EP1401757B1 - Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur - Google Patents

Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur Download PDF

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Publication number
EP1401757B1
EP1401757B1 EP02732317A EP02732317A EP1401757B1 EP 1401757 B1 EP1401757 B1 EP 1401757B1 EP 02732317 A EP02732317 A EP 02732317A EP 02732317 A EP02732317 A EP 02732317A EP 1401757 B1 EP1401757 B1 EP 1401757B1
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EP
European Patent Office
Prior art keywords
speed
load receiving
elevator
receiving means
monitoring device
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EP02732317A
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German (de)
English (en)
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EP1401757B2 (fr
EP1401757A1 (fr
Inventor
Philipp Angts
Romeo Deplazes
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Inventio AG
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Inventio AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/44Means for stopping the cars, cages, or skips at predetermined levels and for taking account of disturbance factors, e.g. variation of load weight
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/24Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/285Control 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 invention relates to a method for preventing an impermissibly high travel speed of the load-receiving means of an elevator.
  • Conventional lifts are equipped with a safety gear which, if the travel speed of the load handling device exceeds a defined speed limit, is activated by a speed limiter and brakes and stops the load handling device with the maximum delay.
  • No. 6,170,614 B1 discloses an electronic speed limiting system which continuously receives information from a position-measuring device about the current position of the load-receiving device and calculates from it its current speed. This current speed is constantly compared by a microprocessor with fixed programmed limit values which are constant over the entire driving range and which are assigned to specific operating modes of the elevator, for example an ascending or descending run. If the current speed of the lifting device exceeds the currently active limit, the electronic speed limiting system activates an electromagnetically operated safety gear that stops the load handling device.
  • the electronic speed limit system described has significant disadvantages. Each detected exceeding of the active limit leads to the triggering of the safety gear and thus to an interruption of the operation of the elevator, wherein in most cases the passengers can not leave the elevator before a skilled person has put the elevator back in operation or has brought the load handling device in the area of access. Any over-speeding thus results in a braking of the load-handling device with deceleration values in the maximum permissible range, which is very unpleasant for the passengers, causing anxiety and even frail persons can cause injury.
  • the present invention has for its object to provide a method for preventing an inadmissibly high speed of the lifting device of an elevator, with the help of which in some cases of detected overspeed interruptions can be avoided, passengers never included in the elevator and only in the extreme emergency of Exposure to the strong deceleration to be suspended by a safety gear.
  • a specific braking measure is triggered by the speed monitoring device when a speed limit assigned to this particular braking measure is exceeded.
  • a further braking measure is triggered in each case if a preceding braking measure has not led to a defined speed reduction within a defined time.
  • a safety-relevant particularly advantageous development of the invention is achieved in that in each case a further braking action is triggered when a braking action associated with this speed limit is exceeded, or if a previous braking action has not led within a defined time to a defined speed reduction. Both criteria are monitored simultaneously, and a further braking action is activated if one of the two criteria is met.
  • a particularly advantageous embodiment of the method according to the invention results from the fact that one of the braking measures is that the speed monitoring device attempts to influence the speed control device in such a way that it reduces the drive speed of the load receiving means.
  • a particularly simple and expedient proves to be an embodiment of the method described above, in which the reduction of the drive speed of the load receiving means is to be achieved by applying a fixed stored speed setpoint to a setpoint input of the speed control device.
  • advantageous braking measures are that the speed monitoring device increasingly restricts the flow of a hydraulic medium via a separate flow valve or activates a friction brake acting on a piston rod of a hydraulic lifter, thereby reducing or reducing the travel speed of the lifting device to be shut down.
  • one of the braking measures is that a safety device is provided by the speed monitoring device is activated, which is attached to the load-carrying means and, when activated, acting on along the guideway permanently installed rails and the load handling device is stopped.
  • a particularly advantageous embodiment of the method according to the invention is that the speed limit values associated with the individual braking measures, with which the speed monitoring device continuously compares the current driving speed, are dependent on the current position of the load receiving means and include a reduction of the driving speed required in both end regions of the travel path. Moreover, these speed limits may also depend on a particular mode of operation (e.g., ramp travel, inspection, fault mode, etc.). This eliminates the need for conventional deceleration, control devices in both end regions of the travel path of the lifting device. In addition, so that the buffers that prevent in conventional lifts a hard impact of the lifting device at the lower and upper end of the track can be omitted or built much smaller, since the caused by the control delay of the lifting device is monitored safety relevant in the end of the route.
  • a particular mode of operation e.g., ramp travel, inspection, fault mode, etc.
  • the speed limit values assigned to the individual braking measures, with which the speed monitoring device continuously compares the current driving speed are defined and electronically defined, for example in tables, for each position of the load receiving means on its travel path, possibly in dependence on a currently activated special operating mode. saved.
  • the permanently stored position-dependent speed limits give the inventive method a high reliability.
  • a further advantageous refinement of the method results from the fact that the speed limit values associated with the individual braking measures, with which the speed monitoring device continuously compares the current driving speed, are continuously calculated in accordance with the current position of the load receiving means by a microprocessor integrated in the speed monitoring device.
  • An additional advantageous development of the invention consists in the elevator automatically resuming normal operation or an evacuation mode following a successful braking action triggered by overspeed, if the type of last braking measure and the results of an automatically performed functional check of the safety-relevant components permit this.
  • a particularly preferred embodiment of the method according to the invention is that all the functions involved in this method take place using fail-safe concepts.
  • Such concepts include, for example, redundant position and / or speed measuring devices, actuators for activating brake devices in fail-safe design, data backup data transfer methods, redundant data processing by several, possibly different processors with comparison of results, etc.
  • suitable safety measures are taken triggered.
  • Fig. 1A shows schematically an elevator system with cable drive.
  • An elevator shaft 1 with a machine room 2 and storey accesses 3 can be seen.
  • a drive unit 4 is arranged which carries and drives a lift cage (load-carrying means) 8 guided on guide rails 7 via a traction sheave 5 and carrying cables 6.
  • the drive unit 4 has a drive motor 9 with an electromechanical drive brake 10.
  • Direction of rotation, speed and drive torque of the drive motor 9 are controlled by a speed control device 14, wherein the speed control device receives control commands from an elevator control 15.
  • the speed control device receives control commands from an elevator control 15.
  • two electromagnetically activated safety gear 18 are mounted, with which the elevator car 8 can be braked and stopped in case of emergency.
  • Denoted at 20 is a scale extending over the entire travel path of the elevator car 8, which has a plurality of binary coded parallel code tracks. These code tracks are scanned by a position detection device 21 fixed to the elevator car 8, which continuously decodes the current absolute position of the elevator car 8 from the binary signal states and transmits these to the elevator control 15. By differentiating the position value differences over time, the current travel speed of the elevator car 8 is calculated in the elevator control 15, which serves, inter alia, as actual value feedback for the speed control device 14 of the drive motor 9.
  • a speed monitoring device 24 has the task of detecting an impermissibly high driving speed of the elevator car 8 and if necessary to initiate suitable countermeasures. Elevator control 15, speed control device 14 and speed monitoring device 24 are connected to each other according to FIG.
  • Fig. 1B shows schematically an elevator system with hydraulic drive.
  • an elevator shaft 1 with a machine room 2 and floor access 3.
  • a hydraulic drive unit 50 is arranged, which drives the piston rod 52 of a hydraulic jack 51, which has a deflection roller 53 at its upper end.
  • suspension cables 54 which are each secured with its one end to a fixed point 55 on the lifter 51 and carry with its other end an elevator car (load-carrying means) 8 and drive, which is guided on guide rails 7.
  • the drive unit 50 is equipped with a speed control device 14, which determines, for example via a variable displacement pump 56, the amount and direction of the oil flow which moves the hydraulic lifter 51, wherein the speed control device 14 receives control commands from an elevator control 15.
  • two electromagnetically activated safety gear 18 are mounted, with which the elevator car 8 can be braked and stopped in emergencies, for example in a suspension rope break.
  • an electromagnetically activatable, acting on the piston rod 52 clamp brake 58 is attached. From detail X it can be seen that between the caliper brake 58 and the piston rod 52, when the magnet 59 is de-energized, a braking force can be generated by the force of a compression spring 60. This braking force is able to brake the elevator car 8, for example, in the case of failure of the speed control of the hydraulic drive.
  • the magnet 59 is controlled by the speed monitor 24.
  • the hydraulic drive unit 50 has, among other valves on a safety flow valve 61 which can be activated by the speed monitor 24 at detected overspeed of the elevator car 8, the safety flow valve in such a case, the oil flow is continuously reduced so that the elevator car 8 with is decelerated defined delay.
  • Denoted at 20 is a scale extending over the entire travel path of the elevator car 8, which has a plurality of binary coded parallel code tracks. These code tracks are scanned by a position detection device 21 fixed to the elevator car 8, which continuously decodes the current absolute position of the elevator car 8 from the binary signal states and transmits these to the elevator control 15.
  • the current travel speed of the elevator car 8 is calculated in the elevator control 15, which serves, inter alia, as actual value feedback for the speed control device 14 of the drive motor 9.
  • a speed monitoring device 24 has the task of detecting an impermissibly high driving speed of the elevator car 8 and if necessary to initiate suitable countermeasures. Elevator control 15, speed control device 14 and speed monitoring device 24 are connected to each other according to FIG. 1B via signal and / or data lines, which does not exclude that these devices can be integrated together in a larger unit. The data and signal transmission between these devices on the one hand and the position detection device 21 and the safety gears 18 on the other hand takes place via a suspension cable 25 rolling down below the elevator car 8.
  • Fig. 2 shows a diagram, the vertical axis of the track (Position in the shaft) and its horizontal axis represent the traveling speed of the elevator car 8, which illustrates the relationship between the speed profile during normal driving and the speed limit values monitored by the speed monitor 24.
  • Entered are a curve with a normal driving speed curve 27 in a journey with intermediate stop and a speed limit curve 28, which also includes the mandatory in both Fahrweg end areas speed reduction.
  • the values of the speed limit curve 28 are in this embodiment for each position of the elevator car 8 in the elevator shaft 1 fixed in the speed monitoring device 24, for example in the form of a table, programmed.
  • a speed limit curve 28 or a plurality of different speed limit curves 28 associated with different braking actions are stored.
  • special operating modes eg ramp travel, inspection, fault mode, etc.
  • Fig. 3 shows a same diagram as Fig. 2, but with the speed limit curve 28 in the area between the track end areas additionally incorporating the speed course when stopping on intermediate storeys.
  • the limits for these ranges are continuously calculated in the speed monitor 24 based on speed setpoint information provided by the elevator controller 15.
  • speed limit curves with different permissible deviations can be used and, depending on possibly activated special operating modes (eg ramp travel), Inspection, fault mode etc), also run differently, but this is not shown here.
  • FIG. 4 and 5 show in the way / speed diagram the sequence of the inventive method with only a single speed limit curve.
  • Fig. 4 at 27 (for comparison) a curve with a normal driving speed course and at 28 the speed limit curve is shown.
  • a registered actual speed 29 runs in such a way that it exceeds the speed limit curve 28 outside of the travel end regions at curve point 30.
  • the speed monitoring device 24.1 recognizes this and activates a first braking measure, ie in the present example it tries to cause the speed control device 14 to reduce the drive speed with a predefined delay in accordance with the controller brake curve 33.
  • This first braking measure does not necessarily lead to the standstill of the elevator.
  • the elevator can continue its travel as scheduled. After a defined short time, which is measured from the moment of activation of the first braking measure, checks the speed monitor 24.1, if the speed limit curve 28 is still exceeded, and optionally activates (at curve point 31) a second braking action (the mechanical drive brake 10 on the drive motor 9 in Fig. 1A or acting on the piston rod 52 pliers brake 58 in Fig. 1B), whereby the elevator according to the drive brake curve 34 is to be braked.
  • a second braking action the mechanical drive brake 10 on the drive motor 9 in Fig. 1A or acting on the piston rod 52 pliers brake 58 in Fig. 1B
  • the speed monitoring device 24.1 recognizes that the speed limit curve has expired after another short waiting time has elapsed 28 is still exceeded, it triggers (at curve point 32) according to this embodiment last braking action, ie it activates the electromagnetic triggering device 18, which stops the elevator according to the safety brake curve 35.
  • Fig. 5 is shown in the way / speed diagram, as it comes in the inventive method with a single speed limit curve 28 for triggering braking measures when the actual speed 29 of the elevator, without exceeding the rated speed, in a guideway -End Scheme or floor stop area exceeds the falling speed limit curve 28 here, because, for example, the required here reduction of the actual speed does not occur.
  • FIG. 6 schematically shows an electronic speed monitoring device 24.1 according to the invention, as used for the method with a single speed limit curve 28. It consists essentially of a limit value module 38, a comparator 39 and a reaction generator 40.1 with a timer 44.
  • the speed monitoring device 24.1 receives on the one hand via its position data input 41 continuously generated by the position detection device 21 information about the current position of the elevator car 8 in the elevator shaft. On the other hand, it receives via its actual speed input 42 from the elevator control 15 information about the current actual speed of the elevator. From a table stored in the limit value module 38, the speed limit values assigned to each shaft position are continuously updated read out and compared in the comparator 39 with the current actual speed.
  • the comparator 39 determines that the current actual speed exceeds the position-dependent defined current speed limit, it sends a corresponding overspeed signal to the reaction generator 40.1.
  • This activates via one of its brake signal outputs 43.1, 43.2, 43.3 immediately the first braking measure, ie, to a setpoint input of the speed control device 14 is a fixed speed setpoint or a permanently stored delay setpoint applied.
  • the timer 44 is started with an adjustable waiting time. If the overspeed signal is still pending after the waiting time has expired, the reaction generator 40.1 activates the next following braking action and restarts the timer 44. If the speed limit value is exceeded even after the second waiting time has elapsed, a last braking measure or the safety gear is activated ,
  • the speed limit value 28 supplied to the comparator 39 by the limit value module 38 does not always correspond to the position-dependent speed limit values permanently stored in the tables of the limit value module, but the stored speed limit values are in the areas where the elevator control 15 predetermines a reduced speed setpoint, continuously adapted by a processor integrated in the limit value module 38 to these reduced setpoint values. This happens especially when stopping on a floor.
  • the required information from the elevator control 15 receives the limit value module via a data line 45.
  • inventive method can also be applied to elevator systems with more than three different braking measures.
  • FIGS. 7 and 8 show in the path / speed diagram the sequence of the method according to the invention with a plurality of different speed limit curves 28, which are respectively assigned to different braking measures.
  • the chart for comparison again includes a curve 27 representing a normal vehicle speed profile.
  • three speed limit curves 28 are entered.
  • An assumed actual speed 29 is such that it exceeds the first speed limit curve 28.1 above the nominal speed and outside a track end area or a floor stop area at curve point 46.
  • the speed monitoring device 24.2 recognizes this and activates a first braking action, ie, in the present example it tries to cause the speed control device 14 to reduce the drive speed with a predefined delay in accordance with the regulator brake curve 33.
  • this first braking measure does not necessarily lead to the standstill of the elevator. If the second speed limit curve 28.2 is not also exceeded and the system test device integrated in the elevator control 15 does not report a relevant error, the elevator can continue its travel according to the program. However, if the first braking measure is not or not sufficiently effective, so that the second speed limit curve 28.2 is exceeded, the speed monitoring device 24.2 activates a second braking measure at curve point 47 (the mechanical drive brake 10 on the drive motor 9 in FIG. 1A or on the piston rod 52 acting clamp brake 58 in Fig. 1B), whereby the elevator according to the drive brake curve 34 is to be braked to a standstill.
