WO2005066524A1 - Dispositif dote d'une unite pour determiner le regime d'entree d'une boite de vitesses a reglage continu - Google Patents

Dispositif dote d'une unite pour determiner le regime d'entree d'une boite de vitesses a reglage continu

Info

Publication number
WO2005066524A1
WO2005066524A1 PCT/EP2004/013188 EP2004013188W WO2005066524A1 WO 2005066524 A1 WO2005066524 A1 WO 2005066524A1 EP 2004013188 W EP2004013188 W EP 2004013188W WO 2005066524 A1 WO2005066524 A1 WO 2005066524A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
speed
offset
input speed
continuously variable
Prior art date
Application number
PCT/EP2004/013188
Other languages
German (de)
English (en)
Inventor
Jochen Strenkert
Original Assignee
Daimlerchrysler Ag
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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2005066524A1 publication Critical patent/WO2005066524A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
    • F16H61/66254—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H2059/142—Inputs being a function of torque or torque demand of driving resistance calculated from weight, slope, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/60—Inputs being a function of ambient conditions
    • F16H59/66—Road conditions, e.g. slope, slippery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
    • F16H61/66254—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling
    • F16H61/66259—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling using electrical or electronical sensing or control means

Definitions

  • the invention relates to a device with a unit for determining an input speed of a continuously variable transmission according to the preamble of claim 1.
  • Devices with a unit for determining an input speed of a continuously variable transmission of a motor vehicle from at least one variogram are known.
  • the variogram is stored as a two-dimensional characteristic curve field in a memory unit of the unit, from which the unit reads a target input speed depending on a pedal position and a speed of the motor vehicle and controls this by setting a translation of the continuously variable transmission.
  • generic devices which comprise a memory unit in which a plurality of variograms, each associated with an operating mode, are stored.
  • JP-A-2000027980 describes a vehicle control system for a motor vehicle with an engine and a continuously variable transmission.
  • the control system determines an ordinary input speed of the transmission depending on a pedal position and the speed of the motor vehicle.
  • the normal speed is designed for driving on a road with a 0% gradient.
  • the tax system also determines a slope resistance and corrects the normal speed depending on the slope resistance.
  • the invention is based on the object of providing a generic device which can be flexibly adapted in particular to a road incline.
  • the object is solved by the features of claim 1.
  • Advantageous refinements result from the subclaims.
  • the invention is based on a device with a unit which is provided for determining an input speed of a continuously variable transmission of a motor vehicle from at least one variogram and for correcting a raw speed determined from the variogram depending on a road gradient.
  • the unit be provided to determine a minimum speed that is dependent on the road gradient. In this way it can advantageously be achieved that the input speed, and thus an engine speed, does not fall below a lower limit. Overloading the motor and undesired oscillation circuits, which preferably occur in a low speed range, can advantageously be prevented. It can also be achieved that the motor always has a torque reserve. In this case, the minimum speed can advantageously be dependent on further parameters that appear useful to the person skilled in the art. The minimum speed may depend, for example, on the input speed and / or the speed and / or the acceleration and / or the pedal position.
  • the road gradient is to be referred to a characteristic variable that at least decisively determines a driving resistance, which can be sensed directly via a gradient measuring device or can be calculated by the unit or a computing unit separate from the unit.
  • a calculated or sensed acceleration, an accelerating force of the drive wheels generated by an engine and a mass of the motor vehicle can advantageously be used.
  • the correction of the raw speed can take place continuously or in at least one operating mode, for example in an uphill mode or in a downhill mode.
  • a variogram is intended to be a general function for determining the raw speed depending on at least one, preferably two, parameters.
  • the variogram can also be provided for determining a variable, such as, for example, a ratio applied to the continuously variable transmission, from which a raw speed can be determined at least essentially unambiguously.
  • the variogram can be designed as a memory query function, a function for calculating the raw speed and as a combination of both.
  • all parameters that seem sensible to a person skilled in the art, such as different speeds and / or a throttle valve angle of an engine of the motor vehicle are conceivable as parameters.
  • a speed and a pedal position of the motor vehicle have proven to be particularly advantageous.
  • “intended” should also be interpreted and equipped.
  • a particularly simple and flexible device that can be adapted to a type of engine and transmission can be achieved if the unit comprises a storage unit for storing the minimum speed.
  • the unit is provided to correct a raw speed determined from the variogram depending on a road gradient. It can advantageously be achieved that the device can be flexibly adapted to a road gradient. Furthermore, pendulum shifts of the continuously variable transmission, which preferably occur in a lower speed range at a load limit of the engine and overloading of an engine of the motor vehicle, can advantageously be avoided.
  • a particularly simple and flexible correction of the raw speed can be achieved if the unit is provided to apply an offset dependent on the road gradient to the raw speed determined from the variogram.
  • the offset can also depend on further parameters, such as, for example, the speed and / or the pedal position and / or the input speed.
  • the unit comprises a storage unit for storing the offset
  • a particularly adaptable device can be achieved. Units adapted to different engine types or transmission types can be conveniently and inexpensively achieved by adapting the offset stored in the storage unit.
  • the unit is intended to apply the second offset dependent on an input speed and / or a pedal position to the raw speed determined from the variogram, it can be achieved that a sufficient Acceleration reserve is guaranteed.
  • the second offset increases in particular with increasing pedal position.
