WO2019066744A2 - Mécanisme de détection de pression pour soupape de frein pneumatique - Google Patents

Mécanisme de détection de pression pour soupape de frein pneumatique Download PDF

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Publication number
WO2019066744A2
WO2019066744A2 PCT/TR2018/050022 TR2018050022W WO2019066744A2 WO 2019066744 A2 WO2019066744 A2 WO 2019066744A2 TR 2018050022 W TR2018050022 W TR 2018050022W WO 2019066744 A2 WO2019066744 A2 WO 2019066744A2
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
detection mechanism
pressure detection
sensor
pneumatic brake
Prior art date
Application number
PCT/TR2018/050022
Other languages
English (en)
Other versions
WO2019066744A3 (fr
Inventor
Taner Yilmaz
Original Assignee
May Fren Sistemleri Sanayi Ve Ticaret Ltd. Sti.
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 May Fren Sistemleri Sanayi Ve Ticaret Ltd. Sti. filed Critical May Fren Sistemleri Sanayi Ve Ticaret Ltd. Sti.
Priority to CN201890000640.4U priority Critical patent/CN211765485U/zh
Publication of WO2019066744A2 publication Critical patent/WO2019066744A2/fr
Publication of WO2019066744A3 publication Critical patent/WO2019066744A3/fr

Links

Classifications

    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units

Definitions

  • the present invention relates to a pressure detection mechanism for a pneumatic brake valve having a body and pluralities of fluid transmission channels passing through said body and accommodating at least one each measurement openings, said pressure detection mechanism comprising pluralities of pressure sensors in order to measure pressure of the fluid transmission channels through said measurement opening.
  • pressures are measured by means of sensors which can measure the pressure on the units in the valves existing in pneumatic brake systems like EBS trailer and axle modulators in adjusted relay valves used in vehicles.
  • sensors are mounted to a circuit board and each sensor is placed to a measurement opening in a manner subjected to the pressure of one each air transmission channel in the valves and a sealing material is filled between the board and the measurement opening.
  • the pressure to which a sensor is subjected may also effect the other sensors since they are positioned on the same board.
  • the valve body and the board, made one-piece by means of the sealing material may be separated and therefore, the whole structure shall be changed in this case.
  • the present invention relates to a pressure detection mechanism and a pneumatic brake valve compliant to this pressure detection mechanism, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.
  • An object of the present invention is to provide a removable pressure detection mechanism for pneumatic brake valves and a pneumatic brake valve compliant to this pressure detection mechanism.
  • Another object of the present invention is to provide a pressure detection mechanism where the effect of pressure sensors on each other is reduced.
  • Another object of the present invention is to provide a pressure sensor where the pressure sensors are subject to less magnetic noise.
  • the present invention is a pressure detection mechanism for a pneumatic brake valve having a body and pluralities of fluid transmission channels passing through said body and accommodating at least one each measurement openings; said pressure detection mechanism comprising pluralities of pressure sensors in order to be inserted through the measurement opening of the fluid transmission channels.
  • the pressure sensors are positioned on separate boards, and the amount of effect of the pressure, applied on one pressure sensor, on the measurement of the other pressure sensor is reduced.
  • a collector board positioned on the body and electrically connected to the circuit boards, is provided in order to guide the signals received from the pressure sensors.
  • At least one first amplifier is positioned on a second face of the first circuit board; said first amplifier and said first sensor are arranged such that an axis A, which passes through the center of the first amplifier and which extends orthogonally to the second face of the first circuit board, coincides with an axis B which passes through the center of the first sensor and which extends orthogonally to the first face.
  • At least one second amplifier is provided which is positioned on a rear face of the second circuit board; said second amplifier and said second sensor are arranged such that an axis A, which passes through the center of the second amplifier and which extends orthogonally to the rear face of the second circuit board, coincides with an axis B which passes through the center of the second sensor and which extends orthogonally to the first face.
  • pluralities of fixation openings are provided in order to provide fixation of the first circuit board and the second circuit board to the body.
  • the present invention is moreover a pneumatic brake valve comprising a body, pluralities of fluid transmission channels passing through said body, measurement openings providing access through the body to the inner gap of said fluid transmission channels. Accordingly, there is at least one sealing element housing which encircles at least one of the measurement openings in order to fix a sealing element between said pneumatic brake valve and a pressure detection mechanism.
  • At least one first board seating housing is provided which is compliant to a first circuit board provided in a pressure detection mechanism as above.
  • at least one second board seating housing is provided which is compliant to a second circuit board provided in a pressure detection mechanism as above.
  • FIG 3 a cross sectional view of the circuit board is given.
  • Figure 4 a representative view of an embodiment of the pressure detection mechanism is given.
  • the pneumatic brake valve (100) comprises a body (1 10) and fluid transmission channels (120) passing through the body (1 10).
  • the pneumatic brake valve (100) may comprise control mechanisms in order to control the fluid pressure. These control mechanisms can be moved by means of solenoids.
  • the fluid mentioned here is air.
  • the pneumatic brake valve (100) moreover comprises pluralities of measurement openings (130) where one end is opened outwardly from the body (1 10) for each fluid transmission channel (120) and where the other end is opened to one of the fluid transmission channels (120).
  • the pressure measurement mechanism comprises at least two circuit boards (210), and each circuit board (210) comprises at least one pressure sensor (220).
  • the pressure detection mechanism (200) comprises a first circuit board (21 1 ) and a second circuit board (216).
  • the pressure measurement mechanism moreover comprises a second circuit board (216).
  • Said second circuit board (216) comprises three pressure sensors (220) on a front face thereof (217) and three amplifiers (230) positioned in the same alignment and related to these pressure sensors (220) on a rear face thereof (218).
  • the first sensor (221 ) and the first amplifier (231 ) provided at the first circuit board (21 1 ) are positioned in a manner coinciding an axis A (241 ) which passes through the center of the first amplifier (231 ) and which orthogonally cuts the second surface (213) and an axis B (242) which passes through the center of the pressure sensor (220) and which orthogonally cuts the first surface (212).
  • the first circuit board (21 1 ) and the second circuit board (216) of the pressure measurement mechanism may also comprise the components which facilitate pressure detection and which are not mentioned here and which are known in the art, and conductors which provide connection of these with each other.
  • the first board and the second board may comprise pluralities of fixation openings (270). Said fixation openings provide fixation of the circuit boards to the body (1 10).
  • the pressure detection mechanism (200) may also comprise a collector board (250) in order to be positioned on the body (1 10). Said collector board (250) can receive the signals coming through the first and second board and through the other boards if any and it can transfer said signals to the required control units by means of the cables (260).
  • the boards like the first board and the second board comprising sensor are connected to each other in a manner not transferring pressure and force, and the pressure sensors (220) are less affected with each other when compared with the present technical mechanisms where all pressure sensors (220) are provided on a single board.
  • the pneumatic brake valve (100) body (1 10) may comprise connection openings (140). Said connection openings (140) provide fixation of the circuit boards to the body (1 10) by means of a fixation element.
  • the circuit boards are placed on the body (1 10) such that the fixation openings correspond to the connection openings (140).
  • the pneumatic brake valve (100) moreover comprises sealing element housing (160) arranged in a manner encircling the measurement openings (130).
  • the sealing element housing (160) is in circular form.
  • a sealing element (400) which is compliant in form to the sealing element housing (160) is placed to this housing.
  • a circuit board (210) is fixed to the body (1 10) such that the pressure sensor (220) enters into the measurement opening (130).
  • the sealing element (400) and a section of the first face (212) of the board cover the measurement opening (130) and prevent fluid output from here.
  • the sealing element housing (160) delimits the horizontal movement of the sealing element (400), and the circuit board (210), which is fixed by means of the fixation opening (270) and the connection opening (140) by means of the connection element (401 ), delimits the vertical movement of the sealing element (400).
  • the sealing element (400) is in ring form and it is made of polymer-based material.
  • the sealing element (400) is particularly O- ring.
  • the pneumatic brake valve (100) may moreover comprise a first board seating housing (151 ) in order to place a first board and a second board seating (152) housing in order to place a second board.
  • the pressure detection mechanism (200) may comprise a separate circuit board (210) for each pressure sensor (220).
  • One each amplifiers (230) are provided for each pressure sensor (220) in each circuit board (210) and positioned such that the axis B (242) of the amplifiers (230) corresponds to the axis A (241 ) of the related pressure sensor (220).
  • the circuit boards (210) may also comprise a sealing element region where the regions are marked which are contacted by the sealing element (400) on the faces where the pressure sensors (220) are provided.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

