EP1826091B1 - Verfahren zum Optimieren der Führung von Schienenfahrzeugen - Google Patents

Verfahren zum Optimieren der Führung von Schienenfahrzeugen Download PDF

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Publication number
EP1826091B1
EP1826091B1 EP20070102904 EP07102904A EP1826091B1 EP 1826091 B1 EP1826091 B1 EP 1826091B1 EP 20070102904 EP20070102904 EP 20070102904 EP 07102904 A EP07102904 A EP 07102904A EP 1826091 B1 EP1826091 B1 EP 1826091B1
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EP
European Patent Office
Prior art keywords
wheels
guidance
chassis
railway vehicles
rails
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EP20070102904
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English (en)
French (fr)
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EP1826091A1 (de
Inventor
José Luis Patentes Talgo S.A. López Gómez
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Patentes Talgo SL
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Patentes Talgo SL
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Priority to PL07102904T priority Critical patent/PL1826091T3/pl
Publication of EP1826091A1 publication Critical patent/EP1826091A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/386—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles fluid actuated

Definitions

  • the invention relates to a method for optimizing guidance of railway vehicles that can be applied to free-wheel railway vehicles, such as vehicles with TALGO-type one-axle running gear with independent wheels, and to railway vehicles with wheels coupled bogies.
  • Spanish patent 2.195.756 belonging to the same applicant filing this invention discloses a system and a method for optimizing free-wheel guidance of railway vehicles.
  • EP 0765791 A1 describes a single-axle bogie for a rail vehicle in which a single wheel assembly is guided in a bogie frame; there is provided a resilient device for producing a return force against the steering deflection of the bogie frame which occurs when conformating a curve in the track. It has a yoke that is displaceable with respect to the railway car body in a vertical direction and in a transverse direction and to which the bogie frame is vertically steerably connected.
  • a power-regulated actuator may be provided for producing a counteracting force which acts against the return force.
  • a sensor may be provided for detecting the actual value of steering deflection and a regulating circuit for re-adjusting the magnitude of the power at the power-regulated actuator in the event of deviation of the reference value of steering deflection from the actual value.
  • the present invention is also aimed at meeting the need of optimizing free-wheel guidance of railway vehicles.
  • the first object of the present invention is an optimized method for guidance of railway vehicles of the free-wheel or coupled wheel type comprising adjustable suspension means for suspending the wagons on the chassis or bogie housing the wheels, comprising the following steps:
  • the second object of the present invention is an optimized method for guidance of railway vehicles of the free-wheel or coupled wheel type comprising adjustable suspension means for suspending the boxes on the chassis or bogie housing the wheels including asymmetrical dampers, with two electrovalves that can be actuated, comprising the following steps:
  • the methods object of the present invention will preferably be used as a supplement to the aforementioned guidance systems, but it is necessary to point out that they can be used separately from them.
  • diameter D1 of the section of the wheel 11 in contact with the rail 15 is not diameter Dm that would correspond if the wheel 11 were centered, rather it is larger.
  • the angular velocities of the wheels 11 and 13 are not the same- which would occur if they were centered- but rather they are different.
  • the magnitude and direction of the different angular velocity of the wheels of one axle are parameters that define their being off-centered, and their values can be obtained using known means such as sensors for the antilock brake system (ABS) incorporated in many trains today.
  • ABS antilock brake system
  • the system and method disclosed in patent document 2.195.756 which optimizes the guidance by acting on the guidance bars, the off-centering of the wheels is detected from the measurement of their angular velocities.
  • the present invention has come about from the observation of the effects of the operation of the suspension means used, which are briefly described below, on guidance of railway vehicles.
  • chassis 45 In the first embodiment of the invention and according to Figure 2 , three perfectly centered free-wheel type chasses 41, 43, 45 can be seen.
  • the main elements have been referenced in chassis 45 for the purpose of the present invention: the wheels 11, 13, suspension means 21, 23, the supports 25, 27 of the suspension means 21, 23 and the guidance bars 19 corresponding with those described in patent documents 2.133.229 and 2.195.756 .
  • the method proposed by the present invention consists of correcting the off-centering of the wheels by acting on the suspension means. So if an off-centering of the chassis 41 such as that shown in Figure 2 is detected when the angular velocities of its wheels are compared, according to the method, the left suspension 21 must be lifted by the magnitude that is necessary to correct the off-centering.
  • asymmetrical dampers In a second embodiment of the invention, which can be applied to trains provided with asymmetrical dampers, the method would be applied by acting on the asymmetrical dampers so that they displace the centers of the bogie and wagon towards the appropriate side to optimize rolling.
  • the asymmetrical damper is similar to the standard damper, with the particularity that it has two electrovalves, such that when the two electrovalves are deactivated, it performs like a normal damper.
  • the same force is required for traction as for compression. If an electrovalve is actuated, the compression one for example, the compression strength is reduced to "0" or is progressively reduced, achieving displacement of the wagon when the vehicle is running due to the tendency of said vehicle to move to the side.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Claims (3)

  1. Optimiertes Verfahren zur Führung von Schienenfahrzeugen der Freilauf- oder Kuppelrad-Bauart, die einstellbare Aufhängungseinrichtungen zur Aufhängung der Wagen an dem Fahrwerk oder Drehgestell (41, 43, 45), das die Räder aufnimmt, aufweisen, dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    - Erfassen einer Dezentrierung ihrer Räder (11, 13) in Bezug auf die Schienen (15, 17) für jede Fahrzeugachse;
    - Modifizieren der Höhe der Träger (25, 27) für die Aufhängungseinrichtungen (21, 23) für die auf jedem Fahrwerk (41, 43, 45) platzierten Wagen um die Größe, die erforderlich ist, um die Räder (11, 13) auf den Schienen (15, 17) zu zentrieren.
  2. Optimiertes Verfahren zum Führen von Schienenfahrzeugen nach Anspruch 1, dadurch gekennzeichnet, dass die Aufhängungseinrichtungen (21, 23) pneumatisch sind und ihre Höhe mittels Niveauventile (61) eingestellt wird.
  3. Optimiertes Verfahren zum Führen von Schienenfahrzeugen der Freilauf- oder Kuppelrad-Bauart, die einstellbare Aufhängungseinrichtungen zur Aufhängung der Wagen an dem Fahrwerk oder Drehgestell (41, 43, 45), das die Räder aufnimmt, einschließlich asymmetrischer Dämpfungseinrichtungen mit zwei Elektroventilen, die betätigt werden können, aufweisen, dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    - Erfassen einer Dezentrierung ihrer Räder (11, 13) in Bezug auf die Schienen (15, 17) für jede Fahrzeugachse;
    - Modifizieren der Position des Zentrums des Fahrwerks oder Drehgestells (41, 43, 45) um die Größe, die erforderlich ist, um die Räder (11, 13) auf den Schienen (15, 17) zu zentrieren, unter Einwirkung auf die asymmetrischen Dämpfungseinrichtungen.
EP20070102904 2006-02-24 2007-02-22 Verfahren zum Optimieren der Führung von Schienenfahrzeugen Active EP1826091B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07102904T PL1826091T3 (pl) 2006-02-24 2007-02-22 Sposób optymalizacji prowadzenia pojazdów szynowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200600440A ES2316220B1 (es) 2006-02-24 2006-02-24 Metodo para optimizar el guiado de vehiculos ferroviarios.

Publications (2)

Publication Number Publication Date
EP1826091A1 EP1826091A1 (de) 2007-08-29
EP1826091B1 true EP1826091B1 (de) 2010-04-07

Family

ID=38051557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070102904 Active EP1826091B1 (de) 2006-02-24 2007-02-22 Verfahren zum Optimieren der Führung von Schienenfahrzeugen

Country Status (7)

Country Link
EP (1) EP1826091B1 (de)
AT (1) ATE463404T1 (de)
DE (1) DE602007005707D1 (de)
DK (1) DK1826091T3 (de)
ES (1) ES2316220B1 (de)
PL (1) PL1826091T3 (de)
PT (1) PT1826091E (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693185A (en) * 1986-02-21 1987-09-15 Dofasco Inc. Control systems for vehicle fluid suspension systems
FR2708548B1 (fr) * 1993-07-30 1995-09-01 Gec Alsthom Transport Sa Procédé de centrage des essieux orientables d'un bogie.
ES2084551B1 (es) 1993-10-15 1997-10-16 Talgo Patentes Sistema de guiado aplicable en un bogie de cuatro ruedas con separacion varibale entre las mismas.
AT407140B (de) * 1993-11-26 2000-12-27 Integral Verkehrstechnik Ag Einrichtung zur steuerung eines rades, insbesondere eines radsatzes eines schienenfahrzeuges
ES2133229B1 (es) 1996-12-24 2000-04-16 Talgo Patentes Rodadura monoeje con ruedas independientes desplazables para vagones articulados de transporte de automoviles.
JP2001001896A (ja) * 1999-06-22 2001-01-09 Mitsubishi Heavy Ind Ltd 鉄道車両用の一軸独立車輪台車
ES2195756B1 (es) 2001-12-27 2005-03-01 Patentes Talgo, S.A Sistema para optimizar el guiado de ejes ferroviarios.

Also Published As

Publication number Publication date
ATE463404T1 (de) 2010-04-15
ES2316220A1 (es) 2009-04-01
ES2316220B1 (es) 2010-01-12
DK1826091T3 (da) 2010-08-02
DE602007005707D1 (de) 2010-05-20
PL1826091T3 (pl) 2010-09-30
EP1826091A1 (de) 2007-08-29
PT1826091E (pt) 2010-07-07

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