DE3741700A1 - Measuring system for motor vehicles - Google Patents
Measuring system for motor vehiclesInfo
- Publication number
- DE3741700A1 DE3741700A1 DE19873741700 DE3741700A DE3741700A1 DE 3741700 A1 DE3741700 A1 DE 3741700A1 DE 19873741700 DE19873741700 DE 19873741700 DE 3741700 A DE3741700 A DE 3741700A DE 3741700 A1 DE3741700 A1 DE 3741700A1
- Authority
- DE
- Germany
- Prior art keywords
- measuring system
- pressure
- film
- tire
- sensitive film
- 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.)
- Withdrawn
Links
- 238000011156 evaluation Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 3
- 238000011161 development Methods 0.000 description 3
- 101100390562 Mus musculus Fen1 gene Proteins 0.000 description 1
- 101100119953 Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1) fen gene Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- 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
- B60C19/00—Tyre parts or constructions not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
- G01G19/035—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion using electrical weight-sensitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/12—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having electrical weight-sensitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/13—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing having piezoelectric or piezoresistive properties
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Tires In General (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Meßsystem für Kraftfahrzeuge nach der Gattung des Hauptanspruchs.The invention relates to a measuring system for motor vehicles the genus of the main claim.
Ein derartiges Meßsystem ist bekannt (DE-OS 32 18 806). Bei dieser bekannten Bauart wird die Radlast mittels Gewichtsmesser gemessen und an einem Prüfstand registriert.Such a measuring system is known (DE-OS 32 18 806). At this Known design, the wheel load is measured using a weight meter and registered on a test bench.
Ein solches Meßsystem hat den Nachteil, daß es nur stationär anwend bar ist und daß die ermittelten Werte den tatsächlichen Fahrbedin gungen keine Rechnung tragen.Such a measuring system has the disadvantage that it is only used stationary bar and that the determined values correspond to the actual driving conditions not take into account.
Das eingangs genannte Meßsystem mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß es auch während der Fahrt Meßwerte liefert und daß außer dem modifizierten Rad-Rei fen keine zusätzlichen Abtaster wie Räder oder Gestänge notwendig sind.The measuring system mentioned at the beginning with the characteristic features the main claim has the advantage that it also during provides measured values for the journey and that in addition to the modified Rad-Rei no additional sensors such as wheels or rods are necessary are.
Des weiteren ist es von Vorteil, daß das Meßsystem nur wenig Masse hat und daß diese Masse am Radreifen weitgehend gleichmäßig verteilt werden kann, so daß keine Unwucht entsteht.Furthermore, it is advantageous that the measuring system has little mass and that this mass is largely evenly distributed on the wheel tire can be so that there is no imbalance.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung darge stellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen: Fig. 1 das an einem Reifen angebrachte Meßsystem und Fig. 2 eine Abwicklung vom Reifen und von der Piezzo-Folie.An embodiment of the invention is shown in the drawing and Darge explained in more detail in the following description. In the drawings: Figure 1 shows the tire mounted on a measuring system, and Figure 2 is a development of the tire and of the piezo foil...
Ein Kraftfahrzeug-Reifen 1 sitzt auf einer Felge 2, die ein Reifen füllventil 3 trägt. Der Reifen 1 hat eine Lauffläche 4, auf der eine druckempfindliche Folie, insbesondere eine Piezzo-Folie 5 angeordnet ist. Die Folie 5 ist in einen Schutzmantel 6 gehüllt, welche die Folie 5 vor Abrieb und Feuchtigkeit schützt. Sie kann aber auch um einen geringen Betrag in die Reifenoberfläche eingelassen sein, dann kann der Schutzmantel 6 entfallen.A motor vehicle tire 1 sits on a rim 2 , which carries a tire fill valve 3 . The tire 1 has a tread 4 on which a pressure-sensitive film, in particular a piezo film 5 , is arranged. The film 5 is wrapped in a protective jacket 6 , which protects the film 5 from abrasion and moisture. However, it can also be embedded in the tire surface by a small amount, in which case the protective jacket 6 can be omitted.
Die Piezzo-Folie 5 hat zwei Signalabgriffe 7 und 8 (Fig. 2), die über einen Kabelstrang 9, der radial am Reifen 1 entlang im wesent lichen in Richtung zu einer Radachse 10 hin verläuft, und dort zu einer am Reifen angeordneten elektronischen Koppelstelle 11 führt. Von dort werden die Signale über einen Drehübertrager in der Form einer magnetischen Koppelung 18 an eine fahrzeugfeste Auswertestelle 19 gegeben.The piezo film 5 has two signal taps 7 and 8 ( FIG. 2), which runs via a cable harness 9 which runs radially along the tire 1 in the direction of a wheel axis 10 and there to an electronic coupling point arranged on the tire 11 leads. From there, the signals are given via a rotary transformer in the form of a magnetic coupling 18 to an evaluation point 19 fixed to the vehicle.
