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SE546697C2 - Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle - Google Patents

Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle

Info

Publication number
SE546697C2
SE546697C2 SE2350752A SE2350752A SE546697C2 SE 546697 C2 SE546697 C2 SE 546697C2 SE 2350752 A SE2350752 A SE 2350752A SE 2350752 A SE2350752 A SE 2350752A SE 546697 C2 SE546697 C2 SE 546697C2
Authority
SE
Sweden
Prior art keywords
liquid
supply
metering system
exhaust conduit
hydraulic metering
Prior art date
Application number
SE2350752A
Other languages
Swedish (sv)
Other versions
SE2350752A1 (en
Inventor
Hans Rietz
Per Bremberg
Original Assignee
Scania Cv Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE2350752A priority Critical patent/SE546697C2/en
Priority to PCT/SE2024/050581 priority patent/WO2024263080A1/en
Publication of SE2350752A1 publication Critical patent/SE2350752A1/en
Publication of SE546697C2 publication Critical patent/SE546697C2/en

Links

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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F01N2610/144—Control thereof
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1486—Means to prevent the substance from freezing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A method (100) of controlling operation of a hydraulic metering system (10) is disclosed, wherein the hydraulic metering system (10) is configured to supply a liquid into an exhaust conduit (12) of an engine (14). The hydraulic metering system (10) comprises a reservoir (16) configured to store the liquid, a supply path (11), a pump (13) configured to pump liquid from the reservoir (16) into the supply path (11), and a supply opening (15) configured to supply the liquid into the exhaust conduit (12) of the engine (14). The supply path (11) comprises a valve (17) controllable between an open state in which liquid is supplied from the supply path (11) through the supply opening (15) and a closed state in which liquid is blocked from flowing from the supply path (11) through the supply opening (15). The method (100) comprises the steps of obtaining (110) data indicative of freezing of liquid in the supply path (11), and performing (120) at least a first supply of a predetermined first amount of liquid into the exhaust conduit (12) via the supply opening (15) by controlling the valve (17) between the closed and open states if the data is indicative of freezing of liquid in the supply path (11). is disclosedThe present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), a hydraulic metering system (10), an engine (14), and a vehicle (2).

Claims (14)

  1. A method (100) of controlling operation of a hydraulic metering system (10), the hydraulic metering system (10) being configured to supply a liquid into an exhaust conduit (12) of an engine (14), wherein the system (10) comprises a reservoir (16) configured to store the liquid, a supply path (11), a pump (13) configured to pump liquid from the reservoir (16) into the supply path (11), and a supply opening (15) configured to supply the liquid into the exhaust conduit (12) of the engine (14), wherein the supply path (11) comprises a valve (17) controllable between an open state in which liquid is supplied from the supply path (11) through the supply opening (15) and a closed state in which liquid is blocked from flowing from the supply path (11) through the supply opening (15), .w «-;.\. v» tv; .W ~ .\.-\_- »WYM-mw' h* f .s .~,\.\.-\+“_. » ,.\_..._,. . _, ~==s :mä i: ,.~~\.= :s Q:~.===Q;;==\;:-\.~ <1: \.-\.==:=:Qs and wherein the method comprises the steps of: - obtaining (110) data indicative of freezing of liquid in the supply path, and - performing (120) at least a first supply of a first amount of liquid into the exhaust conduit (12) via the supply opening (15) by controlling the valve (17) between the closed and open states if the data is indicative of freezing of liquid in the supply path (1 1) wherein the first amount of liquid is predetermined, the method further comprising the step of: - setting (111) the predetermined first amount of liquid based on one or more of, a current operational condition of the engine (14), current physical properties prevailing in the exhaust conduit (12), current physical properties prevailing in the hydraulic metering system (10), and current ambient physical properties.
  2. 2. The method (100) according to claim 2, wherein the physical properties prevailing in the exhaust conduit (12) comprise one or more of the temperature in the exhaust conduit (12), the exhaust flow rate in the exhaust conduit (12), and the pressure in the exhaust conduit (12), and wherein the physical properties prevailing in the hydraulic metering system (10) comprises one or more of the pressure in the hydraulic metering system (10), the flow rate of liquid in the hydraulic metering system (10), and the temperature in the hydraulic metering system (10), and wherein the ambient physical properties comprises one or more of the ambient temperature, the ambient pressure, and the ambient humidity.
  3. 3. The method (100) according to any one of the preceding claims, wherein the method (100) further comprises the step of, after the step of performing (120) the at least first supply of the first amount of liquid: - performing (130) a number of second supplies of a second amount of liquid into the exhaust conduit (12) via the supply opening (15) by controlling the valve (17) between the closed and open states.
  4. The method (100) according to any one of the preceding claims, wherein the method (100) further comprises the step of, after the step of performing (120) the at least first supply of the first amount of liquid: - performing (131) a number of second supplies of a second amount of liquid into the exhaust conduit (12) required for reaching a pressure in the hydraulic metering system (10) below a first threshold pressure (P1).
  5. The method (100) according to any one of claims 3-4, wherein the method (100) comprises the step of: - setting (121) the second amount of liquid based on one or more of a current operational condition of the engine (14), current physical properties prevailing in the exhaust conduit (12), current physical properties prevailing in the hydraulic metering system (10), and current ambient physical properties.
  6. The method (100) according to claim 5, wherein the physical properties prevailing in the exhaust conduit (12) comprise one or more of the temperature in the exhaust conduit (12), the exhaust flow rate in the exhaust conduit (12), and the pressure in the exhaust conduit (12), and wherein the physical properties prevailing in the hydraulic metering system (10) comprises one or more of the pressure in the hydraulic metering system (10), the flow rate of liquid in the hydraulic metering system (10), and the temperature in the hydraulic metering system (10), and wherein the ambient physical properties comprises one or more of the ambient temperature, the ambient pressure, and the ambient humidity.
  7. The method (100) according to any one of the preceding claims , wherein the method (100) comprises the step of, prior to the step of performing (120) at least a first supply of a first amount of liquid into the exhaust conduit (12) via the supply opening (15): - de-activating (114) the pump (13).
  8. The method (100) according to any one of the preceding claims, wherein the method (100) comprises the step of: - performing (120) the first supply of the first amount of liquid based on a pressure in the hydraulic metering system (10) for obtaining a pressure in the hydraulic metering system (10) below a second threshold pressure (P2) when the first amount of liquid has been supplied to the exhaust conduit (12).
  9. 9. A computer program comprising instructions which, when the program is executed by a computer, cause the computer to carry out the method (100) according to any one of the claims 1 -
  10. 10. A computer-readable medium (200) comprising instructions which, when executed by a computer, cause the computer to carry out the method (100) according to any one of the claims 1 -
  11. 11. A control arrangement (21 ) for controlling the operation of a hydraulic metering system (10), the hydraulic metering system (10) being configured to supply a liquid into an exhaust conduit (12) of an engine (14), wherein the system comprises a reservoir (16) configured to store the liquid, a supply path (11), a pump (13) configured to pump liquid from the reservoir (16) into the supply path (11), and a supply opening (15) configured to supply the liquid into the exhaust conduit (12) of the engine (14), wherein the supply path (11) comprises a valve (17) controllable between an open state in which liquid is supplied from the supply path (11) through the supply opening (15) and a closed state in which liquid is blocked from flowing from the supply path (11) through the supply opening (15), wherein the control arrangement (21) is configured to: - obtain data indicative of freezing of liquid in the supply path (11), and - perform at least a first supply of a first amount of liquid into the exhaust conduit (12) via the supply opening (15) by controlling the valve (17) between the closed and open states if the data is indicative of freezing of liquid in the supply path (11), wherein the first amount of liquid is predetermined, wherein the control arrangement (21) is further configured to: - set the predetermined first amount of liquid based on one or more of, a current operational condition of the engine (14), current physical properties prevailing in the exhaust conduit (12), current physical properties prevailing in the hydraulic metering system (10), and current ambient physical properties.
  12. 12. A hydraulic metering system (10) configured to supply a liquid into an exhaust conduit (12) of an engine (14), wherein the system (10) comprises a reservoir (16) configured to store the liquid, a supply path (11), a pump (13) configured to pump liquid from the reservoir (16) into the supply path (11), and a supply opening (15) configured to supply the liquid into the exhaust conduit (12) of the engine (14), 5 wherein the supply path (11) comprises a valve (17) controllable between an open state in which liquid is supplied from the supply path (11) through the supply opening (15) and a closed state in which liquid is blocked from flowing from the supply path (11) through the supply opening (15), wherein the hydraulic metering system (11) comprises a control arrangement 10 according (21) to claim
  13. 13. An engine (14) comprising an exhaust conduit (12) and a hydraulic metering system (10) according to claim 12, wherein the hydraulic metering system (10) is configured to supply liquid into the exhaust conduit (12) of the engine (14).
  14. 14. A vehicle (20) comprising an engine (14) according to claim 13.
SE2350752A 2023-06-20 2023-06-20 Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle SE546697C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2350752A SE546697C2 (en) 2023-06-20 2023-06-20 Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle
PCT/SE2024/050581 WO2024263080A1 (en) 2023-06-20 2024-06-14 Method of controlling operation of a hydraulic metering system, computer program, computer-readable medium, control arrangement, hydraulic metering system, an engine, and a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2350752A SE546697C2 (en) 2023-06-20 2023-06-20 Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle

Publications (2)

Publication Number Publication Date
SE2350752A1 SE2350752A1 (en) 2024-12-21
SE546697C2 true SE546697C2 (en) 2025-02-11

Family

ID=93936121

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2350752A SE546697C2 (en) 2023-06-20 2023-06-20 Method of controlling operation of a hydraulic metering system, Computer Program, Computer-readable medium, Control Arrangement, Hydraulic Metering System, an Engine, and a Vehicle

Country Status (2)

Country Link
SE (1) SE546697C2 (en)
WO (1) WO2024263080A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070283685A1 (en) * 2004-11-10 2007-12-13 Wolfgang Ripper Metering System And Method For Operating A Metering System
DE102007047906A1 (en) * 2006-12-01 2008-06-05 Denso Corp., Kariya Exhaust gas emission control device i.e. selective catalytic reduction system, for e.g. diesel engine, has urea solution injecting valve opening based on freezing condition change to convey agent remaining in supplying circle into pipe
EP2685072A1 (en) * 2012-07-12 2014-01-15 Toyota Jidosha Kabushiki Kaisha Control device for internal combustion engine
DE102015208565A1 (en) * 2015-05-08 2016-11-10 Robert Bosch Gmbh Hydraulic conveying and dosing system and method for operating the hydraulic conveying and dosing system
WO2019053361A1 (en) * 2017-09-12 2019-03-21 Continental Automotive France Method for preventing a risk of freezing in a reducing-agent feeding device of a selective catalytic reduction system
CN212376725U (en) * 2020-05-29 2021-01-19 凯龙高科技股份有限公司 Hydraulic pressure stabilizing mechanism for urea pump
US20210033052A1 (en) * 2018-02-01 2021-02-04 Bayerische Motoren Werke Aktiengesellschaft Device and Method for Supplying Water Into a High-Pressure Fuel Pump of an Internal Combustion Engine Provided in a Motor Vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070283685A1 (en) * 2004-11-10 2007-12-13 Wolfgang Ripper Metering System And Method For Operating A Metering System
DE102007047906A1 (en) * 2006-12-01 2008-06-05 Denso Corp., Kariya Exhaust gas emission control device i.e. selective catalytic reduction system, for e.g. diesel engine, has urea solution injecting valve opening based on freezing condition change to convey agent remaining in supplying circle into pipe
EP2685072A1 (en) * 2012-07-12 2014-01-15 Toyota Jidosha Kabushiki Kaisha Control device for internal combustion engine
DE102015208565A1 (en) * 2015-05-08 2016-11-10 Robert Bosch Gmbh Hydraulic conveying and dosing system and method for operating the hydraulic conveying and dosing system
WO2019053361A1 (en) * 2017-09-12 2019-03-21 Continental Automotive France Method for preventing a risk of freezing in a reducing-agent feeding device of a selective catalytic reduction system
US20210033052A1 (en) * 2018-02-01 2021-02-04 Bayerische Motoren Werke Aktiengesellschaft Device and Method for Supplying Water Into a High-Pressure Fuel Pump of an Internal Combustion Engine Provided in a Motor Vehicle
CN212376725U (en) * 2020-05-29 2021-01-19 凯龙高科技股份有限公司 Hydraulic pressure stabilizing mechanism for urea pump

Also Published As

Publication number Publication date
WO2024263080A1 (en) 2024-12-26
SE2350752A1 (en) 2024-12-21

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