WO2009113110A1 - Capteur de pression pneumatique - Google Patents

Capteur de pression pneumatique Download PDF

Info

Publication number
WO2009113110A1
WO2009113110A1 PCT/IN2009/000169 IN2009000169W WO2009113110A1 WO 2009113110 A1 WO2009113110 A1 WO 2009113110A1 IN 2009000169 W IN2009000169 W IN 2009000169W WO 2009113110 A1 WO2009113110 A1 WO 2009113110A1
Authority
WO
WIPO (PCT)
Prior art keywords
pps
pressure sensor
pneumatic pressure
vehicles
deformation
Prior art date
Application number
PCT/IN2009/000169
Other languages
English (en)
Inventor
Sameer Panda
Kashama Nidhi Panda
Original Assignee
Sameer Panda
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 Sameer Panda filed Critical Sameer Panda
Publication of WO2009113110A1 publication Critical patent/WO2009113110A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/066—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel-centre to ground distance

Definitions

  • This invention relates to Pneumatic Pressure Sensor (PPS) to indicate instant pressure of tyre as compared to standard pressure of the tyre.
  • PPS Pneumatic Pressure Sensor
  • Object of this invention is to obviate the above drawbacks by providing an indicator which senses the signal sent by the Pneumatic Pressure Sensor (PPS) fitted on the wheel/rim/ inner tyre/ inner part of the tyre.
  • PPS Pneumatic Pressure Sensor
  • This Pneumatic Pressure Sensor (PPS) is suitable for tubeless, radial, bias, bias-ply tyres or any tyre that uses any pressurized fluid to carry the load.
  • this invention provides a “Pneumatic Pressure Sensor (PPS)" for vehicles comprising of:
  • the means to sense deformation or distance comprises of a flexible wire loop (7) of whose one end is fixed to a housing (5); said wire loop passes through supporting wire notch at the inner side of the crown portion of the tyre (8) and free end of said wire loop is passed through receptors (6) to capture details of deformation or distance.
  • the wire loop can be reoriented in different directions even perpendicularly and it should have inflexible sides.
  • An electrical circuit is connected to said receptors so that once the free end touches any of the receptor the circuit is closed and accordingly the signal is sent to indicator on dashboard.
  • At least two indicators per tyre are provided on the display board to show acceptable pressure and unacceptable pressure.
  • the means to sense deformation or distance are Sensors/transducers which are provided at the side wall of the tyre where maximum deformation is possible.
  • the sensors/ transducers are embedded to a belt like structure having a hole like structure to attach to valve of a tube in tyre-tube arrangement, in such locations where maximum deformation takes place.
  • Periodic deformation of the side wall, while the tyre is rolling, is captured and transmitted by capturing and transmitting means to ECU and the ECU compares the input from the transducer unit and with predetermined conditions and accordingly sends signal to the dashboard.
  • Dashboard shows tire arrangement in a two dimensional display unit which is replica of wheel arrangement of vehicle so that the driver can easily know the pressure range of each tire and can also make a comparison of the tyres and accordingly take preventive maintenance steps or curative steps.
  • Tachometer is provided in every wheel to read the revolutions per minute of every wheel 1 and comparison of input of tachometer and input of sensor/transducer is done in ECU to' know whether there is a possibility of skidding depending upon the air pressure of the 1 tyres and rpm of each wheel and output is communicated to the driver.
  • Fig.l shows side view of the Pneumatic Pressure Sensor.
  • Fig.2 shows side view of the Pneumatic Pressure Sensor.
  • Fig.3 shows front cross-sectional front view of the Pneumatic Pressure Sensor.
  • Fig.4 shows front cross-sectional front view of the Pneumatic Pressure Sensor.
  • Fig.5 shows front cross-sectional front view of the Pneumatic Pressure Sensor.
  • Fig.6 shows front cross-sectional front view of the Pneumatic Pressure Sensor.
  • Fig.7 shows side view of the Pneumatic Pressure Sensor with necessary attachment.
  • Fig.8 shows front cross-sectional front view of the Pneumatic Pressure Sensor with necessary attachment.
  • a Pneumatic Pressure Sensor for vehicles comprising of a means to sense the deformation in side walls or distance between wheel and crown portion of tyre and a means to capture the information of deformation or distance and a means for transmitting the same information to ECU which further sends signal to the dashboard after processing the same information.
  • PPS Pneumatic Pressure Sensor
  • a flexible wire loop (7) of suitable length and diameter whose one end is fixed to a housing (5) is provided.
  • Said wire loop passes through supporting wire notch at the inner side of the crown portion of the tyre (8).
  • Free end of said wire loop is passed through receptors (6).
  • wire loop orientation can be reoriented in different directions even perpendicularly.
  • the wire l ⁇ bp should have inflexible sides so that the lateral movement between the crown portion of the tyre aind wheel is reflected in the movement of the wire loop.
  • the movement of said free end iis sensed by the receptors (6) and signal is passed to the display board.
  • An electrical circuit is connected to the metal loop so that once the free end touches any of the receptor the circuit is closed and accordingly the signal is sent to the indicator.' When the free end touches the first; receptor indicator shows green, when it touches the sec ⁇ t ⁇ d- receptor the indicator shows > yellow and when it touches the third receptor the indicator" shows red.
  • the respective circuit of the small metal loop is completed when the free end' of the large metal loop touches the small loop or receptor thus indicating the amount of pressure in the tyre/tube.
  • the size of each small metal loop or receptor is such that it can properly accommodate the incoming free end of the large metal loop one after another according to the amount of pressure in the tyre.
  • each indicator contains at least two lights and preferably three in-built light of green, yellow and red colour where green indicates standard pressure, yellow indicates lower pressure and red indicates pressure below permissible level.
  • receptor such as small metal loop or any protruding conducting receptor.
  • LEDs indicators
  • the high pressure condition is shown by another indicator preferably of different colour then blue, yellow/orange and red.
  • the high pressure condition is judged when the deformation is minimum, and the metal wire touches the first receptor or the transducer/ sensor coupled to the side wall of tyre or sensor/ transducer attached to tube senses minimum deflection.
  • Sensors/transducers (1) are provided at the side wall of the tyre.
  • the sensors/ transducers are to be fitted at that part of the side wall where maximum deformation is possible.
  • a belt like structure (2) can be fitted to the tube inside tyre.
  • a hole like structure (3) is provided to attach the belt like structure on the valve and the valve of the tube is used as a reference point and restricts the movement of the belt like structure with ends having attaching means to make a closed loop like structure, where sensor/ transducer is embedded in such locations where maximum deformation takes place.
  • the place of coupling said transducer on the side wall is that place where the deformation of the tire is, maximum.
  • the periodic deformation of the side wall, while the tyre is rolling s is captured and transmitted by capturing and transmitting means (10) to ECU arid the ECU compares the input from the transducer unit and with predetermined conditions and accordingly sends signal to the dashboard.
  • Individual pressure conditions of tyres are displayed on dashboard.
  • the transmission of the readings is preferably done by wireless transmission means.
  • Said wireless transmission means is preferably attached to the wheel.
  • the dashboard shows the tire arrangement in a two dimensional display unit which is replica of the wheel arrangement of the vehicle so that the driver can easily know the pressure range of each tire and can also make a comparison of the tyres and accordingly take preventive maintenance steps or curative steps.
  • tachometer is provided in every wheel to read the revolutions per minute of every wheel and comparison is done between revolutions of every wheel, to know whether there is a possibility of skidding depending upon the air pressure of the tyres and rpm of each wheel.
  • the input of tachometer and input of sensor/transducer is compared in ECU and studied and the output is communicated to the driver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

La présente invention concerne un capteur de pression pneumatique (PPS) pour véhicule, comprenant : un moyen permettant de détecter la déformation de parois latérales ou la distance entre la roue et la partie de sommet du pneu; un moyen permettant de capturer les détails de la déformation ou de la distance; et un moyen permettant de transmettre ladite information à un bloc de commande électronique (ECU) qui envoie en outre un signal au tableau de bord après traitement de ladite information. Ledit moyen de détection de déformation ou de distance comprend une boucle de fil souple (7) dont une extrémité est fixée à un logement (5); ladite boucle de fil passe à travers une entaille de support pour fil du côté interne de la partie de sommet du pneu (8), et l'extrémité libre de ladite boucle de fil passe à travers des récepteurs (6) pour capturer les détails de déformation ou de distance. Des capteurs/transducteurs sont agencés sur la paroi latérale du pneu où peut se trouver la déformation maximale.
PCT/IN2009/000169 2008-03-10 2009-03-12 Capteur de pression pneumatique WO2009113110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN580/DEL/2008 2008-03-10
IN580DE2008 2008-03-10

Publications (1)

Publication Number Publication Date
WO2009113110A1 true WO2009113110A1 (fr) 2009-09-17

Family

ID=41064807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2009/000169 WO2009113110A1 (fr) 2008-03-10 2009-03-12 Capteur de pression pneumatique

Country Status (1)

Country Link
WO (1) WO2009113110A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713451A1 (de) * 1976-03-29 1978-02-16 Gould Inc Geraet zur anzeige der mechanischen ueberlastung von reifen
US20040155764A1 (en) * 2003-02-10 2004-08-12 Honda Motor Co., Ltd. Tire pressure detection system and a wheel used therein
DE102004054762A1 (de) * 2003-11-13 2005-06-23 The Yokohama Rubber Co., Ltd. Warnvorrichtung für Reifen und pneumatischer Reifen
DE102005001491A1 (de) * 2004-01-13 2005-08-11 Toyota Jidosha K.K., Toyota Reifenzustands-Anzeigevorrichtung
JP2007083905A (ja) * 2005-09-22 2007-04-05 Masahide Yagishita タイヤ内情報検出装置
US20070175554A1 (en) * 2005-12-13 2007-08-02 Michelin Recherche Et Technique S.A. Patch for fixing an electronic system to a tire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713451A1 (de) * 1976-03-29 1978-02-16 Gould Inc Geraet zur anzeige der mechanischen ueberlastung von reifen
US20040155764A1 (en) * 2003-02-10 2004-08-12 Honda Motor Co., Ltd. Tire pressure detection system and a wheel used therein
DE102004054762A1 (de) * 2003-11-13 2005-06-23 The Yokohama Rubber Co., Ltd. Warnvorrichtung für Reifen und pneumatischer Reifen
DE102005001491A1 (de) * 2004-01-13 2005-08-11 Toyota Jidosha K.K., Toyota Reifenzustands-Anzeigevorrichtung
JP2007083905A (ja) * 2005-09-22 2007-04-05 Masahide Yagishita タイヤ内情報検出装置
US20070175554A1 (en) * 2005-12-13 2007-08-02 Michelin Recherche Et Technique S.A. Patch for fixing an electronic system to a tire

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