each case their first derivative (bottom) for an undamaged wall-flow filter which, according to the invention described on FIG. 1, has a coating on the downstream surface of the substrate made of an oxygen-storing material consists.
- the filter has no inflow
- the measuring signal corresponds to the lambda value, which is recorded with a so-called broadband probe, wherein the pumping current of the measuring cell of the broadband probe is mapped to the lambda value shown here.
- a dashed line shows the lambda desired value, which, as shown here by way of example, oscillates between a desired value of lambda equal to 0.95 and 1.05 with a sudden change.
- a fat-lean jump of the lambda setpoint which via a corresponding control of the
- Oxygen storage capacity of the coating is.
- the first derivative of the lambda value before the wall-flow filter (solid line) and the lambda measured value after the wall-flow filter (dotted line) are shown in each case. It can be seen that in each case after the time T1 and T2 a representable change of the gradient results due to the change of the lambda signals. In particular, the range between the respective sudden changes of the setpoint is interesting for the evaluation described below.
- the gradient profile determined here in each case shows an extreme value S directly at the times T1 and T2, which is excited by the abrupt change in setpoint value. Between these extreme values S occurs in the
- the curve of the lambda signal shown in dotted lines after the wall-flow filter shows a changed course with respect to FIG.
- a time-related tracking of the lambda value is formed for the case illustrated in FIG the wall-flow filter to the lambda value before the wall-flow filter.
- the lambda signal after the wall-flow filter shows, after a first following of the signal, a small plateau P in said region.
- the changes in the lambda curve after the wall-flow filter are correspondingly formed in the lower graph of the gradients.
- FIG. 4 diagrammatically shows the profile of the lambda measured values and their first derivative for a wall-flow filter damaged in the wall region.
- the curves are shown in the same form of representation as described for FIGS. 2 and 3. It can be seen that qualitatively results in a similar course of the lambda values and their first derivatives, as described previously to Figure 3. In different sizes, both the plateau P and the peaks A and the peak B occurring in the curve of the gradient of the lambda value after the filter can be seen. The different quantitative characteristics of the gradients are characteristic of the respective damage pattern.
- Embodiment has described the determination of the oxygen storage capacity.
- a method is described below, which uses the difference of the lambda values before and after the wall-flow filter. After the fat-lean jump of the lambda nominal value, the time is waited for at which the lambda value after the wall-flow filter exceeds the value 1. The gradient of the lambda value after the wall-flow filter is evaluated in terms of time. The first occurring local extreme value (peak A) is determined and, after the extreme value of the gradient curve, the difference between the lambda values before and after the time interval is determined
- Wall-flow filter is below the value 1.
- Lambda value after the wall-flow filter (peak A), the applicable delay time has expired.
- the lambda values before and after the wall-flow filter are used at this time to form the difference between them. If the difference exceeds a definable threshold value, then a damaged wall-flow filter is assumed. For a damaged wall-flow filter, the lambda difference in the region of the plateau P is evaluated. Turning the described method to a
- the result is a measurement time at which the lambda value after the wall-flow filter has already again approached the lambda value before the wall-flow filter.
- the lambda difference is thus smaller for an undamaged wall-flow filter in its amount.
- the threshold values and, if applicable, the applicable delay time can be determined, for example, on the basis of test runs on test benches.
- the described method of lambda difference can be compared with the above combined methods of evaluating the oxygen storage ability to improve the selectivity of the damage detection.
- undamaged wall-flow filter to detect a nearly S-shaped contour of the curve of the lambda value before and after the wall-flow filter.
- a peak A forms in the gradient of the lambda value before and after the wall-flow filter.
- the evaluation now takes place as to whether, after the occurrence of the peak A, a plateau-shaped course of the lambda value can be recognized after the wall-flow filter. This can be done on the basis of the value of the lambda value remaining constant over a period of time according to the wall-flow filter or it is observed whether another extreme value in the gradient curve (peak B) appears before the renewed setpoint step of the lambda setpoint.
- the occurrence of the second extreme value (peak B) as well as the plateau following the peak A are characteristic of a damaged wall-flow filter.
- Wall-flow filter applicable.
- a two-point sound provides only one peak (A) here due to the steep probe signal and the formation of a plateau is not assessable.
- the described method of lambda difference is also applicable when using a jumping probe before and after the wall-flow filter.
- the time point after the peak A of the gradient of the lambda value after the wall-flow filter is also used here, whereby the difference of the probe voltage is the value of
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Emergency Medicine (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112017003110.9T DE112017003110B4 (de) | 2016-06-23 | 2017-06-23 | Diagnoseverfahren für eine Einrichtung zur Abgasreinigung mit Filterfunktion |
US16/312,299 US20190331011A1 (en) | 2016-06-23 | 2017-06-23 | Exhaust-gas emission control system comprising a filter function and diagnostic method for said system |
JP2018567176A JP2019526007A (ja) | 2016-06-23 | 2017-06-23 | フィルタ機能を有する排ガスを浄化するための装置およびこの装置のための診断方法 |
CN201780038251.0A CN109312654B (zh) | 2016-06-23 | 2017-06-23 | 具有过滤功能的用于废气清洁的装置和该装置的诊断方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016111574.6A DE102016111574A1 (de) | 2016-06-23 | 2016-06-23 | Einrichtung zur Abgasreinigung mit Filterfunktion und Diagnoseverfahren für diese Einrichtung |
DE102016111574.6 | 2016-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2017220083A1 true WO2017220083A1 (de) | 2017-12-28 |
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PCT/DE2017/100532 WO2017220083A1 (de) | 2016-06-23 | 2017-06-23 | Einrichtung zur abgasreinigung mit filterfunktion und diagnoseverfahren für diese einrichtung |
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US (1) | US20190331011A1 (de) |
JP (1) | JP2019526007A (de) |
CN (1) | CN109312654B (de) |
DE (2) | DE102016111574A1 (de) |
WO (1) | WO2017220083A1 (de) |
Cited By (3)
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DE102018215629A1 (de) * | 2018-09-13 | 2020-03-19 | Continental Automotive Gmbh | Verfahren zur Funktionsdiagnose einer Abgasnachbehandlungsanlage einer Brennkraftmaschine und Abgasnachbehandlungsanlage |
DE102018215630A1 (de) * | 2018-09-13 | 2020-03-19 | Continental Automotive Gmbh | Verfahren zur Funktionsdiagnose einer Abgasnachbehandlungsanlage einer Brennkraftmaschine und Abgasnachbehandlungsanlage |
JP2021512791A (ja) * | 2018-02-05 | 2021-05-20 | ビーエーエスエフ コーポレーション | 改善されたフィルタ特性を有する四元変換触媒 |
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- 2017-06-23 CN CN201780038251.0A patent/CN109312654B/zh active Active
- 2017-06-23 JP JP2018567176A patent/JP2019526007A/ja active Pending
- 2017-06-23 DE DE112017003110.9T patent/DE112017003110B4/de active Active
- 2017-06-23 WO PCT/DE2017/100532 patent/WO2017220083A1/de active Application Filing
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Also Published As
Publication number | Publication date |
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JP2019526007A (ja) | 2019-09-12 |
DE112017003110A5 (de) | 2019-04-11 |
CN109312654A (zh) | 2019-02-05 |
DE112017003110B4 (de) | 2024-05-02 |
DE102016111574A1 (de) | 2017-12-28 |
US20190331011A1 (en) | 2019-10-31 |
CN109312654B (zh) | 2021-01-01 |
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