WO2010015270A1 - Ensemble roue de véhicule - Google Patents

Ensemble roue de véhicule Download PDF

Info

Publication number
WO2010015270A1
WO2010015270A1 PCT/EP2008/006899 EP2008006899W WO2010015270A1 WO 2010015270 A1 WO2010015270 A1 WO 2010015270A1 EP 2008006899 W EP2008006899 W EP 2008006899W WO 2010015270 A1 WO2010015270 A1 WO 2010015270A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
vehicle wheel
housing
assembly according
wheel assembly
Prior art date
Application number
PCT/EP2008/006899
Other languages
English (en)
Inventor
Laurens Verhulst
Igor Dorrestijn
Hendrikus Jan Kapaan
Jens Graf
Original Assignee
Ab Skf
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 Ab Skf filed Critical Ab Skf
Priority to PCT/EP2008/006899 priority Critical patent/WO2010015270A1/fr
Publication of WO2010015270A1 publication Critical patent/WO2010015270A1/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
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • 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
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0491—Constructional details of means for attaching the control device
    • B60C23/0498—Constructional details of means for attaching the control device for rim attachments

Definitions

  • the present invention relates to a vehicle wheel assembly comprising a wheel rim and a sensor device, wherein the sensor device is provided on an annular midsection of the wheel rim.
  • Maintaining proper tire inflation is important for a number of reasons. Optimal tire performance, longer tire life and improved ride comfort, steering control and stopping distance can be achieved by maintaining pneumatic tire pressure at a correct pre-determined level. Traditionally, this is done by performing manual gauge checks on a regular basis and adjusting the tire pressure accordingly. In order to dispense with the necessity of manual checks, modern vehicles are increasingly being fitted with tire pressure management systems, which monitor the measurement data from a wireless pressure sensor mounted on the wheel rim.
  • a pressure sensor to the wheel rim.
  • the sensor can be tied and fixed around an annular midsection of the wheel rim using a fastening strap.
  • This requires different strap lengths for different sizes of vehicle wheel.
  • an extremely high strap tension is required, which is liable to damage the sensor.
  • Both the aforementioned methods of attachment also have the disadvantage that the tire needs to be removed before the sensor can be mounted. When the tire is then stretched over the wheel rim flanges and properly positioned on the wheel rim, there is a major risk of damaging the sensor during the tire- mounting process.
  • Such a sensor is disclosed in US 2004/0263324. There is still room for improvement, however.
  • a further object of the invention is to define a vehicle wheel rim with a standardized sensor-mounting portion, to enable sensor devices with the same predetermined dimensions to be used on wheel assemblies of different wheel rim diameter.
  • a still further object of the invention is to define a method of attaching a sensor device to a vehicle wheel rim.
  • a vehicle wheel assembly comprising a wheel rim and a sensor device provided on an annular midsection of the wheel rim.
  • the sensor device is provided on a sensor-mounting portion of the annular midsection and a non-circular assembly opening is arranged in the sensor-mounting portion, defining an open connection between a tire side of the wheel rim and a hub side of the wheel rim.
  • the non- circular assembly opening is dimensioned with respect to a housing of the sensor device such that in a first orientation of the sensor housing relative to the assembly opening, the housing is able to pass through the assembly opening, while in a second orientation of the housing relative to the assembly opening, the housing fully covers the assembly opening.
  • the assembly opening has a maximum dimension (length) that is greater than the width of the sensor housing and less than the length of the sensor housing.
  • the sensor housing can be inserted through the assembly opening from the hub-side of the wheel rim and then rotated to the correct orientation on the tire side of the wheel rim so as to cover the assembly opening.
  • the sensor-mounting portion comprises a receiving surface that is adapted to be in contact with a mating surface of the sensor housing.
  • the receiving surface of the sensor-mounting portion and the mating surface of the housing have a mating geometry, to facilitate proper sealing between the tire side and the hub side of the assembly opening.
  • the sensor housing is provided with a compressible seal on part of the mating surface that is adapted to be in contact with the receiving surface of the sensor- mounting portion.
  • the receiving surface of the sensor- mounting portion is recessed with respect to a tire-side surface of the annular midsection.
