US20050229881A1 - Device for adjusting the phase position between the camshaft and the crankshaft - Google Patents

Device for adjusting the phase position between the camshaft and the crankshaft Download PDF

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Publication number
US20050229881A1
US20050229881A1 US11/156,904 US15690405A US2005229881A1 US 20050229881 A1 US20050229881 A1 US 20050229881A1 US 15690405 A US15690405 A US 15690405A US 2005229881 A1 US2005229881 A1 US 2005229881A1
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US
United States
Prior art keywords
camshaft
crankshaft
phase position
adjustment
control
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.)
Abandoned
Application number
US11/156,904
Other languages
English (en)
Inventor
Dirk Neubauer
Detlef Axmacher
Markus Wilke
Massimiliano Gasparro
Frank Pachan
Lars Pfutzenreuter
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.)
Schaeffler Engineering GmbH
Original Assignee
AFT Atlas Fahrzeugtechnik GmbH
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 AFT Atlas Fahrzeugtechnik GmbH filed Critical AFT Atlas Fahrzeugtechnik GmbH
Assigned to AFT ATLAS FAHRZEUGTECHNIK GMBH reassignment AFT ATLAS FAHRZEUGTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GASPARRO, MASSIMILIANO, PACHAN, FRANK, WILKE, MARKUS, AXMACHER, DETLEF, NEUBAUER, DIRK, PFUTZENREUTER, LARS
Publication of US20050229881A1 publication Critical patent/US20050229881A1/en
Abandoned 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
    • F01L1/352—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 bevel or epicyclic 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
    • F01L2201/00—Electronic control systems; Apparatus or methods therefor
    • 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
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1418—Several control loops, either as alternatives or simultaneous
    • F02D2041/1419—Several control loops, either as alternatives or simultaneous the control loops being cascaded, i.e. being placed in series or nested

