EP0292685A1 - Entraînement d'élévateur avec appareil de commande pour déplacement sans à coup - Google Patents

Entraînement d'élévateur avec appareil de commande pour déplacement sans à coup Download PDF

Info

Publication number
EP0292685A1
EP0292685A1 EP88105925A EP88105925A EP0292685A1 EP 0292685 A1 EP0292685 A1 EP 0292685A1 EP 88105925 A EP88105925 A EP 88105925A EP 88105925 A EP88105925 A EP 88105925A EP 0292685 A1 EP0292685 A1 EP 0292685A1
Authority
EP
European Patent Office
Prior art keywords
setpoint
jerk
control device
value
elevator drive
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
EP88105925A
Other languages
German (de)
English (en)
Other versions
EP0292685B1 (fr
Inventor
Klaus-Jürgen Dipl.-Ing. Klingbeil
Horst Woyciel
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.)
Inventio AG
Original Assignee
Inventio 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 Inventio AG filed Critical Inventio AG
Priority to AT88105925T priority Critical patent/ATE64355T1/de
Publication of EP0292685A1 publication Critical patent/EP0292685A1/fr
Application granted granted Critical
Publication of EP0292685B1 publication Critical patent/EP0292685B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/285—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical with the use of a speed pattern generator

Definitions

  • the present invention relates to an elevator drive with control device for jerk-free start-up, containing a lifting motor with a traction sheave for executing linear movements and devices for speed and displacement measurement, and also containing a drive control with a control amplifier, setpoint transmitters and actual value transmitters for the speed and travel, associated comparators and a control device for jerk-free start-up, control being carried out first by suppressing the start-up jerk and then according to predetermined displacement / speed curves.
  • the imbalance force resulting from the difference between the cabin load and the counterweight the braking force of the holding brake, the friction force resulting from the frictional resistances of the movable parts and the motor driving force resulting from the drive torque of the lifting motor.
  • some of these forces show discontinuities over time during the start-up phase.
  • DE-OS 31 24 018 discloses a device for adding weighing data to the control system of an elevator.
  • the aim of this device is to compensate the imbalance torque acting from the load side even at a standstill and absorbed by the holding brake before the start by a corresponding motor torque, so that there is no jerky start when releasing the now released holding brake.
  • the cabin load is measured directly as a measure of the imbalance torque and this weighing date is brought to bear on the drive motor via the control system.
  • This elevator control system is designed as an operational amplifier circuit with a speed control amplifier, the positive pole of which is connected to earth, and the setpoint and the actual value of the speed arrive at the negative pole, and in which a stabilizing resistor and the negative pole to the output of the speed amplifier also arrive a stabilizing capacitor are connected in series.
  • the stabilization resistor is bridged by a start switch and the weighing date is brought to the connection point between the stabilization resistor and the stabilizing capacitor with an auxiliary start switch. This is intended to ensure that the elevator starts up smoothly without the need for a separate weighing memory unit with complex control.
  • This device suffers from the fundamental disadvantage that it can only eliminate one of various causes of the jerk, namely the sudden effect the unbalance force when releasing the mechanical holding brake. Another cause of the start-up jerk, namely the inconsistent time course of the frictional resistances during their transition from static friction to sliding friction, cannot be remedied or alleviated in any way. In modern low-mass systems, however, such friction discrepancies are increasingly noticeable as jerks and, due to the elastic cable connection between the drive and the elevator car, easily lead to vibrations and oscillations in elevators.
  • Another disadvantage of the device shown in DE-OS 31 24 018 is that complex load measuring devices are required, the measuring accuracy and long-term stability of which are not sufficient in all cases.
  • the invention seeks to remedy this.
  • the application according to the invention is therefore based on the object of suppressing the starting jolt in elevator systems and thereby improving their driving comfort.
  • This jerk suppression should be effective in both directions of travel and this with any loads and with any static and dynamic friction values.
  • the jerk suppression according to the invention should also be designed so that the regulated elevator drives themselves are used for jerk suppression and therefore only a modest additional effort is required for this.
  • This object is achieved according to the invention with the means as characterized in the version of the independent claim.
  • Advantageous further developments are specified in the dependent claims. These means not only advantageously achieve the object on which the invention is based, but also create a control device for smooth start-up, which offers the following advantages:
  • a first advantage of the invention can be seen in that, by suppressing the start-up jerk, all those vibrations and oscillations that would otherwise be caused by it are eliminated would be triggered. This is of particular importance in elevator systems, where the car and drive are not rigidly connected but rather elastically via long ropes and the whole thing is therefore a weakly damped, oscillatable structure. With the start jerk there is no significant vibration excitation for this system and thus also the corresponding vibrations and settling processes which would delay the start-up process and comfortably impair it. Furthermore, it has proven to be advantageous that the time suppression between the travel command and the reaching of the nominal speed is shortened with the jerk suppression according to the invention.
  • This time saving is based on a double saving of time: on the one hand, the elevator car starts to move earlier because the starting point of the breakaway point is reached earlier due to the initially increased target travel curve and, on the other hand, the subsequent run-up can be optimal due to the lack of vibrations and settling processes be pulled through for a short time. When starting up, no time is lost that can no longer be spent later. This time saving is important for elevator systems because it increases their conveying capacity. Additional advantages achieved with the application according to the application result from the fact that essentially the already existing speed control device can be used for jerk suppression and that the functions jerk suppression and speed control are separated in time because the jerk is first suppressed and only then the speed is regulated.
  • the dual use of the drive control circuit for jerk suppression and speed control also means that these two functions work together or fail together. Therefore, if the jerk suppression fails, no drive is possible and therefore no jerk that would have to be suppressed. Such jerk suppression can therefore be regarded as fail-safe and accordingly has a very high level of reliability. It is also obvious that the aforementioned temporary setpoint multiplication can be quickly and easily installed in speed-controlled elevator drives at any time. The application according to the application is therefore particularly suitable for retrofitting conventional speed-controlled elevator systems for jerk suppression and thereby subsequently improving their driving behavior.
  • Fig. 1 shows a conventional, speed-controlled three-phase drive 1, wherein a normal lifting motor 2 with high-speed winding 3 and fine winding 4 via a worm gear 5 and a traction sheave 6 drives an elevator car 7 with counterweight 8 in a shaft 9 in a known manner and itself, controlled by one Analog controller 11 is driven by a three-phase controller 12 and a controlled rectifier 13.
  • the setpoints for the acceleration and deceleration are digitally stored as driving curves in a setpoint memory 14 from where they are led to the setpoint input 15 of the analog controller 11.
  • a digital tachometer 16 of the incremental encoder type is coupled to the worm shaft 17 and connected to the actual input 20 of the analog controller 11 via a pulse shaper 18 and a low-pass filter 19.
  • the target travel curves are called up from the target value memory 14, the same is connected to the sequence control 21 and to the path counter 22, which in a known manner forms the path by summing up the speed-proportional pulse frequency and is also connected to the pulse shaper 18 for this purpose.
  • FIG. 2 contains, in a linearized representation, diagrams for the course of the forces over time, as well as for the actual start-up curves resulting therefrom, in an elevator system according to FIG. 1, that is to say without the jerk suppression according to the invention.
  • the diagram of the motor driving force is labeled 26, the corresponding target starting curve is 27.
  • the friction force is independent of the direction of travel and becomes static friction R H when stationary, moving to sliding friction R G.
  • the resulting driving force is shown in diagram 28 and the corresponding actual starting curve 29 with the starting point t G.
  • the resulting drive force is according to the diagram 30 associated with the actual start-up curve 31 and the Losreisszeittician t U1.
  • the elevator drive equipped with the control device according to the invention for smooth start-up is shown in the block diagram of FIG. 3.
  • a lifting motor 2 is provided which is driven by a three-phase controller 12 and a controlled rectifier 13, its actual speed being detected by a digital tachometer 16 and passed to the pulse shaper 18, the output of which is fed to the inputs of the travel counter 22 and of the low-pass filter 19 is performed.
  • the lifting motor 2 is regulated to speed, for which purpose speed setpoints forming setpoint travel curves are digitally stored in the setpoint memory 14 as a function of the path.
  • the setpoint memory 14 is connected to the sequence controller 21 and the travel counter 22 for the setpoint query, and its output is connected to the setpoint input 41 of the comparator 42 via a setpoint multiplier 39 and a digital / analog converter 40. There is also a connection from the output of the low-pass filter 19 to the actual input 43 of the comparator 42, and from its output 44 to the input of the Pi controller 45.
  • the on / off circuit 46 is connected to the start input 47 of the Sequence control 21, controlled at its stop input 48 by the digital tachometer 16 and is connected at its output to the setpoint multiplier 39.
  • 3 shows a first control circuit 49 for jerk suppression and a second control circuit 50 for speed control.
  • the switching elements 39, 40, 42, 45, 12, 2, 16 are used twice for the setpoint specification and control by both control circuits 49, 50 in time division multiplex.
  • FIGS. 4, 5 and 6 Diagrams relating to the control device according to the invention according to FIG. 3 are shown in FIGS. 4, 5 and 6. This shows that the frictional jolt can be completely suppressed in both directions of travel (Fig. 4) and this with all friction conditions (Fig. 5) and with all loads (Fig. 6).
  • Fig. 4 shows the time course of the forces and the associated starting curves in the absence, partial and complete jerk suppression. Again, static friction is labeled R H , sliding friction is labeled R G , and it is assumed that the cabin and counterweight are balanced. If the multiplication factor m has the value 1, then the jerk suppression is not effective, so that the resultant driving force 51 and the starting curve 53 with approach tangent 54 result at the time t 1.
  • FIG. 5 shows how the jerk suppression according to the invention can be adapted to different friction conditions that are typical in elevator systems. A distinction is made between two friction states, which are determined by their associated static and sliding friction values R H1 ; R G1 and R H2 ; R G2 are characterized.
  • FIG. 7a An expanded, general configuration of the jerk suppression according to the invention can be seen from the block diagram of FIG. 7a.
  • three setpoint / actual value feedback circuits 85, 86, 87 are now provided, with the controllers 88, 89, 90, each containing a setpoint multiplier 39.
  • the input also acts / Off circuit 46 to a multiplier 91, which temporarily increases the V setpoint via the controller 90 by the multiplication factor m.
  • the multiplier 91 can also be connected to the controller 88 or the controller 89.
  • FIG. 7b shows a comparison of conventional start-up curves that can be achieved with the inventive jerk suppression according to FIG. 7a.
  • FIGS. 1 to 7 To explain the mode of operation of the jerk suppression according to the invention, reference is made to FIGS. 1 to 7 and it is assumed here that an elevator car 7 in an elevator shaft 8 is to be set in motion from a standstill by means of a speed-controlled drive 1.
  • the tacho pulses are counted in the travel counter 22 and generate corresponding speed setpoints at the output of the setpoint memory 14. These are compared in the controller with the actual speed value, which corresponds to the frequency of the tacho pulses.
  • a driving torque is generated in the motor by phase control via the three-phase controller 12 or the fine winding of the motor is supplied with direct current via the phase control controlled rectifier 13, so that a braking torque arises due to the eddy current effect.
  • this start-up process leads to an actual start-up curve 29 with start-up tangent 34 and settling curve 35.
  • control loop 49 for jerk suppression and control loop 50 for normal speed control. Furthermore, it is important that the jerk suppression according to the invention and the speed control of the ramp-up do not take place simultaneously but in succession: the jerk suppression in the period from the start to and with the start of the movement, the speed regulation from the start of the movement to the end of the regulated ramp-up. Because of this time separation, the switching elements 14, 39, 40, 45, 12, 2, 16 are used by both control loops 49, 50 in time division multiplex.
  • the drive starts by the sequence controller 21 calling up a first setpoint specification from the setpoint memory 14 and using the on / off circuit 46 the multiplication factor m of the setpoint Multiplier 39 sets to a value> 1.
  • the first setpoint which has been increased in this way acts via the digital-analog converter 40, the comparator 42, the PI controller 45 and the three-phase controller 12 on the lifting motor 2, where a motor driving force is generated which, depending on the chosen multiplication factor m, along the linearly assumed diagrams 52, 57 or 62 runs up. If the motor driving force exceeds the static friction force R H , movement occurs.
  • the digital tachometer 16 which also serves as a movement detector, detects this movement after just a few hundredths of a millimeter of traction sheave movement and switches the on / off circuit 46 to "off" via the stop input 48, and thus the multiplication factor m back to 1.
  • the resulting driving force 51 accordingly has a discontinuity with the amplitude R H -R G , which is the greatest possible Lichen friction jerk causes and leads to the starting curve 53 with approach tangent 54 and transient 55.
  • FIG. 5 shows how a complete jerk suppression can be achieved with any frictional conditions R H ; R G with the proposed invention.
  • first friction values R H1 ; R G1 and ineffective jerk suppression m 1
  • the resulting driving force 66 results, as well as the starting curve 67 with approach tangent 68.
  • the jerk suppression takes place in an analogous manner for any further friction values R H2 ; R G2 .
  • the associated diagrams are labeled 73, 74.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP88105925A 1987-05-27 1988-04-14 Entraînement d'élévateur avec appareil de commande pour déplacement sans à coup Expired - Lifetime EP0292685B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105925T ATE64355T1 (de) 1987-05-27 1988-04-14 Aufzugsantrieb mit regeleinrichtung fuer ruckfreies anfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2046/87 1987-05-27
CH204687 1987-05-27

Publications (2)

Publication Number Publication Date
EP0292685A1 true EP0292685A1 (fr) 1988-11-30
EP0292685B1 EP0292685B1 (fr) 1991-06-12

Family

ID=4224672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105925A Expired - Lifetime EP0292685B1 (fr) 1987-05-27 1988-04-14 Entraînement d'élévateur avec appareil de commande pour déplacement sans à coup

Country Status (10)

Country Link
US (1) US4828075A (fr)
EP (1) EP0292685B1 (fr)
JP (1) JPS63306176A (fr)
CN (1) CN1010002B (fr)
AT (1) ATE64355T1 (fr)
CA (1) CA1290476C (fr)
DE (1) DE3863233D1 (fr)
ES (1) ES2023460B3 (fr)
FI (1) FI96673C (fr)
IN (1) IN171711B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433627A2 (fr) * 1989-12-20 1991-06-26 Siemens Aktiengesellschaft Méthode et dispositif pour compenser la charge d'une commande de position à moment polarisé au moment du démassage
EP0477867A2 (fr) * 1990-09-28 1992-04-01 Otis Elevator Company Technique de commande de démarrage d'un ascenseur pour démarrage à coup et dépassement d'accélération reduits
EP1562089A2 (fr) * 2004-02-04 2005-08-10 GfA - Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG Dispositif et méthode pour la commande de déplacement horizontal ou vertical d'une charge
WO2020064099A1 (fr) * 2018-09-26 2020-04-02 Siemens Aktiengesellschaft Procédé pour maintenir la position de rotation d'un rotor, sollicité par un couple extérieur, d'une machine à courant triphasé à excitation doté d'un démarreur progressif et machine à courant triphasé

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01271382A (ja) * 1988-04-21 1989-10-30 Nippon Otis Elevator Co エレベータ始動保償装置
US4939679A (en) * 1988-08-09 1990-07-03 Otis Elevator Company Recalibrating an elevator load measuring system
US5327059A (en) * 1992-09-24 1994-07-05 Archive Corporation Tape drive capstan motor servo system with static friction compensation
US5424498A (en) * 1993-03-31 1995-06-13 Otis Elevator Company Elevator start jerk removal
JPH0845246A (ja) * 1994-07-29 1996-02-16 Sony Corp 記録媒体、再生方法、記録装置、及び再生装置
CN102311023B (zh) * 2011-08-18 2014-04-02 上海交通大学 在线检测载重的矿井提升机附加启动力矩给定方法及系统
KR101657020B1 (ko) * 2012-08-29 2016-09-12 미쓰비시덴키 가부시키가이샤 엘리베이터의 제어 장치 및 엘리베이터의 제어 방법
WO2018003500A1 (fr) 2016-06-30 2018-01-04 三菱電機株式会社 Dispositif de commande d'ascenseur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908156A (en) * 1972-12-19 1975-09-23 Mitsubishi Electric Corp Induction motor speed control apparatus
US4213517A (en) * 1978-07-06 1980-07-22 Fujitec Co., Ltd. Elevator control system
US4235309A (en) * 1978-10-18 1980-11-25 Schindler Haughton Elevator Corp. Control for starting electric motors
US4493398A (en) * 1982-05-03 1985-01-15 Iventio Ag Drive control for a transportation system, especially an elevator
US4503937A (en) * 1982-12-01 1985-03-12 Schindler Haughton Elevator Corporation Elevator control circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499858B1 (fr) * 1968-11-29 1974-03-07
JPS534947A (en) * 1976-07-05 1978-01-18 Toshiba Corp Controller for elevator
JPS56159705A (en) * 1980-05-12 1981-12-09 Mitsubishi Electric Corp Speed command generator
DE3124018A1 (de) * 1981-06-19 1982-12-30 Elevator GmbH, 6340 Baar Apparatur zum anfuegen von waegedaten an das regelsystem eines aufzugs
US4380275A (en) * 1981-06-24 1983-04-19 Elevator Gmbh Apparatus for interfacing weighing data with a lift control system
US4738337A (en) * 1987-07-29 1988-04-19 Westinghouse Electric Corp. Method and apparatus for providing a load compensation signal for a traction elevator system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908156A (en) * 1972-12-19 1975-09-23 Mitsubishi Electric Corp Induction motor speed control apparatus
US4213517A (en) * 1978-07-06 1980-07-22 Fujitec Co., Ltd. Elevator control system
US4235309A (en) * 1978-10-18 1980-11-25 Schindler Haughton Elevator Corp. Control for starting electric motors
US4493398A (en) * 1982-05-03 1985-01-15 Iventio Ag Drive control for a transportation system, especially an elevator
US4503937A (en) * 1982-12-01 1985-03-12 Schindler Haughton Elevator Corporation Elevator control circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AEG-MITTEILUNGEN, Band 57, Nr. 5, Mai 1967, Seiten 260-264; H. FUHRMANN: "Der Fahrkurvenrechner, ein neuer Sollwertgeber für die Antriebstechnik" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433627A2 (fr) * 1989-12-20 1991-06-26 Siemens Aktiengesellschaft Méthode et dispositif pour compenser la charge d'une commande de position à moment polarisé au moment du démassage
EP0433627A3 (en) * 1989-12-20 1992-08-12 Siemens Aktiengesellschaft Method and apparatus to compensate for load of a biased moment position drive at the time of starting
EP0477867A2 (fr) * 1990-09-28 1992-04-01 Otis Elevator Company Technique de commande de démarrage d'un ascenseur pour démarrage à coup et dépassement d'accélération reduits
EP0477867A3 (en) * 1990-09-28 1992-09-02 Otis Elevator Company Elevator start control technique for reduced start jerk and acceleration overshoot
EP1562089A2 (fr) * 2004-02-04 2005-08-10 GfA - Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG Dispositif et méthode pour la commande de déplacement horizontal ou vertical d'une charge
EP1562089A3 (fr) * 2004-02-04 2007-04-11 GfA - Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG Dispositif et méthode pour la commande de déplacement horizontal ou vertical d'une charge
WO2020064099A1 (fr) * 2018-09-26 2020-04-02 Siemens Aktiengesellschaft Procédé pour maintenir la position de rotation d'un rotor, sollicité par un couple extérieur, d'une machine à courant triphasé à excitation doté d'un démarreur progressif et machine à courant triphasé
CN112740541A (zh) * 2018-09-26 2021-04-30 西门子股份公司 保持具有软起动器的永磁激励的三相电机的施加有外部转矩的转子的旋转位置的方法和三相电机

Also Published As

Publication number Publication date
ES2023460B3 (es) 1992-01-16
CA1290476C (fr) 1991-10-08
EP0292685B1 (fr) 1991-06-12
FI96673B (fi) 1996-04-30
IN171711B (fr) 1992-12-19
US4828075A (en) 1989-05-09
DE3863233D1 (de) 1991-07-18
ATE64355T1 (de) 1991-06-15
CN1010002B (zh) 1990-10-17
CN88103105A (zh) 1988-12-14
FI882322A (fi) 1988-11-28
FI882322A0 (fi) 1988-05-18
FI96673C (fi) 1996-08-12
JPH0565433B2 (fr) 1993-09-17
JPS63306176A (ja) 1988-12-14

Similar Documents

Publication Publication Date Title
DE2403204C3 (de) Bremskraftregler für Aufzug-Fahrkörbe
DE4130970C2 (de) Steuersystem für eine Bergwerkswinde
EP0915804B1 (fr) Procede et dispositif de commande d'un ascenseur hydraulique
DE69217353T2 (de) Verfahren und vorrichtung zur steuerung der verhütung des ausschlags eines kranseils
EP0292685B1 (fr) Entraînement d'élévateur avec appareil de commande pour déplacement sans à coup
DE112013004225B4 (de) Aufzugs-Steuerungsvorrichtung und Aufzugs-Steuerungsverfahren
DE2102583B2 (de) Aufzug-Steuerschaltung
DE69716594T2 (de) Verfahren und vorrichtung zur verzögerung eines aufzugs
EP3215449B1 (fr) Ascenseur équipé d'un dispositif de freinage
EP0318660B1 (fr) Procédé et installation pour la régulation de position d'un entraînement de positionnement, en particulier pour des ascenseurs
DE4119253C2 (fr)
EP0094109A1 (fr) Commande de l'entraînement d'un ascenseur
DE69617329T2 (de) Verfahren zum Anhalten eines Aufzuges in einem Stockwerk
DE2004812C2 (de) Steuereinrichtung zur Steuerung der Geschwindigkeit einer schnell fahrenden Fahrstuhlkabine
DE2611067A1 (de) Fahrstuhlmotorsteuerung
DE3048536C2 (fr)
DE19520955C2 (de) Regelanordnung für Abwickeleinrichtungen für Bahnen
DE3741133C1 (de) Antriebsvorrichtung
EP0294578B1 (fr) Equipement de réglage de l'arrivée d'un ascenseur
DE3032310C2 (fr)
DE2340930B2 (de) Drehzahlregelanordnung für ein Antriebsaggregat mit zwei miteinander verbundenen Elektromotoren
DE2646893C3 (de) Elektrischer Regelantrieb
EP0440868B1 (fr) Régulation pour la commande du basculement d'un convertisseur à plusieurs moteurs
AT223776B (de) Verfahren und Steueranlage zur Steuerung von Aufzugsmotoren
DE2414721B2 (de) Verfahren zur Steuerung der Drehzahl- bzw. Geschwindigkeit einer frequenzumrichtergespeisten Drehstrom-Asynchronmaschine

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19890413

17Q First examination report despatched

Effective date: 19900410

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI

REF Corresponds to:

Ref document number: 64355

Country of ref document: AT

Date of ref document: 19910615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3863233

Country of ref document: DE

Date of ref document: 19910718

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2023460

Country of ref document: ES

Kind code of ref document: B3

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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000313

Year of fee payment: 13

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

Ref country code: AT

Payment date: 20000322

Year of fee payment: 13

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

Ref country code: ES

Payment date: 20000418

Year of fee payment: 13

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

Ref country code: CH

Payment date: 20000720

Year of fee payment: 13

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

Ref country code: GB

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

Effective date: 20010414

Ref country code: AT

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

Effective date: 20010414

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

Ref country code: ES

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

Effective date: 20010416

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

Ref country code: LI

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

Effective date: 20010513

Ref country code: CH

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

Effective date: 20010513

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

Effective date: 20010414

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030203

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050414

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

Ref country code: FR

Payment date: 20060411

Year of fee payment: 19

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

Ref country code: DE

Payment date: 20060419

Year of fee payment: 19

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: 20071101

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

Ref country code: FR

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

Effective date: 20070430