GB2448686B - A System and method for adaptive control of variable vale lift tappet switching - Google Patents

A System and method for adaptive control of variable vale lift tappet switching

Info

Publication number
GB2448686B
GB2448686B GB0707784.5A GB0707784A GB2448686B GB 2448686 B GB2448686 B GB 2448686B GB 0707784 A GB0707784 A GB 0707784A GB 2448686 B GB2448686 B GB 2448686B
Authority
GB
United Kingdom
Prior art keywords
adaptive control
lift tappet
vale
variable
switching
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.)
Expired - Fee Related
Application number
GB0707784.5A
Other versions
GB0707784D0 (en
GB2448686A (en
Inventor
Themi Philemon Ptridis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to GB0707784.5A priority Critical patent/GB2448686B/en
Publication of GB0707784D0 publication Critical patent/GB0707784D0/en
Publication of GB2448686A publication Critical patent/GB2448686A/en
Application granted granted Critical
Publication of GB2448686B publication Critical patent/GB2448686B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem
    • 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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
    • 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
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • 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
    • F02D13/0261—Controlling the valve overlap
    • F02D13/0265—Negative valve overlap for temporarily storing residual gas in the cylinder
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
GB0707784.5A 2007-04-23 2007-04-23 A System and method for adaptive control of variable vale lift tappet switching Expired - Fee Related GB2448686B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0707784.5A GB2448686B (en) 2007-04-23 2007-04-23 A System and method for adaptive control of variable vale lift tappet switching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0707784.5A GB2448686B (en) 2007-04-23 2007-04-23 A System and method for adaptive control of variable vale lift tappet switching

Publications (3)

Publication Number Publication Date
GB0707784D0 GB0707784D0 (en) 2007-05-30
GB2448686A GB2448686A (en) 2008-10-29
GB2448686B true GB2448686B (en) 2012-02-22

Family

ID=38135245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0707784.5A Expired - Fee Related GB2448686B (en) 2007-04-23 2007-04-23 A System and method for adaptive control of variable vale lift tappet switching

Country Status (1)

Country Link
GB (1) GB2448686B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9506411B2 (en) * 2014-10-17 2016-11-29 Ford Global Technologies, Llc If method and system for engine knock control
CN114033524B (en) * 2021-11-09 2022-09-27 上海汽车集团股份有限公司 Two-stage variable valve lift control method and system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999042718A1 (en) * 1998-02-23 1999-08-26 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control
WO2000028198A1 (en) * 1998-10-26 2000-05-18 Ab Volvo Method of controlling the process of combustion in an internal combustion engine, and engine with means for varying the effective compression ratio of the cylinders
EP1138896A2 (en) * 2000-03-30 2001-10-04 Nissan Motor Company, Limited Auto-ignition of gasoline engine by varying exhaust gas retaining duration
EP1435445A1 (en) * 2002-12-30 2004-07-07 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Internal combustion engine, method for auto-ignition operation and computer readable storage device
US20040244732A1 (en) * 2003-06-03 2004-12-09 Aleksandar Kojic Method for extending HCCI load range using a two-stroke cycle and variable valve actuation
US20050252464A1 (en) * 2004-05-17 2005-11-17 Toyota Jidosha Kabushiki Kaisha Control device of charge compression ignition-type internal combustion engine
US20060272616A1 (en) * 2005-06-06 2006-12-07 Hiroshi Kuzuyama Homogeneous charge compression ignition internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999042718A1 (en) * 1998-02-23 1999-08-26 Cummins Engine Company, Inc. Premixed charge compression ignition engine with optimal combustion control
WO2000028198A1 (en) * 1998-10-26 2000-05-18 Ab Volvo Method of controlling the process of combustion in an internal combustion engine, and engine with means for varying the effective compression ratio of the cylinders
EP1138896A2 (en) * 2000-03-30 2001-10-04 Nissan Motor Company, Limited Auto-ignition of gasoline engine by varying exhaust gas retaining duration
EP1435445A1 (en) * 2002-12-30 2004-07-07 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Internal combustion engine, method for auto-ignition operation and computer readable storage device
US20040244732A1 (en) * 2003-06-03 2004-12-09 Aleksandar Kojic Method for extending HCCI load range using a two-stroke cycle and variable valve actuation
US20050252464A1 (en) * 2004-05-17 2005-11-17 Toyota Jidosha Kabushiki Kaisha Control device of charge compression ignition-type internal combustion engine
US20060272616A1 (en) * 2005-06-06 2006-12-07 Hiroshi Kuzuyama Homogeneous charge compression ignition internal combustion engine

Also Published As

Publication number Publication date
GB0707784D0 (en) 2007-05-30
GB2448686A (en) 2008-10-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130423