EP3237238A1

EP3237238A1 - Tire-pressure-sensor fastening element, valve system, and tire pressure monitoring system for a vehicle

Info

Publication number: EP3237238A1
Application number: EP15790545.6A
Authority: EP
Inventors: Benedikt Gamer
Original assignee: Huf Huelsbeck and Fuerst GmbH and Co KG
Current assignee: Huf Baolong Electronics Bretten GmbH
Priority date: 2014-12-22
Filing date: 2015-11-04
Publication date: 2017-11-01
Also published as: WO2016102111A1; DE102014119430A1

Abstract

The problem addressed by the invention is the creation of a solution for a tire pressure monitoring system (1), which solution enables the universal use of a clamp-in valve in an economical manner and by means of a simple design. This problem is solved by means of a tire-pressure-sensor fastening element (4) having an elongate main body (10), wherein a longitudinal bore (15) extends through the main body (10), wherein the main body (10) has a fastening segment (16), to which a tire pressure sensor (3) can be fastened, at a first of the two longitudinal ends (11) of the main body and a connecting segment (17), to which a valve body (2) can be fastened, at a second of the two longitudinal ends (12) of the main body.

Description

Tire pressure sensor fastener, valve system and tire pressure monitoring system for a vehicle

The invention is directed to a tire pressure sensor fastening element for a valve body with the aid of which a tire pressure sensor can be fastened to a valve body.

Further, the invention is directed to a valve system and a tire pressure monitoring system for a vehicle, each using such a tire pressure sensor mounting member.

Vehicle safety and reliability are key

Aspects in automotive engineering. Therefore, alone for safety reasons, the tire pressure of vehicles or motor vehicles should be checked regularly, but this is often missed by the driver. For this reason, detection devices in the form of tire pressure sensors are increasingly used in modern vehicles, which automatically measure the tire air pressure and send it to a vehicle-side control unit. As a result, defects or accidents, which are due to a low tire air pressure, are avoided. Consequently, this automatic measurement of the

Tire pressure a critical deviation of the measured

Tire pressure from a tire pressure setpoint detected early and displayed to the driver, so that a manual review is unnecessary. In such systems for the automatic measurement of the tire air pressure is one each

Tire pressure sensor on each wheel or pneumatic tire arranged. The tire pressure sensors basically all the same

Main function. They measure the measured tire pressure and

transfer this to an evaluation unit. Nevertheless, they differ in many different ways, for example, different concepts for attaching

Tire pressure sensors are.

A first concept is aimed at special rubber valves, which are also referred to as snap-in valves. Snap-in valves for mounting a tire pressure sensor are different from conventional snap-in valves in that the valve foot has an extension approach to the tire pressure sensor to be attached to the inner tire longitudinal end of the snap-in valve. Snap-in valves have proven their worth in practice due to their ease of assembly, as the installer only needs to retract the snap-in valve with a suitable tool into a hole in the rim until the valve snaps into place. Because snap-in valves for mounting a tire pressure sensor due to the sensor mass significantly higher mechanical

They are usually made up of others

Rubber compounds as conventional snap-in valves. Today's rubber valve tire pressure sensors, along with the valve, weigh approximately 30g, which is more than twice the weight of a conventional snap-in valve. Snap-in valves are therefore usually only up to a maximum of sensor manufacturers

Speed released, in many cases between

180km / h and 210km / h. FIGS. 1 and 2 show a tire pressure monitoring system 100 known from the prior art, as described, for example, in DE 10 2010 050 365 A1. This known tire pressure monitoring system 100 comprises a valve body 110, which acts as a snap-in valve

is formed, a tire pressure sensor 120 and a

Valve body 110 to the tire pressure sensor 120 fixing

Fastener 130. In the example shown, the fastener 130 is formed as a screw. to

Assembly of the valve body 110 to the tire pressure sensor 120, the valve body 110 is inserted with its mounting portion 150 in a formed on the housing 140 of the tire pressure sensor 120 Einsteckaufnahme 160. The insertion receptacle 160 has a bore 170 which is transverse to the insertion of the

Valve body 110 extends and in which as a screw

trained fastener 130 is screwed to secure the valve body 110 to the housing 140.