Definitions

  • the invention relates to a device for adjusting the phase position between a camshaft and a crankshaft of an internal combustion engine.
  • the crankshaft drives one or more camshafts via a primary drive, provided, for example, as a toothed belt.
  • a camshaft timing gear is mounted to each camshaft, by which the primary drive drives the camshaft.
  • a transmission of the angle of rotation of the crankshaft occurs, in which a 720° angle of rotation of the crankshaft ⁇ K is transmitted into a 360° angle of rotation of the camshaft ⁇ N . Therefore, through this coupling the two angles of rotation are constant in reference to one another.
  • the operational characteristics of an internal combustion engine can be optimized, particularly with regard of fuel consumption, exhaust emission, and running performance, when the system of camshaft and crankshaft, coupled via the primary drive, can be modified.
  • DE 100 38 354 A1 discloses an arrangement for adjusting the angle of rotation of a camshaft relative to a crankshaft using a wobble plate mechanism.
  • a second drive additionally acts on the camshaft via a wobble plate mechanism, which is arranged between the camshaft phasing gear and the camshaft. This causes the camshaft to be adjustable relative to the crankshaft.
  • the objective of the invention is to provide a simple and cost effective adjustment device, by which the phase position between the camshaft and the crankshaft can be adjusted.
  • the adjustment device is a component of an electronic circuit automatically adjusting the desired phase position either directly or indirectly via another parameter, with the circuit comprising a control device and a control path having a structure specified for that application.
  • the advantage of the invention lies in the fact that such an adjustment device, having such an electronic circuit, can adjust very quickly and precisely the desired value in the control path.
  • the target value can be adjusted with the adjustment device even more quickly and more precisely by way of compensating variable disturbances, or by adjusting a cascading positioning or by way of a state control.
  • FIG. 1 is a schematic view of an adjustment device having a compensation for variable disturbances according to the invention.
  • FIG. 2 is a schematic view of an adjustment device having a cascading positioning adjustment in accordance with another embodiment of the invention.
  • FIG. 3 is a schematic view of an adjustment device having an optimized state control in accordance with another embodiment of the invention.
  • FIG. 1 shows an adjustment device provided with a positioning control 1 having a compensation for variable disturbances 2 .
  • the relative rotational speed of the electric motor is equivalent to the rotational speed of the sprocket or the belt pulley coupling the crankshaft with the camshaft, when the phase position remains unchanged.
  • the relative rotational speed of the electric motor is faster or slower than the speed of the sprocket depending on the direction of the adjustment.
  • the effect of the variable disturbance of the crank shaft rotational speed z is not collected only when it effects the control variable, but is already used for the pre-adjustment of the adjustment member 3 .
  • the rotational speed of the sprocket or the belt pulley can be determined from the rotational speed of the crankshaft.
  • the rotational speed z can be related to a corresponding self-inducting voltage y R at the electric motor.
  • the target value w in the exemplary embodiment the desired phase position, is entered into the control 4 .
  • the target value w acts on the electric motor of the adjustment member in the control path 3 , e.g., a wobble plate mechanism. This causes the rotational speed of the sprocket or the belt pulley to change, resulting in a modified phase position.
  • the actual value x of the phase position and/or the rotational speed of the sprocket or the belt pulley is fed back.
  • the returned actual value determines the new target value for the control. This new target value is then fed to the control.
  • the compensation for variable disturbances 2 is formed such that, additionally, from the rotational speed of the crankshaft z the self-induction voltage y z is determined as an additional adjustment parameter for the electric motor of the adjustment member, also determining the rotational speed of the electric motor.
  • FIG. 2 shows an adjustment device having a cascading positioning control.
  • the positioning control provided with a positioning return, is provided with a subordinate rotational speed control of the electric motor, which is provided with a feed back of the angular speed.
  • the rotational speed and/or the angular speed of the electric motor can be determined in the form of a measurement or can be calculated indirectly via the trigger information of the camshaft and the crankshaft.
  • the rotational speed control is cascaded by a control of the armature current, in which an additional compensation control can improve the dynamics.
  • the control of the armature current and/or the measurement of the armature current can also occur via a measurement of the torque of the electric motor driving the adjustment device.
  • a target rotation angle ⁇ s is given, describing the position and/or phase position between the camshaft and the crankshaft.
  • the rotational speed and/or the angular speed ⁇ s is given for the electric motor.
  • the angular speed itself is determined by the torque of the electric motor.
  • the torque M L and/or the corresponding current is measured and returned and here compared with the corresponding target value Ms.
  • FIG. 3 shows an adjustment device having a state control.
  • the dynamics of the control system are largely determined, because the conditions determining the dynamics directly enter the control. If the condition to be determined cannot be measured directly, it may be calculated by way of a state observer and/or a state equation.
  • a time controlled input value w(t) is entered in to a pre-filter 5 .
  • the pre-filter generates an output value u w (t) therefrom, which forms together with a value u r (t) created by a state control 6 an input value u(t) for the state differential equation 7.
  • the actual value x(t 0 ) at the time to is fed to the state differential equation 7.
  • the state differential equation 7 calculates the state x(t).
  • the state can be measured either directly or indirectly via a measuring device 8 , with the measurement being able to influence the state control 6 , which again influences the input value u(t) for the state differential equation 7.
  • control path 10 is formed by the state differential equation 7 and the output equation 9, which create the variable control.
  • the control device 11 controlling the variable control, is essentially formed by the measuring device 8 and the state control 6 .
  • the control device 11 also includes the pre-filter 5 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
US11/156,904 2002-12-18 2005-06-20 Device for adjusting the phase position between the camshaft and the crankshaft Abandoned US20050229881A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10259134A DE10259134A1 (de) 2002-12-18 2002-12-18 Vorrichtung zum Verstellen der Phasenlage zwischen Nockenwelle und Kurbelwelle
DE10259134.2 2002-12-18
PCT/DE2003/003620 WO2004057162A1 (de) 2002-12-18 2003-10-31 Vorrichtung zum verstellen der phasenlage zwischen nockenwelle und kurbelwelle

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/003620 Continuation WO2004057162A1 (de) 2002-12-18 2003-10-31 Vorrichtung zum verstellen der phasenlage zwischen nockenwelle und kurbelwelle

Publications (1)

Publication Number Publication Date
US20050229881A1 true US20050229881A1 (en) 2005-10-20

