WO2008080380A1 - Chaîne cinématique - Google Patents

Chaîne cinématique Download PDF

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Publication number
WO2008080380A1
WO2008080380A1 PCT/DE2007/002247 DE2007002247W WO2008080380A1 WO 2008080380 A1 WO2008080380 A1 WO 2008080380A1 DE 2007002247 W DE2007002247 W DE 2007002247W WO 2008080380 A1 WO2008080380 A1 WO 2008080380A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive train
train according
driven element
drive
state
Prior art date
Application number
PCT/DE2007/002247
Other languages
German (de)
English (en)
Inventor
Stephen John Jones
Bertrand Pennec
Andreas Walter
Thomas Winkler
Original Assignee
Luk Lamellen Und Kupplungsbau Beteiligungs Kg
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 Luk Lamellen Und Kupplungsbau Beteiligungs Kg filed Critical Luk Lamellen Und Kupplungsbau Beteiligungs Kg
Priority to DE112007003032.1T priority Critical patent/DE112007003032B4/de
Publication of WO2008080380A1 publication Critical patent/WO2008080380A1/fr

Links

Classifications

    • 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
    • F02D41/1497—With detection of the mechanical response of the engine
    • 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
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
    • 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
    • F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
    • F02D2041/1434—Inverse model
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1002—Output torque
    • F02D2200/1004—Estimation of the output torque

Definitions

  • a reciprocating piston engine with a crankshaft and also a rotary piston engine with a correspondingly designed drive shaft may be a drive unit.
  • the inventive embodiment applies to an electric motor with a drive shaft, which must be disturbed by a driven element and therefore must be readjusted by means of the state variable.
  • a driven element an element which receives a torque from the drive shaft or outputs a torque thereto.
  • this may be a dual-mass flywheel, which is connected on the one hand with a mass rotatably connected to the drive shaft and thus inelastically can absorb torque and on the other hand has an elastically coupled secondary mass, which in particular transmit a torque to the drive shaft in the dynamic operating condition and thus to a fault can lead the control of the drive unit.
  • such components may be formed by other elements in the drive train, such as torque converters, transmission components such as shafts or gears or hybrid electric machines.
  • a centrifugal force-dependent frictional contact during a relative rotation of the two parts each having a predeterminable mass with an inertia thus forming upon rotation, be generated by the fact that over a circumference extending springs, such as bow springs, taken from a part, for example, the secondary part and at its outer radius under centrifugal force against a radial support of the other part, for example, the primary part, pressed and thus form a centrifugal force dependent hysteresis in a relative rotation of the two parts under which the two parts are difficult to rotate against each other.
  • springs such as bow springs
  • Particularly advantageous may be a further method of linearization, by means of which an approximated linear model is used and a range of validity is established in which an error occurring does not exceed a predetermined limit.
  • the selection of such a model can be piece-specific.
  • models may be designed as "black-box models" that very well approximate the input and output behavior and do not require any prior physical knowledge of the kinematic processes
  • the modeling of a state space can be such that the kinematics of the
  • the subsequent identification then provides the desired compensation regardless of the model chosen, by choosing the variables of the state space such that there is an optimized match between the empirically or model-based data of a dual-mass flywheel and the input and output variables of the state space model is achieved.
  • the inventive idea relating to this exemplary embodiment provides only an evaluation based on the signals of the velocities ⁇ pri and ⁇ sec , so that the output vector y is given the following form:
  • the execution of the routine then leads to the parameters c, d, J prj , J S e k defined in equation (4), that is, the dual-mass flywheel with its real behavior is mapped onto the model, it is identified.
  • a subsequent validation of the underlying model can, for example, be carried out by calculating the model with given rotational irregularities and comparing it with a real behavior of a dual mass flywheel with the same rotational nonuniformities. At this point corrections can still be made to the model if there are major deviations.
  • a model of a driven element created in this way can now be stored in the control unit, and corresponding output variables can be introduced into the engine control.
  • an estimate of the primary or secondary speed of the respective flywheels by specifying Motor Inc. Load moments take place.
  • torques in a motor vehicle can only be measured with a comparatively high outlay, so that according to the inventive idea an inversion of the state space model is advantageous.
  • the input variables of the inverted system then represent the rotational speeds of the primary and secondary flywheel mass, while the output variables represent torque values of the engine or load torque values.
  • the combustion work of the cylinder i (W ⁇ as , ⁇ ) can be divided into a reference work (WQ aS ⁇ Ref ) and a working error the cylinder i (AW gas ⁇ ).
  • the reference work is identical for each cylinder. This gives you:
  • the reference work is calculated from the fuel energy supplied and thus results in too
  • the two rotational speeds n pr j, n S ⁇ k are input as input variables into the state space model and obtained according to the foregoing description, the induced reconstructed engine torque M M otor.
  • the applied rotation values are recorded and checked for stationarity; if there is insufficient stationarity, a new data record is recorded. If the condition for stationarity is fulfilled, the residual calculation is performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

