ES2131746T3 - HYDRAULIC FORCE CONTROL SYSTEM. - Google Patents

HYDRAULIC FORCE CONTROL SYSTEM.

Info

Publication number
ES2131746T3
ES2131746T3 ES95118465T ES95118465T ES2131746T3 ES 2131746 T3 ES2131746 T3 ES 2131746T3 ES 95118465 T ES95118465 T ES 95118465T ES 95118465 T ES95118465 T ES 95118465T ES 2131746 T3 ES2131746 T3 ES 2131746T3
Authority
ES
Spain
Prior art keywords
piston
servo
sub
valve
cylinder
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.)
Expired - Lifetime
Application number
ES95118465T
Other languages
Spanish (es)
Inventor
Gualtiero Balossini
Piero Bozzola
Giovanni Jacazio
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.)
Microtecnica SRL
Original Assignee
Microtecnica SRL
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 Microtecnica SRL filed Critical Microtecnica SRL
Application granted granted Critical
Publication of ES2131746T3 publication Critical patent/ES2131746T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
    • B61F5/245—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

UN SISTEMA DE REGULACION DE FUERZA HIDRAULICA (10'') QUE PRESENTA UN ACTUADOR HIDRAULICO (11) QUE INCLUYE UN CILINDRO (15) QUE ALOJA UN PISTON (16) MOVIL EN RELACION AL CILINDRO; UN CIRCUITO HIDRAULICO (12-14) QUE A SU VEZ PRESENTA UNA SERVOVALVULA (12) PARA CONTROLAR EL SUMINISTRO AL ACTUADOR; UN PRIMER CICLO DE REGULACION DE FUERZA (26-29) QUE, BASANDOSE EN LA DIFERENCIA ENTRE LA FUERZA ACTUAL (F{SUB,M}) GENERADA POR EL PISTON (16) Y LA FUERZA NOMINAL REQUERIDA (F{SUB,R}), REGULA LA CORRIENTE (I) SUMINISTRADA A LA SERVOVALVULA (12); Y UN SEGUNDO CICLO DE REGULACION (35) QUE, BASANDOSE EN LA VELOCIDAD (V) DEL PISTON (16) EN RELACION CON EL CILINDRO (15), GENERA UNA CORRIENTE ADICIONAL (L{SUB,1}) PARA QUE LA SERVOVALVULA (12), LOGRE UN RENDIMIENTO SUSTANCIALMENTE ELASTICO DEL SISTEMA HIDRAULICO (10''). MAS ESPECIFICAMENTE, LA CORRIENTE ADICIONAL (L{SUB,1}) ABRE LA SERVOVALVULA (12) MEDIANTE LA CANTIDAD EXACTA REQUERIDA PARA PERMITIR EL PASO, EN LA PRESENCIA DE UNA DIFERENCIA DE PRESION DESEADA {DL}P, DEL FLUJO AV (PRODUCTO DEL AREA DEL PISTON A Y VELOCIDAD) PRODUCIDO POR EL MOVIMIENTO DEL PISTON (16) EN RELACION AL CILINDRO (15).A HYDRAULIC FORCE REGULATION SYSTEM (10 '') THAT PRESENTS A HYDRAULIC ACTUATOR (11) THAT INCLUDES A CYLINDER (15) THAT HOLDS A MOBILE PISTON (16) IN RELATION TO THE CYLINDER; A HYDRAULIC CIRCUIT (12-14) WHICH IN turn PRESENTS A SERVO-VALVE (12) TO CONTROL THE SUPPLY TO THE ACTUATOR; A FIRST CYCLE OF FORCE REGULATION (26-29) THAT, BASED ON THE DIFFERENCE BETWEEN THE CURRENT FORCE (F {SUB, M}) GENERATED BY THE PISTON (16) AND THE NOMINAL FORCE REQUIRED (F {SUB, R}) , REGULATES THE CURRENT (I) SUPPLIED TO THE SERVO-VALVE (12); AND A SECOND REGULATION CYCLE (35) THAT, BASED ON THE SPEED (V) OF THE PISTON (16) IN RELATION TO THE CYLINDER (15), GENERATES AN ADDITIONAL CURRENT (L {SUB, 1}) FOR THE SERVO-VALVE (12 ), ACHIEVE A SUBSTANTIALLY ELASTIC PERFORMANCE OF THE HYDRAULIC SYSTEM (10``). MORE SPECIFICALLY, THE ADDITIONAL CURRENT (L {SUB, 1}) OPENS THE SERVO-VALVE (12) THROUGH THE EXACT AMOUNT REQUIRED TO ALLOW THE PASSAGE, IN THE PRESENCE OF A DESIRED PRESSURE DIFFERENCE {DL} P, FROM THE AV FLOW (PRODUCT OF THE PISTON AREA AND SPEED) PRODUCED BY THE PISTON MOVEMENT (16) IN RELATION TO THE CYLINDER (15).

ES95118465T 1994-11-25 1995-11-23 HYDRAULIC FORCE CONTROL SYSTEM. Expired - Lifetime ES2131746T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94TO000957A IT1267627B1 (en) 1994-11-25 1994-11-25 HYDRAULIC FORCE REGULATION SYSTEM.

Publications (1)

Publication Number Publication Date
ES2131746T3 true ES2131746T3 (en) 1999-08-01

Family

ID=11412928

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95118465T Expired - Lifetime ES2131746T3 (en) 1994-11-25 1995-11-23 HYDRAULIC FORCE CONTROL SYSTEM.

Country Status (4)

Country Link
EP (1) EP0713818B1 (en)
DE (1) DE69508888T2 (en)
ES (1) ES2131746T3 (en)
IT (1) IT1267627B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6679565B2 (en) * 2001-10-26 2004-01-20 Delphi Technologies, Inc. Gain scheduling for controlled force application
ITMI20032379A1 (en) * 2003-12-04 2005-06-05 Isocomp S P A DYNAMIC ELECTRO-HYDRAULIC SEMI-DENSIVE DAMPING DEVICE PERFORMED BY MEANS OF LOCOMOTION.
US8079310B2 (en) * 2009-11-25 2011-12-20 LTK Consulting Services, Inc. Vertical position compensating device for a vehicle
DE102017002926A1 (en) 2017-03-27 2018-09-27 Liebherr-Transportation Systems Gmbh & Co. Kg Actuator for controlling a wheelset of a rail vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689475A1 (en) * 1992-04-01 1993-10-08 Faiveley Transport Railway vehicle transverse suspension - includes two pneumatic absorbers supplied by electrovalves responding to signals from regulator
AT408975B (en) * 1992-10-08 2002-04-25 Siemens Sgp Verkehrstech Gmbh ARRANGEMENT FOR CONTROLLING A CROSS-SUSPENSION BETWEEN THE BOGIE AND THE CAR BODY OF A RAIL VEHICLE
DE4234535A1 (en) * 1992-10-14 1994-04-21 Abb Henschel Waggon Union Running gear for rail vehicles

Also Published As

Publication number Publication date
ITTO940957A0 (en) 1994-11-25
EP0713818B1 (en) 1999-04-07
DE69508888T2 (en) 1999-09-09
IT1267627B1 (en) 1997-02-07
EP0713818A1 (en) 1996-05-29
DE69508888D1 (en) 1999-05-12
ITTO940957A1 (en) 1996-05-25

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