EP0162203A2 - Procédé et dispositif d'adaptation du comportement de la caractéristique d'une tige d'actionnement - Google Patents

Procédé et dispositif d'adaptation du comportement de la caractéristique d'une tige d'actionnement Download PDF

Info

Publication number
EP0162203A2
EP0162203A2 EP85102283A EP85102283A EP0162203A2 EP 0162203 A2 EP0162203 A2 EP 0162203A2 EP 85102283 A EP85102283 A EP 85102283A EP 85102283 A EP85102283 A EP 85102283A EP 0162203 A2 EP0162203 A2 EP 0162203A2
Authority
EP
European Patent Office
Prior art keywords
slope
offset
adaptation
integrator
actuator
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.)
Granted
Application number
EP85102283A
Other languages
German (de)
English (en)
Other versions
EP0162203B1 (fr
EP0162203A3 (en
Inventor
Cornelius Dipl.-Ing. Peter
Claus Dipl.-Ing. Ruppmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT85102283T priority Critical patent/ATE49458T1/de
Publication of EP0162203A2 publication Critical patent/EP0162203A2/fr
Publication of EP0162203A3 publication Critical patent/EP0162203A3/de
Application granted granted Critical
Publication of EP0162203B1 publication Critical patent/EP0162203B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • 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

Definitions

  • the invention is based on a method and a device according to the type of the main claim and the first device claim.
  • a variable which is usually electrical and has a specific function profile, is supplied to any actuator by a controller that processes and also inputs certain signals from the controller path incorporates the result achieved by adjusting the actuator into its control behavior.
  • the invention is fundamentally suitable in its application for adapting any actuator characteristic curves, will be referred to but a preferred training EADERSHIP example applied to the actuator behavior in the idling filling control (LFR) for a B racing engine and explained in more detail, since here also gives a preferred field of application for the present invention.
  • LFR idling filling control
  • an idle speed controller is supplied with certain information about the current operating state of the internal combustion engine, for example pressure in the intake manifold, actual speed, a desired target speed for idling and other, peripherally usable operating status information , such as throttle valve position, position of a bypass valve at which the idle charge control system in particular acts and / or, also instead of the pressure in the intake pipe, information about the amount of air or air mass sucked in.
  • the idle speed controller can use an electrical manipulated variable as a setpoint, for example an air volume signal Q setpoint or an air mass signal m setpoint and feed it to an idle actuator (L L actuator), which converts the air mass setpoint, for example, into an opening cross section (of the valve in the bypass already mentioned above).
  • an electrical manipulated variable as a setpoint, for example an air volume signal Q setpoint or an air mass signal m setpoint and feed it to an idle actuator (L L actuator), which converts the air mass setpoint, for example, into an opening cross section (of the valve in the bypass already mentioned above).
  • Idle actuators usually work to adjust the cross opening Section, via which the internal combustion engine is supplied with the required amount of air, as an electromagnetic converter and can in this case be designed as a winding rotary actuator (EWD) or as a magnetic part for valve actuation.
  • EWD winding rotary actuator
  • the idle controller When the idle controller is cold, the actuator winding takes up a larger current at a given duty cycle; there is a larger deflection and a corresponding mismatch. Similar negative relationships result from considerable battery voltage fluctuations, as is very common in internal combustion engines. Therefore, in order to have the least possible mismatch in the actuator area, the idle actuator, in order to correctly carry out the conversion of the electrical manipulated variable supplied to it into the opening cross-section, must be constructed in a complex manner and have a characteristic that is as reproducible as possible.
  • One of the objects of the present invention is therefore to provide a device for adapting an actuator characteristic curve which fulfills the condition that the actuation setpoint supplied to the actuator is substantially the same as the actual size resulting from the action of the actuator including peripheral influences on the idle speed controller with an idle speed control curve so that the air Quantity or air mass setpoint at the output of the idle speed controller is substantially the same as the air quantity or air mass supplied to or sucked into the internal combustion engine.
  • the method according to the invention with the characterizing features of the main claim and the device according to the invention with the characterizing features of the first device claim have the advantage, in contrast, that the adaptation to the (possibly changing under certain influencing variables) characteristic of the actuator as well as the inclusion and, to that extent, regulation of others Disturbances occur in such a way that there is an effective independence from the actuator characteristic curve, so that it is no longer necessary to construct the actuator used in each case, applied to the idle charge control, that is to say the idle actuator, in a particularly complex manner.