  • the second offset may be zero in a range in which the pedal position is less than a limit.
  • the unit is intended to deactivate an uphill mode, which is characterized by the correction of the raw speed depending on the road gradient, depending on the gradient of the road, it can be achieved that the situation in situations with a slight gradient can advantageously determine the input speed easily without the correction depending on the gradient which would be at most imperceptible in such situations.
  • the unit is intended to correct the raw speed as a function of a speed, a correction that can be adapted particularly advantageously to a driving situation can be achieved. It can be achieved in particular by a speed-dependent selection of the offset that this is at least substantially the same as a speed-dependent value which is at least necessary to avoid oscillating circuits.
  • the unit is provided for limiting the input speed, damage to the continuously variable transmission can advantageously be avoided.
  • FIG. 1 shows a motor vehicle with a continuously variable transmission and with a unit for actuating the same
  • FIG. 2 shows a flowchart of a program of the unit for determining a minimum speed and an offset depending on a road gradient
  • FIG. 3 shows a block of the program provided for determining the minimum speed from FIG. 2
  • FIG. 4 a block of the program from FIG. 2 provided for determining the offset.
  • FIG. 1 shows a motor vehicle 12 with a continuously variable transmission 11 and with a unit 10 for actuating the continuously variable transmission 11.
  • the unit 10 is integrated in a housing of the continuously variable transmission 11 and has sensors (not shown) for detecting speeds of different shafts of the transmission 11
  • the unit 10 comprises a hydraulic actuator 36 for adjusting a gear ratio set on the transmission 11 and an arithmetic unit 14.
  • the unit 10 is provided for executing a program shown in FIG. 2 as a flow chart for determining an input speed n e .
  • the unit 10 calculates the transmission ratio to be set on the transmission 11 in order to achieve the input speed n e , an output speed on the transmission 11 being determined by the speed v.
  • the unit 10 reads in parameters from the CAN bus 15 for the speed v, the acceleration a and for the pedal position p.
  • the unit 10 reads a raw speed n v assigned to the speed v and the pedal position p from a variogram stored as a two-dimensional array in a memory unit 13 of the computing unit 14 and calculates from the acceleration a, the speed v, the pedal position p and a mass of the motor vehicle 12 stored in the storage unit 13 is a parameter for a road gradient ⁇ , depending on which the unit 10 corrects the raw speed n v to determine the input speed n e .
  • a decision step 18 of the program of the unit 10 which is provided for deactivating an uphill mode in which the program carries out the roadway slope-dependent correction of the raw speed n v depending on the roadway slope ⁇
  • the unit 10 sets a control bit to 0 if the A characteristic value for the road gradient ⁇ determined in step 17 is smaller than a threshold value stored in the storage unit 13 and dependent on a vehicle and engine type, and thereby deactivates the acceleration mode. Is the characteristic value for the Road slope ⁇ greater than the threshold value, the unit 10 sets the control bit to 1 in decision step 18 and thus activates the uphill mode.
  • the unit determines in a block 19, which is shown in more detail in Figure 3, a minimum speed, which is shown in more detail in Figure 4 n m i n and in a block 20, an offset n 0fs.
  • the unit 10 determines the input speed n e in accordance with
  • n e max (n min , n v + n ofs ).
  • the unit 10 applies the raw speed n v with the offset n 0fs .
  • the unit 10 reads in a read-out step 22 depending on the road gradient ⁇ and the speed v from the storage unit 13, which .the for storing minimum speed is n m i n designed, the minimum speed n m i n from a two-dimensional array of and in a step 23 multiplies the result by the value of the control bit determined in decision step 18.
  • the unit 10 first subjects the result to a direct restriction 24 and in a subsequent block 25 the unit 10 calculates the difference n m i n -n v and subjects it to a restriction 26, adds the raw speed n v and gives the result as the minimum speed n m i n off.
  • the upper and lower limits applied in the restrictions 24, 26 are stored in the storage unit 13.
  • the unit 10 sets a control bit to 0 in a decision step 27 if the speed v is a stored threshold value exceeds. Otherwise, unit 10 sets the control bit to 1. In addition, unit 10 reads in one
  • Reading step 28 depends on the road gradient ⁇ and on the raw speed n v from the memory unit 13, which is designed to store the offset n 0fS , the offset n ofs from a two-dimensional array.
  • the unit 10 multiplies the offset n ofs by the values of the control bits set in the decision steps 18 and 27.
  • the unit 10 calculates the rate of change n e ⁇ to which the input speed n e would be subject if the raw speed n v were subjected to the offset n 0 f S output from step 29 and limits the offset n ofs such that the
  • Rate of change n e ⁇ remains limited.
  • the unit 10 forms a discrete derivative of the offset n 0fS according to time in a step 31 with the aid of a delay element 32, adds a rate of change n v 'of the raw speed n v in a step 33, limits the sum, subtracts the rate of change in a step 34 n v ⁇ of the raw speed n v again and limits the result in a step 35.
  • a second offset (not shown) can also be added to the offset n 0 f S , which is determined in the readout step 28.
  • the second offset depends on the input speed n e and the pedal position p.
  • the unit 10 reads the second offset depending on the quantities mentioned from a two-dimensional array stored in the memory unit 13.
  • the second offset can also be taken into account in the case of a unit which is one from the variogram determined raw speed n v corrected depending on a road gradient ⁇ without determining a minimum speed n m i n .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention concerne un dispositif doté d'une unité (10) qui sert à déterminer un régime d'entrée (ne) d'une boîte de vitesses (11) à réglage continu d'un véhicule à moteur (12) à partir d'au moins un variogramme et à corriger un régime brut déterminé par le variogramme en fonction de l'inclinaison de la chaussée. L'invention est caractérisée en ce que l'unité (10) sert à déterminer un régime minimum dépendant de l'inclinaison de la chaussée (F).
PCT/EP2004/013188 2003-12-23 2004-11-20 Dispositif dote d'une unite pour determiner le regime d'entree d'une boite de vitesses a reglage continu WO2005066524A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10360642.4A DE10360642B4 (de) 2003-12-23 2003-12-23 Vorrichtung mit einer Einheit zum Bestimmen einer Eingangsdrehzahl eines stufenlosen Getriebes
DE10360642.4 2003-12-23

Publications (1)

Publication Number Publication Date
WO2005066524A1 true WO2005066524A1 (fr) 2005-07-21

Family

ID=34706441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/013188 WO2005066524A1 (fr) 2003-12-23 2004-11-20 Dispositif dote d'une unite pour determiner le regime d'entree d'une boite de vitesses a reglage continu

Country Status (2)

Country Link
DE (1) DE10360642B4 (fr)
WO (1) WO2005066524A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8600633B2 (en) 2010-07-29 2013-12-03 GM Global Technology Operations LLC Gear preselect systems for a dual clutch transmission
WO2018093424A1 (fr) * 2016-11-18 2018-05-24 Allison Transmission, Inc. Système et procédé de sélection de rapport pour monter une côte

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0708275A1 (fr) * 1994-10-21 1996-04-24 Van Doorne's Transmissie B.V. Méthode et dispositif de commande du rapport d'une transmission à variation continue
US5611748A (en) * 1994-06-09 1997-03-18 Unisia Jecs Corporation Control apparatus for vehicle with continuously variable transmission
US5749804A (en) * 1995-10-20 1998-05-12 Nissan Motor Co., Ltd. Continuously variable transmission control apparatus
EP0924448A2 (fr) * 1997-12-18 1999-06-23 Fuji Jukogyo Kabushiki Kaisha Commande pour un variateur continu de vitesse
JP2000027980A (ja) 1998-07-15 2000-01-25 Nissan Motor Co Ltd 車両駆動力制御装置
US6029107A (en) * 1996-03-01 2000-02-22 Hitachi, Ltd. Control apparatus for an automatic transmission of a vehicle and control method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540925A1 (de) 1995-11-03 1997-05-07 Bayerische Motoren Werke Ag Stufenlos verstellbares Getriebe eines Kraftfahrzeuges
JP3601347B2 (ja) * 1999-03-05 2004-12-15 日産自動車株式会社 車両制御装置及び走行抵抗の測定方法
DE10016373A1 (de) * 2000-04-04 2001-10-18 Voith Turbo Kg Verfahren zur Bereitstellung einer Mehrzahl unterschiedlicher Schaltprogramme und Steuervorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611748A (en) * 1994-06-09 1997-03-18 Unisia Jecs Corporation Control apparatus for vehicle with continuously variable transmission
EP0708275A1 (fr) * 1994-10-21 1996-04-24 Van Doorne's Transmissie B.V. Méthode et dispositif de commande du rapport d'une transmission à variation continue
US5749804A (en) * 1995-10-20 1998-05-12 Nissan Motor Co., Ltd. Continuously variable transmission control apparatus
US6029107A (en) * 1996-03-01 2000-02-22 Hitachi, Ltd. Control apparatus for an automatic transmission of a vehicle and control method thereof
EP0924448A2 (fr) * 1997-12-18 1999-06-23 Fuji Jukogyo Kabushiki Kaisha Commande pour un variateur continu de vitesse
JP2000027980A (ja) 1998-07-15 2000-01-25 Nissan Motor Co Ltd 車両駆動力制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8600633B2 (en) 2010-07-29 2013-12-03 GM Global Technology Operations LLC Gear preselect systems for a dual clutch transmission
WO2018093424A1 (fr) * 2016-11-18 2018-05-24 Allison Transmission, Inc. Système et procédé de sélection de rapport pour monter une côte
US10040456B2 (en) 2016-11-18 2018-08-07 Allison Transmission, Inc. System and method for hill climbing gear selection
GB2570594A (en) * 2016-11-18 2019-07-31 Allison Transm Inc System and method for hill climbing gear selection
GB2570594B (en) * 2016-11-18 2022-07-13 Allison Transm Inc System and method for hill climbing gear selection

Also Published As

Publication number Publication date
DE10360642B4 (de) 2019-03-07
DE10360642A1 (de) 2005-07-28

Similar Documents

Publication Publication Date Title
DE19515534B4 (de) Steuervorrichtung für automatisches Getriebe und ein Steuerverfahren hierfür
DE2929266C2 (de) Steuersystem für ein automatisches Getriebe
EP1399327B1 (fr) Procede pour commander l'ensemble transmission d'un vehicule automobile
DE3736192C2 (fr)
DE4107542C2 (de) Sicherheitssystem für eine Drosselklappensteuerung
EP0739465B1 (fr) Commande pour boite de vitesses automatique d'automobile
DE4021810A1 (de) Antriebsschlupf-regelsystem
DE19511866A1 (de) Anordnung zur zyklischen Anpassung einer Kennlinie für die Umschaltung von Gängen bei einem automatischen Getriebe eines Kraftfahrzeuges
EP0531567A1 (fr) Commande pour train moteur de véhicule automobile avec une transmission automatique
DE19626990A1 (de) Vorrichtung und Verfahren zur Schaltsteuerung in Kraftfahrzeug-Automatikgetrieben
DE19504862A1 (de) Vorrichtung und Verfahren zur Getriebe-Schaltsteuerung mit Drehmomentrückkopplung
DE102008040299A1 (de) Gangschaltsystem für ein Fahrzeug, Steuervorrichtung und Steuerverfahren für ein Automatikgetriebe
DE102013001666A1 (de) Verfahren und Vorrichtung zur Anpassung des Fahrverhaltens eines Fahrzeugs
DE69822560T2 (de) Steuereinrichtung zum Regeln der Getriebeübersetzung eines stufenlosen Wechselgetriebes
DE102006007740B4 (de) Verfahren und Vorrichtung zur Regelung des Antriebsschlupfes angetriebener Räder eines Fahrzeugs mit der Motordrehzahl als Stellgröße
DE4324091C2 (de) Verfahren und Vorrichtung zum Steuern eines automatischen Getriebes
DE602005004781T2 (de) Verfahren zur steuerung eines eingestellten drehmoments für räder eines automatikgetriebes für ein kraftfahrzeug und entsprechende vorrichtung
DE19933010A1 (de) Steuerung der Fahrzeugantriebskraft
DE19610950B4 (de) System zur Verstellung der Übersetzung eines stufenlosen Getriebes
WO2000024604A1 (fr) Procede de commande d'une boite automatique d'un vehicule automobile
DE60211252T2 (de) Antriebsschlupfregelungssystem
DE10133681B4 (de) Vorrichtung zum Steuern einer konstanten Fahrzeuggeschwindigkeit und Verfahren zum Steuern einer konstanten Fahrzeuggeschwindigkeit
WO2005066524A1 (fr) Dispositif dote d'une unite pour determiner le regime d'entree d'une boite de vitesses a reglage continu
DE102014224256A1 (de) Fahrzeugkarosserieschwingungssteuervorrichtung für ein fahrzeug
DE10238346B4 (de) Verfahren und Steuersystem zur Reduzierung von senkrechten Lageschwingungen eines Fahrzeugs

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase