EP2165960B1 - Ascenseur - Google Patents

Ascenseur Download PDF

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Publication number
EP2165960B1
EP2165960B1 EP08702998.9A EP08702998A EP2165960B1 EP 2165960 B1 EP2165960 B1 EP 2165960B1 EP 08702998 A EP08702998 A EP 08702998A EP 2165960 B1 EP2165960 B1 EP 2165960B1
Authority
EP
European Patent Office
Prior art keywords
car
door open
condition
running
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.)
Active
Application number
EP08702998.9A
Other languages
German (de)
English (en)
Other versions
EP2165960A4 (fr
EP2165960A1 (fr
Inventor
Rikio Kondo
Hiroshi Kigawa
Takaharu Ueda
Jun Hashimoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2165960A1 publication Critical patent/EP2165960A1/fr
Publication of EP2165960A4 publication Critical patent/EP2165960A4/fr
Application granted granted Critical
Publication of EP2165960B1 publication Critical patent/EP2165960B1/fr
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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
    • B66B1/24—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
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons

Definitions

  • Patent Document 1 Japanese Patent Laid-Open No. 7-206288
  • the present invention is made in order to solve the problem as described above, and an object of the present invention is to provide an elevator apparatus which can gently stop a car when the car is caused to make an emergency stop from a normal running condition, and can suddenly stop the car when the car is caused to make an emergency stop from a running condition with a door open, that is, a running condition during a releveling operation.
  • An elevator apparatus of the present invention is an elevator apparatus that comprises a car which ascends and descends in an elevator shaft, a braking device stopping the car at a time of landing of the car in a normal operation, a control instruction part causing the braking device to generate a braking force while controlling a deceleration of the car when causing the car which is normally running to make an emergency stop, door open and close condition detecting means detecting an open and close condition of a door, speed detecting means detecting a speed of the car, and a running with door open determining part changing control of a braking force of the braking device correspondingly to a condition of an elevator at a time of causing the car to make an emergency stop on the basis of a detection result of the door open and close condition detecting means and a detection result of the speed detecting means, and that is characterized in that the running with door open determining part causes the braking device to generate a braking force so that a stopping distance of the car becomes shorter than that in a case where a predetermined door
  • the car when the car is caused to make an emergency stop from a normal running condition, the car can be gently stopped, and when the car is caused to make an emergency stop from a running condition with a door open, that is, a running condition during a releveling operation, the car can be suddenly stopped.
  • Figure 1 is a general block diagram showing an elevator apparatus in First Embodiment
  • Figure 2 is a block diagram of an essential part showing the elevator apparatus in First Embodiment.
  • reference numeral 1 denotes a car which ascends and descends in an elevator shaft
  • reference numeral 2 denotes a counterweight which ascends and descends in the direction opposite from the car 1 in the shaft
  • reference numeral 3 denotes a main rope which suspends the car 1 and the counterweight 2 in a well bucket manner
  • reference numeral 4 denotes a traction machine for an elevator which drives the car 1 via the main rope 3.
  • the above described main rope 3 may be other suspending means such as a belt.
  • the above described brake controller 9 operates the braking device 7 on the basis of the instruction received from the controller 8 to brake the car 1.
  • the brake controller 9 refers to the condition of the car 1, and calculates the speed and deceleration which are required for gently stopping the car 1.
  • the brake controller 9 causes the braking device 7 to generate a braking force while controlling the deceleration so as to stop the car 1 gently on the basis of the calculation result. More specifically, when an electromagnetic brake is adopted as the braking device 7 as in the elevator apparatus shown in Figure 1 , the voltage which is applied to the brake coil 12 is controlled to regulate the magnitude of the force (braking force) for pressing the brake lining 11 against the brake wheel 10.
  • Figure 3 shows diagrams for explaining the operation of the elevator device in First Embodiment according to the present invention
  • Figure 3a shows the change with time of the car position at the time of causing the car which normally runs with the door closed to make an emergency stop
  • Figure 3b shows the change with time of the car speed at that time
  • Figure 3c shows the change with time of the car deceleration at that time.
  • C corresponds to the case where the braking force of the braking device 7 is controlled in the same condition as A and the car 1 is gently stopped
  • D corresponds to the case where the braking force of the braking device 7 is controlled in the same condition as B, and the car 1 is gently stopped.
  • the brake controller 9 includes a running with door open determining part 19 in addition to the above described control instruction part 13.
  • the running with door open determining part 19 is means for detecting that the car 1 is in a predetermined running condition with a door open, and when determining the above described predetermined running condition with the door open on the basis of the input signal and the like from the controller 8, the running with door opening determining part 19 outputs an instruction for suddenly stopping the car 1 to the control instruction part 13.
  • the running with door open determining part 19 causes the braking device 7 to generate a braking force so that the stopping distance of the car 1 becomes shorter than that in the above described case where the car 1 which normally runs is caused to make an emergency stop by detecting that the car 1 is in a predetermined running condition with the door open.
  • the door open and close detection sensor 22 may be installed at the car door, or may be installed at the hall door.
  • the hall door is installed in each elevator hall, and therefore, when the door open and close detection sensor 22 is installed at the hall door, it needs to be installed at the hall door of each floor.
  • the door open and close detection sensor 22 is installed at the car door, it only has to be installed in one spot, and therefore, it can be configured at low cost to provide the advantages of being excellent in installation easiness and maintainability.
  • the door open condition also can be determined by determining whether torque occurs so as to keep a door close condition, and determining that the door closes by detecting the change with time of the torque at the time of opening and closing operation of the door, from the change in current and voltage of the actuator which drives the door. Further, movement of the door is detected by referring to the encoder which controls the above described actuator and a resolver signal, and the door open condition can be determined.
  • the control instruction part 13 sets the target deceleration at a larger value than the case of the emergency stop in the running condition with the door closed, or cuts off the energization to the electromagnetic brake, so that a large braking force is generated.
  • the safety relay 24 may be configured to be opened in accordance with the instruction from the control instruction part 13 or the running with door open determining part 19 to cut off energization to the electromagnetic brake reliably.
  • the signals from the controller 8 include the signal corresponding to the determining signal of running with the door open
  • the predetermined running condition with the door open is determined from only the signal, and this can be reflected in transmission to the control instruction part 13 and the operation of the safety relay 24.
  • ⁇ (t) represents the acceleration of the car 1 with a time t as the argument
  • t1 represents a time at which a releveling operation starts
  • t2 represents a time at which the car speed becomes maximum after the running with door open determining part 19 outputs an emergency stop instruction
  • F mot is the maximum value of the force of the power of the traction machine 4, which accelerates the car 1 and the part relating to it
  • F nub is the maximum value of the force of the weight imbalance of the car 1 and the counterweight 2, which accelerates the car 1 and the part relating to it
  • F(t) represents the minimum value of the braking force by the brake with the time t as the argument.
  • the car 1 On the occasion of the emergency stop which is made for such a reason, if the method shown in Second Embodiment is applied, the car 1 is likely to run a long distance while it is in a door open condition according to circumstances. For example, when the speed of the car 1 when the door is deliberately opened by a passenger is the predetermined speed such as the running with door open upper limit speed V, or lower, the car 1 stops in a short stopping distance by the control for sudden stop being performed. Therefore, a problem does not especially occur.
  • the predetermined speed such as the running with door open upper limit speed V, or lower
  • the car 1 When the car 1 is excessively gently decelerated without a special limitation in the vicinity of the terminal floor, the car 1 enters the edge of the shaft, and the car 1 may be considered to stop by the safety device such as a buffer. Even in such a case, a problem does not especially occur to safety. However, in order not to operate the above described safety device, the stopping distance may be restrained from being long within the range from which the effect of gently stopping the car 1 can be obtained.
  • Figure 6 shows diagrams for explaining the operation of the elevator apparatus in Fourth Embodiment according to the present invention. Specifically, Figure 6a shows a change with time of the car position when the car 1 is caused to make an emergency stop, Figure 6b shows a change with time of the car speed at that time, and Figure 6c shows a change with time of a car deceleration at that time.
  • the target deceleration is set to be the value higher than the target deceleration in C.
  • the control instruction part 13 controls the braking device 7 so that the actual deceleration follows the set target deceleration in both of B and C. Accordingly, the speed change of the car 1 at the time of an emergency stop has a larger inclination (inclination in Figure 6b ) in the case of B than C, and the stopping distance of B naturally becomes shorter than the stopping distance of C.
  • Open and close control of the safety relay 24 is performed on the basis of the result of comparing the present speed of the car 1 detected by the speed detecting means and the speed shown in the above described boundary line 25. Specifically, the operation instruction is output to the safety relay 24 from the running with door open determining part 19 to close the safety relay 24 when the present speed of the car 1 is lower than the speed shown by the boundary line 25, and to open the safety relay 24 when the present speed of the car 1 is higher than the speed shown by the boundary line 25.
  • the boundary line 25 is in the condition in the case where the car 1 does not decelerate most as described above, and therefore, even if the car 1 which runs at the speed on the boundary line 25 is decelerated by the above described maximum braking force, the speed does not exceed the speed change line shown by B of Figure 2 .
  • D shows the condition quantity of the case where the car 1 is brought into the condition where the car 1 does not decelerate most in the elevator system at a point i of C (the point at which the speed of the car 1 exceeds the boundary line 25 in C).
  • the speed of the car 1 does not exceed B.
  • the boundary line 25 is determined as the relationship of each time and speed at which the speed does not exceed the speed of B when the speed change line corresponding to D is assumed from the predetermined speed on the boundary line 25 which corresponds to each time.
  • the shaded area 26 which is under the boundary line 25 can be taken to be large by setting each speed for each time on the line to be high. Thereby, the condition in which the braking force of the braking device 7 can be relieved by closing the safety relay 24 becomes large, and the deceleration reduction effect which is the original function can be exhibited well.
  • the above is the example of the case of shortening the stopping distance by setting the boundary line 25 so as not to exceed the speed in the case where the car 1 does not decelerate most when the braking device 7 is caused to generate the maximum braking force.
  • Figure 8 shows diagrams for explaining another operation at the time of limiting the stopping distance by controlling the safety relay at the time of an emergency stop.
  • Figure 8 shows an example of the open and close operation of the safety relay 24 which allows the stopping distance longer than the case where the car 1 does not decelerate most in the case 1, but prevents entry of the car 1 into the edge of the shaft by stopping the car 1 within the range of the predetermined distance.
  • the safety relay 24 is opened and closed with a boundary line 27 of Figure 8b as a reference.
  • Figure 8b shows the case where a shaded area 28 showing the speed area lower than the boundary line 27 shows a trapezoidal shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Control (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Claims (1)

  1. Ascenseur, comprenant :
    une cabine (1) qui monte et descend dans une cage d'ascenseur ;
    un dispositif de freinage (7) arrêtant la cabine (1) à un moment d'arrivée de la cabine (1) à un palier en fonctionnement normal ;
    une partie d'instruction de commande (13) amenant le dispositif de freinage (7) à générer une force de freinage tout en commandant une décélération de la cabine (1) lorsque la cabine (1) qui fonctionne normalement est amenée à effectuer un arrêt d'urgence ; et
    des moyens de détection d'état d'ouverture et de fermeture de porte détectant un état ouvert et fermé d'une porte,
    caractérisé en ce que l'ascenseur comprend en outre :
    des moyens de détection de vitesse détectant la vitesse de la cabine (1) ; et
    une partie de détermination de fonctionnement avec porte ouverte (19) changeant la commande d'une force de freinage du dispositif de freinage (7) en correspondance avec l'état d'un ascenseur à un moment où la cabine (1) est amenée à effectuer un arrêt d'urgence sur la base d'un résultat de détection des moyens de détection d'état d'ouverture et de fermeture de porte et d'un résultat de détection des moyens de détection de vitesse, dans lequel :
    la partie de détermination de fonctionnement avec porte ouverte (19) amène le dispositif de freinage (7) à générer une force de freinage de sorte que la distance d'arrêt de la cabine (1) devienne plus courte que dans le cas où un état d'ouverture de porte prédéterminé n'est pas déterminé lorsque l'état d'ouverture de porte prédéterminé est déterminé, et amène le dispositif de freinage (7) à générer une force de freinage de sorte que la distance d'arrêt de la cabine (1) devienne plus courte que dans le cas où l'état d'ouverture de porte prédéterminé est déterminé et que la vitesse de la cabine (1) dépasse une valeur prédéterminée lorsque l'état d'ouverture de porte prédéterminé est déterminé et que la vitesse de la cabine (1) est la valeur prédéterminée ou une valeur inférieure, dans lequel :
    une commande de frein (9) dans ce cas arrête la commande de la force de freinage pour amener le dispositif de freinage (7) à générer une force de freinage maximale, de sorte que la cabine (1) s'arrête avant que la force de freinage du dispositif de freinage (7) n'atteigne le maximum.
EP08702998.9A 2007-07-10 2008-01-09 Ascenseur Active EP2165960B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/063707 WO2009008058A1 (fr) 2007-07-10 2007-07-10 Ascenseur
PCT/JP2008/050127 WO2009008183A1 (fr) 2007-07-10 2008-01-09 Ascenseur

Publications (3)

Publication Number Publication Date
EP2165960A1 EP2165960A1 (fr) 2010-03-24
EP2165960A4 EP2165960A4 (fr) 2014-03-12
EP2165960B1 true EP2165960B1 (fr) 2016-04-13

Family

ID=40228255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08702998.9A Active EP2165960B1 (fr) 2007-07-10 2008-01-09 Ascenseur

Country Status (4)