  • the invention makes it possible to work with simpler actuator designs, with air mass measurement being completely independent of the height at which the internal combustion engine is located and the air quantity measurement being drastically reduced as a function of height.
  • the invention also ensures independence from the leakage air, so that engine settings are no longer required and, moreover, the inventive adaptation, which takes place during the entire control operation, does not influence the actual idle charge control.
  • the offset integrator always runs, that is, it is enabled when the throttle valve is closed, the gradient integrator is not running and a predetermined blocking time. has expired.
  • the slope integrator is only meaningfully enabled if the current actual air volume is greater than the value stored when the throttle valve is opened, plus a definable air volume.
  • FIG. 1 shows in the form of a block diagram an idle charge control with idle speed controller and the idle speed controller controlled by this and an intermediate characteristic adaptation block interposed in accordance with a feature of the present invention
  • FIG. 2 also predominantly in the form of a block diagram the device for characteristic curve adaptation in greater detail
  • FIG. 3 in the form of a diagram, the actuator characteristic air quantity or air mass over the electrical manipulated variable T and the effects of the adaptation according to the invention on the course of the characteristic curve.
  • the adaptation to the characteristic curve of the idle controller that is then available at the respective time and the leakage air take place according to a specific strategy, which has the aim of an additive and / or multiplicative intervention in the setpoint output by the (idle speed) controller.
  • a specific strategy which has the aim of an additive and / or multiplicative intervention in the setpoint output by the (idle speed) controller.
  • the idle speed controller is designated 10 and the actuator controlled by it via the system for adapting the characteristic curve 11 is designated as the idle controller 12.
  • the idle actuator affects the opening cross-section in the intake manifold. an internal combustion engine 13, in particular by correspondingly enlarging or reducing a bypass cross section or by motorized adjustment of the throttle valve.
  • the air that the internal combustion engine 13 ultimately receives is composed of the air through the actuator or the air that the actuator passes through due to its actuation, and a residual air leakage, for example, flowing through the throttle valve.
  • the characteristic curve adaptation according to the invention in block 11 converts the target air quantity Q target or m target output by the idle speed controller 10 into an electrical manipulated variable T such that an air quantity (or air mass) is set with the idle actuator 12, which together with the leakage air produces the desired intake air quantity Q actual (or air mass m actual ) results.
  • the adaptation takes place slowly after checking the operating status.
  • the block 11 - adaptation and adjuster - represents a proportional element with amplification 1 and thus has no influence on the stability.
  • two integrators II are provided for the characteristic curve offset or the base point shift of the characteristic curve and 12 for the characteristic curve slope, the respective integrators only running if the intervention in the characteristic curve adaptation caused by them can be released by certain operating conditions; therefore, each integrator is assigned release elements, the offset integrator I1 an enable element FG1 and the slope integrator 12 an enable element FG2.
  • the slope integrator 12 intervenes on the setpoint output by the idle speed controller 10 in a multiplicative manner via a multiplier M with a predetermined multiplication factor, while the offset correction from the output of the integrator I1 takes place additively at a summation point 51.
  • Both integrators I1 and I2 are supplied with an air quantity difference signal ⁇ Q from a second summation or comparison point S2, which corresponds to the deviation of the setpoint (setpoint air quantity Q setpoint or setpoint air mass se setpoint ) from the actual size (air quantity Q actual or air mass n actual ) .
  • the specification QIst can be derived from an air flow meter in the intake pipe or can be obtained in another known manner.
  • the desired relationship Q actual Q target (or also based on the air mass, which will not be repeated in the following) can therefore be achieved by changing two parameters, namely by varying the offset K1 and by varying the gradient K2.
  • the integrators I1 and I2 are each followed by summation points S3 and S4, to which initial values K10 for the offset and K20 for the slope are supplied.
  • this integrator For the intervention by the integrator I2, which affects a change in the characteristic curve (change in gradient) and therefore has a significantly greater effect on the electrical output manipulated variable T as an input signal for the idle actuator, this integrator is only released if the throttle valve has a predetermined period of time T2, the for example
  • the operating point is then shifted by offset, as indicated by arrow A; it is obvious that the second step of the multiplicative slope intervention (arrow B) must not be carried out in a working point which is below the offset working point, since in this case there is an inverse, i.e. undesirable effect.
