DE19730212A1 - Function condition detector for rail vehicle wheel sensor - Google Patents

Function condition detector for rail vehicle wheel sensor

Info

Publication number
DE19730212A1
DE19730212A1 DE1997130212 DE19730212A DE19730212A1 DE 19730212 A1 DE19730212 A1 DE 19730212A1 DE 1997130212 DE1997130212 DE 1997130212 DE 19730212 A DE19730212 A DE 19730212A DE 19730212 A1 DE19730212 A1 DE 19730212A1
Authority
DE
Germany
Prior art keywords
optical signal
signal transmitter
rail vehicle
wheel
control
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
DE1997130212
Other languages
German (de)
Other versions
DE19730212C2 (en
Inventor
Mahmud Keschwari Dipl In Rasti
Herbert Dipl Ing Post
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.)
KES KESCHWARI ELECTRONIC SYSTEMS GMBH & CO. KG
KES KESCHWARI ELECTRONIC SYSTEMS GMBH & CO. KG, DE
Original Assignee
Sab Wabco KP GmbH
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 Sab Wabco KP GmbH filed Critical Sab Wabco KP GmbH
Priority to DE1997130212 priority Critical patent/DE19730212C2/en
Publication of DE19730212A1 publication Critical patent/DE19730212A1/en
Application granted granted Critical
Publication of DE19730212C2 publication Critical patent/DE19730212C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G01M17/10—Suspensions, axles or wheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)

Abstract

The detector has an optical signal source (9), positioned on the outside of the wheel axle bearing (11) and the axle bearing cover (10), which provides a visual indication of the voltage or current pulses provided by the co-operating pole wheel (4) and pulse source (5) of the sensor and fed to an electronic control circuit (8). The spacings between the signals provided by the optical signal source are evaluated to check the relative spacing of the pole wheel and pulse source.

Description

Die Erfindung betrifft eine Einrichtung zum Erkennen des Montagezustandes und anderer Funktionszustände eines berührungsfreien Gebersystems auf Achsstummeln von Radachsen an Schienenfahrzeugen, die ein Polrad und diesem radial gegenüberliegend den Impulsgeber tragen, der an eine Elektronik für die Steuerung von Bremsvorgängen u. dgl. angeschlossen ist.The invention relates to a device for recognizing the mounting state and other functional states of a non-contact encoder system Axle stub of wheel axles on rail vehicles, the one pole wheel and this wear the pulse generator radially opposite, which is connected to electronics for the Control of braking processes and. Like. Is connected.

Bei der Montage von Gebersystemen ist eine Fehlanordnung des Polrades und/oder des Impulsgebers leider nicht immer ganz auszuschließen. So kommt es bei den Montagearbeiten vor, daß die funktional in Verbindung stehenden Komponenten nicht vorhanden oder falsch oder schlecht eingestellt sind. Zur Zeit werden solche Fehler per Zufall bei Inbetriebnahme oder erst später während des Betriebs festgestellt. Da die elektrischen Impulse des Gebers jedoch für mehrere Funktionen herangezogen werden, ist außerdem die Sicherheit des Fahrzeugbetriebs gefährdet.When mounting encoder systems there is a misalignment of the magnet wheel and / or of the pulse generator unfortunately cannot always be completely ruled out. So it happens with the Assembly work before that the functionally related components are not available or are incorrect or poorly set Currently there are Random errors during commissioning or later during operation detected. However, since the electrical impulses of the encoder have multiple functions are used, the safety of vehicle operation is also at risk.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zum Erkennen solcher Fehler zu schaffen, die leicht zu überwachen ist und keinen besonderen und großen Aufwand erfordert.The invention has for its object a device for recognizing such To make mistakes that are easy to monitor and not special and big Effort required.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß zur Kontrolle des Polrades bzw. des Abstandes zwischen Polrad und Impulsgeber, des Rundlaufs und anderer Herstellungs- bzw. Montageabweichungen und zur Überwachung einer Steuerelektronik der erzeugte Spannungs- bzw. Stromimpuls zur Anzeige mittels eines optischen Signalgebers verwendbar ist, wobei der optische Signalgeber außerhalb des Achslagers, d. h. des Achslagerdeckels einsehbar angeordnet ist. Dadurch kann allein durch Beobachtung des Signalgebers von außen festgestellt werden, ob das Polrad vorhanden ist, ob dessen Abstand einen regelmäßigen Lichtimpuls erzeugt, so daß von einem ruhigen Lauf des Polrads und seiner ordnungsgemäßen Lagerung ausgegangen werden kann.The object is achieved in that the control of Magnet wheel or the distance between magnet wheel and pulse generator, concentricity and other manufacturing or assembly deviations and for monitoring one Control electronics of the generated voltage or current pulse for display by means of an optical signal transmitter can be used, the optical signal transmitter outside the axle box, d. H. the axle bearing cover is arranged visible. As a result, it can be determined from outside only by observing the signal generator  whether the magnet wheel is present, whether its distance is regular Light pulse generated, so that the magnet wheel and its run smoothly proper storage can be assumed.

Eine besonders einfache Anordnung des Signalgebers wird dadurch erhalten, daß der optische Signalgeber im Impulsgeber angeordnet und von außen einsehbar ist. Es ist somit möglich, alleine durch Vorbeigehen am Schienenfahrzeug die Funktions­ fähigkeit der Steuerelektronik und des Gebersystems durch Inaugenscheinnahme zu überwachen.A particularly simple arrangement of the signal generator is obtained in that the optical signal generator is arranged in the pulse generator and can be viewed from the outside. It is therefore possible to check the function simply by walking past the rail vehicle ability of the control electronics and the encoder system to inspect monitor.

Die Ausführbarkeit des optischen Signalgebers kann variiert und den jeweiligen elektronischen Schaltungen angepaßt werden. Eine Ausführungsform besteht darin, daß der optische Signalgeber aus einer wasserdicht eingebauten Diode gebildet wird.The feasibility of the optical signal generator can vary and the respective electronic circuits are adapted. One embodiment is that the optical signal transmitter is formed from a waterproof built-in diode becomes.

Eine andere Ausführungsform gestaltet sich noch einfacher, indem der optische Signalgeber aus einem von einer Steuerelektronik nach außen geführten Lichtwellenleiter besteht.Another embodiment is made even easier by the optical Signal generator from a control electronics led to the outside Optical fiber exists.

Die Überwachung der Einrichtung erfordert ferner keinerlei Aufwand am Schienenfahrzeug, weil der optische Signalgeber bei einer Minimalgeschwindigkeit des Schienenfahrzeugs von etwa 0,1-3 km/h ablesbar ist.Monitoring the facility also requires no effort on Rail vehicle because the optical signal generator at a minimum speed of the rail vehicle can be read from about 0.1-3 km / h.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is in following described in more detail.

Die einzige Figur der Zeichnung stellt einen axialen Querschnitt durch den Bereich des Achsstummels der Achse eines Schienenfahrzeugs dar.The only figure in the drawing represents an axial cross section through the area the stub of the axle of a rail vehicle.

Die Einrichtung befindet sich an einem Schienenfahrzeug 1 auf einem Achsstummel 2 an einer Radachse 3 und weist jeweils ein mit Zähnen 4a versehenes Polrad 4 auf, dem radial gegenüberliegend ein Impulsgeber 5 mit fest bestimmtem Abstand 12 befestigt ist. Signalleitungen 6 sind geschützt in einem Schutzschlauch 7 bis in eine Steuerelektronik 8 geführt. Die Spannungs- oder Stromimpulse werden als Lichtsignale auf einen optischen Signalgeber 9 gegeben, der bei einem Vorbeilauf eines Zahnes 4a kurz aufleuchtet. Von erheblicher Bedeutung ist die Ver­ kapselung des Polrades 4 mittels eines Achslagerdeckels 10, der das Achslager 11 umschließt.The device is located on a rail vehicle 1 on an axle stub 2 on a wheel axle 3 and each has a magnet wheel 4 provided with teeth 4 a, to which a pulse generator 5 is attached radially opposite with a fixed distance 12 . Signal lines 6 are protected in a protective tube 7 into control electronics 8 . The voltage or current pulses are given as light signals to an optical signal generator 9 , which lights up briefly when a tooth 4 a passes by. The encapsulation of the magnet wheel 4 by means of an axle bearing cover 10 , which encloses the axle bearing 11, is of considerable importance.

Das Polrad 4 bzw. jeder Zahn 4a ist zum Fühler des Impulsgebers 5 auf einen optimalen Abstand 12 eingestellt. Bei Nichteinhaltung der dafür erforderlichen Toleranz wird vom optischen Signalgeber 9 entweder ein Lichtsignal erzeugt oder kein solches Lichtsignal.The pole wheel 4 or each tooth 4 a is set to the sensor of the pulse generator 5 at an optimal distance 12 . If the tolerance required for this is not observed, the optical signal generator 9 either generates a light signal or no such light signal.

Der optische Signalgeber 9, eine sog. Multifunktionsanzeige, kann auch als Überwachung der Steuerelektronik 8 außerhalb des Schienenfahrzeugs 1 herangezogen werden, ob z. B. die Einrichtung eingeschaltet ist und ob die periodische Überwachung des Impulsgebers 5 durchgeführt wird. Der optische Signalgeber 9 kann auch aus einer wasserdicht eingebauten Diode 13 oder der Spitze eines Lichtwellenleiters 14 gewählt werden.The optical signal generator 9 , a so-called multifunction display, can also be used as a monitoring of the control electronics 8 outside the rail vehicle 1 , whether z. B. the device is switched on and whether the periodic monitoring of the pulse generator 5 is carried out. The optical signal generator 9 can also be selected from a waterproof built-in diode 13 or the tip of an optical waveguide 14 .

Der optische Signalgeber 9 kann schon bei einer Minimalgeschwindigkeit des Schienenfahrzeugs 1 von etwa 0,1 bis 3 km/h abgelesen werden.The optical signal transmitter 9 can already be read at a minimum speed of the rail vehicle 1 of approximately 0.1 to 3 km / h.

Claims (5)

1. Einrichtung zum Erkennen des Montagezustandes und anderer Funktions­ zustände eines berührungsfreien Gebersystems auf Achsstummeln von Radachsen an Schienenfahrzeugen, die ein Polrad und diesem radial gegenüberliegend den Impulsgeber tragen, der an eine Elektronik für die Steuerung von Bremsvorgängen u. dgl. angeschlossen ist, dadurch gekennzeichnet, daß zur Kontrolle des Polrades (4) bzw. des Abstandes zwischen Polrad (4) und Impulsgeber (5), des Rundlaufs- und anderer Herstellungs- bzw. Montage-Ab­ weichungen und zur Überwachung einer Steuerelektronik (8) der erzeugte Spannungs- bzw. Stromimpuls zur Anzeige mittels eines optischen Signalgebers (9) verwendbar ist, wobei der optische Signalgeber (9) außerhalb des Achslagers (11), d. h. des Achslagerdeckels (10) einsehbar angeordnet ist.1. Device for recognizing the mounting state and other functional states of a non-contact sensor system on stub axles of wheel axles on rail vehicles, which carry a magnet wheel and this radially opposite the pulse generator, which is connected to electronics for the control of braking processes and. Like. Connected, characterized in that to control the magnet wheel ( 4 ) or the distance between the magnet wheel ( 4 ) and pulse generator ( 5 ), the concentricity and other manufacturing or assembly deviations and for monitoring a control electronics ( 8 ) the generated voltage or current pulse can be used for display by means of an optical signal transmitter ( 9 ), the optical signal transmitter ( 9 ) being arranged so that it can be seen outside the axle bearing ( 11 ), ie the axle bearing cover ( 10 ). 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der optische Signalgeber (9) im Impulsgeber (5) angeordnet und von außen einsehbar ist.2. Device according to claim 1, characterized in that the optical signal generator ( 9 ) is arranged in the pulse generator ( 5 ) and is visible from the outside. 3. Einrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der optische Signalgeber (9) aus einer wasserdicht eingebauten Diode (13) gebildet wird. 3. Device according to one of claims 1 or 2, characterized in that the optical signal transmitter ( 9 ) is formed from a waterproof built-in diode ( 13 ). 4. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der optische Signalgeber (9) aus einem von der Elektroniksteuerung (8) nach außen geführten Lichtwellenleiter (14) besteht.4. Device according to one of claims 1 to 3, characterized in that the optical signal transmitter ( 9 ) consists of an out of the electronics control ( 8 ) outwardly guided optical waveguide ( 14 ). 5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der optische Signalgeber (9) bei einer Minimalgeschwindigkeit des Schienenfahrzeugs (1) von etwa 0,1-3 km/h ablesbar ist.5. Device according to one of claims 1 to 4, characterized in that the optical signal transmitter ( 9 ) at a minimum speed of the rail vehicle ( 1 ) of about 0.1-3 km / h can be read.
DE1997130212 1997-07-15 1997-07-15 Rail vehicle wheel axle with a device for recognizing the mounting state and other functional states of a non-contact encoder system Expired - Lifetime DE19730212C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997130212 DE19730212C2 (en) 1997-07-15 1997-07-15 Rail vehicle wheel axle with a device for recognizing the mounting state and other functional states of a non-contact encoder system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997130212 DE19730212C2 (en) 1997-07-15 1997-07-15 Rail vehicle wheel axle with a device for recognizing the mounting state and other functional states of a non-contact encoder system

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DE19730212A1 true DE19730212A1 (en) 1999-02-11
DE19730212C2 DE19730212C2 (en) 2001-03-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000051869A1 (en) * 1999-03-04 2000-09-08 Skf Industrie S.P.A. A railway axle hub unit
DE102006053432A1 (en) * 2006-11-14 2008-05-15 Schaeffler Kg Measuring device for detecting mechanical defects at wheel set of rail vehicle, has cover screw screwed into wheel set bearing housing via through hole of sensor housing and screw cover hole of cover for fastening sensor housing to cover
CN102328671A (en) * 2011-07-29 2012-01-25 长春轨道客车股份有限公司 Axle box cover for detecting bogie

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211173B4 (en) * 2002-03-14 2004-03-25 Kes Keschwari Electronic Systems Gmbh & Co. Kg Device for rail vehicles equipped with anti-skid electronics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837508A (en) * 1987-03-20 1989-06-06 Bendix France Process and device for checking the operational state of a variable reluctance magnetic sensor and their application to automobile electronics
DE3816207C2 (en) * 1987-08-20 1990-10-31 Honda Giken Kogyo K.K., Tokio/Tokyo, Jp
GB2284481A (en) * 1993-11-03 1995-06-07 Romatic Ltd A monitor for a speed limiter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837508A (en) * 1987-03-20 1989-06-06 Bendix France Process and device for checking the operational state of a variable reluctance magnetic sensor and their application to automobile electronics
DE3816207C2 (en) * 1987-08-20 1990-10-31 Honda Giken Kogyo K.K., Tokio/Tokyo, Jp
GB2284481A (en) * 1993-11-03 1995-06-07 Romatic Ltd A monitor for a speed limiter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000051869A1 (en) * 1999-03-04 2000-09-08 Skf Industrie S.P.A. A railway axle hub unit
AU753260B2 (en) * 1999-03-04 2002-10-10 Skf Industrie S.P.A. A railway axle hub unit
US6672681B1 (en) 1999-03-04 2004-01-06 Skf Industrie S.P.A. Railway axle hub unit
DE102006053432A1 (en) * 2006-11-14 2008-05-15 Schaeffler Kg Measuring device for detecting mechanical defects at wheel set of rail vehicle, has cover screw screwed into wheel set bearing housing via through hole of sensor housing and screw cover hole of cover for fastening sensor housing to cover
CN102328671A (en) * 2011-07-29 2012-01-25 长春轨道客车股份有限公司 Axle box cover for detecting bogie

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Publication number Publication date
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