Country Link
EP (1) EP2165960B1 (fr)
KR (1) KR101152565B1 (fr)
CN (1) CN101678996B (fr)
WO (2) WO2009008058A1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009154988A (ja) * 2007-12-25 2009-07-16 Toshiba Elevator Co Ltd エレベータの戸開走行防止システム
KR101233558B1 (ko) * 2008-12-05 2013-02-14 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
KR101235387B1 (ko) * 2009-02-20 2013-02-20 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
WO2010143282A1 (fr) * 2009-06-10 2010-12-16 三菱電機株式会社 Appareil élévateur
CN102459049A (zh) * 2009-06-22 2012-05-16 三菱电机株式会社 电梯装置
JP2011020788A (ja) * 2009-07-15 2011-02-03 Toshiba Elevator Co Ltd エレベータ制御装置
FI20090335A (fi) * 2009-09-16 2011-03-17 Kone Corp Menetelmä ja järjestely hissikorin hallitsemattoman liikkeen estämiseksi
EP2319791A1 (fr) * 2009-11-10 2011-05-11 Inventio AG Installation d'ascenseur
JP5556134B2 (ja) * 2009-11-13 2014-07-23 三菱電機株式会社 エレベータの戸開走行検出装置
EP2583928B1 (fr) * 2010-06-18 2021-02-24 Hitachi, Ltd. Système d'ascenseur
JP5525347B2 (ja) * 2010-06-28 2014-06-18 株式会社日立ビルシステム エレベータの戸開走行防止装置の点検方法ならびにエレベータ監視装置
DE102010062154A1 (de) * 2010-11-29 2012-05-31 Thyssenkrupp Aufzugswerke Gmbh Sicherheitseinrichtung für einen Aufzug
WO2012140720A1 (fr) * 2011-04-11 2012-10-18 三菱電機株式会社 Appareil d'ascenseur
JP5839875B2 (ja) * 2011-07-21 2016-01-06 三菱電機株式会社 エレベータの安全装置およびエレベータの安全装置に用いられる制動制御方法
DE102011054590B4 (de) * 2011-10-18 2022-06-09 Elgo-Electronic Gmbh & Co. Kg Vorrichtung zur Positionserfassung einer Aufzugkabine und Verfahren zum Betreiben einer Aufzuganlage
CN103420248B (zh) * 2013-08-21 2015-07-29 上海微频莱机电科技有限公司 关于电梯轿厢意外移动的安全防护装置
CN103420242B (zh) * 2013-08-21 2015-07-29 上海微频莱机电科技有限公司 防止电梯意外的安全装置
CN103420241B (zh) * 2013-08-21 2015-09-30 上海微频莱机电科技有限公司 防止电梯意外的安全防护装置
CN103420247B (zh) * 2013-08-21 2015-07-29 上海微频莱机电科技有限公司 关于电梯轿厢意外移动的安全装置
JP2015048215A (ja) * 2013-09-02 2015-03-16 東芝エレベータ株式会社 階間調整機能付きエレベータ
JP6403894B2 (ja) * 2015-08-21 2018-10-10 三菱電機株式会社 エレベータ装置
JP7050021B2 (ja) * 2019-03-15 2022-04-07 株式会社日立ビルシステム エレベーターの動作状態診断システム
EP3744672A1 (fr) * 2019-05-31 2020-12-02 Cedes AG Commande de courbe limite pour ascenseurs
DE102019212726A1 (de) * 2019-08-26 2021-03-04 Thyssenkrupp Elevator Innovation And Operations Ag Aufzugsanlage die einen Fahrkorb abhängig von einem Schließzustandssignal und einer Position des Fahrkorbs in einen Sicherheitsbetriebszustand überführt
EP4008664A1 (fr) * 2020-12-04 2022-06-08 Otis Elevator Company Procédé de prévention de saut de gravité au niveau d'un arrêt d'urgence dans des systèmes d'ascenseur
CN115123894A (zh) * 2021-03-26 2022-09-30 奥的斯电梯公司 电梯平稳制动控制方法和装置以及电梯制动器

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JPH0729746B2 (ja) * 1984-01-11 1995-04-05 株式会社日立製作所 エレベ−タ−の非常停止制御装置
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JPH04153174A (ja) * 1990-10-02 1992-05-26 Mitsubishi Electric Corp 斜行エレベータの制御装置
JPH07206288A (ja) 1994-01-14 1995-08-08 Toshiba Corp エレベーター
JP4267335B2 (ja) * 2003-01-30 2009-05-27 三菱電機株式会社 エレベータの制動制御装置
TW202208561A (zh) * 2016-12-12 2022-03-01 日商三菱化學股份有限公司 有機電致發光元件形成用組成物、有機電致發光元件及有機膜之製造方法

Also Published As

Publication number Publication date
CN101678996A (zh) 2010-03-24
WO2009008183A1 (fr) 2009-01-15
WO2009008058A1 (fr) 2009-01-15
EP2165960A4 (fr) 2014-03-12
KR101152565B1 (ko) 2012-06-01
CN101678996B (zh) 2013-08-28
EP2165960A1 (fr) 2010-03-24
KR20090128541A (ko) 2009-12-15

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