EP0294578B1 - Equipement de réglage de l'arrivée d'un ascenseur - Google Patents

Equipement de réglage de l'arrivée d'un ascenseur Download PDF

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Publication number
EP0294578B1
EP0294578B1 EP88106719A EP88106719A EP0294578B1 EP 0294578 B1 EP0294578 B1 EP 0294578B1 EP 88106719 A EP88106719 A EP 88106719A EP 88106719 A EP88106719 A EP 88106719A EP 0294578 B1 EP0294578 B1 EP 0294578B1
Authority
EP
European Patent Office
Prior art keywords
travel
phase
arrival
speed value
speed
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.)
Expired - Lifetime
Application number
EP88106719A
Other languages
German (de)
English (en)
Other versions
EP0294578A1 (fr
Inventor
Klaus-Jürgen Dipl.-Ing. Klingbeil
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 AT88106719T priority Critical patent/ATE65235T1/de
Publication of EP0294578A1 publication Critical patent/EP0294578A1/fr
Application granted granted Critical
Publication of EP0294578B1 publication Critical patent/EP0294578B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
    • B66B1/16—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for storing pulses controlling the movements of a single car or cage

Definitions

  • the invention relates to a drive-in control device for an elevator with a three-phase motor, which is coupled to a tachometer dynamo and whose speed can be regulated via an actuator during the run-in phase, a setpoint generator that can be switched on at the start of the run-in phase being provided, which has an integrator that has one of the tachometer dynamo The actual speed value generated is integrated and the output side is connected to a subtractor, which forms a path difference proportional to the speed setpoint from an actual path formed by the integrator and a path corresponding to the entry route.
  • a control device with a setpoint generator according to the generic term is known, for example, from CH-PS 550 736. If such control devices guaranteeing great stopping accuracy are used in elevators with three-phase motors, it is advantageous to let the phase of constant speed preceding the entrance run uncontrolled. The regulation during this phase could only consist of braking the motor to its lowest stationary speed with correspondingly high losses with every elevator load. However, difficulties arise during the transition from the unregulated to the regulated phase, since when the regulation for the entrance is used, there can be large differences between the load-dependent actual speed value and the suddenly occurring speed setpoint, which can be more or less hard impacts for the users of the elevator make it uncomfortably noticeable.
  • DE-OS 3 010 234 discloses a control device which is intended to avoid the disadvantage mentioned above.
  • a voltage-dependent cross-fader is provided, which influences the influence during a section of the driving diagram continuously changed by two independent control loops depending on the tachometer voltage.
  • One control loop controls the acceleration depending on the time, while the other control loop controls the speed depending on the path.
  • the b / t control At the beginning of the braking process, almost exclusively the b / t control is engaged.
  • their effectiveness is continuously reduced and that corresponding to the v / s control is increased, so that at the end of the braking phase the v / s control is practically exclusively engaged. This is to ensure a smooth transition when the braking phase begins and an exact entry on one floor.
  • the control device described above has a relatively complicated structure since, in addition to two b / t controllers and one v / s controller, there is also a cross-fader with at least five operational amplifiers.
  • the invention has for its object to provide a drive-in control device according to the preamble in which the difference between the actual speed and setpoint during the transition from an unregulated phase of travel to the controlled run-in phase does not come into effect and only one speed control loop is effective during the entire run-in phase .
  • the speed setpoint is adapted to the actual speed value by forming a factor from the actual speed value and an assigned nominal speed during the unregulated phase of the journey and storing it in a memory device during the braking phase.
  • Path-dependent speed setpoints are stored in a driving curve memory, which are multiplied by the factor and are supplied to a speed control loop as speed setpoints during the braking phase.
  • the advantages achieved by the invention are that when there is a transition from the unregulated phase of the journey to the regulated running-in phase, even with larger differences between the actual speed value and setpoint value, there are no impacts that impair driving comfort. Since this goal is achieved compared to the prior art with a setpoint generator improved by simple means and only one control loop, a simple, cost-saving solution to the problem mentioned at the outset results.
  • 1 denotes a three-phase motor, for example an asynchronous motor, which drives an elevator car 5 suspended on a conveyor cable 3 via a traction sheave 2 and balanced by a counterweight 4.
  • the asynchronous motor 1 is coupled to a tachometer dynamo 6, which generates a voltage proportional to the speed.
  • the elevator car 5 is guided in an elevator shaft 7, only one floor E n being shown.
  • With 8 is a magnetic switch attached to the elevator car 5, which interacts with switching magnets 9 arranged in the elevator shaft 7.
  • the switching magnets are arranged at a certain distance in front of the floors, corresponding to the entry path s o of the elevator car 5, and thus mark the point at which the brake is used.
  • the magnetic switch 8 is connected to an input of a brake application logic 10, which can be supplied with stop signals assigned to the upward or downward movement via further inputs.
  • the three-phase motor 1, the tachometer dynamo 6, a first subtractor 11, a first control amplifier 12, a second subtractor 13, a second control amplifier 14 and an actuator 15 form a speed control loop, which is subordinated to a current control loop for stabilization.
  • the first subtractor 11 is connected on the input side to a setpoint generator 16 and the tachometer dynamo 6. From a speed setpoint generated by the setpoint generator 16 and a speed actual value determined by the tachometer dynamo 6, the first subtractor 11 forms a speed control deviation ⁇ v, which is supplied to the second subtractor 13 via the first control amplifier 12 as a current setpoint.
  • the second subtractor 13 forms a current control deviation from the current setpoint and a current actual value of the three-phase motor 1, which is fed via the second control amplifier 14 to the actuator 15, which consists, for example, of thyristors controlled by adjusting the ignition angle.
  • the setpoint generator 16 has an integrator 17, which is connected on the input side to the tachometer dynamo 6 via a first contact 18.
  • the output of the integrator 17 is connected to an input of a further subtractor 19, the other input of which is supplied with a voltage corresponding to the entry path s o and the output of which is connected to the input of a driving curve memory 20 in which distance-dependent speed setpoints are stored.
  • 21 designates a divider, one input of which is connected via a second contact 22 to the tachometer dynamo 6 and the other input of which is connected to the output of the driving curve memory 20.
  • a memory device 23 is connected downstream of the divider 21 and is connected on the output side to an input of a multiplier 24, the other input of which is connected to the output of the driving curve memory 20.
  • the output of the multiplier 24 forms the output of the setpoint generator 16, which is connected to the first subtractor 11 of the speed control loop. 25 with a relay is referred to that with the output of the brake application logic 10 and a voltage source, not shown, is connected and actuates the first and second contacts 18, 22 when excited.
  • the drive-in control device is implemented by means of a microcomputer, the drive curve memory 20 and the memory device 23 are a fixed value or a read / write memory.
  • the entry control device described above works as follows:
  • the actual speed value v io depending on the elevator load, is smaller than the nominal speed value v so (time t o , FIG. 2).

Landscapes

  • Automation & Control Theory (AREA)
  • Engineering & Computer Science (AREA)
  • Elevator Control (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Types And Forms Of Lifts (AREA)
  • Harvester Elements (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Electric Motors In General (AREA)
  • Fluid-Damping Devices (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Braking Arrangements (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Paper (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Invalid Beds And Related Equipment (AREA)

Claims (2)

  1. Dispositif de régulation de l'arrivée d'un ascenseur, comportant un moteur à courant triphasé (1), qui est accouplé à une dynamo tachymétrique (6) et dont la vitesse de rotation est réglable au moyen d'un circuit de réglage (15) pendant la phase d'arrivée, et dans lequel il est prévu un générateur de valeurs de consigne (16), qui peut être activé au début de la phase d'arrivée et possède un intégrateur (17), qui intègre une valeur réelle de vitesse produite par la dynamo tachymétrique (6) et est relié, à sa sortie, à un soustracteur (19) lequel, à partir d'un trajet réel de déplacement formé par l'intégrateur (17) et d'un trajet de déplacement correspondant à la section d'arrivée, forme une différence de trajet de déplacement proportionnelle à la valeur de consigne de la vitesse,
    caractérisé par le fait
    - qu'il est prévu un diviseur (21), dont une entrée est raccordée à la dynamo tachymétrique (6) et dont l'autre entrée est raccordée à la sortie d'une mémoire de courbes de déplacement (20) dans laquelle des valeurs de consigne (vs) de la vitesse, qui dépendent du trajet de déplacement, sont mémorisées et dont l'entrée est reliée au soustracteur (19),
    - que le diviseur (21) forme un facteur (y), avant le début de la phase de freinage, à partir d'une valeur réelle (vio) de la vitesse et d'une valeur nominale (vso) de la vitesse,
    - qu'il est prévu un dispositif de mémoire (23), qui est relié à la sortie du diviseur (21) et dans lequel le facteur (y) est mémorisé pendant la phase d'arrivée, et
    - qu'il est prévu un multiplicateur (24), dont une entrée est raccordée à la sortie du dispositif de mémoire (23) et dont l'autre entrée est raccordée à la sortie de la mémoire de courbes de déplacement (20),
    - les valeurs de consigne (vs) de la vitesse, qui correspondent aux différences de trajet de déplacement fournies par le soustracteur (19) et sont mémorisées dans la mémoire de courbes de déplacement (20), étant multipliées par le facteur (y) et transmises à un circuit de régulation de la vitesse.
  2. Dispositif de régulation d'arrivée selon la revendication 1, caractérisé en ce que le dispositif de mémoire (23) est un circuit d'échantillonnage et de maintien.
EP88106719A 1987-06-12 1988-04-27 Equipement de réglage de l'arrivée d'un ascenseur Expired - Lifetime EP0294578B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106719T ATE65235T1 (de) 1987-06-12 1988-04-27 Einfahrregelungseinrichtung fuer einen aufzug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2210/87 1987-06-12
CH221087 1987-06-12

Publications (2)

Publication Number Publication Date
EP0294578A1 EP0294578A1 (fr) 1988-12-14
EP0294578B1 true EP0294578B1 (fr) 1991-07-17

Family

ID=4228453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106719A Expired - Lifetime EP0294578B1 (fr) 1987-06-12 1988-04-27 Equipement de réglage de l'arrivée d'un ascenseur

Country Status (20)

Country Link
US (1) US4844205A (fr)
EP (1) EP0294578B1 (fr)
JP (1) JP2548603B2 (fr)
CN (1) CN1010297B (fr)
AT (1) ATE65235T1 (fr)
AU (1) AU593447B2 (fr)
BR (1) BR8802834A (fr)
CA (1) CA1282194C (fr)
DE (1) DE3863696D1 (fr)
DK (1) DK165238C (fr)
ES (1) ES2024580B3 (fr)
FI (1) FI96300C (fr)
HK (1) HK63292A (fr)
HU (1) HU201492B (fr)
IN (1) IN171501B (fr)
MX (1) MX169657B (fr)
NO (1) NO171965C (fr)
PT (1) PT87664B (fr)
TR (1) TR24921A (fr)
ZA (1) ZA883771B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0796423B2 (ja) * 1989-07-18 1995-10-18 三菱電機株式会社 エレベータの制御装置
CN1049365C (zh) * 1993-07-01 2000-02-16 云浮硫铁矿企业集团公司自来水厂 一种钟罩式脉冲澄清池
JP3170151B2 (ja) * 1994-08-24 2001-05-28 株式会社東芝 エレベータの制御装置
DE20103158U1 (de) * 2001-02-22 2001-09-27 Mueller Wolfgang T Mehrstufiger, positionsgesteuerter, reaktionsschnell und präzise auslösender Geschwindigkeitsbegrenzer für Aufzüge
JP2006298645A (ja) * 2005-04-21 2006-11-02 Inventio Ag エレベータケージの速度を監視するための方法および検出システム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186184B (de) * 1961-06-24 1965-01-28 Siemens Ag Geschwindigkeits-Sollwertgeber fuer Treibscheibenfoerdermaschinen
CH550736A (de) * 1973-04-18 1974-06-28 Inventio Ag Einrichtung zur steuerung eines aufzuges.
FR2313300A1 (fr) * 1975-03-20 1976-12-31 Otis Ascinter Systeme de commande de moteur d'ascenseur
JPS6013948B2 (ja) * 1975-04-03 1985-04-10 株式会社明電舎 エレベ−タの着床位置制御装置
GB1524298A (en) * 1975-04-03 1978-09-13 Otis Elevator Japan Control apparatus for an elevator system
FR2338527A1 (fr) * 1976-01-15 1977-08-12 Duriez Jean Procede et dispositif de controle et de regulation de la vitesse d'un mobile
US4161235A (en) * 1978-05-19 1979-07-17 Westinghouse Electric Corp. Elevator system
US4373612A (en) * 1980-11-25 1983-02-15 Westinghouse Electric Corp. Elevator system
US4527662A (en) * 1983-04-01 1985-07-09 Otis Elevator Company Elevator speed control
FR2579189B1 (fr) * 1985-03-25 1988-04-08 Logilift Sarl Procede de commande regulee du ralentissement d'un mobile et dispositif de commande regulee pour la mise en oeuvre du procede
US4691807A (en) * 1986-03-05 1987-09-08 Mitsubishi Denki Kabushiki Kaisha Elevator control apparatus

Also Published As

Publication number Publication date
AU1756388A (en) 1988-12-15
EP0294578A1 (fr) 1988-12-14
NO882550L (no) 1988-12-13
FI882704A0 (fi) 1988-06-08
IN171501B (fr) 1992-10-31
DK316388D0 (da) 1988-06-10
JPS63310479A (ja) 1988-12-19
PT87664B (pt) 1993-09-30
DK165238C (da) 1993-03-08
AU593447B2 (en) 1990-02-08
FI882704A (fi) 1988-12-13
FI96300B (fi) 1996-02-29
ATE65235T1 (de) 1991-08-15
DE3863696D1 (de) 1991-08-22
TR24921A (tr) 1992-07-21
DK316388A (da) 1988-12-13
NO882550D0 (no) 1988-06-09
PT87664A (pt) 1989-05-31
FI96300C (fi) 1996-06-10
US4844205A (en) 1989-07-04
HU201492B (en) 1990-11-28
JP2548603B2 (ja) 1996-10-30
BR8802834A (pt) 1989-01-03
NO171965B (no) 1993-02-15
ES2024580B3 (es) 1992-03-01
DK165238B (da) 1992-10-26
CN1010297B (zh) 1990-11-07
HK63292A (en) 1992-08-28
CA1282194C (fr) 1991-03-26
ZA883771B (en) 1989-02-22
CN1031356A (zh) 1989-03-01
MX169657B (es) 1993-07-16
HUT50082A (en) 1989-12-28
NO171965C (no) 1993-05-26

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