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ID=32519045

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/156,904 Abandoned US20050229881A1 (en) 2002-12-18 2005-06-20 Device for adjusting the phase position between the camshaft and the crankshaft

Country Status (4)

Country Link
US (1) US20050229881A1 (de)
EP (1) EP1573177B1 (de)
DE (2) DE10259134A1 (de)
WO (1) WO2004057162A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10352851A1 (de) 2003-11-10 2005-06-23 Aft Atlas Fahrzeugtechnik Gmbh Verdrehwinkelregelung
DE102005015856A1 (de) * 2004-12-24 2006-07-13 Daimlerchrysler Ag Verfahren und Einrichtung zum Einstellen einer elektrodynamischen Bremse eines elektrischen Nockenwellenverstellers für eine Nockenwelle einer Brennkraftmaschine
DE102014213253B4 (de) 2014-07-08 2017-12-28 Schaeffler Technologies AG & Co. KG Verfahren zum Betrieb eines Nockenwellenverstellers und Regelvorrichtung für einen Nockenwellenversteller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056477A (en) * 1989-09-09 1991-10-15 Robert Bosch Gmbh Apparatus for adjusting a rotational angular relationship between a camshaft and its drive element
US5184578A (en) * 1992-03-05 1993-02-09 Borg-Warner Automotive Transmission & Engine Components Corporation VCT system having robust closed loop control employing dual loop approach having hydraulic pilot stage with a PWM solenoid
US5218935A (en) * 1992-09-03 1993-06-15 Borg-Warner Automotive Transmission & Engine Components Corporation VCT system having closed loop control employing spool valve actuated by a stepper motor
US5289805A (en) * 1992-03-05 1994-03-01 Borg-Warner Automotive Transmission & Engine Components Corporation Self-calibrating variable camshaft timing system
US20020017257A1 (en) * 2000-08-05 2002-02-14 Detlef Axmacher Control unit for adjusting the angle of rotation of a camshaft
US6373614B1 (en) * 2000-08-31 2002-04-16 Cambridge Research Instrumentation Inc. High performance polarization controller and polarization sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122391A1 (de) * 1991-07-05 1993-01-07 Bosch Gmbh Robert Verfahren zum betrieb eines drehzahlregelbaren motors
JP3733600B2 (ja) * 1994-08-31 2006-01-11 株式会社デンソー エンジンの弁動作タイミング調整装置
DE59913140D1 (de) * 1998-09-09 2006-04-27 Kuka Roboter Gmbh Verfahren und Einrichtung zum Verbessern des dynamischen Verhaltens eines Roboters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056477A (en) * 1989-09-09 1991-10-15 Robert Bosch Gmbh Apparatus for adjusting a rotational angular relationship between a camshaft and its drive element
US5184578A (en) * 1992-03-05 1993-02-09 Borg-Warner Automotive Transmission & Engine Components Corporation VCT system having robust closed loop control employing dual loop approach having hydraulic pilot stage with a PWM solenoid
US5289805A (en) * 1992-03-05 1994-03-01 Borg-Warner Automotive Transmission & Engine Components Corporation Self-calibrating variable camshaft timing system
US5218935A (en) * 1992-09-03 1993-06-15 Borg-Warner Automotive Transmission & Engine Components Corporation VCT system having closed loop control employing spool valve actuated by a stepper motor
US20020017257A1 (en) * 2000-08-05 2002-02-14 Detlef Axmacher Control unit for adjusting the angle of rotation of a camshaft
US6373614B1 (en) * 2000-08-31 2002-04-16 Cambridge Research Instrumentation Inc. High performance polarization controller and polarization sensor

Also Published As

Publication number Publication date
WO2004057162A1 (de) 2004-07-08
EP1573177A1 (de) 2005-09-14
DE10259134A1 (de) 2004-07-15
EP1573177B1 (de) 2006-09-13
DE50305071D1 (de) 2006-10-26

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AS Assignment

Owner name: AFT ATLAS FAHRZEUGTECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NEUBAUER, DIRK;AXMACHER, DETLEF;WILKE, MARKUS;AND OTHERS;REEL/FRAME:016717/0804;SIGNING DATES FROM 20050523 TO 20050608

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION