EP1198405A1 - Method for regulating the brake(s) of an escalator or a moving walkway - Google Patents

Method for regulating the brake(s) of an escalator or a moving walkway

Info

Publication number
EP1198405A1
EP1198405A1 EP00951363A EP00951363A EP1198405A1 EP 1198405 A1 EP1198405 A1 EP 1198405A1 EP 00951363 A EP00951363 A EP 00951363A EP 00951363 A EP00951363 A EP 00951363A EP 1198405 A1 EP1198405 A1 EP 1198405A1
Authority
EP
European Patent Office
Prior art keywords
brake
escalator
controller
setpoint
values
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
EP00951363A
Other languages
German (de)
French (fr)
Other versions
EP1198405B1 (en
Inventor
Ludwig Balzer-Apke
Dirk Lange
Sascha Neumann
Alexander Pietz
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.)
Kone Corp
Original Assignee
Kone 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 Kone Corp filed Critical Kone Corp
Publication of EP1198405A1 publication Critical patent/EP1198405A1/en
Application granted granted Critical
Publication of EP1198405B1 publication Critical patent/EP1198405B1/en
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
    • B66B25/00—Control of escalators or moving walkways
    • 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

Definitions

  • the invention relates to a method for controlling the brake (s) of an escalator or moving walk.
  • a disadvantage of the known brake is that the braking takes place partly depending on the load, no equal braking distances - as dependent on the load - can be maintained and that certain design dimensions (e.g. excess length of moving walkways) require such large flywheels that there are technical limits here achieved for accommodation become.
  • certain design dimensions e.g. excess length of moving walkways
  • higher wear of the brake pads must be expected, which results in a continuous readjustment of the mechanical brakes for safety reasons.
  • DE-A-35 09 207 shows a method and a device for braking passenger conveyors, for example an escalator, in which the movement of the escalator is braked in a controlled manner essentially independently of the load and the direction of movement of the escalator.
  • the deceleration event is continuously monitored and controlled with a signal which is supplied by a speed converter, for example a tachometer generator.
  • Direct current is supplied to the windings of an AC motor serving as a drive motor, the electrodynamic braking effect generated in the motor causing a predetermined deceleration behavior in the movement of the escalator.
  • the windings of the drive motor are preferably supplied with a pulsating DC voltage which is shaped and controlled by means of a thyristor circuit which is controlled by electronic components which are used for the escalator on the basis of those of a speed converter, e.g. a tachometer, delivered speed of the escalator forms a reference speed value.
  • a speed converter e.g. a tachometer
  • frequency converters have also been used to brake passenger conveyors, in particular escalators and moving walks, which may make mechanical brakes largely unnecessary as service brakes.
  • the frequency converters are components that involve increased costs and may therefore not be desired by the customer.
  • the object of the invention is to develop a method for regulating the brake (s) of an escalator or a moving walk in such a way that a control scheme is formed which is independent of frequency converters and which if necessary, can also be integrated into existing systems without requiring any special assembly and cost expenditure.
  • This goal is achieved by a method for load-independent control of the brake (s) of an escalator or an escalator, by supplying actual values to at least one controller containing at least one setpoint, the controller carrying out a target-actual comparison discontinuously and using these values at least one brake magnet controls, which in turn acts on the brake (s) in such a way that a predeterminable linear braking deceleration is set, in particular several temporary deceleration values being stored in the controller as setpoints in setpoint fields or setpoint ranges.
  • a brake device operating according to the method according to the invention includes at least one, in particular spring-loaded brake, e.g. a shoe brake which can be controlled via at least one brake magnet which can be controlled by at least one controller which carries out a discontinuous setpoint / actual value comparison.
  • spring-loaded brake e.g. a shoe brake which can be controlled via at least one brake magnet which can be controlled by at least one controller which carries out a discontinuous setpoint / actual value comparison.
  • the subject of the invention thus enables a preferably closed control loop, which can also be retrofitted to existing plants, and which can be integrated into new plants on the one hand and into existing plants on the other without major expense and assembly costs.
  • the speed of the escalator or moving walk can thus be reduced to a value of 0 m / s in a substantially constant deceleration.
  • a braking ramp is activated, whereby braking can be carried out with a uniform and linear deceleration, in compliance with the braking distance required in the corresponding guidelines.
  • the controller contains, as setpoint (s), deceleration values which are discontinuously preferably compared with speed values of the drive motor of the escalator or the moving walkway.
  • the brake magnet can be controlled independently of the energy supply of the drive motor. This does, however, require somewhat more effort, since an independent power supply must be provided; For special applications, especially from a safety point of view, however, this area of application is regarded as a further alternative in order to further develop the subject of the invention in a meaningful way.
  • the subject of the invention is applicable to all types of brakes used in escalators and moving walks. However, it should preferably be used on shoe brakes provided with spring-loaded brake levers.
  • the subject matter of the invention is illustrated in the drawing using an exemplary embodiment and is described as follows.
  • Figure 1 partial representation of the braking device, for example an escalator
  • Figure 2 braking device according to Figure 1 including actual value speed detection
  • FIG. 3 functional diagram of the control method according to the invention of the braking device according to FIGS. 1 and 2.
  • Figure 1 shows a partial view of the brake 1 of an escalator, not shown.
  • a brake drum 2, a brake lever 3, a spring assembly 4, a holder 5 and a brake magnet 6 can be seen, which in this example is operated with direct current.
  • FIG. 1 shows the same components as already described. The following components can also be seen: the housing 7 of the drive motor 8 and sensors 9 (e.g. proximity switch initiators) for tapping the speed of the drive motor 8.
  • sensors 9 e.g. proximity switch initiators
  • the shoe brake 10 arranged on the brake lever 3 is released, ie does not rest on the drive motor 8 designed as a brake drum.
  • the spring 4 would press the brake lever 3 onto the brake drum forming the drive motor 8 and thus generate a braking torque.
  • the brake lever 3 is pressed onto the brake drum and brings the step belt to a standstill.
  • Such mechanically acting braking devices 1 are part of the prior art, and any other, possibly non-mechanical, brake can also be used.
  • FIG 3 shows a schematic diagram of a control scheme for the braking device 1 according to Figures 1 and 2.
  • the reference numeral 1 the energy supply is addressed.
  • the reference number 12 relates to a controller and the reference number 13 to a brake magnet.
  • the electric motor 8 is also indicated, as are the brake levers 3 and the speed sensors 9.
  • the controller 12 preferably stores a plurality of setpoint values with respect to possible deceleration ramps.
  • a discontinuous determination of the respective speed of the drive motor 8 is effected via the speed sensors 9 and made available to the controller 12 as an actual value.
  • a discontinuous target-actual comparison is carried out, the results of which are made available to the brake magnet 13 as control values, so that the brake magnet 3 can in turn have a regulating effect.

Abstract

The invention relates to a method for regulating the brake(s) of an escalator or moving walkway, independently of the load. According to the invention, actual values (I) are supplied to at least one regulator which contains at least one theoretical value (S), the regulator intermittently performs a comparison between the theoretical and actual values and controls at least one brake magnet using these values. The brake magnet or magnets in turn regulate(s) the brake(s) in such a way, that a predeterminable linear braking deceleration can be achieved, whereby theoretical values (S), in particular, in the form of several temporary deceleration values are stored in the regulator in theoretical value fields or theoretical value zones.

Description

Verfahren zur Regelung der Bremse(n) einer Rolltreppe oder eines Rollsteiges Method for controlling the brake (s) of an escalator or moving walk
Die Erfindung betrifft ein Verfahren zur Regelung der Bremse(n) einer einer Rolltreppe oder eines Rollsteiges.The invention relates to a method for controlling the brake (s) of an escalator or moving walk.
Zum Abbremsen des Stufen- bzw. Palettenbandes einer Rolltreppe bzw. eines Rollsteiges beim Ansprechen von Sicherheitselementen werden bisher im wesentlichen mechanisch oder elektromechanisch betätigbare Bremsen, insbesondere Backenbremsen, eingesetzt. Diese sind in der Regel federbelastet, wobei die Wirkung der Feder über eine Magnetspule aufgehoben wird, so daß die Bremse im Betriebszustand geöffnet bleibt. Beim Anhalten der Rolltreppe bzw. des Rollsteiges wird die Wirkung des Elektromagneten aufgehoben und dadurch die dann überwiegende Federkraft zum Einsatz gebracht. Üblicherweise sind die Bremsfläche und die Schwungmasse unabhängig voneinander angeordnet, bilden aber in der Regel ein zusammenhängendes System in Form einer Bremstrommel. Die Schwungmasse bewirkt, daß der Bremsweg innerhalb der vorgegebenen Grenzen eingehalten werden kann. Wesentliches Kriterium bei der Auslegung der Schwungmasse ist die Belastung durch die Personenanzahl und bei Rollsteigen im wesentlichen die Länge in Verbindung mit der darauf befindlichen Personenlast.To brake the step or pallet belt of an escalator or a moving walkway when safety elements are actuated, mechanically or electromechanically actuable brakes, in particular shoe brakes, have been used to date. These are usually spring-loaded, the effect of the spring being canceled by means of a magnetic coil, so that the brake remains open in the operating state. When the escalator or escalator stops, the effect of the electromagnet is canceled and the predominant spring force is then used. The braking surface and the flywheel are usually arranged independently of one another, but usually form a coherent system in the form of a brake drum. The flywheel causes the braking distance to be maintained within the specified limits. An essential criterion in the design of the flywheel mass is the load from the number of people and, in the case of moving walkways, essentially the length in connection with the person load on it.
Bei Betätigung der Nothalteeinrichtung sowie bei Ansprechen von Sicherheitsschaltern und anderen Sicherheitseinrichtungen wird die Antriebseinheit von der Energieversorgung getrennt. Gleichzeitig erfolgt das Auslösen der Bremse.When the emergency stop device is actuated and safety switches and other safety devices respond, the drive unit is disconnected from the power supply. The brake is released at the same time.
Nachteilig bei der bekannten Bremse ist festzustellen, daß die Abbremsung teilweise lastabhängig erfolgt, keine gleichen Bremswege - da abhängig von der Last - einhaltbar sind und, daß bei bestimmten konstruktiven Gegebenheiten (z.B. Überlänge von Rollsteigen) derart große Schwungmassen erforderlich sind, daß hier technische Grenzen für die Unterbringung erreicht werden. Darüber hinaus muß mit einem höheren Verschleiß der Bremsbeläge gerechnet werden, wodurch sich aus Sicherheitsgründen eine kontinuierliche Nachstellung der mechanischen Bremsen ergibt.A disadvantage of the known brake is that the braking takes place partly depending on the load, no equal braking distances - as dependent on the load - can be maintained and that certain design dimensions (e.g. excess length of moving walkways) require such large flywheels that there are technical limits here achieved for accommodation become. In addition, higher wear of the brake pads must be expected, which results in a continuous readjustment of the mechanical brakes for safety reasons.
Der DE-A-35 09 207 sind ein Verfahren und eine Vorrichtung zum Bremsen von Personengleitförderern, beispielsweise einer Rolltreppe, zu entnehmen, bei dem die Bewegung der Rolltreppe im wesentlichen unabhängig von der Belastung und der Bewegungsrichtung der Rolltreppe auf gesteuerte Weise abgebremst wird. Das Verlangsamungsereignis wird kontinuierlich mit einem Signal überwacht und gesteuert, welches ein Geschwindigkeitswandler, beispielsweise ein Tachometergenerator, liefert. Den Wicklungen eines als Antriebsmotor dienenden Wechselstrommotors wird Gleichstrom zugeführt, wobei die im Motor erzeugte elektrodynamische Bremswirkung in der Bewegung der Rolltreppe ein vorherbestimmtes Verlangsamungsverhalten hervorruft. Den Wicklungen des Antriebsmotors wird im Bremsfall vorzugsweise eine pulsierende Gleichspannung zugeführt, die mittels einer Thyristorschaltung geformt und gesteuert wird, welche durch elektronische Bauelemente gesteuert wird, die für die Rolltreppe auf der Basis der von einem Geschwindigkeitswandler, z.B. einem Tachometer, gelieferten Geschwindigkeit der Rolltreppe einen Bezugsgeschwindigkeitswert bildet.DE-A-35 09 207 shows a method and a device for braking passenger conveyors, for example an escalator, in which the movement of the escalator is braked in a controlled manner essentially independently of the load and the direction of movement of the escalator. The deceleration event is continuously monitored and controlled with a signal which is supplied by a speed converter, for example a tachometer generator. Direct current is supplied to the windings of an AC motor serving as a drive motor, the electrodynamic braking effect generated in the motor causing a predetermined deceleration behavior in the movement of the escalator. In the event of braking, the windings of the drive motor are preferably supplied with a pulsating DC voltage which is shaped and controlled by means of a thyristor circuit which is controlled by electronic components which are used for the escalator on the basis of those of a speed converter, e.g. a tachometer, delivered speed of the escalator forms a reference speed value.
In neuerer Zeit werden zum Abbremsen von Personenförderanlagen, insbesondere von Rolltreppen und Rollsteigen, auch Frequenzumformer eingesetzt, die unter Umständen mechanische Bremsen als Betriebsbremsen weitestgehend entbehrlich machen. Die Frequenzumformer stellen hierbei jedoch Bauteile dar, die mit einem erhöhtem Kostenaufwand einhergehen und somit unter Umständen kundenseitig nicht erwünscht werden.In recent times, frequency converters have also been used to brake passenger conveyors, in particular escalators and moving walks, which may make mechanical brakes largely unnecessary as service brakes. However, the frequency converters are components that involve increased costs and may therefore not be desired by the customer.
Ziel des Erfindungsgegenstandes ist es, ein Verfahren zur Regelung der Bremse(n) einer Rolltreppe oder eines Rollsteiges dahingehend weiterzubilden, daß ein von Frequenzumformern unabhängiges Regelschema gebildet wird, das gegebenenfalls auch in bestehende Anlagen integriert werden kann, ohne daß es eines besonderen Montage- und Kostenaufwandes bedarf.The object of the invention is to develop a method for regulating the brake (s) of an escalator or a moving walk in such a way that a control scheme is formed which is independent of frequency converters and which if necessary, can also be integrated into existing systems without requiring any special assembly and cost expenditure.