  • the recessed section is an indentation pressed in the annular midsection and the non-circular assembly opening is provided in the indentation.
  • the indentation can have a predetermined depth, such that when the sensor housing is mounted over the assembly opening, the radially outer surface of the housing does not protrude above the tire-side surface of the annular midsection.
  • the receiving surface of the sensor mounting portion and the mating section of the sensor housing have a standardized geometry with respect to each other, which can be executed regardless of wheel rim diameter.
  • the receiving surface is executed as a flat surface.
  • the advantage of a flat surface is that the interface between the sensor housing and the sensor mounting portion is easier to seal.
  • a flat receiving surface means that the geometry of the sensor housing need not depend on the wheel rim diameter.
  • the sensor mounting portion can also have a curved receiving surface.
  • the receiving surface is then provided with a predetermined curvature and the mating section of the sensor housing is designed with a corresponding curvature such that a proper seal is achieved between the tire side and hub side of the assembly opening.
  • a receiving surface of standardized yoorneiry can be created using, for example, a pressing die of predetermined shape and dimensions.
  • the annular midsection is provided with one or more additional recessed sections, evenly distributed around the circumference.
  • the one or more additional recessed sections have the same depth and geometry as the sensor mounting portion, but with no opening. The absence of the opening compensates for the weight of the sensor device.
  • the sensor housing comprises an insertion portion that is shaped and dimensioned to fit in the non-circular assembly opening.
  • the assembly opening and insertion portion have a shape with no sharp corners. An ellipse or a rectangle with rounded corners are preferred shapes for the assembly opening and insertion portion.
  • the sensor housing comprises a threaded hole and the housing can be secured to the wheel rim by a protective cover that is screwed to the housing from the hub-side of the wheel rim.
  • the protective cover also serves to keep out dirt and moisture.
  • the sensor device comprises sensing means to at least measure vehicle tire pressure.
  • the sensor device can also comprise a temperature sensor.
  • the sensor housing can be made from a plastic material or at least in part from metal.
  • the advantage of a housing that is made from a metal, such as sheet steel, or at least comprises metal sections is that a metal-to-metal contact interface can be created between the housing and the receiving surface of the sensor-mounting portion.
  • the device further comprises a power source, such as a battery, and electronic means for wireless transmission of the values measured by the one or more sensing means.
  • processing of the measured values is performed by processing means of the sensor device.
  • only status is transmitted.
  • the sensor device comprises a pressure valve with an air inlet and outlet for inflating the tire and releasing pressure.
  • the sensor device can also be equipped with mechanical and electronic means for active tire pressure control.
  • a wheel assembly according to the invention has many advantages.
  • the sensor device can be dismounted from the wheel rim and replaced without having to remove the tire.
  • the wheel rim can readily be provided with a universal sensor-mounting portion that can be applied on a large range of wheel rim sizes.
  • Fig. 1 shows a perspective view of a wheel rim according to the invention
  • Fig. 2a shows a cross-section of the wheel rim of Fig. 1 , provided with a sensor device according to the invention, viewed in circumferential direction;
  • Fig. 2b shows a cross-section of the wheel rim of Fig. 1 , provided with a sensor device according to the invention, viewed in axial direction;
  • Fig. 3 shows a cut perspective view a wheel rim and sensor device according to the invention, prior to mounting.
  • Fig. 1 shows a perspective view of one embodiment of a vehicle wheel rim according to the invention.
  • the wheel rim 10 serves to support and retain an inflated wheel tire.
  • the tire (not shown) has a toroidal shaped elastomer carcass with at least one reinforcing ply embedded in the carcass.
  • the radially inner ends of the reinforcing ply are turned up around a pair of bead wires, thereby forming a bead section at the axially outer ends of the tire bore.
  • Each bead section comprises a bead sole, a bead heel and a bead toe.
  • the vehicle wheel rim 10 is adapted to receive the bead sections and accordingly comprises a bead seating area 12 at an inboard and outboard end of the wheel rim, on which the bead sole rests.