Die Fig. 2 zeigt eine Abwicklung 12 des Reifens 1. Die Länge der Reifen-Abwicklung 12 ist auf eine Abwicklung 13 der Piezzo-Folie 5 projeziert. Es ist zu erkennen, daß die Piezzo-Folie 5 nach ihrer Montage von ihrem Aufbau her ein Band mit durchweg gleicher Breite ist. Die Folie 5 ist zu ihren beiden Enden 14 und 15 hin zwecks Überlappung verjüngt. Die Verjüngungsteile 16 und 17 werden bei der Montage der Folie 5 entlang der Lauffläche nebeneinander gelegt. Die Folie 5 muß aber keinen geschlossenen Kreis bilden. Die Signalab griffe 7 und 8 sind an der jeweils breitesten Stelle angeordnet, so daß der Abgriff an diesen breitesten Stellen erfolgt. Fig. 2 shows a processing 12 of the tire 1. The length of the tire development 12 is projected onto a development 13 of the piezo film 5 . It can be seen that the piezo film 5 is a ribbon with its same width throughout after assembly. The film 5 is tapered towards its two ends 14 and 15 for the purpose of overlapping. The tapered parts 16 and 17 are placed next to each other during the assembly of the film 5 along the tread. The film 5 does not have to form a closed circle. The Signalab handles 7 and 8 are arranged at the widest point, so that the tap is made at these widest points.
Mit einem solchen Meßsystem kann die Kontaktkraft zwischen dem Rei fen 1 und der Fahrbahn während der Fahrt ermittelt werden.With such a measuring system, the contact force between the fen 1 and the road surface can be determined while driving.
Die Piezzo-Folie 5 liefert bei einer mechanischen Beanspruchung, hier also bei einer Druckbelastung, ein beanspruchungsproportionales Spannungs- oder Ladungssignal. Auf diese Weise wird hier die dynami sche Kontaktkraft während des Rollvorganges des Reifens 1 ermittelt. Die über den Kabelstrang 9 zu der elektronischen Auswertestelle 19 gelangenden Meßsignale werden dort elektronisch bearbeitet und zu einer beliebigen Anzeige- oder Speicherstelle am Fahrzeug weiterge leitet.The piezo film 5 delivers a stress-proportional voltage or charge signal in the event of mechanical stress, that is to say here under a pressure load. In this way, the dynamic contact force cal during the rolling process of the tire 1 is determined. The measuring signals coming through the cable harness 9 to the electronic evaluation point 19 are processed electronically there and forwarded to any display or storage location on the vehicle.
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873741700 DE3741700A1 (en) | 1987-12-09 | 1987-12-09 | Measuring system for motor vehicles |
| JP31028388A JPH01195331A (en) | 1987-12-09 | 1988-12-09 | Measuring apparatus for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873741700 DE3741700A1 (en) | 1987-12-09 | 1987-12-09 | Measuring system for motor vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3741700A1 true DE3741700A1 (en) | 1989-06-22 |
Family
ID=6342198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873741700 Withdrawn DE3741700A1 (en) | 1987-12-09 | 1987-12-09 | Measuring system for motor vehicles |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01195331A (en) |
| DE (1) | DE3741700A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105298C1 (en) * | 2001-02-02 | 2002-08-14 | Fag Automobiltechnik Ag | Wheel bearing unit for measuring the contact forces between tires and road |
| WO2004065145A1 (en) * | 2003-01-17 | 2004-08-05 | Vasasensor Ab | Sensor arrangement |
| US7406876B2 (en) | 2003-01-17 | 2008-08-05 | Vasensor Ab | Sensor arrangement |
| DE10329700B4 (en) * | 2003-07-02 | 2016-12-15 | Continental Automotive Gmbh | Method and device for determining the tire inflation pressure and the wheel load of a vehicle tire |
| AT525992A4 (en) * | 2022-11-30 | 2023-10-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be placed against one another under the influence of force |
| AT526049B1 (en) * | 2022-11-30 | 2023-11-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be positioned against one another under the influence of force |
-
1987
- 1987-12-09 DE DE19873741700 patent/DE3741700A1/en not_active Withdrawn
-
1988
- 1988-12-09 JP JP31028388A patent/JPH01195331A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105298C1 (en) * | 2001-02-02 | 2002-08-14 | Fag Automobiltechnik Ag | Wheel bearing unit for measuring the contact forces between tires and road |
| WO2004065145A1 (en) * | 2003-01-17 | 2004-08-05 | Vasasensor Ab | Sensor arrangement |
| US7406876B2 (en) | 2003-01-17 | 2008-08-05 | Vasensor Ab | Sensor arrangement |
| CN100515807C (en) * | 2003-01-17 | 2009-07-22 | Vasa传感器股份公司 | Sensor arrangement |
| DE10329700B4 (en) * | 2003-07-02 | 2016-12-15 | Continental Automotive Gmbh | Method and device for determining the tire inflation pressure and the wheel load of a vehicle tire |
| AT525992A4 (en) * | 2022-11-30 | 2023-10-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be placed against one another under the influence of force |
| AT525992B1 (en) * | 2022-11-30 | 2023-10-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be placed against one another under the influence of force |
| AT526049B1 (en) * | 2022-11-30 | 2023-11-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be positioned against one another under the influence of force |
| AT526049A4 (en) * | 2022-11-30 | 2023-11-15 | Net Automation Gmbh | Device for detecting the pressure forces between two bodies that can be positioned against one another under the influence of force |
| WO2024112987A1 (en) | 2022-11-30 | 2024-06-06 | NET-Automation GmbH | Device for detecting pressure forces between two bodies which can be placed against each other under the effect of a force |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01195331A (en) | 1989-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |