EP2017437A1 - Appareil de réglage de soupape - Google Patents

Appareil de réglage de soupape Download PDF

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Publication number
EP2017437A1
EP2017437A1 EP08160496A EP08160496A EP2017437A1 EP 2017437 A1 EP2017437 A1 EP 2017437A1 EP 08160496 A EP08160496 A EP 08160496A EP 08160496 A EP08160496 A EP 08160496A EP 2017437 A1 EP2017437 A1 EP 2017437A1
Authority
EP
European Patent Office
Prior art keywords
retarding
advancing
supply
chamber
valve timing
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Withdrawn
Application number
EP08160496A
Other languages
German (de)
English (en)
Inventor
Isao Hattori
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.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Publication of EP2017437A1 publication Critical patent/EP2017437A1/fr
Withdrawn legal-status Critical Current

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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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs

Definitions

  • a previously known valve timing adjuster includes a housing and a vane rotor.
  • the housing serves as a first rotatable body and is rotated together with a drive shaft
  • the vane rotor serves as a second rotatable body and is rotated together with a driven shaft.
  • advancing chambers and retarding chambers are arranged one after another in the rotational direction.
  • Each of the advancing chambers and the retarding chambers is formed between a corresponding one of shoes of the housing and a corresponding one of vanes of the vane rotor.
  • Working fluid is supplied to the advancing chambers or the retarding chambers to drive the driven shaft relative to the drive shaft in an advancing direction or a retarding direction to adjust the valve timing.
  • the phase of the driven shaft (hereinafter, referred to as an engine phase) relative to the drive shaft is set when the torques applied to the driven shaft are balanced.
  • these torques also include a rotational torque, which is generated by supply of the fluid to the advancing chambers and the retarding chambers, and an urging torque, which is generated in a case where a spring is provided to urge the driven shaft.
  • the engine phase can be limited within a target phase range to substantially hold the valve timing.
  • an average value (average torque) of the variable torque is balanced with the other torque (e.g., the urging torque) or becomes substantially zero (for example, in a case where a bearing friction of the driven shaft is substantially zero)
  • the supply of the fluid to both of the advancing chambers and the retarding chambers from the solenoid spool valve may be stopped to make the rotational torque applied to the driven shaft to zero.
  • the control circuit 36 controls the drive current supplied to the switch control valve 31 to a value larger than the reference value Ib.
  • the retarding passage 74 is communicated with the pump passage 75, and the advancing passage 73 is communicated with the drain passage 77.
  • the oil which is discharged from the oil pump 4 is supplied to the respective retarding chambers 55-58 through the pump passage 75 and the retarding passages 74, 72, 65-68.
  • the average variable torque Tca may possibly be balanced with the urging torque Ts of the assist spring 22, as indicated with a shaded circle in FIG. 8 . Therefore, in such a case, even when the drive current supplied to the switch control valve 31 is adjusted, this adjustment is made within the range lower than the reference value Ib. Thereby, the supply of the oil to the respective advancing chambers 51, 54 is maintained. As a result, the actual phase Pr reaches an advancing end of the target phase range ⁇ Pt, which is opposite from a bias of the average variable torque Tc.
  • the supply of the oil to the respective advancing chambers 51-54 may be intermittently performed in the advancing supply period. In other words, it is not necessary to maintain the supply of the oil to the respective advancing chambers 51-54 throughout each advancing supply period, and the supply of the oil to the respective advancing chambers 51-54 may be stopped before the end of the advancing supply period, if desired.
  • the supply of the oil to the retarding chambers 55-58 may be intermittently performed in the retarding supply period.
  • the alternately repeating supply operation when the actual phase Pr reaches the advancing end of the target phase range ⁇ Pt during the normal holding operation, the alternately repeating supply operation, which is similar to that of the first embodiment, may be started immediately from the beginning of the retarding supply period. Furthermore, in the second embodiment, when the actual phase Pr reaches the advancing end of the target phase range ⁇ Pt during the normal holding operation, and the pressure of the oil becomes equal to or less than the preset value S, the alternately repeating supply operation, which is similar to that of the first embodiment, may be started immediately from the beginning of the retarding supply period.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP08160496A 2007-07-19 2008-07-16 Appareil de réglage de soupape Withdrawn EP2017437A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007188730A JP2009024600A (ja) 2007-07-19 2007-07-19 バルブタイミング調整装置

Publications (1)

Publication Number Publication Date
EP2017437A1 true EP2017437A1 (fr) 2009-01-21

Family

ID=39989861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08160496A Withdrawn EP2017437A1 (fr) 2007-07-19 2008-07-16 Appareil de réglage de soupape

Country Status (4)

Country Link
US (1) US20090020085A1 (fr)
EP (1) EP2017437A1 (fr)
JP (1) JP2009024600A (fr)
KR (1) KR20090009140A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100258069A1 (en) * 2009-04-09 2010-10-14 Denso Corporation Valve timing control apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009162087A (ja) * 2007-12-28 2009-07-23 Mazda Motor Corp エンジンの可変バルブタイミング装置
JP5251685B2 (ja) * 2009-04-01 2013-07-31 トヨタ自動車株式会社 内燃機関の制御装置
KR101346978B1 (ko) * 2010-02-10 2014-01-02 도요타 지도샤（주） 내연 기관의 시동 제어 장치
EP2474713B1 (fr) * 2010-11-08 2015-07-22 Toyota Jidosha Kabushiki Kaisha Dispositif de commande d'un mecanisme hydraulique de distribution variable
US9341088B2 (en) * 2011-03-29 2016-05-17 GM Global Technology Operations LLC Camshaft phaser control systems and methods
JP5288061B2 (ja) 2011-04-07 2013-09-11 トヨタ自動車株式会社 バルブタイミング可変装置
EP2844850B1 (fr) * 2012-05-01 2017-07-26 DSM IP Assets B.V. Rotor pour système de temporisation de soupape variable et système vvt comprenant un tel rotor
JP6091115B2 (ja) * 2012-09-07 2017-03-08 日立オートモティブシステムズ株式会社 内燃機関のバルブタイミング制御装置及びその製造方法
DE102013222826A1 (de) * 2013-11-11 2015-05-13 Schaeffler Technologies AG & Co. KG Nockenwellenversteller

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844473A1 (de) * 1997-09-29 1999-04-08 Aisin Seiki Vorrichtung zur Steuerung von Ventilsteuerzeiten
US6332438B1 (en) * 1999-10-07 2001-12-25 Unisia Jecs Corporation Vane-type variable valve timing control apparatus and control method
US20020100445A1 (en) * 2001-01-31 2002-08-01 Akihiko Takenaka Valve timing adjusting system of internal combustion engine
US20020152977A1 (en) * 2001-03-22 2002-10-24 Katsuhiko Eguchi Valve timing control device
EP1365112A2 (fr) * 2002-05-21 2003-11-26 Delphi Technologies, Inc. Déphaseur d'arbre à cames avec ressort de rappel extérieur
DE10339669A1 (de) * 2002-08-28 2004-04-22 Aisin Seiki K.K., Kariya Ventilzeitabstimmungssteuerungsvorrichtung
US20050028773A1 (en) * 2003-08-08 2005-02-10 Hitachi Unisia Automotive, Ltd. Variable valve actuation apparatus for internal combustion engine
EP1533483A1 (fr) * 2003-11-19 2005-05-25 Toyota Jidosha Kabushiki Kaisha Unité de contrôle d'un système déphaseur pour moteur à combustion interne
DE10351223A1 (de) * 2003-10-28 2005-06-09 Hydraulik-Ring Gmbh Nockenwellenverstelleinrichtung für Fahrzeuge, vorzugsweise für Kraftfahrzeuge
EP1589197A2 (fr) * 2004-04-23 2005-10-26 Bayerische Motoren Werke Aktiengesellschaft Dispositif hydraulique pour la variation continue du calage d'arbre à cames
US20050252468A1 (en) * 2004-05-13 2005-11-17 Denso Corporation Valve timing control device having vane rotor
JP2006063835A (ja) 2004-08-25 2006-03-09 Denso Corp バルブタイミング調整装置
US20060060161A1 (en) * 2004-09-17 2006-03-23 Hitachi, Ltd. Valve timing control apparatus for internal combustion engine
US7063058B1 (en) * 2005-04-29 2006-06-20 Delphi Technologies, Inc. Camshaft phaser bias spring mechanism
EP1703087A1 (fr) * 2003-12-22 2006-09-20 Aisin Seiki Kabushiki Kaisha Dispositif de commande de temporisation d'ouverture / de fermeture de soupapes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004128B2 (en) * 2001-06-15 2006-02-28 Denso Corporation Control apparatus for device having dead band, and variable valve system

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844473A1 (de) * 1997-09-29 1999-04-08 Aisin Seiki Vorrichtung zur Steuerung von Ventilsteuerzeiten
US6332438B1 (en) * 1999-10-07 2001-12-25 Unisia Jecs Corporation Vane-type variable valve timing control apparatus and control method
US20020100445A1 (en) * 2001-01-31 2002-08-01 Akihiko Takenaka Valve timing adjusting system of internal combustion engine
US20020152977A1 (en) * 2001-03-22 2002-10-24 Katsuhiko Eguchi Valve timing control device
EP1365112A2 (fr) * 2002-05-21 2003-11-26 Delphi Technologies, Inc. Déphaseur d'arbre à cames avec ressort de rappel extérieur
DE10339669A1 (de) * 2002-08-28 2004-04-22 Aisin Seiki K.K., Kariya Ventilzeitabstimmungssteuerungsvorrichtung
US20050028773A1 (en) * 2003-08-08 2005-02-10 Hitachi Unisia Automotive, Ltd. Variable valve actuation apparatus for internal combustion engine
DE10351223A1 (de) * 2003-10-28 2005-06-09 Hydraulik-Ring Gmbh Nockenwellenverstelleinrichtung für Fahrzeuge, vorzugsweise für Kraftfahrzeuge
EP1533483A1 (fr) * 2003-11-19 2005-05-25 Toyota Jidosha Kabushiki Kaisha Unité de contrôle d'un système déphaseur pour moteur à combustion interne
EP1703087A1 (fr) * 2003-12-22 2006-09-20 Aisin Seiki Kabushiki Kaisha Dispositif de commande de temporisation d'ouverture / de fermeture de soupapes
EP1589197A2 (fr) * 2004-04-23 2005-10-26 Bayerische Motoren Werke Aktiengesellschaft Dispositif hydraulique pour la variation continue du calage d'arbre à cames
US20050252468A1 (en) * 2004-05-13 2005-11-17 Denso Corporation Valve timing control device having vane rotor
JP2006063835A (ja) 2004-08-25 2006-03-09 Denso Corp バルブタイミング調整装置
US20060060161A1 (en) * 2004-09-17 2006-03-23 Hitachi, Ltd. Valve timing control apparatus for internal combustion engine
US7063058B1 (en) * 2005-04-29 2006-06-20 Delphi Technologies, Inc. Camshaft phaser bias spring mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100258069A1 (en) * 2009-04-09 2010-10-14 Denso Corporation Valve timing control apparatus
US8327813B2 (en) * 2009-04-09 2012-12-11 Denso Corporation Valve timing control apparatus

Also Published As

Publication number Publication date
US20090020085A1 (en) 2009-01-22
KR20090009140A (ko) 2009-01-22
JP2009024600A (ja) 2009-02-05

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