  • the wheel rim further comprises a rim flange 14, which retains the bead heel of the tire, and to retain the bead toe, the wheel rim comprises a lip 16 at the axially inner edge of the bead seating area12.
  • the wheel rim further comprises an annular midsection 20, which generally has a smaller diameter than the diameter of the bead seating areas 12.
  • the annular midsection 20 has a smaller diameter so that when a tire bead section is forcefully distorted to allow it to pass over a wheel rim flange 14 and lip 16, the part of the bead section that has been passed over the lip 16 can be dropped into the annular midsection 20, which allows the diametrically opposite part of the bead section to be forced over the rim flange 14 and lip 16.
  • both bead sections can eventually be properly seated in the seating areas 12.
  • the tire can then be inflated by means of an air pressure valve.
  • the wheel rim 10 thus further comprises an aperture 18 to accommodate the valve stem, which in the embodiment shown is located in a side surface of a lip 16.
  • an auxiliary component mounted on the wheel rim 10 such as a pressure sensor or a mounting bracket for a pressure sensor, is likely to get damaged during the process.
  • Modern vehicles, especially heavy goods vehicles are often provided with a tire pressure management system, and this necessitates fitting the wheel rim with a sensor device. If the device needs to be replaced, it is advantageous if this can be done without removing the tire. Similarly, if the tire needs to be replaced, it is advantageous if this can be done without damaging the sensor device.
  • the wheel rim of Fig. 1 provides these advantages.
  • the annular midsection 20 of the wheel rim 10 comprises a sensor mounting portion 24 in which a non-circular assembly opening 22 is arranged.
  • the sensor mounting portion 24 further comprises a receiving surface that is adapted to mate with a corresponding surface of a sensor device.
  • the non-circular assembly opening 22 has a maximum dimension x measured in a plane parallel to an axis of the wheel rim.
  • the maximum dimension x can be oriented in any direction, and is large enough such that a suitably adapted sensor device can be passed through the opening 22.
  • This enables the device to be mounted to a tire side of the wheel rim via a hub side of the wheel rim.
  • the sensor device can be dismounted via the hub side.
  • the mounting and dismounting process can be performed while the tire is still in place.
  • Fig. 2a and Fig. 2b show cross-sections of the same embodiment of a sensor device according the invention mounted on the sensor-mounting portion 24 of the wheel rim of Fig. 1.
  • Fig. 2a shows the cross-section in a circumferential view
  • Fig. 2b shows the cross section in an axial view.
  • the tire-side of the wheel rim is indicated by reference numeral 27 and reference numeral 29 is used to indicate the hub side.
  • the sensor device has a sensor housing 26, which is dimensioned to allow the housing to pass through the assembly opening 22 when the housing is positioned with a radial orientation (i.e. vertically).
  • the housing 26 is further dimensioned such that it is large enough to fully cover the opening 26 when it has the required circumferential orientation (i.e. horizontal position).
  • the sensor housing 26 is therefore mounted at the tire side 27 of the wheel rim and serves to seal the tire side from the hub side 29.
  • the sensor housing 26 has a length I and a width w
  • the assembly opening 22 has a length x and a width y.
  • the length I and the width w of the sensor housing are greater than the length x and the width y of the assembly opening, so that the housing 26 fully covers the opening 22; and the length x of the assembly opening is greater than the width w of the sensor housing, so that the housing can pass though the opening.
  • the sensor housing 26 preferably has an insertion portion 28 that is adapted to fit inside the assembly opening 22. In the embodiment shown in Fig.
  • the assembly opening 22 has an elliptical shape.
  • the insertion portion 28 is correspondingly shaped.
  • Other geometries are possible, but in view of avoiding stress-concentration points, the non-circular assembly opening 22 and insertion portion 28 are preferably shaped with rounded corners.
  • the sensor housing 26 suitably comprises a seal 30 that is adapted to seal against a receiving surface 24s of the sensor- mounting portion 24.
  • the seal 30 is compressible, such that a contact interface 40 exists between the receiving surface 24s and a mating section of the sensor housing 26.
  • Vehicle wheel rims come in a variety of diameters, depending on the size and weight of the vehicle.
  • the receiving surface 24s of the sensor mounting portion and the mating section of the sensor housing 26 have a mating geometry, which geometry can be executed regardless of wheel rim diameter. In the embodiment shown in the figures, this is achieved in that the receiving surface 24s is executed as a flat surface and the mating section of the sensor housing in contact with the receiving surface 24s is also flat. Such a configuration is, of course, insensitive to wheel rim diameter.
  • the receiving surface 24s may be provided with a predetermined curvature, whereby the mating section of the sensor housing is provided with a corresponding curvature.
  • a flat receiving surface and a flat mating section have the advantage of being easier seal.
  • One way of producing a sensor-mounting portion that can be applied on wheel rims of varying diameter is by pressing an indentation in the annular midsection 20 using a die with a predetermined shape. An assembly opening with predetermined dimensions can then be provided in the indentation, by means of e.g. a punching operation. As discussed, the indentation can have a flat receiving surface 24s or a receiving surface with a predefined curvature.
  • the receiving surface 24s of the sensor-mounting portion is recessed with respect to a tire-side surface 20s of the annular midsection.
  • the depth d of the recess can be such that when the sensor housing 26 is mounted over the assembly opening 22, a radially outer surface of the sensor housing does not protrude above the tire-side surface 20s of the annular midsection 20.
  • the depth d of the recess in the sensor-mounting portion can also be a standardized dimension, to ensure that in wheel assemblies according to the invention, the annular midsection 20 of the wheel rim is free of protrusions.
  • the annular midsection 20 with one or more additional recesses having the same depth and geometry as the sensor-mounting portion 24, but with no opening.
  • the one or more additional recesses are evenly spaced around the circumference of the annular midsection 20.
  • the pressure exerted on the radially outer side of the sensor housing 26 will force the compressible seal 30 against the receiving surface 24s of the sensor mounting portion.
  • the air pressure of the fully inflated tire is sufficient to keep the sensor housing in the required position.
  • tire pressure is lost, however, there is then a risk that the sensor housing 26 will fall out of the sensor-mounting portion 24 into the area between the deflated tire and the annular midsection.
  • the radially inner side of the insertion portion 28 may be fitted with a rotatable clip 38.
  • This clip is more clearly illustrated in Fig. 3, which shows a cut perspective view of the sensor device prior to its attachment on the sensor mounting portion 24.
  • Fig. 3 shows a cut perspective view of the sensor device prior to its attachment on the sensor mounting portion 24.
  • the sensor housing can be secured to the sensor-mounting portion with the aid of a protective cover.
  • the sonsor housing 26 is provided with a threaded hole 32, to enable a protective cover 34 to be screwed to a radially inner side of the housing.
  • the protective cover 34 is larger than the assembly opening 22 and the cover therefore engages with the hub-side surface of the sensor-mounting portion 24 when it is attached to the sensor housing with e.g. a screw 36.
  • the protective cover also serves to keep out dirt and moisture.
  • the sensor housing 26 and protective cover 34 have a connection to each other, such as a tether 42, as shown on Fig. 3.
  • the tether 42 facilitates the mounting and dismounting process, as it prevents the sensor housing 26 dropping into the space between the annular midsection and the tire.
  • the protective cover 34 can be large enough such that it cannot pass through the assembly opening, to eliminate any chance of the housing 26 plus cover 34 falling into the tire- side space.
  • the sensor device comprises at least a pressure sensor to measure vehicle tire pressure.
  • the sensor device can also comprise a temperature sensor.
  • the housing 26 of the sensor device can be made from a plastic material or at least in part from a metal.
  • the advantage of a housing that is at least partly made from metal, e.g. sheet steel, is that a metal-to-metal contact interface 40 can be created between the housing and the receiving surface 24s of the sensor mounting portion, as shown on Fig 2b.
  • the metal-to-metal contact interface 40 enables the transmission of vibrations, meaning that the sensor device can further comprise a vibration sensor.
  • the device further comprises a power source, such as a battery, and electronic means for wireless transmission of the values measured by the one or more sensors.
  • the sensor device comprises a pressure valve with an air inlet and outlet for inflating the tire and releasing pressure.
  • the sensor device may also be equipped with mechanical and electronic means for active tire pressure control.

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

Abstract

La présente invention concerne un ensemble roue de véhicule comprenant une jante de roue (10) et un dispositif capteur disposé sur une section intermédiaire annulaire (20) de la jante de roue (10). De façon spécifique, le dispositif capteur est disposé sur une partie de montage de capteur (24) de la section intermédiaire annulaire (20), dans laquelle est réalisée une ouverture d'assemblage non circulaire (22). Selon l'invention, l'ouverture d'assemblage (22) a une dimension maximale (x) qui est supérieure à une largeur maximale du dispositif capteur. Ainsi, le dispositif capteur peut être amené à traverser l'ouverture d'assemblage non circulaire, permettant au dispositif d'être monté et démonté de la jante de roue (10) sans avoir à retirer un pneu de véhicule de la jante de roue.
PCT/EP2008/006899 2008-08-07 2008-08-07 Ensemble roue de véhicule WO2010015270A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/006899 WO2010015270A1 (fr) 2008-08-07 2008-08-07 Ensemble roue de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/006899 WO2010015270A1 (fr) 2008-08-07 2008-08-07 Ensemble roue de véhicule

Publications (1)

Publication Number Publication Date
WO2010015270A1 true WO2010015270A1 (fr) 2010-02-11

Family

ID=40512192

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/006899 WO2010015270A1 (fr) 2008-08-07 2008-08-07 Ensemble roue de véhicule

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110303829A (zh) * 2019-05-31 2019-10-08 韩建波 一种光能胎压智能检测车轮
GB2599613A (en) * 2020-04-29 2022-04-13 Tpms Tape Ltd Internal sensor fixing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243854A1 (de) * 1982-11-26 1984-05-30 Robert Bosch Gmbh, 7000 Stuttgart Pneumatisch betaetigbarer druckschalter zur reifendruckueberwachung
US4843872A (en) * 1987-05-07 1989-07-04 Compagnie Generale Des Etablissements Michelin -Michelin & Cie Support intended to mount on the rim an element used for monitoring tires
DE4100442A1 (de) * 1991-01-09 1992-07-16 Texas Instruments Deutschland Anordnung zur ueberwachung von betriebsparametern von an radfelgen montierten luftreifen eines fahrzeugs
US6904795B1 (en) * 2004-09-14 2005-06-14 Lear Corporation Sealed mounting of tire monitoring assembly
US7328609B1 (en) * 2004-10-29 2008-02-12 National Semiconductor Corporation Wireless pressure sensing Schrader valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243854A1 (de) * 1982-11-26 1984-05-30 Robert Bosch Gmbh, 7000 Stuttgart Pneumatisch betaetigbarer druckschalter zur reifendruckueberwachung
US4843872A (en) * 1987-05-07 1989-07-04 Compagnie Generale Des Etablissements Michelin -Michelin & Cie Support intended to mount on the rim an element used for monitoring tires
DE4100442A1 (de) * 1991-01-09 1992-07-16 Texas Instruments Deutschland Anordnung zur ueberwachung von betriebsparametern von an radfelgen montierten luftreifen eines fahrzeugs
US6904795B1 (en) * 2004-09-14 2005-06-14 Lear Corporation Sealed mounting of tire monitoring assembly
US7328609B1 (en) * 2004-10-29 2008-02-12 National Semiconductor Corporation Wireless pressure sensing Schrader valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110303829A (zh) * 2019-05-31 2019-10-08 韩建波 一种光能胎压智能检测车轮
GB2599613A (en) * 2020-04-29 2022-04-13 Tpms Tape Ltd Internal sensor fixing
GB2599613B (en) * 2020-04-29 2022-09-28 Tpms Tape Ltd Internal sensor fixing

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