SE1751031A1 - Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices - Google Patents

Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices

Info

Publication number
SE1751031A1
SE1751031A1 SE1751031A SE1751031A SE1751031A1 SE 1751031 A1 SE1751031 A1 SE 1751031A1 SE 1751031 A SE1751031 A SE 1751031A SE 1751031 A SE1751031 A SE 1751031A SE 1751031 A1 SE1751031 A1 SE 1751031A1
Authority
SE
Sweden
Prior art keywords
combustion engine
cylinder
pressure
internal combustion
estimating
Prior art date
Application number
SE1751031A
Other versions
SE541125C2 (en
Inventor
Erik Höckerdal
Joakim Sommansson
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 SE1751031A priority Critical patent/SE541125C2/en
Priority to BR102018016989-0A priority patent/BR102018016989A2/en
Priority to DE102018006654.2A priority patent/DE102018006654B4/en
Publication of SE1751031A1 publication Critical patent/SE1751031A1/en
Publication of SE541125C2 publication Critical patent/SE541125C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • F02D35/024—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure using an estimation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/08—Testing internal-combustion engines by monitoring pressure in cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L2013/11—Sensors for variable valve timing
    • F01L2013/113—Sensors for variable valve timing crankshafts position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L2013/11—Sensors for variable valve timing
    • F01L2013/115—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/04—Sensors
    • F01L2820/043—Pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/09—Testing internal-combustion engines by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts

Abstract

A method (100) of estimating a pressure in at least one cylinder (3.1 - 3.6) of an internal combustion engine (1), is disclosed, wherein the method (100) comprises the steps of selectively opening (110) at least one valve (9) into at least one cylinder (3.1 - 3.6) of the internal combustion engine (1), by providing a fluid pressure (p) in a fluid chamber (13), measuring (120) the fluid pressure (p) in the fluid chamber (13), and estimating (130) the pressure in the at least one cylinder (3.1 - 3.6) based on the measured fluid pressure (p) in the fluid chamber (13). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (23), an internal combustion engine (1), and a vehicle (25) comprising an internal combustion engine (1).
SE1751031A 2017-08-29 2017-08-29 Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices SE541125C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1751031A SE541125C2 (en) 2017-08-29 2017-08-29 Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices
BR102018016989-0A BR102018016989A2 (en) 2017-08-29 2018-08-20 PRESSURE ESTIMATE METHOD ON A CYLINDER OF A COMBUSTION ENGINE, COMBUSTION ENGINE, AND RELATED DEVICES
DE102018006654.2A DE102018006654B4 (en) 2017-08-29 2018-08-22 Method for estimating pressure in a cylinder of an internal combustion engine, internal combustion engine and associated devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1751031A SE541125C2 (en) 2017-08-29 2017-08-29 Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices

Publications (2)

Publication Number Publication Date
SE1751031A1 true SE1751031A1 (en) 2019-03-01
SE541125C2 SE541125C2 (en) 2019-04-16

Family

ID=65321466

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1751031A SE541125C2 (en) 2017-08-29 2017-08-29 Method of Estimating Pressure in a Cylinder of a Combustion Engine, Combustion Engine, and related devices

Country Status (3)

Country Link
BR (1) BR102018016989A2 (en)
DE (1) DE102018006654B4 (en)
SE (1) SE541125C2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829397A (en) * 1995-08-08 1998-11-03 Diesel Engine Retarders, Inc. System and method for controlling the amount of lost motion between an engine valve and a valve actuation means
US20030213445A1 (en) * 2002-05-14 2003-11-20 Bloms Jason Kenneth System and method for monitoring engine valve actuation
GB2445761A (en) * 2007-01-22 2008-07-23 Lotus Car An internal combustion engine with in-cylinder pressure measurement system
US20100269575A1 (en) * 2009-04-24 2010-10-28 Gm Global Technology Operations, Inc. Diagnostic systems and methods for variable lift mechanisms of engine systems having a camshaft driven fuel pump
US20130245913A1 (en) * 2012-03-13 2013-09-19 GM Global Technology Operations LLC Cylinder pressure based pump control systems and methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015205297A1 (en) 2015-03-24 2016-09-29 Mahle International Gmbh Internal combustion engine
EP3184762B1 (en) 2015-12-22 2019-02-20 Scania CV AB A method for checking the function of a compression release brake system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829397A (en) * 1995-08-08 1998-11-03 Diesel Engine Retarders, Inc. System and method for controlling the amount of lost motion between an engine valve and a valve actuation means
US20030213445A1 (en) * 2002-05-14 2003-11-20 Bloms Jason Kenneth System and method for monitoring engine valve actuation
GB2445761A (en) * 2007-01-22 2008-07-23 Lotus Car An internal combustion engine with in-cylinder pressure measurement system
US20100269575A1 (en) * 2009-04-24 2010-10-28 Gm Global Technology Operations, Inc. Diagnostic systems and methods for variable lift mechanisms of engine systems having a camshaft driven fuel pump
US20130245913A1 (en) * 2012-03-13 2013-09-19 GM Global Technology Operations LLC Cylinder pressure based pump control systems and methods

Also Published As

Publication number Publication date
DE102018006654B4 (en) 2022-08-25
SE541125C2 (en) 2019-04-16
BR102018016989A2 (en) 2019-03-26
DE102018006654A1 (en) 2019-02-28

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