Another concept for tire pressure sensors based on the connection to a clamp-in valve, which by a

Screw is attached to the rim. Because the

visible surface of this valve unlike the rubber valve is essentially made of metal, this valve is often referred to as a metal valve. Clamp-in valves not only look more sophisticated, they also offer the advantage of being faster than snap-in valves

can be used. The tire pressure sensor can for

Example be attached via a flexible connection to the clamp-in valve. In the case of the flexible connection to the clamp-in valve, the metal valve and the tire pressure sensor are two separate components. Schematically, the flexible connection for a tire pressure monitoring system 200 is shown in FIG. This tire pressure control system 200 in turn comprises a valve body 210, which is designed here as a clamp-in valve, a tire pressure sensor 220 and the

Valve body 210 to the tire pressure sensor 220 fixing

Fastener 230, wherein also in this example

Fastener 230 is formed as a screw which is in a bore in the dome-shaped end face of the

Valve foot is screwed. In the tire pressure monitoring system 200, the housing 240 of the tire pressure sensor 220 is braced against the valve body 210 from the inside of the wheel with the aid of the fastening element 230. The housing 240 and the

Valve body 210 are structurally designed so that both

Components can be screwed to each other at different angles α. This allows different rim contours with a single combination of tire pressure sensor 220 and

Metal valve or valve body 210 are covered. in the

In case of repair, both parts can be replaced separately.

For the two valve types described above, the snap-in valve and the clamp-in valve, there are separate

Versions on sensors, whereby the compatibility of valve and sensor should be ensured. This compatibility has the disadvantage that it is not possible to use clamp-in valves with tire pressure sensors for snap-in valves. Although a snap-in valve is generally cheaper and easier to install than a clamp-in valve. But due to the centrifugal force acting on a snap-in valve is from a maximum

Speed between 180km / h and 210km / h not usable. For these high speeds, a clamp-in valve must be used. In addition, snap-in valve for

Tire pressure sensors exposed to significantly higher loads than standard snap-in valves, which is why it is necessary to replace snap-in valves with every tire change.

The invention has for its object to provide a solution by structurally simple way and

cost-effective a clamp-in valve universal can be used.

This task is solved by a tire pressure sensor

Fastening element for a valve body of a motor vehicle, wherein the tire pressure sensor fastening element has an elongated base body through which a

Longitudinal bore extends through, and wherein the main body at a first of its two longitudinal ends a

Attachment portion to which a tire pressure sensor can be attached, and at a second of its two longitudinal ends a connecting portion to which a valve body can be attached comprises.

The object of the invention is further characterized by a valve

System for a vehicle solved, which a valve body and a tire pressure sensor mounting element according to one of

Claims 1 to 8, wherein the connecting portion of the tire pressure sensor mounting member is screwed into a threaded bore of the valve body.

The object of the invention is finally by a

A tire pressure monitoring system for a vehicle for determining tire-specific parameters, comprising a valve system according to claim 9 or 10 and a tire pressure sensor with a housing, in which means for determining at least one tire-specific parameter and for wireless

Transmission of the at least one tire-specific parameter, preferably to a vehicle-side control unit, are housed, wherein the housing has a mounting portion which is provided with a Einsteckaufnahme complementary to the

Attachment portion of the tire pressure sensor mounting member is formed, and one transverse to the Einsteckaufnahme extending mounting hole is formed, wherein in the plug-in receptacle positively inserted stage the

Threaded hole of the tire pressure sensor mounting member is aligned with the mounting hole of the tire pressure sensor and for attaching the tire pressure sensor to the tire pressure sensor mounting element

Fastener through the mounting hole in the

Threaded hole is screwed.

Advantageous and expedient embodiments and

Further developments of the invention will become apparent from the

Subclaims.

The invention provides a way to use a clamp-in valve universal. With the help of

Tire pressure sensor fastener it is possible

Tire pressure sensors, previously only compatible with snap-in valves, now with clamp-in valves

use. This can be avoided, for example, that the valves must always be replaced with each tire change. In addition, the inventive increases

Tire Pressure Sensor Fastener the usability of a clamp-in valve for a wide variety of tire pressure sensors. It is understood that the tire pressure sensor mounting member according to the present invention is suitable not only for clamp-in valves, but for all types of valves that by default no attachment portion for attaching a

Have tire pressure sensor. The invention

Tire pressure sensor fastener serves as an adapter to attach a tire pressure sensor to a valve body.

In an embodiment of the tire pressure sensor fastening element, the invention provides that the fastening section

at least one has up to the longitudinal bore radially inwardly extending through hole. About these

Through-hole can be supplied to the tire of the vehicle air.

An easy way, the tire pressure sensor on the

Tire pressure sensor mounting element to assemble, is that the attachment portion at least one of the Attaching the tire pressure sensor serving threaded hole. This threaded hole, for example, cooperate with a screw through which the tire pressure sensor is then screwed to the tire pressure sensor mounting element.

To align, for example, the passage opening described above, is in a further embodiment of the

Tire pressure sensor mounting element according to the invention provided that the attachment portion has a

Has anti-rotation causing flattening, which with a trained in the tire pressure sensor insertion

can interact frictionally.

A structurally particularly favorable possibility, a secure connection between the valve body and the

Tire pressure sensor fastener manufacture, is given in a further embodiment of the invention in that the connecting portion into a threaded hole of a

Valve body has screwed external thread.

To prevent the inventive

Tire pressure sensor fastener completely in the

Valve body is screwed, is provided in a further embodiment that the attachment portion has a radially outwardly projecting and serving as a stop surface for a valve body collar. The collar prevents over-tightening the tire pressure sensor fastener.

Furthermore, it is advantageous if in the tire pressure sensor

Fastening element according to the invention, the first longitudinal end of the body in the longitudinal direction with an aligned

Alignment of the connection between the mounting portion and tire pressure sensor serving stage is formed.

To insert the attachment portion in a

To facilitate appropriate insertion of the tire pressure sensor is in a further embodiment of the invention

provided that the first longitudinal end of the main body

having obliquely formed centering surfaces, through which the cross section of the base body tapers towards the first longitudinal end. Finally, the invention provides in an embodiment of the valve system that the valve body as a clamp-in valve

is trained. In fact, the valve body can also be other valve types or snap-in valves which, by default, do not have a fastening section for fastening a tire pressure sensor.

It is understood that the above and

hereinafter to be explained features not only in the combination specified, but also in others

Combinations or alone, without departing from the scope of the present invention. The scope of the invention is defined only by the claims.

Further details, features and advantages of the subject matter of the invention will become apparent from the following description taken in conjunction with the drawings, in which by way of example

preferred embodiment of the invention is shown. In the drawing shows:

Figure 1 is a known from the prior art

Tire pressure monitoring system with a snap-in valve in

Perspective view

FIG. 2 shows the known tire pressure monitoring system from FIG. 1 in a perspective detail view;

Figure 3 shows another, known from the prior art tire pressure monitoring system with a clamp-in valve in

Perspective view

FIG. 4 shows a tire pressure monitoring system according to the invention in a perspective view,

FIG. 5 shows a tire pressure monitoring system according to the invention in a perspective detail view,

Figure 6 is a tire pressure sensor fastener of the in the

Figures 4 and 5 shown tire pressure monitoring system in

lateral view,

FIG. 7 shows the tire pressure sensor fastening element from FIG. 6 in a perspective view;

FIG. 8 shows the tire pressure sensor fastening element from FIG

6 in a plan view and FIG. 9 shows the tire pressure sensor fastening element from FIG. 6 in a perspective sectional view.

The invention shown in Figures 5 and 6

Tire pressure monitoring system 1 is provided for a vehicle and includes a valve body 2, a tire pressure sensor 3, and a tire pressure sensor mounting member 4 via which the

Tire pressure sensor 3 is attached to the valve body 2. The tire pressure sensor 3 has a housing 5, in or on the means for determining at least one tire-specific

Parameters and wireless transmission of the at least one tire-specific parameter to a vehicle-side

Control unit are housed. The means or the means are not apparent from Figures 4 and 5, since they are covered by the housing and housed in this. In which

Means or the means are at least one sensor and at least one antenna, but this is known from the prior art, which is why at this point not to be discussed here on these features.

The housing 5 of the tire pressure sensor 3 has a

Attachment 6, which is formed fireplace or chimney-shaped. This attachment portion 6 is formed with a Einsteckaufnahme 7 and a mounting hole 8. The insertion receptacle 7 is in accordance with the known from the prior art mounting portion 150 for a formed in the manner of a snap-in valve valve body 110th

configured, wherein the mounting hole 8 transverse to

Einsteckaufnahme 7 is formed extending, so that a

Fastener 9, such as a screw, is screwed into the mounting hole 8 and the

Tire pressure sensor 3 is fixed to the valve body 2.

As can be seen in particular from Figure 5, is the

Tire pressure sensor 3 not directly to the valve body. 2

attached. For this purpose, rather, the

Tire pressure sensor 3 attached to the valve body 2

Tire pressure sensor mounting member 4 is provided, which is shown in detail in Figures 6 to 9. The tire pressure sensor fastening element 4 has an elongate main body 10. From the first longitudinal end 11 of the base body 10 extends to its second longitudinal end 12 extending in the longitudinal direction 14 longitudinal bore 15 through the base body 10 therethrough. At the first longitudinal end 11 of the base body 10, a fastening portion 16 is formed, which serves for fastening of the tire pressure sensor 3. At the second longitudinal end 12 of the main body 10 is a

Connecting portion 17 is formed, which serves for fastening of the valve body 2.

The connecting portion 17 has an external thread 18 not visible from the figures, so that the tire pressure fastening element 4 can be screwed with its connecting portion 17 in a longitudinal and formed on the valve foot threaded bore 19 of the valve body 2. Accordingly, the tire pressure fixing member 4 provides a kind

Adapter piece, with a valve body without

Attachment portion 150 is connectable to a tire pressure sensor. When the connecting portion 17 of the tire pressure sensor mounting member 4 in the threaded bore 19 of

Valve body 2 is screwed, then form the valve body 2 and the tire pressure sensor mounting member 4 together a valve system 20, on which the tire pressure sensor. 3

can be attached.

Thus, the tire pressure sensor mounting member 4 and the

Tire pressure sensor 3 can be connected to each other, the male receptacle 7 is formed complementary to the mounting portion 16 of the tire pressure sensor mounting member 4. For this purpose, the attachment section 16 has a flattening 21, the insertion receptacle 7 being complementary to the flattening 21

is formed, so that the tire pressure sensor mounting element 4 and thus the valve body 2 always have a corresponding orientation, when with the

Tire pressure sensor 3 are connected. In addition, the flattening 21 also causes an anti-rotation, wherein the flattening 21 with the in the housing 5 of the tire pressure sensor. 3

formed Einsteckaufnahme 7 frictionally cooperates. The attachment portion 16 further includes a radially outwardly projecting collar 22 which serves as a stop surface for the valve body 2, so that the tire pressure sensor fastening element 4 is not screwed too deeply into the threaded bore 19 of the valve body 2.

At the first longitudinal end 11 of the main body 10 of the

Tire pressure sensor mounting member 4 is formed a the flat 21 opposite step 23. The step 23 is for aligning the connection between the

Attachment portion 16 and the tire pressure sensor 3. When the first longitudinal end 11 of the tire pressure sensor mounting element 4 is inserted into the Einsteckaufnahme 7 and the step 23 positively abuts an inner wall of the Einsteckaufnahme 7, then a threaded bore 24 which in the

Attachment portion 16 of the tire pressure sensor mounting element 4 is formed, aligned in alignment with the transverse to the Einsteckaufnahme 7 extending mounting hole 8 of the tire pressure sensor 3. In this position, then executed in the manner of a screw fastener 9 can be screwed through the mounting hole 8 of the tire pressure sensor 3 in the threaded bore 24 to attach the tire pressure sensor 3 to the tire pressure sensor mounting member 4.

To facilitate the mating of the

Tire pressure sensor fastener 4 and the

Tire pressure sensor 3 are at the first longitudinal end 11 of

Base body 10 obliquely formed centering 25 formed through which the cross section of the body 10 tapers to the first longitudinal end 11.

It should be noted that the attachment portion 16 has a up to the longitudinal bore 15 radially inwardly extending through hole 26. About this passage opening 26, the tire of the vehicle air can be supplied.

In summary, a tire pressure monitoring system 1 for a vehicle for determining tire-specific parameters has been described above. The tire pressure monitoring system 1 comprises the valve system 20 and the tire pressure sensor 3, wherein the valve System 20 further comprises the valve body 2 and the tire pressure sensor fastening element 4 according to the invention.

Of course, the invention described above is not limited to the described and illustrated embodiment. It can be seen that in the embodiment shown in the drawing numerous, the expert

according to the intended application obvious

Amendments can be made without departing from the scope of the invention. The invention includes everything that is contained in the description and / or in the

Drawing, including what is different from the specific embodiment for the expert

close.

Claims

claims

A tire pressure sensor mounting member (4) for a valve body (2),

wherein the tire pressure sensor mounting element (4) has an elongate base body (10) through which a longitudinal bore (15) extends, and

wherein the base body (10) at a first of its two longitudinal ends (11) has a mounting portion (16) on which a tire pressure sensor (3) can be attached, and at a second of its two longitudinal ends (12)

Connecting portion (17) to which a valve body (2) can be attached has.

2. tire pressure sensor fastening element (4) according to claim

1, wherein the attachment portion (16) has at least one passage opening (26) extending radially inward up to the longitudinal bore (15).

3. Tire pressure sensor mounting element (4) according to claim

1 or 2, wherein the attachment portion (16) at least one for fastening the tire pressure sensor (3) serving

Has threaded hole (24).

4. tire pressure sensor fastening element (4) according to one of the preceding claims, wherein the fastening portion

(16) has a flattening (21) which effects an anti-rotation lock and which is provided with a flattening in the tire pressure sensor (3).

trained Einsteckaufnahme (7) non-positively

can interact.

5. tire pressure sensor fastening element (4) according to one of the preceding claims, wherein the connecting portion

(17) in a threaded bore (19) of a valve body (2) screwed external thread (18).

6. Tire pressure sensor mounting element (4) according to one of the preceding claims, wherein the attachment portion (16) has a radially outwardly projecting and as

Stop surface for a valve body (2) serving collar (22).

7. Tire pressure sensor mounting element (4) according to one of the preceding claims, wherein the first longitudinal end (11) of the base body (10) in the longitudinal direction (14) with a for aligning the connection between

Attachment section (16) and tire pressure sensor (3) serving stage (23) is formed.

8. Tire pressure sensor fastening element (4) according to one of the preceding claims, wherein the first longitudinal end (11) of the base body (10) obliquely formed

Centering surfaces (25) through which the cross section of the base body (10) tapers towards the first longitudinal end (11).

9. Valve system (20) for a vehicle, comprising

a valve body (2) and

A tire pressure sensor mounting member (4) according to any one of claims 1 to 8,

wherein the connecting portion (17) of the tire pressure sensor fastening element (4) is screwed into a threaded bore (19) of the valve body (2).

10. Valve system (20) according to claim 9, wherein the

Valve body (2) is designed as a clamp-in valve.

11. A tire pressure monitoring system (1) for a vehicle for determining tire-specific parameters, comprising

a valve system (20) according to claim 9 or 10 and

a tire pressure sensor (3) having a housing (5) in which means for determining at least one

tire-specific parameter and for the wireless transmission of the at least one tire-specific parameter, preferably to a vehicle-side control unit,

are housed,

wherein the housing (5) has a fastening region (6) which is provided with an insertion receptacle (7) which is complementary to the fastening section (16) of the tire pressure sensor fastening element (4) and a fastening bore extending transversely to the insertion receptacle (7) ( 8) is formed,

wherein in the insertion receptacle (7) positively inserted step (23), the threaded bore (24) of the

Tire pressure sensor mounting member (4) aligned with the mounting hole (8) of the tire pressure sensor (3)

is aligned and for attaching the tire pressure sensor (3) to the tire pressure sensor mounting element (4)

Fixing element (9) through the mounting hole (8) is screwed into the threaded bore (24).