Dieses Ziel wird erreicht durch ein Verfahren zur lastunabhängigen Regelung der Bremse(n) einer Rolltreppe oder eines Rollsteiges, indem mindestens einem mindestens einen Sollwert beinhaltenden Regler Istwerte zugeleitet werden, der Regler diskontinuierlich einen Soll-Ist-Abgleich durchführt und über diese Werte mindestens einen Bremsmagneten ansteuert, der seinerseits auf die Bremse(n) dergestalt einwirkt, daß eine vorgebbare lineare Bremsverzögerung eingestellt wird, wobei im Regler als Sollwerte insbesondere mehrere temporäre Verzögerungswerte in Sollwertfeldern bzw. Sollwertbereichen abgelegt werden.This goal is achieved by a method for load-independent control of the brake (s) of an escalator or an escalator, by supplying actual values to at least one controller containing at least one setpoint, the controller carrying out a target-actual comparison discontinuously and using these values at least one brake magnet controls, which in turn acts on the brake (s) in such a way that a predeterminable linear braking deceleration is set, in particular several temporary deceleration values being stored in the controller as setpoints in setpoint fields or setpoint ranges.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.Advantageous further developments of the subject matter of the invention can be found in the subclaims.
Eine nach dem erfindungsgemäßen Verfahren arbeitende Bremseinrichtung beinhaltet mindestens eine, insbesondere federbelastete Bremse, wie z.B. eine Backenbremse, die über mindestens einen Bremsmagneten ansteuerbar ist, der von mindestens einem einen diskontinuierlichen Soll-Istwert-Vergleich durchführenden Regler ansteuerbar ist.A brake device operating according to the method according to the invention includes at least one, in particular spring-loaded brake, e.g. a shoe brake which can be controlled via at least one brake magnet which can be controlled by at least one controller which carries out a discontinuous setpoint / actual value comparison.
Der Erfindungsgegenstand ermöglicht somit einen, ggf. auch bei bestehenden Anlagen nachrüstbaren, vorzugsweise geschlossenen Regelkreis, der ohne größeren Kosten- und Montageaufwand einerseits in neue und andererseits in bereits bestehende Anlagen integriert werden kann.The subject of the invention thus enables a preferably closed control loop, which can also be retrofitted to existing plants, and which can be integrated into new plants on the one hand and into existing plants on the other without major expense and assembly costs.
Durch das erfindungsgemäße Verfahren sowie die ebenfalls erfindungsgemäße Bremseinrichtung findet gegenüber dem bekannten Stand der Technik eine lastunabhängige Abbremsung des Stufen- bzw. Palettenbandes von Rolltreppen und Rollsteigen statt, die im wesentlichen folgende Vorteile mit sich bringt: stets gleiche Bremswege, da unabhängig von der Last;By means of the method according to the invention and the braking device also according to the invention, a load-independent braking of the step or pallet belt of escalators and moving walks takes place compared to the known prior art, which essentially has the following advantages: Always the same braking distances, as independent of the load;
Verschleißarmut der Betriebsbremse, insbesondere der Bremsbacken einer Backenbremse.Low wear of the service brake, in particular the brake shoes of a shoe brake.
zumindest teilweise Reduzierung der Schwungmasseat least partially reducing the flywheel mass
zumindest teilweise kleinere Dimensionierung des Antriebsmotorsat least partially smaller dimensions of the drive motor
Mit dem erfindungsgemäßen Verfahren bzw. der danach arbeitenden Bremseinrichtung kann somit die Geschwindigkeit der Rolltreppe bzw. des Rollsteiges definiert mit im wesentlichen gleichbleibender Verzögerung bis auf den Wert 0 m/s geführt werden. Zum Zeitpunkt des Auslösens, beispielsweise eines Sicherheitselementes, wird eine Bremsrampe aktiviert, wodurch gleichförmig und linear verzögert abgebremst werden kann, und zwar unter Einhaltung des in den entsprechenden Richtlinien geforderten Bremsweges. Der Regler beinhaltet als Sollwert(e) Verzögerungswerte, die diskontinuierlich vorzugsweise mit Drehzahlwerten des Antriebsmotors der Rolltreppe oder des Rollsteiges, verglichen werden.With the method according to the invention or the braking device operating according to it, the speed of the escalator or moving walk can thus be reduced to a value of 0 m / s in a substantially constant deceleration. At the time of triggering, for example a safety element, a braking ramp is activated, whereby braking can be carried out with a uniform and linear deceleration, in compliance with the braking distance required in the corresponding guidelines. The controller contains, as setpoint (s), deceleration values which are discontinuously preferably compared with speed values of the drive motor of the escalator or the moving walkway.
Einem weiteren Gedanken der Erfindung gemäß kann der Bremsmagnet unabhängig von der Energieversorgung des Antriebsmotors angesteuert werden. Dies bedingt zwar einen etwas höheren Aufwand, da eine unabhängige Stromversorgung vorgesehen werden muß; für besondere Anwendungsfälle, insbesondere unter sicherheitstechnischen Aspekten, wird dieser Einsatzbereich jedoch als weitere Alternative angesehen, um den Erfindungsgegenstand in sinnvoller Weise weiterzubilden.According to a further concept of the invention, the brake magnet can be controlled independently of the energy supply of the drive motor. This does, however, require somewhat more effort, since an independent power supply must be provided; For special applications, especially from a safety point of view, however, this area of application is regarded as a further alternative in order to further develop the subject of the invention in a meaningful way.
Der Erfindungsgegenstand ist anwendbar auf alle Arten von bei Rolltreppen und Rollsteigen Verwendung findenden Bremsen. Bevorzugt soll er jedoch angewendet werden auf mit federbelasteten Bremshebeln versehene Backenbremsen. Der Erfindungsgegenstand ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird wie folgt beschrieben.The subject of the invention is applicable to all types of brakes used in escalators and moving walks. However, it should preferably be used on shoe brakes provided with spring-loaded brake levers. The subject matter of the invention is illustrated in the drawing using an exemplary embodiment and is described as follows.
Es zeigen:Show it:
Figur 1 Teildarstellung der Bremseinrichtung, beispielsweise einer Rolltreppe;Figure 1 partial representation of the braking device, for example an escalator;
Figur 2 Bremseinrichtung gemäß Figur 1 samt Istwert-Drehzahlerfassung;Figure 2 braking device according to Figure 1 including actual value speed detection;
Figur 3 Funktionsschema des erfindungsgemäßen Regelverfahrens der Bremseinrichtung nach den Figuren 1 und 2.FIG. 3 functional diagram of the control method according to the invention of the braking device according to FIGS. 1 and 2.
Figur 1 zeigt als Teildarstellung die Bremse 1 einer nicht weiter dargestellten Rolltreppe. Erkennbar ist eine Bremstrommel 2, ein Bremshebel 3, ein Federpaket 4, eine Halterung 5 sowie ein Bremsmagnet 6, der in diesem Beispiel mit Gleichstrom betrieben wird.Figure 1 shows a partial view of the brake 1 of an escalator, not shown. A brake drum 2, a brake lever 3, a spring assembly 4, a holder 5 and a brake magnet 6 can be seen, which in this example is operated with direct current.
Figur 2 zeigt die gleichen Bauteile wie bereits beschrieben. Darüber hinaus erkennbar sind noch folgende Komponenten: das Gehäuse 7 des Antriebsmotors 8 sowie Sensoren 9 (z.B. Näherungschalter-Initiatoren) zum Abgreifen der Drehzahl des Antriebsmotors 8.Figure 2 shows the same components as already described. The following components can also be seen: the housing 7 of the drive motor 8 and sensors 9 (e.g. proximity switch initiators) for tapping the speed of the drive motor 8.
Die Über- und Unterdrehzahl des als Elektromotor ausgebildeten Antriebes 8 wird über die Initiatoren 9 erfaßt und einem nicht weiter dargestellten Motorwächter zur Verfügung gestellt. Im Normalzustand der Rolltreppe ist die am Bremshebel 3 angeordnete Backenbremse 10 gelüftet, d. h. liegt nicht auf dem als Bremstrommel ausgebildeten Antriebsmotor 8 auf. Bei Abschaltung des Antriebes würde die Feder 4 den Bremshebel 3 auf die den Antriebsmotor 8 bildende Bremstrommel andrücken und so ein Bremsmoment erzeugen. Der Bremshebel 3 wird hierbei auf die Bremstrommel gepreßt und bringt das Stufenband zum Stillstand. Derartige mechanisch wirkende Bremseinrichtungen 1 zählen zum Stand der Technik, wobei auch jede andere, gegebenenfalls nicht mechanische, Bremse zum Einsatz gelangen kann.The overspeed and underspeed of the drive 8, which is designed as an electric motor, is detected by the initiators 9 and made available to a motor monitor (not shown). In the normal state of the escalator, the shoe brake 10 arranged on the brake lever 3 is released, ie does not rest on the drive motor 8 designed as a brake drum. When the drive is switched off, the spring 4 would press the brake lever 3 onto the brake drum forming the drive motor 8 and thus generate a braking torque. The brake lever 3 is pressed onto the brake drum and brings the step belt to a standstill. Such mechanically acting braking devices 1 are part of the prior art, and any other, possibly non-mechanical, brake can also be used.
Figur 3 zeigt als Prinzipskizze ein Regelschema für die Bremseinrichtung 1 gemäß Figuren 1 und 2. Mit dem Bezugszeichen 1 1 ist die Energieversorgung angesprochen. Das Bezugszeichen 12 betrifft einen Regler und das Bezugszeichen 13 einen Bremsmagneten. Der Elektromotor 8 ist ebenso angedeutet, wie die Bremshebel 3 sowie die Drehzahlsensoren 9. Im Regler 12 sind vorzugsweise mehrere Sollwertvorgaben bezüglich möglicher Verzögerungsrampen abgelegt. In diesem Beispiel wird eine diskontinuierliche Ermittlung der jeweiligen Drehzahl des Antriebsmotors 8 über die Drehzahlsensoren 9 bewirkt und als Istwert dem Regler 12 zur Verfügung gestellt. Im Regler 12 wird ein diskontinuierlicher Soll-Ist-Abgleich vorgenommen, dessen Ergebnisse dem Bremsmagneten 13 als Stellwerte zur Verfügung gestellt werden, so daß dieser wiederum regulierend auf den Bremshebel 3 einwirken kann.Figure 3 shows a schematic diagram of a control scheme for the braking device 1 according to Figures 1 and 2. With the reference numeral 1 1, the energy supply is addressed. The reference number 12 relates to a controller and the reference number 13 to a brake magnet. The electric motor 8 is also indicated, as are the brake levers 3 and the speed sensors 9. The controller 12 preferably stores a plurality of setpoint values with respect to possible deceleration ramps. In this example, a discontinuous determination of the respective speed of the drive motor 8 is effected via the speed sensors 9 and made available to the controller 12 as an actual value. In the controller 12, a discontinuous target-actual comparison is carried out, the results of which are made available to the brake magnet 13 as control values, so that the brake magnet 3 can in turn have a regulating effect.
In der Darstellung gemäß Figur 1 und 2 wird der Bremshebel 3 - sobald die Rolltreppe antriebslos werden sollte - über den dann energiemäßig nicht mehr versorgten Bremsmagneten 6 schlagartig einfallen, da dann die Kraft der Feder 4 wirksam wird. Dieses schlagartige Einfallen kann Probleme im Hinblick auf ein ruckartiges Verzögern des Stufenbandes der Rolltreppe bewirken, mit welcher unter Umständen Verletzungsgefahren einhergehen können, sofern nicht geeignete Maßnahmen ergriffen werden.In the illustration according to FIGS. 1 and 2, the brake lever 3 - as soon as the escalator should become unresponsive - will suddenly fall over the brake magnet 6, which is then no longer supplied with energy, since the force of the spring 4 then becomes effective. This sudden collapse can cause problems with regard to a sudden deceleration of the step belt of the escalator, with which there may be a risk of injury if appropriate measures are not taken.
Infolge der Regelung durch Soll-Istwert-Vergleich wird dieser Vorgang nun überbrückt, indem der Bremsmagnet 13 gezielt, ggf. auch bei Stromausfall, angesteuert wird, so daß ein im wesentlichen lineares Abbremsen nach vorgegebenen Kriterien (Bremsrampe) möglich ist. Ebenfalls denkbar ist, daß im Bereich des Reglers mehrere Sollwerte (S) in Sollwertfeldern bzw. Sollwertbereichen als Bremsrampen abgelegt werden, die eine sogenannte Fuzzy-Logik-Schaltung möglich machen, wobei dann der Regler 12 in Abhängigkeit der zugeleiteten Istwerte (I) die bestmögliche Bremsregelung bzw. Bremsrampe vorgibt. As a result of the regulation by means of a comparison of the setpoint and actual value, this process is now bypassed in that the brake magnet 13 is controlled in a targeted manner, possibly also in the event of a power failure, so that essentially linear braking according to predetermined criteria (braking ramp) is possible. It is also conceivable that several setpoints (S) are stored in the setpoint fields or setpoint ranges as braking ramps in the area of the controller, which make a so-called fuzzy logic circuit possible, the controller 12 then depending on the supplied actual values (I) the best possible Brake control or braking ramp specifies.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Verfahren zur lastunabhängigen Regelung der Bremse(n) einer Rolltreppe oder eines Rollsteiges, indem mindestens einem mindestens einen Sollwert (S) beinhaltenden Regler (12) Istwerte (I) zugeleitet werden, der Regler (12) diskontinuierlich einen Soll-Ist-Abgleich durchführt und über diese Werte mindestens einen Bremsmagneten (13) ansteuert, der seinerseits auf die Bremse(n) dergestalt einwirkt, daß eine vorgebbare lineare Bremsverzögerung eingestellt wird, wobei im Regler (12) als Sollwerte (S) insbesondere mehrere temporäre Verzögerungswerte in Sollwertfeldern bzw. Sollwertbereichen abgelegt werden.1 . Method for load-independent control of the brake (s) of an escalator or escalator by supplying at least one controller (12) with at least one setpoint (S) actual values (I), the controller (12) discontinuously performing a setpoint-actual comparison and Controls at least one brake magnet (13) via these values, which in turn acts on the brake (s) in such a way that a predeterminable linear braking deceleration is set, in particular several temporary deceleration values in setpoint fields or setpoint ranges in the controller (12) as setpoints (S) be filed.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, daß dem Regler (12) als Istwert (I) diskontinuierlich oder kontinuierlich über Initiatoren oder andere Sensoren (9) ermittelte Drehzahlen des bzw. der Antriebe(s) (8) der Personenförderanlage zur Verfügung gestellt werden.2. The method according to claim 1, characterized in that the controller (12) as the actual value (I) discontinuously or continuously via initiators or other sensors (9) determined speeds of the drive or drives (s) (8) of the passenger conveyor system become.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Regelung der Bremse(n) (1 ) nach Art der Fuzzy-Logik durchgeführt wird.3. The method according to any one of claims 1 or 2, characterized in that the control of the brake (s) (1) is carried out in the manner of the fuzzy logic.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet das der Bremsmagnet (13) unabhängig von der Energieversorgung des Antriebes (8) angesteuert wird.4. The method according to any one of claims 1 to 3, characterized in that the brake magnet (13) is controlled independently of the energy supply of the drive (8).
5 . Bremseinrichtung für Rolltreppen oder Rollsteige nach einem der Ansprüche 1 bis 4, mit mindestens einer, insbesondere federbelasteten Bremse (1 ), wie einer Backenbremse, die über mindestens einen Bremsmagneten (13) ansteuerbar ist, der von mindestens einem einen diskontinuierlichen Soll-Istwert-Vergleich durchführenden Regler (12) ansteuerbar ist. 5. Braking device for escalators or moving walks according to one of claims 1 to 4, with at least one, in particular spring-loaded brake (1), such as a shoe brake, which can be controlled via at least one brake magnet (13) which is at least one discontinuous setpoint-actual value comparison performing controller (12) can be controlled.
EP00951363A 1999-07-28 2000-07-08 Method for regulating the brake(s) of an escalator or a moving walkway Expired - Lifetime EP1198405B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935521A DE19935521C2 (en) 1999-07-28 1999-07-28 Method for controlling the brake (s) of an escalator or moving walk
DE19935521 1999-07-28
PCT/EP2000/006489 WO2001009027A1 (en) 1999-07-28 2000-07-08 Method for regulating the brake(s) of an escalator or a moving walkway

Publications (2)

Publication Number Publication Date
EP1198405A1 true EP1198405A1 (en) 2002-04-24
EP1198405B1 EP1198405B1 (en) 2003-05-28

Family

ID=7916408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00951363A Expired - Lifetime EP1198405B1 (en) 1999-07-28 2000-07-08 Method for regulating the brake(s) of an escalator or a moving walkway

Country Status (15)

Country Link
US (1) US6520300B2 (en)
EP (1) EP1198405B1 (en)
JP (1) JP2003506292A (en)
KR (1) KR100721584B1 (en)
CN (1) CN1206154C (en)
AT (1) ATE241562T1 (en)
AU (1) AU6433200A (en)
BR (1) BR0012798B1 (en)
DE (2) DE19935521C2 (en)
ES (1) ES2199843T3 (en)
HK (1) HK1048978B (en)
HU (1) HU224684B1 (en)
RU (1) RU2253605C2 (en)
SK (1) SK286050B6 (en)
WO (1) WO2001009027A1 (en)

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DE10018887B4 (en) 2000-04-14 2005-02-10 Kone Corp. Method and device for controlling the brake (s) of a passenger conveyor system
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Also Published As

Publication number Publication date
EP1198405B1 (en) 2003-05-28
ATE241562T1 (en) 2003-06-15
DE19935521A1 (en) 2001-02-08
WO2001009027A1 (en) 2001-02-08
SK286050B6 (en) 2008-01-07
JP2003506292A (en) 2003-02-18
DE19935521C2 (en) 2001-07-19
KR100721584B1 (en) 2007-05-23
ES2199843T3 (en) 2004-03-01
CN1376134A (en) 2002-10-23
US6520300B2 (en) 2003-02-18
AU6433200A (en) 2001-02-19
HUP0201993A2 (en) 2002-12-28
HK1048978A1 (en) 2003-04-25
HU224684B1 (en) 2005-12-28
KR20020024310A (en) 2002-03-29
RU2253605C2 (en) 2005-06-10
BR0012798A (en) 2002-04-30
HK1048978B (en) 2005-09-16
US20020109404A1 (en) 2002-08-15
SK1232002A3 (en) 2002-06-04
BR0012798B1 (en) 2010-05-04
DE50002378D1 (en) 2003-07-03
CN1206154C (en) 2005-06-15

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