JPH01195331A - Measuring apparatus for automobile - Google Patents
Measuring apparatus for automobileInfo
- Publication number
- JPH01195331A JPH01195331A JP31028388A JP31028388A JPH01195331A JP H01195331 A JPH01195331 A JP H01195331A JP 31028388 A JP31028388 A JP 31028388A JP 31028388 A JP31028388 A JP 31028388A JP H01195331 A JPH01195331 A JP H01195331A
- Authority
- JP
- Japan
- Prior art keywords
- foil
- measuring device
- tire
- pressure
- signal
- 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.)
- Pending
Links
- 239000011888 foil Substances 0.000 claims abstract description 30
- 238000011156 evaluation Methods 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005303 weighing 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
【発明の詳細な説明】
産業上の利用分野
本発明は、タイヤと道路との間の接触力を検出するため
の自動車用測定装置に関する◇従来の技術
ＤＥ−Ｏ３３２１８８０６に基づいて公知の上記形式の
測定装置では、車輪の負荷は重量測定器を用いて測定さ
れ、検査スタンＰにおいて登録される。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a measuring device for motor vehicles for detecting the contact force between a tire and a road. In the measuring device, the load on the wheels is measured using a weighing device and registered at the test stamp P.
このような測定装置には、この測定装置が定置でしか使
用できないという欠点並びに検出される値が実際の走行
条件全考慮しないという欠点がある。Such measuring devices have the disadvantage that they can only be used stationary and that the values detected do not take into account all the actual driving conditions.
発明の課題
ゆえに本発明の課題は、実際の走行中におけるタイヤと
道路との間の接触力を検出することができる自動車用測
定装置を提供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a measuring device for a motor vehicle that can detect the contact force between a tire and a road during actual driving.
課題を解決するための手段
この課題を解決するために本発明の構成では、タイヤと
道路との間の接触力を検出するための自動車用測定装置
において、タイヤの走行面に沿って、測定信号を発する
圧力敏感なフォイルが設けられており、この場合測定信
号が回転する車輪から回転トランスを介して自動車固有
の電子式の評価部に送られるようにした。Means for Solving the Problem In order to solve this problem, the present invention provides a measuring device for an automobile for detecting a contact force between a tire and a road, in which a measuring signal is detected along the running surface of the tire. A pressure-sensitive foil is provided which emits a pressure signal, in which case the measuring signal is sent from the rotating wheel via a rotating transformer to the vehicle's own electronic evaluation unit.
発明の効果
本発明のように構成されていると、走行中にも測定値が
得られ、変更された車輪・タイヤ以外には付加的な検出
器を必要としない。Effects of the Invention With the configuration of the present invention, measurement values can be obtained even while the vehicle is running, and no additional detectors are required except for the wheels and tires that have been changed.
さらに本発明には、測定装置がわずかな質量しか有して
おらず、しかもこの質量をタイヤの全周に均一に分配す
ることができ、従ってアンバランスが生じないという利
点がある。Furthermore, the invention has the advantage that the measuring device has only a small mass, which can be evenly distributed over the entire circumference of the tire, so that no unbalances occur.
実施例 次に図面につき本発明の詳細な説明する。Example The invention will now be described in detail with reference to the drawings.
自動車のタイヤ１は、タイヤ充てん弁３を有するリム２
に取り付けられている。タイヤ１は走行面４を有し、こ
の走行面には圧力敏感なフォイル、特にピエゾ・フォイ
ル５が配置されている。フォイル５は、該フォイルを摩
耗及び湿気から保護する保護周壁６に包まれている。し
かしながらまたフォイル５はわずかな値だけタイヤ表面
に埋め込まれていてもよく、この場合には保護周壁６を
省くことができる。A car tire 1 has a rim 2 having a tire filling valve 3
is attached to. The tire 1 has a running surface 4 on which a pressure-sensitive foil, in particular a piezo foil 5, is arranged. The foil 5 is surrounded by a protective jacket 6 which protects the foil from abrasion and moisture. However, the foil 5 can also be embedded in the tire surface by a small amount, in which case the protective jacket 6 can be dispensed with.
ピエゾ・フォイル５は２つの信号ピンクアップＩ、８（
第２図参照）を有しておジ、両信号ピックアップは、半
径方向でタイヤ１に沿ってほぼ車輪軸線１０に向かって
延びたケーブルストランド９を介して、タイヤに配置さ
れた電子的な接続部１１に通じている。信号はそこから
磁気結合部１８の形の回転トランスを介して、自動車に
固定された評価部１９に送られる。Piezo foil 5 has two signal pink-up I, 8 (
2), both signal pickups are connected to an electronic connection arranged in the tire via a cable strand 9 extending radially along the tire 1 approximately towards the wheel axis 10. It leads to section 11. The signals are sent from there via a rotary transformer in the form of a magnetic coupling 18 to an evaluation unit 19 fixed to the motor vehicle.
第２図にはタイヤ１の展開図１２が示されている。タイ
ヤの展開図１２の長さはピエゾ・フォイル５の展開図１
３に投影されている。第２図かられかるようにピエゾ・
フォイル５はその取付は後には一貫して等しい幅を有す
るベルトである。フォイル５はオーバラップを目的とし
てその両端に向かって先細である。先細部分１６．１７
は走行面に沿ったフォイル５の取付は時に互いに隣接し
て位置する。しかしながらフォイル５は閉じられた円を
形成する必要はない。信号ピックアップ７．８はそれぞ
れ最大幅の部位に配置されているので、最大幅の部位に
おけるピックアップが行われる。FIG. 2 shows a developed view 12 of the tire 1. The length of the tire development diagram 12 is the development diagram 1 of the piezo foil 5.
It is projected on 3. As shown in Figure 2, the piezo
The foil 5, after its installation, is a belt having a consistently equal width. The foil 5 tapers towards its ends for overlap purposes. Tapered part 16.17
The mounting of the foils 5 along the running surface is sometimes located adjacent to each other. However, the foil 5 need not form a closed circle. Since the signal pick-ups 7.8 are each arranged at the widest point, pick-up takes place at the widest point.
このような測定装置によってタイヤ１と道路との間にお
ける接触力を検出することができる。Such a measuring device can detect the contact force between the tire 1 and the road.
ピエゾ・フ芽イル５は機械的な負荷時つまりこの場合は
圧力負荷時に負荷に正比例した電圧信号又は電荷信号を
発する。このようにしてりイヤ回転中における動的な接
触力が検出される。The piezo foil 5 emits a voltage signal or a charge signal directly proportional to the load during a mechanical load, in this case a pressure load. In this way, the dynamic contact force during ear rotation is detected.
ケーブルストランド９を介して電子式の評価部１９に達
する測定信号はそこで電子的に処理され、自動車におけ
る任意の表示部又は記録部に転送される。The measurement signals that reach the electronic evaluation unit 19 via the cable strand 9 are processed there electronically and transferred to any display or recording unit in the motor vehicle.
第１図はタイヤに取り付けられた測定装置を示す図、第
２図はタイヤ及び−二デ・フォイルの展開図である。
１・・・タイヤ、２・・・リム、３・・・タイヤ充てん
弁、４・・・走行面、５・・・ぎニジ・フォイル、６・
・・保護周壁、７，８・・・信号ピックアップ、９・・
・ケーブルストランド、１０・・・車輪軸線、１１・・
・接続部、１２．１３・・・展開図、１４．１５・・・
端部、１６゜１７・・・先細部分、１８・・・磁気結合
部、１９・・・評価部
ＦＩＧ、Ｉ
ＦＩＧ、 ２FIG. 1 is a diagram showing a measuring device attached to a tire, and FIG. 2 is a developed view of the tire and the -2D foil. DESCRIPTION OF SYMBOLS 1... Tire, 2... Rim, 3... Tire filling valve, 4... Running surface, 5... Guiniji foil, 6...
...Protective surrounding wall, 7, 8...Signal pickup, 9...
・Cable strand, 10...Wheel axis, 11...