La présente invention concerne un mécanisme de détection de pression (200) pour une soupape de frein pneumatique (100) comportant un corps (110) et des pluralités de canaux de transmission de fluide (120) passant à travers ledit corps (110) et logeant chacun au moins une ouverture de mesure, ledit mécanisme de détection de pression (200) comprenant des pluralités de capteurs de pression (220) pour être introduits dans l'ouverture de mesure (130) des canaux de transmission de fluide (120). En conséquence, le mécanisme de détection de pression (200) selon l'invention est caractérisé en ce qu'il comprend au moins une première carte de circuit imprimé (211) accueillant au moins un premier capteur (221) sur une première face (212), et au moins une deuxième carte de circuit imprimé (216) accueillant au moins un deuxième capteur (222) sur une face avant (217).
PCT/TR2018/050022 2017-03-17 2018-01-23 Mécanisme de détection de pression pour soupape de frein pneumatique WO2019066744A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201890000640.4U CN211765485U (zh) 2017-03-17 2018-01-23 气动制动阀及用于其的压力检测机构

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201704083 2017-03-17
TR2017/04083 2017-03-17

Publications (2)

Publication Number Publication Date
WO2019066744A2 true WO2019066744A2 (fr) 2019-04-04
WO2019066744A3 WO2019066744A3 (fr) 2019-06-27

Family

ID=65902122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2018/050022 WO2019066744A2 (fr) 2017-03-17 2018-01-23 Mécanisme de détection de pression pour soupape de frein pneumatique

Country Status (2)

Country Link
CN (1) CN211765485U (fr)
WO (1) WO2019066744A2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521832A1 (de) * 1995-06-16 1996-12-19 Bosch Gmbh Robert Druckmeßvorrichtung
WO1999050115A1 (fr) * 1998-03-31 1999-10-07 Continental Teves Ag & Co. Ohg Bloc de composants detecteurs de pression
WO2011104860A1 (fr) * 2010-02-26 2011-09-01 ナブテスコ株式会社 Module de capteurs de pression et dispositif de détection de pression

Also Published As

Publication number Publication date
WO2019066744A3 (fr) 2019-06-27
CN211765485U (zh) 2020-10-27

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