EP3250802A1 - Verfahren zum bestimmen von grenzwerten für einen offset einer spannungs-lambda-kennlinie einer lambdasonde - Google Patents
Verfahren zum bestimmen von grenzwerten für einen offset einer spannungs-lambda-kennlinie einer lambdasondeInfo
- Publication number
- EP3250802A1 EP3250802A1 EP16703275.4A EP16703275A EP3250802A1 EP 3250802 A1 EP3250802 A1 EP 3250802A1 EP 16703275 A EP16703275 A EP 16703275A EP 3250802 A1 EP3250802 A1 EP 3250802A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- catalyst
- oxygen
- lambda
- lambda probe
- probe
- 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.)
- Withdrawn
Links
- 239000000523 sample Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 68
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 68
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000003054 catalyst Substances 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000003679 aging effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/0295—Control according to the amount of oxygen that is stored on the exhaust gas treating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1445—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being related to the exhaust flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2454—Learning of the air-fuel ratio control
-
- 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
- F02D2200/0814—Oxygen storage amount
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
- F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1493—Details
- F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2474—Characteristics of sensors
Definitions
- Sample gas chamber known. In principle, these can be any physical and / or chemical properties of the measurement gas, one or more properties being able to be detected.
- the invention will be described below in particular with reference to a qualitative and / or quantitative detection of a portion of a gas component of the measurement gas, in particular with reference to a detection of a
- Oxygen content in the sample gas part can be detected, for example, in the form of a partial pressure and / or in the form of a percentage. Alternatively or additionally, however, other properties of the sample gas part.
- Measuring gas detected such as the temperature.
- sensors based on ceramic sensor elements are known from the prior art, which are based on the use of electrolytic properties of certain solids, that is, on the ion-conducting properties of these solids.
- these solids may be ceramic solid electrolytes such as, for example
- Zirconia Zr0 2
- YSZ yttrium-stabilized zirconia
- ScSZ scandium-doped zirconia
- Alumina (Al 2 0 3 ) and / or silicon oxide (Si0 2 ) may contain.
- such sensors may be configured as so-called lambda probes, as known, for example, from Konrad Reif (ed.): Sensors in the Motor Vehicle, 1st Edition 2010, pp. 160-165.
- Broadband lambda probes in particular with planar broadband lambda probes, can for example be used to determine the oxygen concentration in the exhaust gas over a large range and thus to deduce the air / fuel ratio in the combustion chamber.
- the air ratio ⁇ describes this air / fuel ratio.
- lambda probes are used in modern internal combustion engines for determining the composition of the exhaust gas and for controlling the internal combustion engine.
- Oxygen sensors determine the oxygen content of the exhaust gas, which is used to control the air / fuel mixture supplied to the internal combustion engine and thus the exhaust lamella in front of a catalytic converter. In this case, the air and fuel supply via a lambda control loop
- Internal combustion engine can also be regulated to a lean operation with excess air.
- two-point lambda probe a continuous lambda control before catalyst possible, albeit in a limited lambda range.
- a two-point lambda probe as a jump probe or
- the exhaust duct is provided with a broadband lambda probe upstream or upstream of a catalytic converter, the
- Broadband lambda probe used in front of the catalyst for regulation. An even more accurate adjustment is possible with a guidance control based on a signal of the jump probe after the catalyst.
- an offset is determined based on the signal of the jump probe after the catalyst.
- a magnitude large offset is detected by the so-called on-board diagnosis as offset error of the broadband lambda probe in front of the catalyst, but also a small offset must be known to set by the first control a stoichiometric mixture as possible and thus to be able to ensure low emissions.
- the difficulty in determining the offset is due to the intervening catalyst and the fact that the jump probe after the
- the possibility of determining the offset can not always be used or can not be determined or the offset can be incorrectly adapted.
- the invention includes in particular those not exhaustively listed
- Catalyst wherein an upper limit based on a first assumption, resulting in a first value for a sum of oxygen discharge and oxygen storage level difference, and a lower limit based on a second assumption, resulting in a second value for a sum of oxygen discharge and oxygen storage level difference , the first value being greater than the second value.
- An amount of oxygen upstream of the catalyst is determined based on a lambda value of the first lambda probe and an exhaust gas mass flow, wherein a second amount of oxygen downstream of the
- first oxygen amount and the second oxygen amount are determined based on a first oxygen concentration upstream of the catalyst, a second oxygen concentration downstream of the catalyst, and an integration of the exhaust mass flow over a predetermined time.
- a computer program configured to perform each step of the method according to any one of the preceding aspects.
- An electronic storage medium on which a computer program according to the previous aspect is stored.