  • the slope adaptation always takes place in working points above the offset working point.
  • the conditions for the release block FG2 of the slope integrator 12 are additionally designed such that the slope is only adapted for air flow rates that are greater than, for example, a minimum air flow rate, such as results for the clear idle case.
  • the procedure for obtaining these conditions that the current Q set at the moment of opening of the throttle valve - or m is to be stored values, including a memory block SB is provided to which a throttling kl appe n sig nal DK and Q Target value is supplied; this storage then corresponds to the latter operating point, at which the offset integrator 11 has adapted.
  • the slope adaptation it is then checked in each case whether the now requested air volume value (Q target ; m SOll ) is greater than the value last saved and only then can the release be carried out; the block comparing the two setpoints is shown in FIG VG designated.
  • This condition may alternatively be replaced by the consideration that a slope adaptation can always be enabled when the instantaneous D deer number is above a certain speed, so for example, the following condition is satisfied n> n LL + 500 min -1 , because it can be assumed that at higher speeds, an operating point on the characteristic curve is also taken, which lies above the idling point, so that one is on the correct characteristic curve section. Such a case of increased speed occurs, for example, after a gas surge or in overrun. However, it must be mentioned that this consideration should only apply in the alternative and that the storage of the setpoints is an absolute advantage before the throttle valve is opened.
  • a further summation point S4 is provided, at which an air quantity Q O is subtracted from the target quantity Q Soll .
  • This measure serves to optimize the work area.
  • the value of Q O should not be greater than the minimum desired air quantity Q Soll ', so that the quantity reaching the multiplier M after the summation point S4 is preferably always greater than 0.
  • This addition with a negative value of Q O makes it possible to set the pivot point of the curve or characteristic as close as possible to the working point. If one assumes a desirable ideal case in which the supplied Q O value lies exactly on the working point, then ge lingt it namely to adapt with just only one iteration, namely once offset adjustment and once Gradient setting curve and d ar - see. But even if the pivot point is lower due to the deviation of the Q O value from the direct working point, you can manage with fewer iteration steps overall.
  • an additional function circuit block SB is provided in accordance with FIG. 2, which can also take over the functions of the two integrators which lock each other and the input signals from the output of the memory block SB (via the comparator VG) with respect to the value Q s p stored when the throttle valve was last opened and the output signals of the two integrators and / or the enable circuits assigned to them.
  • the function block then preferably acts on the release circuits with corresponding output signals and thereby ensures that, according to the measures mentioned above, the offset generator is always released via its release element FG1 if this corresponds to the above-mentioned condition, with additionally required input signals still being supplied be and is also the slope integrator enabled only when the current Q is greater value, but at least is equal to the opening of the throttle valve stored value and a definable amount of air, because by the slope adaptation, a relatively strong engagement results quickly to the ceremoniestellgröBe, who only approved can be used if the condition mentioned is fulfilled.
  • the function block FB is designed in such a way that it interlocks the releases of the offset integrator and the slope integrator, so that it is prevented that changes in the slope are strongly adapted without the base point or pivot point of the characteristic curve being intermittently adjusted due to an offset adaptation undergoes an adjustment. It has already been pointed out above that the invention is particularly suitable for implementation using computer circuits, microprocessors, small computers and the like. The like. Suitable, whereby in particular the last-mentioned measures represent conditions that can be easily specified and processed through appropriate program design when using a microprocessor or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Feedback Control In General (AREA)
  • Electrotherapy Devices (AREA)
  • Radio Transmission System (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Chairs Characterized By Structure (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Glass Compositions (AREA)
  • Fluid-Damping Devices (AREA)
EP85102283A 1984-04-21 1985-03-01 Procédé et dispositif d'adaptation du comportement de la caractéristique d'une tige d'actionnement Expired - Lifetime EP0162203B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102283T ATE49458T1 (de) 1984-04-21 1985-03-01 Verfahren und vorrichtung zur adaption eines stellglied-kennlinienverlaufs.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843415183 DE3415183A1 (de) 1984-04-21 1984-04-21 Verfahren und vorrichtung zur adaption eines stellglied-kennlinienverlaufs
DE3415183 1984-04-21

Publications (3)

Publication Number Publication Date
EP0162203A2 true EP0162203A2 (fr) 1985-11-27
EP0162203A3 EP0162203A3 (en) 1988-01-07
EP0162203B1 EP0162203B1 (fr) 1990-01-10

Family

ID=6234216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102283A Expired - Lifetime EP0162203B1 (fr) 1984-04-21 1985-03-01 Procédé et dispositif d'adaptation du comportement de la caractéristique d'une tige d'actionnement

Country Status (5)

Country Link
EP (1) EP0162203B1 (fr)
JP (1) JPS60224950A (fr)
AT (1) ATE49458T1 (fr)
AU (1) AU577843B2 (fr)
DE (2) DE3415183A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250873A2 (fr) * 1986-06-27 1988-01-07 Hella KG Hueck & Co. Dispositif pour ajuster la vitesse de déplacement d'un véhicule automobile
GB2199428A (en) * 1986-11-24 1988-07-06 Mitsubishi Electric Corp Rpm control device for internal combustion engine
EP0190268B1 (fr) * 1984-08-09 1988-10-05 Robert Bosch Gmbh Procede et dispositif pour regler le nombre de tours en marche a vide d'un moteur a combustion interne
WO1992005354A1 (fr) * 1990-09-18 1992-04-02 Robert Bosch Gmbh Procede et dispositif pour la commande et/ou la regulation d'une grandeur caracteristique d'un moteur a combustion interne

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439927A1 (de) * 1984-06-30 1986-01-09 Bosch Gmbh Robert Verfahren und vorrichtung zur adaptiven stoergroessenaufschaltung bei reglern
JP2553162Y2 (ja) * 1986-06-27 1997-11-05 日産自動車株式会社 能動型サスペンシヨン
DE3744222A1 (de) * 1987-12-24 1989-07-06 Bosch Gmbh Robert Verfahren und einrichtung zur beeinflussung der luftzumessung bei einer brennkraftmaschine, insbesondere im leerlauf und schubbetrieb
JP2559480B2 (ja) * 1988-11-07 1996-12-04 株式会社日立製作所 電子式弁開度制御装置
DE3926031C1 (en) * 1989-08-07 1990-11-29 Robert Bosch Gmbh, 7000 Stuttgart, De Adapting characteristic working of adjuster - limiting signal affecting base point of characteristic curve to predetermined min. value
WO1993000507A1 (fr) * 1991-06-26 1993-01-07 Nippondenso Co., Ltd. Systeme anti-patinage a l'acceleration pour vehicules a moteur
JP2762350B2 (ja) * 1995-06-23 1998-06-04 株式会社ゼクセル ディーゼルエンジンのアイドル回転制御装置及び方法
DE10217596B4 (de) * 2001-04-20 2006-07-13 Honda Giken Kogyo K.K. Regelsystem für eine Drosselventil-Aktuatorvorrichtung
JP4450228B2 (ja) * 2005-10-28 2010-04-14 株式会社デンソー エンジン制御装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237838A (en) * 1978-01-19 1980-12-09 Nippondenso Co., Ltd. Engine air intake control system
GB2084353A (en) * 1980-09-25 1982-04-07 Bosch Gmbh Robert Automatic control of the air-fuel ratio in ic engines
GB2109953A (en) * 1981-11-23 1983-06-08 Ford Motor Co Adaptive control of air fuel ratio
DE3238189A1 (de) * 1982-10-15 1984-04-19 Robert Bosch Gmbh, 7000 Stuttgart Leerlauf-regelsystem fuer eine brennkraftmaschine
JPS59185840A (ja) * 1983-04-07 1984-10-22 Mitsubishi Motors Corp エンジンの制御装置
EP0136449A2 (fr) * 1983-09-21 1985-04-10 Robert Bosch Gmbh Procédé et dispositif d'adaptation de courbes de réglage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108127A (en) * 1977-04-01 1978-08-22 Autotronic Controls, Corp. Modulated throttle bypass

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237838A (en) * 1978-01-19 1980-12-09 Nippondenso Co., Ltd. Engine air intake control system
GB2084353A (en) * 1980-09-25 1982-04-07 Bosch Gmbh Robert Automatic control of the air-fuel ratio in ic engines
GB2109953A (en) * 1981-11-23 1983-06-08 Ford Motor Co Adaptive control of air fuel ratio
DE3238189A1 (de) * 1982-10-15 1984-04-19 Robert Bosch Gmbh, 7000 Stuttgart Leerlauf-regelsystem fuer eine brennkraftmaschine
JPS59185840A (ja) * 1983-04-07 1984-10-22 Mitsubishi Motors Corp エンジンの制御装置
EP0136449A2 (fr) * 1983-09-21 1985-04-10 Robert Bosch Gmbh Procédé et dispositif d'adaptation de courbes de réglage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 46 (M-360)[1769], 27. Februar 1985; & JP-A-59 185 840 (MITSUBISHI JIDOSHA KOGYO K.K.) 22-10-1084 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190268B1 (fr) * 1984-08-09 1988-10-05 Robert Bosch Gmbh Procede et dispositif pour regler le nombre de tours en marche a vide d'un moteur a combustion interne
EP0250873A2 (fr) * 1986-06-27 1988-01-07 Hella KG Hueck & Co. Dispositif pour ajuster la vitesse de déplacement d'un véhicule automobile
EP0250873A3 (en) * 1986-06-27 1988-11-09 Hella Kg Hueck & Co. Automotive vehicle driving speed adjustment device
GB2199428A (en) * 1986-11-24 1988-07-06 Mitsubishi Electric Corp Rpm control device for internal combustion engine
GB2199428B (en) * 1986-11-24 1990-10-10 Mitsubishi Electric Corp Rpm control device for internal combustion engine
WO1992005354A1 (fr) * 1990-09-18 1992-04-02 Robert Bosch Gmbh Procede et dispositif pour la commande et/ou la regulation d'une grandeur caracteristique d'un moteur a combustion interne

Also Published As

Publication number Publication date
JPS60224950A (ja) 1985-11-09
EP0162203B1 (fr) 1990-01-10
JPH0574698B2 (fr) 1993-10-19
ATE49458T1 (de) 1990-01-15
AU577843B2 (en) 1988-10-06
AU4079985A (en) 1985-10-24
EP0162203A3 (en) 1988-01-07
DE3575330D1 (de) 1990-02-15
DE3415183A1 (de) 1985-10-31

Similar Documents

Publication Publication Date Title
DE3739244C2 (fr)
DE19502150C1 (de) System zur Regelung der Aufladung einer Brennkraftmaschine
EP0364522B1 (fr) Procede et dispositif pour le reglage d'une soupape de degazage d'un reservoir
EP0162203B1 (fr) Procédé et dispositif d'adaptation du comportement de la caractéristique d'une tige d'actionnement
EP1427929A1 (fr) Procede et dispositif pour actionner au moins un turbocompresseur de moteur a combustion interne
DE19740918A1 (de) Verfahren und eine Vorrichtung zur Steuerung eines Gasflusses über ein Drosselventil in einem Verbrennungsmotor
DE4219791A1 (de) System zur Regelung der Aufladung einer Brennkraftmaschine
DE3539395A1 (de) Verfahren und einrichtung zur adaption der gemischsteuerung bei brennkraftmaschinen
WO1992005354A1 (fr) Procede et dispositif pour la commande et/ou la regulation d'une grandeur caracteristique d'un moteur a combustion interne
EP0190268B1 (fr) Procede et dispositif pour regler le nombre de tours en marche a vide d'un moteur a combustion interne
DE4315885C1 (de) Verfahren zur Drehmomenteinstellung
EP0136449B1 (fr) Procédé et dispositif d'adaptation de courbes de réglage
DE3933989C2 (fr)
EP1481153B1 (fr) Procede de commande d'un moteur a combustion interne
DE19812843B4 (de) Verfahren zur Ladedruckregelung einer Brennkraftmaschine
DE4041875C2 (fr)
EP3543514A1 (fr) Procédé et circuit de réglage permettant de déterminer une grandeur de réglage pour régler une pression de tube d'aspiration
EP1087106B1 (fr) Procédé de variation de phase d'arbre à cames de moteur à combustion interne
DE102004054321B4 (de) Regelvorrichtung für variables Ventilbetätigungssystem
DE3924953A1 (de) Vorrichtung zum steuern der kraftstoffversorgung fuer eine brennkraftmaschine
EP0178485B1 (fr) Dispositif de régulation de la pression de charge d'un moteur à combustion
EP0728922B1 (fr) Régulation de débit de masse d'air avec constante d'intégration adaptée pour moteur à combustion interne turbocompressée
WO1987005074A1 (fr) Dispositif pour le reglage de la stabilite de marche de moteurs a combustion
DE3931455A1 (de) Verfahren zur steuerung der luftzufuhr einer brennkraftmaschine eines kraftfahrzeugs
DE3518014C2 (de) Verfahren zur Einstellung einer Drosselklappe einer Brennkraftmaschine im Leerlauf

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19850301

AK Designated contracting states

Designated state(s): AT DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT

17Q First examination report despatched

Effective date: 19880511

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

REF Corresponds to:

Ref document number: 49458

Country of ref document: AT

Date of ref document: 19900115

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3575330

Country of ref document: DE

Date of ref document: 19900215

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee
26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950208

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950316

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980326

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991230

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020101