Chaîne cinématique, notamment pour un véhicule automobile, avec une unité d'entraînement commandée au moyen d'un appareil de commande et pourvue d'un arbre d'entraînement, et avec un élément se trouvant en liaison fonctionnelle avec cet arbre et entraîné par celui-ci. Au moins une valeur d'état de l'élément entraîné est lue dans l'appareil de commande, et on effectue avec la valeur d'état au moins unique un équilibrage des cylindres de l'unité d'entraînement.
PCT/DE2007/002247 2007-01-05 2007-12-13 Chaîne cinématique WO2008080380A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007003032.1T DE112007003032B4 (de) 2007-01-05 2007-12-13 Antriebsstrang

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007001163 2007-01-05
DE102007001163.8 2007-01-05

Publications (1)

Publication Number Publication Date
WO2008080380A1 true WO2008080380A1 (fr) 2008-07-10

Family

ID=39222950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/002247 WO2008080380A1 (fr) 2007-01-05 2007-12-13 Chaîne cinématique

Country Status (2)

Country Link
DE (1) DE112007003032B4 (fr)
WO (1) WO2008080380A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015015538A1 (de) 2015-12-01 2016-08-11 Daimler Ag Verfahren zum Betrieb einer Verbrennungskraftmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021103250A1 (de) 2021-02-11 2022-08-11 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Reduktion von Schwingungsanregungen in einem Antriebsstrang eines Hybridfahrzeugs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843870A (en) * 1988-07-25 1989-07-04 Purdue Research Foundation Cylinder-by-cylinder engine pressure and pressure torque waveform determination utilizing crankshaft speed fluctuations
DE19741965C1 (de) * 1997-09-23 1999-01-21 Siemens Ag Verfahren zur Laufruheregelung
WO2000009877A1 (fr) * 1998-08-10 2000-02-24 Ab Volvo Procede de reduction des emissions d'un moteur a combustion interne lors du demarrage a froid
EP1065363A1 (fr) * 1999-07-02 2001-01-03 Renault Procédé de contrôle du couple d'un moteur à combustion interne
EP1070839A2 (fr) * 1999-07-21 2001-01-24 Nissan Motor Co., Ltd. Système de commande d'injection de carburant pour moteur Diesel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT755U1 (de) * 1995-06-22 1996-04-25 Avl Verbrennungskraft Messtech Verfahren und einrichtung zur diagnose mehrzylindriger brennkraftmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843870A (en) * 1988-07-25 1989-07-04 Purdue Research Foundation Cylinder-by-cylinder engine pressure and pressure torque waveform determination utilizing crankshaft speed fluctuations
DE19741965C1 (de) * 1997-09-23 1999-01-21 Siemens Ag Verfahren zur Laufruheregelung
WO2000009877A1 (fr) * 1998-08-10 2000-02-24 Ab Volvo Procede de reduction des emissions d'un moteur a combustion interne lors du demarrage a froid
EP1065363A1 (fr) * 1999-07-02 2001-01-03 Renault Procédé de contrôle du couple d'un moteur à combustion interne
EP1070839A2 (fr) * 1999-07-21 2001-01-24 Nissan Motor Co., Ltd. Système de commande d'injection de carburant pour moteur Diesel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015015538A1 (de) 2015-12-01 2016-08-11 Daimler Ag Verfahren zum Betrieb einer Verbrennungskraftmaschine

Also Published As

Publication number Publication date
DE112007003032A5 (de) 2009-09-10
DE112007003032B4 (de) 2019-12-12

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