DK3844373T3 - System til sporing og notifikation af udstødningsstoffer - Google Patents
System til sporing og notifikation af udstødningsstofferInfo
- Publication number
- DK3844373T3 DK3844373T3 DK19854096.5T DK19854096T DK3844373T3 DK 3844373 T3 DK3844373 T3 DK 3844373T3 DK 19854096 T DK19854096 T DK 19854096T DK 3844373 T3 DK3844373 T3 DK 3844373T3
- Authority
- DK
- Denmark
- Prior art keywords
- notification system
- emissions tracking
- emissions
- tracking
- notification
- Prior art date
Links
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
- 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
-
- 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
-
- 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
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus 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
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/005—Electrical control of exhaust gas treating apparatus using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly
-
- 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
-
- 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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/02—Catalytic activity of catalytic converters
-
- 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
-
- 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
- F01N2900/0421—Methods of control or diagnosing using an increment counter when a predetermined event occurs
-
- 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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
-
- 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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
-
- 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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1411—Exhaust gas flow rate, e.g. mass flow rate or volumetric flow rate
-
- 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
- F01N2900/1602—Temperature of exhaust gas 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
- 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
- F01N2900/1606—Particle filter loading or soot amount
-
- 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
- F01N2900/1621—Catalyst conversion efficiency
-
- 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
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862725377P | 2018-08-31 | 2018-08-31 | |
| PCT/US2019/048883 WO2020047301A1 (en) | 2018-08-31 | 2019-08-29 | Exhaust species tracking and notification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK3844373T3 true DK3844373T3 (da) | 2026-07-20 |
Family
ID=69644698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK19854096.5T DK3844373T3 (da) | 2018-08-31 | 2019-08-29 | System til sporing og notifikation af udstødningsstoffer |
Country Status (4)
| Country | Link |
|---|---|
| US (3) | US11555436B2 (da) |
| EP (1) | EP3844373B1 (da) |
| DK (1) | DK3844373T3 (da) |
| WO (1) | WO2020047301A1 (da) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11879405B2 (en) * | 2021-07-23 | 2024-01-23 | Cummins Power Generation Inc. | Aftertreatment system loading tool |
| JP2023128620A (ja) * | 2022-03-04 | 2023-09-14 | コベルコ建機株式会社 | 作業機械、酸化触媒の劣化検知装置、酸化触媒の劣化検知方法、および、酸化触媒の劣化検知プログラム |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4323243A1 (de) * | 1993-07-12 | 1995-01-26 | Bosch Gmbh Robert | Bedarfsorientiertes Heizverfahren für einen Katalysator im Abgassystem einer Brennkraftmaschine |
| JPH11101172A (ja) * | 1997-09-26 | 1999-04-13 | Yamaha Motor Co Ltd | 船舶のエンジンの排気装置 |
| US6651422B1 (en) * | 1998-08-24 | 2003-11-25 | Legare Joseph E. | Catalyst efficiency detection and heating method using cyclic fuel control |
| DE59910605D1 (de) * | 1998-12-21 | 2004-10-28 | Siemens Ag | Verfahren zum erfassen von in wenigstens einer elektrischen einheit, insbesondere einer vermittlungstechnischen einrichtung, auftretenden fehlern |
| US6598387B2 (en) | 2000-12-21 | 2003-07-29 | Ford Global Technologies, Llc | Reduction of exhaust smoke emissions following extended diesel engine idling |
| JP4122849B2 (ja) * | 2001-06-22 | 2008-07-23 | 株式会社デンソー | 触媒劣化検出装置 |
| JP4042376B2 (ja) * | 2001-10-11 | 2008-02-06 | トヨタ自動車株式会社 | 内燃機関の触媒劣化検出装置 |
| US7251990B2 (en) * | 2005-03-04 | 2007-08-07 | Stmicroelectronics S.R.L. | Method and a relative device for diagnosing misfire or partial combustion conditions in an internal combustion engine |
| JP4214415B2 (ja) * | 2006-05-19 | 2009-01-28 | 三菱自動車工業株式会社 | 触媒温度推定装置 |
| US7788911B2 (en) | 2006-07-21 | 2010-09-07 | Cummins Filtration, Inc. | Adsorbed substance accumulation reduction for exhaust treatment equipment |
| US7500358B2 (en) | 2006-08-11 | 2009-03-10 | Fleetguard, Inc | Apparatus, system, and method for enhancing soot filter protection |
| US7533523B2 (en) * | 2006-11-07 | 2009-05-19 | Cummins, Inc. | Optimized desulfation trigger control for an adsorber |
| US7707826B2 (en) | 2006-11-07 | 2010-05-04 | Cummins, Inc. | System for controlling triggering of adsorber regeneration |
| US8171724B2 (en) * | 2007-05-02 | 2012-05-08 | Ford Global Technologies, Llc | Vehicle-based strategy for removing urea deposits from an SCR catalyst |
| US7572054B2 (en) * | 2007-07-19 | 2009-08-11 | Cummins Filtration Ip, Inc | Apparatus, system, and method for determining a time-temperature history of an aftertreatment device |
| US8051645B2 (en) * | 2007-12-18 | 2011-11-08 | Ford Global Technologies, Llc | Determination of diesel particulate filter load under both transient and steady state drive cycles |
| US8689542B2 (en) * | 2010-10-12 | 2014-04-08 | Cummins Inc. | Emissions reductions through reagent release control |
| US9043060B2 (en) * | 2010-12-31 | 2015-05-26 | Cummins Inc. | Methods, systems, and apparatuses for driveline load management |
| US20120191288A1 (en) * | 2011-01-21 | 2012-07-26 | GM Global Technology Operations LLC | On-board diagnostics system and method |
| KR20140091057A (ko) * | 2011-11-16 | 2014-07-18 | 맥 트럭스 인코포레이팃드 | 디젤 기관 어레인지먼트 및 바니시 강화 제어를 위한 방법 |
| US9091189B2 (en) * | 2012-07-13 | 2015-07-28 | Cummins Ip, Inc. | Method and system for mitigating urea deposits within an SCR catalyst system |
| US9038369B2 (en) | 2013-02-13 | 2015-05-26 | Cummins Inc. | Systems and methods for aftertreatment system diagnostics |
| US9261006B2 (en) * | 2013-03-01 | 2016-02-16 | Cummins Ip, Inc. | Apparatus, method and system for diagnosing reductant deposits in an exhaust aftertreatment system |
| US9255537B2 (en) * | 2013-03-15 | 2016-02-09 | GM Global Technology Operations LLC | Rejuvenation control of palladium-only diesel oxidation catalyst |
| KR101461326B1 (ko) * | 2013-06-28 | 2014-11-17 | 두산엔진주식회사 | 선택적 촉매 환원 시스템 |
| US9349224B2 (en) * | 2013-10-02 | 2016-05-24 | GM Global Technology Operations LLC | Systems and methods for vehicle status notification |
| US9638122B2 (en) * | 2013-12-20 | 2017-05-02 | Ford Global Technologies, Llc | Method to diagnose SCR catalyst |
| US9212587B2 (en) * | 2014-02-25 | 2015-12-15 | Cummins Inc. | Exhaust throttle control for aftertreatment system thermal management |
| US10443820B2 (en) | 2014-12-09 | 2019-10-15 | Current Lighting Solutions, Llc | Plastic LED fixture housing with outer frame |
| DE112016001487B4 (de) * | 2015-04-01 | 2025-12-24 | General Electric Company | Abgasrückführungssystem und -verfahren |
| CN105745408B (zh) * | 2015-11-25 | 2017-04-05 | 株式会社小松制作所 | 废气净化装置 |
| US20170328294A1 (en) * | 2016-05-10 | 2017-11-16 | Ford Global Technologies, Llc | Methods and systems for catalyst health monitoring |
| US10169931B2 (en) * | 2017-01-12 | 2019-01-01 | Donald Remboski | Service improvement by better incoming diagnosis data, problem specific training and technician feedback |
| US20180223756A1 (en) * | 2017-02-08 | 2018-08-09 | Caterpillar Inc. | Thermal management of aftertreatment systems |
-
2019
- 2019-08-29 DK DK19854096.5T patent/DK3844373T3/da active
- 2019-08-29 WO PCT/US2019/048883 patent/WO2020047301A1/en not_active Ceased
- 2019-08-29 EP EP19854096.5A patent/EP3844373B1/en active Active
-
2021
- 2021-02-25 US US17/184,881 patent/US11555436B2/en active Active
-
2023
- 2023-01-13 US US18/097,026 patent/US12168946B2/en active Active
-
2024
- 2024-11-21 US US18/955,400 patent/US20250084780A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20210183183A1 (en) | 2021-06-17 |
| US11555436B2 (en) | 2023-01-17 |
| EP3844373A1 (en) | 2021-07-07 |
| US20230141599A1 (en) | 2023-05-11 |
| EP3844373B1 (en) | 2026-05-06 |
| US20250084780A1 (en) | 2025-03-13 |
| US12168946B2 (en) | 2024-12-17 |
| WO2020047301A1 (en) | 2020-03-05 |
| EP3844373A4 (en) | 2022-04-20 |