- Electronic control device comprising an electronic storage medium according to the previous aspect.
- This criterion is specified as the upper and lower limits for the offset.
- the offset can be determined as quickly as possible, as well as excessive adjustment or unlearning can be prevented.
- a basic idea of the present invention is the mathematical determination of the measurement signals of the lambda probes before and after
- FIG. 1 shows an internal combustion engine 10.
- the internal combustion engine 10 is, for example, a gasoline engine.
- the internal combustion engine 10 has a
- Exhaust duct 12 on.
- a first lambda probe 14, a catalyst 16 and a second lambda probe 18 are arranged in the exhaust passage 12.
- the exhaust gas produced during combustion in the combustion chamber of the internal combustion engine flows through first in a flow direction 20, first
- Lambda probe 18 Accordingly, the first lambda probe 14 is arranged upstream of the catalytic converter 16 or in front of the catalytic converter 16, and the second lambda probe 18 is located downstream of the catalytic converter 16 or downstream of the catalytic converter 16
- the first lambda probe 14 is a broadband lambda probe 22.
- the first lambda probe 14 is a spit probe.
- the second lambda probe 18 is a spit probe 24.
- the basic structure of the broadband lambda probe 22 and the jump probe 24 and their modes of operation are known from the prior art mentioned above and in particular from Konrad Reif (ed.):
- Internal combustion engine 10 supplied mixture of fuel and oxygen or air as closely as possible stoichiometrically adjusted.
- a first step will be to the broadband lambda probe 22 before the catalyst 16 used for control.
- An even more accurate adjustment is possible with a guidance control based on a signal of the jump probe 24 after the catalyst 16.
- a prerequisite for a precise lambda control of a lambda probe is that there is a clear relationship between the sensor voltage of the lambda probe and lambda. This relationship must be present over the entire life of the lambda probe, otherwise the accuracy of the control is not sufficient and unacceptably high emissions may occur. Due to manufacturing tolerances and aging effects of the lambda probe this condition is not met. Instead, the actual probe characteristic may be shifted by several superimposed effects compared to the reference probe characteristic. This shift is also referred to as offset.
- Catalyst 16 detected but also a small offset must be known in order to set by the first control a stoichiometric mixture as possible and thus to be able to ensure low emissions.
- the invention uses the basic assumption that the offset can be calculated from the following balance equation for the oxygen storage of the catalytic converter 16:
- the oxygen content in the exhaust gas can be calculated from the signals of the broadband lambda probe 22 and the jump probe 24.
- AOS is the difference in catalyst 16 oxygen storage level.
- the oxygen concentrations can be determined from the signals of the gases
- Broadband lambda probe 22 before the catalyst 16 and the jump probe 24 are determined after the catalyst: dt + AOS, where ⁇ ⁇ 1 ( s is the lambda value of the
- a vk is the offset of the broadband lambda probe 22 in front of the catalyst 16
- ⁇ is the lambda value of the jump probe 24 after the catalyst 16
- a vk is an actual, over the operating ranges constant offset, while the probes behind the catalyst is assumed as a reference and thus offset-free.
- a nk is not such an offset, but the inaccuracy in the detection of the lambda value at different operating points by non-systematic deviations.
- the calculation of A vk from the latter equation becomes possible by making assumptions for AOS and A nk .
- the assumptions include at least one initial assumption that is too large for the sum of
- Catalyst 16 is calculated from the lambda voltage characteristic of the jump probe 24 after the catalyst 16 based on the voltage signal provided by the jump probe 24.
- an upper limit and lower limit of the lambda voltage characteristic are defined.
- a fixed voltage uncertainty such as +/- 20 mV and a temperature variance such as +/- 30 K may be used.
- the oxygen storage capacity OSC can be assumed.
- a maximum of + OSC and minimum -OSC can be assumed. In certain states there are additional ones
- Information about the oxygen level and the values for AOS can be limited: For example, after a long overrun phase, the catalyst 16 is completely filled with oxygen. If integration then begins, the range for AOS is [0 ... -OSC]. It can be either a fixed value for the maximum OSC or one of
- the integration period can be set arbitrarily. It is favorably chosen such that the upper limit and the lower limit result in values which are as small or as large as possible. This results for a long time
- a vk (Kl - J / ftvk _s)) * ms dt - Kl - l / nk -A nk )) * ms + AOS) / Jms.
- the upper limit A vk max and the lower limit A vk _ min for the offset A vk result from the use of the upper limit and the lower limit for the lambda voltage characteristic of the jump probe 24 after the catalyst 16 ( nk -A nk ) and AOS. From several integration periods can become give different values. The lowest value for the upper limit and the largest value for the lower limit are used.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015201400.2A DE102015201400A1 (de) | 2015-01-28 | 2015-01-28 | Verfahren zum Bestimmen von Grenzen einer Bestimmung eines Offsets zumindest in einem Bereich einer Spannungs-Lambda-Kennlinie einer in einem Abgaskanal einer Brennkraftmaschine angeordneten ersten Lambdasonde gegenüber einer Referenz-Spannungs-Lambda-Kennlinie |
PCT/EP2016/051417 WO2016120190A1 (de) | 2015-01-28 | 2016-01-25 | Verfahren zum bestimmen von grenzwerten für einen offset einer spannungs-lambda-kennlinie einer lambdasonde |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3250802A1 true EP3250802A1 (de) | 2017-12-06 |
Family
ID=55310801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16703275.4A Withdrawn EP3250802A1 (de) | 2015-01-28 | 2016-01-25 | Verfahren zum bestimmen von grenzwerten für einen offset einer spannungs-lambda-kennlinie einer lambdasonde |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3250802A1 (de) |
CN (1) | CN107208565B (de) |
DE (1) | DE102015201400A1 (de) |
WO (1) | WO2016120190A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016220850B3 (de) | 2016-10-24 | 2017-10-26 | Audi Ag | Verfahren zum Betreiben einer Antriebseinrichtung sowie entsprechende Antriebseinrichtung |
DE102018216980A1 (de) * | 2018-10-04 | 2020-04-09 | Robert Bosch Gmbh | Verfahren zur Regelung einer Füllung eines Speichers eines Katalysators für eine Abgaskomponente in Abhängigkeit von einer Alterung des Katalysators |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4064092B2 (ja) * | 2001-11-13 | 2008-03-19 | 株式会社日立製作所 | エンジンの空燃比制御装置 |
DE10205817A1 (de) * | 2002-02-13 | 2003-08-14 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Regelung des Kraftstoff-/Luftverhältnisses eines Verbrennungsprozesses |
DE102006041479B4 (de) * | 2006-09-05 | 2023-03-30 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Sauerstoff-Speicherfähigkeit einer Abgasreinigungsanlage |
US7937209B2 (en) * | 2007-08-17 | 2011-05-03 | GM Global Technology Operations LLC | Air fuel ratio control system for internal combustion engines |
US7809490B2 (en) * | 2007-08-17 | 2010-10-05 | Gm Global Technology Operations, Inc. | Phase and frequency error based asymmetrical AFR pulse reference tracking algorithm using the pre-catalyst O2 sensor switching output |
JP5099261B2 (ja) * | 2009-05-21 | 2012-12-19 | トヨタ自動車株式会社 | 内燃機関の空燃比制御装置 |
US8346458B2 (en) * | 2009-10-01 | 2013-01-01 | GM Global Technology Operations LLC | Compensating for random catalyst behavior |
CN102650229B (zh) * | 2011-02-24 | 2013-10-30 | 上海通用汽车有限公司 | 三元催化器的氧存储能力检测方法和检测装置 |
JP5858276B2 (ja) * | 2011-10-07 | 2016-02-10 | 独立行政法人交通安全環境研究所 | 減速走行下における触媒劣化診断方法 |
DE102011085115B4 (de) * | 2011-10-24 | 2022-07-07 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Adaption einer Lambdaregelung |
US20130245919A1 (en) * | 2012-03-19 | 2013-09-19 | Ford Global Technologies, Llc | Low dimensional three way catalyst model for control and diagnostics |
DE102012019907B4 (de) * | 2012-10-11 | 2017-06-01 | Audi Ag | Verfahren zum Betreiben einer Brennkraftmaschine mit einer Abgasreinigungseinrichtung sowie entsprechende Brennkraftmaschine |
DE102013201734A1 (de) * | 2013-02-04 | 2014-08-07 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Lambdasondenanordnung im Abgassystem einer Brennkraftmaschine |
-
2015
- 2015-01-28 DE DE102015201400.2A patent/DE102015201400A1/de active Pending
-
2016
- 2016-01-25 CN CN201680007855.4A patent/CN107208565B/zh active Active
- 2016-01-25 WO PCT/EP2016/051417 patent/WO2016120190A1/de active Application Filing
- 2016-01-25 EP EP16703275.4A patent/EP3250802A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN107208565A (zh) | 2017-09-26 |
DE102015201400A1 (de) | 2016-07-28 |
WO2016120190A1 (de) | 2016-08-04 |
CN107208565B (zh) | 2020-12-18 |
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