  • a second braking measure at curve point 47 the mechanical drive brake 10 on the drive motor 9 in FIG. 1A or on the piston rod 52 acting clamp brake 58 in Fig. 1B
  • the speed monitoring device 24.2 triggers the last braking action according to this exemplary embodiment at curve point 48, ie activates the electromagnetically triggered safety gear 18, which stops the elevator according to the safety brake curve 35.
  • Fig. 8 is shown in the way / speed diagram, as it comes in the inventive method with multiple speed limit curves 28.1, 28.2, 28.3 for triggering braking measures when an assumed actual speed 29 of the elevator, without exceeding the rated speed , one or more of the falling speed limit curves 28.1, 28.2, 28.3 in a track end area or floor stop area, because, for example, the required reduction of the actual speed does not occur here.
  • It essentially consists of the same modules as the speed monitoring device 24.1 described above in connection with FIG. 6, but with one threshold module and one comparator per each of the speed limit curves 28.1, 28.2, 28.3 to be monitored. It therefore contains three limit modules 38.1, 38.2, 38.3 and three comparators 39.1, 39.2, 39.3 and a common reaction generator 40.2.
  • the speed monitoring device 24.2 via its actual speed input 42, the speed monitoring device 24.2 continually receives the information about the current position of the elevator car 8 in the elevator shaft 1 generated by the position detection device 21.
  • each of the three limit value modules 38.1, 38.2, 38.3, position-dependent speed limit values are stored in a respective table, the values contained in each of the tables representing one of the three speed limit value curves 28.1, 28.2, 28.3 described with reference to FIGS. ie, each of the tables is assigned to one of the three different braking measures and contains for each position of the elevator in the shaft one of these braking measures associated speed limit.
  • the speed limit values for the three different braking measures corresponding to the current shaft position of the elevator car are continuously read from each of the three tables stored in the limit module 38.1, 38.2, 38.3, and in the comparators 39.1 assigned to each of the limit module 38.1, 38.2, 38.3. 39.2, 39.3 compared with the current actual speed.
  • the comparators 39.1, 39.2, 39.3 ascertains that the current actual speed exceeds the position-dependent speed limit value stored in the respectively associated table, it sends an overspeed signal to the reaction generator 40.2. This activates via one of its brake signal outputs 43.1, 43.2, 43.3 immediately that of the three possible braking measures that the signal-giving Comparator and the corresponding limit value module is assigned.
  • the speed limit values supplied by the three limit value modules 38.1, 38.2, 38.3 to the comparators 39.1, 39.2, 39.3 do not always correspond
  • the stored speed limit values are stored in the travel path areas, where the elevator control 15 prescribes a reduced speed setpoint, by processors in the limit value modules 38.1, 38.2, 38.3 of these reduced setpoint values, instead of the position-dependent speed limit values permanently stored in the tables of the limit module continuously adjusted. This happens especially when stopping on a floor.
  • the information required for this purpose by the elevator control 15 is received by the limit value modules 38.1, 38.2, 38.3 via a data line 45.
  • a speed monitoring method that meets particularly high safety requirements can be realized by combining the time-dependent reaction control method of FIGS. 4, 5, 6 with the method having a plurality of different speed limit curves 28 of FIGS. 7, 8, 9, respectively a further braking action is triggered if the previous braking action has not led to a defined speed reduction within a defined time, or if one of these further braking action assigned position-dependent speed limit is exceeded.
  • the important for the inventive method circuits in the event of a breakdown are fed by suitable emergency power supplies, for example by means of batteries or capacitors.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Lasers (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (15)

  1. Procédé pour empêcher une vitesse trop élevée du moyen de suspension de charge (8) d'un ascenseur,
    selon lequel grâce à au moins un système de mesure (20, 21) prévu dans la zone de tout le trajet du moyen de suspension de charge (8), des informations sur la position actuelle et la vitesse de celui-ci sont fournies à un dispositif de surveillance de vitesse (24.1 ; 24.2),
    grâce à ce dispositif de surveillance de vitesse (24.1 ; 24.2), la vitesse actuelle est comparée en permanence à une valeur limite de vitesse (28 ; 28.1, 28.2, 28.3), et si la vitesse du moyen de suspension de charge (8) dépasse une valeur limite de vitesse ((28 ; 28.1, 28.2, 28.3), des mesures de freinage sont activées,
    caractérisé en ce que grâce au dispositif de surveillance de vitesse (24.1 ; 24.2), au moins trois mesures de freinage différentes peuvent être déclenchées successivement.
  2. Procédé selon la revendication 1, caractérisé en ce que chacune de ces mesures de freinage est déclenchée si une valeur limite de vitesse (28 ; 28.1, 28.2, 28.3) qui lui est affectée est dépassée.
  3. Procédé selon la revendication 1, caractérisé en ce qu'une mesure de freinage supplémentaire est déclenchée si une mesure de freinage précédente n'a pas entraîné en l'espace d'une durée définie une réduction de vitesse définie.
  4. Procédé selon la revendication 1, caractérisé en ce qu'une mesure de freinage supplémentaire est déclenchée si une valeur limite de vitesse (28.1, 28.2, 28.3) qui lui est affectée est dépassée ou si une mesure de freinage précédente n'a pas entraîné en l'espace d'une durée définie une réduction de vitesse définie.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que dans le cas d'un ascenseur qui comporte une unité d'entraînement (4) pour le moyen de suspension de charge (8) avec un régulateur de vitesse (14), une mesure de freinage réside dans le fait que le dispositif de surveillance de vitesse essaie d'influer sur le régulateur de vitesse (14) de l'unité d'entraînement (4) de manière à ce que le régulateur de vitesse réduise la vitesse d'entraînement du moyen de suspension de charge (8).
  6. Procédé selon la revendication 5, caractérisé en ce que la réduction de la vitesse d'entraînement du moyen de suspension de charge (8) doit être obtenue grâce au fait qu'une valeur théorique de vitesse ou une valeur théorique de décélération mises en mémoire définitivement sont appliquées à une entrée de valeur théorique du régulateur de vitesse (14).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que dans le cas d'un ascenseur entraîné par câble comprenant un moteur d'entraînement (4), une poulie motrice (5) et un câble porteur (6), une mesure de freinage supplémentaire réside dans le fait que grâce au dispositif de surveillance de vitesse (24 ; 24.1 ; 24.2), un frein à friction (10) qui agit directement ou indirectement sur la poulie motrice (5) ou qui agit directement sur le câble porteur (6) est activé.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que dans le cas d'un ascenseur avec un moyen de suspension de charge (8) guidé sur des rails de guidage (7), une mesure de freinage supplémentaire réside dans le fait que grâce au dispositif de surveillance de vitesse (24 ; 24.1 ; 24.2), des freins à friction qui agissent entre le moyen de suspension (8) et les rails de guidage (7) de celui-ci sont activés.
  9. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que dans le cas d'un ascenseur à entraînement hydraulique, une mesure de freinage supplémentaire réside dans le fait que grâce au dispositif de surveillance de vitesse (24), par l'intermédiaire d'un régulateur de débit (61), le débit d'un agent hydraulique qui définit le mouvement d'un vérin hydraulique (51) est de plus en plus limité, ou que grâce au dispositif de surveillance de vitesse (24), un frein à friction (58) qui agit sur une tige de piston (52) d'un vérin hydraulique (51) est activé.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce qu'une mesure de freinage réside dans le fait que le dispositif de surveillance de vitesse (24, 24.1 ; 24.2) active au moins un parachute (18) qui est monté sur le moyen de suspension de charge (8), qui agit sur des rails (7) installés, fixes, le long du trajet et qui immobilise le moyen de suspension de charge (8).
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que les valeurs limites de vitesse (28 ; 28.1, 28.2, 28.3) qui sont affectées aux mesures de freinage et auxquelles la vitesse actuelle (29) est comparée de manière continue par le dispositif de surveillance de vitesse (24, 24.1 ; 24.2) sont fonction de la position actuelle du moyen de suspension de charge (8) et contiennent une réduction de la vitesse qui est nécessaire dans les deux zones d'extrémité du trajet.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que les valeurs limites de vitesse (28 ; 28.1, 28.2, 28.3) qui sont affectées aux mesures de freinage et auxquelles le dispositif de surveillance de vitesse (24, 24.1 ; 24.2) compare de manière continue la vitesse actuelle (29) sont définies et mises en mémoire de manière fixe pour chaque position du moyen de suspension de charge (8) sur son trajet.
  13. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que les valeurs limites de vitesse (28 ; 28.1, 28.2, 28.3) qui sont affectées aux mesures de freinage et auxquelles le dispositif de surveillance de vitesse (24, 24.1 ; 24.2) compare de manière continue la vitesse actuelle sont calculées de manière continue par un microprocesseur, suivant la position actuelle du moyen de suspension de charge (8), en intégrant les valeurs limites de vitesse (28) programmées définitivement ainsi que des informations qui proviennent de la commande d'ascenseur (15) et qui portent sur le déroulement de trajet (45) prévu.
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que l'ascenseur, après une mesure de freinage réussie déclenchée par une vitesse excessive, reprend automatiquement son fonctionnement normal ou adopte un fonctionnement d'évacuation dans la mesure où le type de la dernière mesure de freinage et les résultats d'un contrôle de fonctionnement effectué automatiquement sur les éléments importants pour la sécurité l'autorisent.
  15. Procédé selon l'une des revendications 1 à 14, caractérisé en ce que pour détecter la position et la vitesse du moyen de suspension de charge, comparer la vitesse aux valeurs limites de vitesse et activer les mesures de freinage, on applique un concept de sécurité intégrée étendu.
EP02732317A 2001-07-04 2002-06-27 Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur Expired - Lifetime EP1401757B2 (fr)

Priority Applications (1)

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EP02732317A EP1401757B2 (fr) 2001-07-04 2002-06-27 Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01810654 2001-07-04
EP01810654 2001-07-04
PCT/CH2002/000350 WO2003004397A1 (fr) 2001-07-04 2002-06-27 Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur
EP02732317A EP1401757B2 (fr) 2001-07-04 2002-06-27 Procede pour empecher une vitesse inacceptablement elevee du moyen de suspension de charge d'un ascenseur

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EP1401757A1 EP1401757A1 (fr) 2004-03-31
EP1401757B1 true EP1401757B1 (fr) 2006-12-20
EP1401757B2 EP1401757B2 (fr) 2011-07-13

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US (1) US7117979B2 (fr)
EP (1) EP1401757B2 (fr)
JP (2) JP2005515134A (fr)
CN (1) CN1308213C (fr)
AT (1) ATE348779T1 (fr)
BR (1) BR0210750B1 (fr)
CA (1) CA2448538C (fr)
DE (1) DE50209017D1 (fr)
DK (1) DK1401757T4 (fr)
ES (1) ES2278027T5 (fr)
HK (1) HK1065014A1 (fr)
PT (1) PT1401757E (fr)
WO (1) WO2003004397A1 (fr)

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Publication number Publication date
EP1401757B2 (fr) 2011-07-13
CA2448538C (fr) 2010-06-01
BR0210750B1 (pt) 2012-12-11
CA2448538A1 (fr) 2003-01-16
BR0210750A (pt) 2004-07-20
WO2003004397A1 (fr) 2003-01-16
ES2278027T5 (es) 2011-12-05
US7117979B2 (en) 2006-10-10
PT1401757E (pt) 2007-02-28
HK1065014A1 (en) 2005-02-08
ATE348779T1 (de) 2007-01-15
CN1308213C (zh) 2007-04-04
DE50209017D1 (de) 2007-02-01
CN1524057A (zh) 2004-08-25
US20040173413A1 (en) 2004-09-09
DK1401757T3 (da) 2007-04-10
JP2009215082A (ja) 2009-09-24
EP1401757A1 (fr) 2004-03-31
DK1401757T4 (da) 2011-10-24
JP2005515134A (ja) 2005-05-26
ES2278027T3 (es) 2007-08-01

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