・Connection part, 12.13... Development view, 14.15...
End part, 16° 17...Tapered part, 18...Magnetic coupling part, 19...Evaluation part FIG, I FIG, 2
Claims (1)
車用測定装置であつて、タイヤ（１）の走行面に沿つて
、測定信号を発する圧力敏感なフォイル（５）が設けら
れており、この場合測定信号が回転する車輪から回転ト
ランスを介して自動車固有の電子式の評価部（１１）に
送られることを特徴とする、自動車用の測定装置。 ２、圧力敏感なフォイル（５）がピエゾ・フォイルであ
る、請求項１記載の測定装置。 ６、測定信号が圧力敏感なフォイル（５）から、ほぼ半
径方向にタイヤ（１）に沿つて延びるケーブルストラン
ド（９）を介して接続部 （１１）に送られる、請求項１又は２記載の測定装置。 ４、圧力敏感なフォイル（５）が一貫して等しい幅のベ
ルトである、請求項１から３までのいずれか１項記載の
測定装置。 ５、フォイル（５）が取付け時にオーバラップするよう
にその両端部に向かつて先細に構成されており、この場
合両先細部分が走行面に沿つて隣接して位置し、かつ信
号ピックアップがフォイルの最大幅の部位において行わ
れる、請求項１から４までのいずれか１項記載の測定装
置。 ６、圧力敏感なフォイル（５）が保護周壁（６）によつ
て取り囲まれている、請求項１から５までのいずれか１
項記載の測定装置。 ７、圧力敏感なフォイル（５）がタイヤ表面に埋め込ま
れている、請求項１から６までのいずれか１項記載の測
定装置。 ８、車輪から自動車への測定信号伝達のために磁気結合
部（１８）の形の回転トランスが用いられている、請求
項１から７までのいずれか１項記載の測定装置。[Scope of Claims] 1. Automotive measuring device for detecting the contact force between a tire and the road, comprising a pressure-sensitive foil ( 5), in which the measuring signal is sent from the rotating wheels via a rotary transformer to a vehicle-specific electronic evaluation unit (11). 2. Measuring device according to claim 1, wherein the pressure-sensitive foil (5) is a piezo foil. 6. According to claim 1 or 2, the measurement signal is sent from the pressure-sensitive foil (5) via a cable strand (9) extending approximately radially along the tire (1) to the connection (11). measuring device. 4. Measuring device according to claim 1, wherein the pressure-sensitive foil (5) is a belt of consistently equal width. 5. The foil (5) is tapered toward both ends so as to overlap when installed, in which case both tapered portions are located adjacent to each other along the running surface, and the signal pickup is located on the foil. 5. The measuring device according to claim 1, wherein the measuring device is carried out at a region of maximum width. 6. Any one of claims 1 to 5, wherein the pressure-sensitive foil (5) is surrounded by a protective jacket (6).
Measuring device as described in section. 7. Measuring device according to claim 1, wherein the pressure-sensitive foil (5) is embedded in the tire surface. 8. Measuring device according to claim 1, characterized in that a rotary transformer in the form of a magnetic coupling (18) is used for transmitting the measuring signal from the wheels to the motor vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873741700 DE3741700A1 (en) | 1987-12-09 | 1987-12-09 | Measuring system for motor vehicles |
| DE3741700.2 | 1987-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01195331A true JPH01195331A (en) | 1989-08-07 |
Family
ID=6342198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31028388A Pending JPH01195331A (en) | 1987-12-09 | 1988-12-09 | Measuring apparatus for automobile |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01195331A (en) |
| DE (1) | DE3741700A1 (en) |
Families Citing this family (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 |
| SE0300127D0 (en) | 2003-01-17 | 2003-01-17 | Imego Ab | Indicator 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 |
| 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 |
-
1987
- 1987-12-09 DE DE19873741700 patent/DE3741700A1/en not_active Withdrawn
-
1988
- 1988-12-09 JP JP31028388A patent/JPH01195331A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3741700A1 (en) | 1989-06-22 |
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