DE10321595A1 - Brake lining wear monitoring system for road vehicle or railway vehicle brakes has sensor inserted in bore in lining and electrically connected to computer or evaluation circuit - Google Patents
Brake lining wear monitoring system for road vehicle or railway vehicle brakes has sensor inserted in bore in lining and electrically connected to computer or evaluation circuit Download PDFInfo
- Publication number
- DE10321595A1 DE10321595A1 DE2003121595 DE10321595A DE10321595A1 DE 10321595 A1 DE10321595 A1 DE 10321595A1 DE 2003121595 DE2003121595 DE 2003121595 DE 10321595 A DE10321595 A DE 10321595A DE 10321595 A1 DE10321595 A1 DE 10321595A1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- sensor
- brake pad
- wear
- lining
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
- F16D66/023—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness directly sensing the position of braking members
- F16D66/024—Sensors mounted on braking members adapted to contact the brake disc or drum, e.g. wire loops severed on contact
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Die
Erfindung bezieht sich auf eine Vorrichtung zur Überwachung des Verschleißes eines Bremsbelags,
der in Bremsanlagen von Fahrzeugen angebracht ist und eine zur Anlage
an einer Bremsfläche
einer Bremsanlage bestimmte Verschleißseite hat, bei welcher auf
einer der Verschleißseite
eines Bremsbelages gegenüber
liegenden Halteseite ein in Richtung der Verschleißseite ragender,
mit einer elektrischen Spannungsquelle verbindbarer Sensor angeordnet
ist, der den Verschleiß des
Bremsbelages betreffende Signale an eine Auswerteeinheit liefert
(
Eine derartige Vorrichtung kann bei Fahrzeugen aller Art verwendet werden, insbesondere bei Personen- und Lastkraftwagen. Sie kann aber auch bei auf Schienen bewegten Bahnen eingesetzt werden. In allen Fällen sind in der Bremsanlage Bremsbeläge vorhanden, die bei einem Bremsvorgang an eine in der Regel aus Metall bestehende Bremsfläche angedrückt werden. Die Bremsanlagen können mit Backenbremsen oder Scheibenbremsen ausgerüstet sein. Die Bremsbeläge sind dementsprechend unterschiedlich gestaltet. Sie unterliegen aber – unabhängig von ihrer Form und Größe – bei jedem Bremsvorgang einem Verschleiß. Um ein sicheres Bremsen garantieren zu können, ist eine Mindestwandstärke bzw. Restdicke der Bremsbeläge erforderlich. Diese kann von geschultem Personal durch Augenschein festgestellt werden. Sie kann unter Einsatz von Sensoren aber auch automatisch angezeigt werden. Entsprechende Vorrichtungen gehen beispielsweise aus der DE-PS 26 10 903 und aus der DE-OS 29 06 710 hervor.A such a device can be used in vehicles of all types, especially in passenger and truck vehicles. But you can also at Rails moving on rails can be used. In all cases in the brake system brake pads present when braking to a generally metal existing braking surface can be pressed. The braking systems can be equipped with shoe brakes or disc brakes. The brake pads are accordingly designed differently. However, they are subject to - regardless of their shape and size - with everyone Braking process a wear. In order to guarantee safe braking, a minimum wall thickness or Remaining thickness of the brake pads required. This can be checked by trained personnel become. It can also be done automatically using sensors are displayed. Appropriate devices go for example from DE-PS 26 10 903 and from DE-OS 29 06 710.
Bei
der bekannten Vorrichtung nach der eingangs erwähnten
Der Erfindung liegt die Aufgabe zugrunde, die eingangs geschilderte Vorrichtung so weiterzubilden, daß eine Aussage über den Zustand des Bremsbelags vor dem Erreichen der Mindestwandstärke desselben möglich ist.The The invention is based on the object described at the outset To further develop the device so that a statement about the Condition of the brake pad before it reaches the minimum wall thickness possible is.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß der Sensor, ausgehend von der Halteseite des Bremsbelages, so weit in Richtung der Verschleißseite desselben ragt, daß er über eine vorgebbare, als Grenze für ein sicheres Bremsen notwendige Restdicke des Bremsbelags hinausragt.This Object is according to the invention solved by that the Sensor, starting from the stop side of the brake pad, so far in Direction of the wear side the latter protrudes that it has a predeterminable, as a limit for safe braking protrudes the necessary remaining thickness of the brake pad.
Der Sensor dieser Vorrichtung ragt über die durch die vorgegebene Restdicke des zu überwachenden Bremsbelags definierte Grenze hinaus. Er kommt daher schon dann mit der Bremsfläche der Bremsanlage in Berührung, wenn die Restdicke des Bremsbelags noch nicht erreicht ist. Der Sensor wird dann bei den nächsten Bremsvorgängen ebenso abgetragen wie die Bremsbacke. Die damit verbundene Verkürzung des Sensors wird für ein Signal ausgenutzt, das an die Auswerteeinheit abgegeben wird. Dieses Signal hängt von der jeweils noch verbleibenden Länge des Sensors ab, welche der jeweils noch vorhandenen Wandstärke des Bremsbelags entspricht. Es wird auf diese Weise eine frühzeitige Information darüber erhalten. wann etwa ein Bremsbelag wegen Erreichens seiner Restdicke erneuert werden muß.The Sensor of this device protrudes which is defined by the specified remaining thickness of the brake pad to be monitored Limit. He therefore already comes with the braking surface of the braking system in touch, if the remaining thickness of the brake pad has not yet been reached. The The sensor will then switch to the next braking just as worn as the brake shoe. The associated shortening of the Sensor is for exploited a signal that is output to the evaluation unit. This Signal hangs on the remaining length of the sensor, which corresponds to the existing wall thickness of the brake pad. In this way it becomes early Information about it receive. when about a brake pad due to reaching its remaining thickness must be renewed.
In bevorzugter Ausführungsform hat der Sensor von vornherein eine der Dicke des Bremsbelags entsprechende Länge. Er kann dabei in einer den Bremsbelag vollständig durchdringenden Bohrung angebracht sein. Bei dieser Ausführungsform wird der Sensor von vornherein ebenso wie der Bremsbelag abgetragen. Er zeigt dann jeweils die nach jedem Bremsvorgang verbliebene Dicke des Bremsbelags an, der somit einer ständigen Kontrolle unterliegt.In preferred embodiment from the outset the sensor has a thickness that corresponds to the thickness of the brake pad Length. He can in a bore completely penetrating the brake pad to be appropriate. In this embodiment the sensor and the brake lining have been removed from the start. It then shows the thickness remaining after each braking operation of the brake pad, which is therefore subject to constant control.
Ausführungsbeispiele des Erfindungsgegenstandes sind in den Zeichnungen dargestellt.embodiments of the subject of the invention are shown in the drawings.
Es zeigen:It demonstrate:
Die
in
Die
Bremsanlage hat eine mit einem nicht mit dargestellten Rad eines
Fahrzeugs verbundene kreisrunde Bremsfläche
Der
Bremsbelag
Als
neues, unbenutztes Bauteil hat der Bremsbelag
Die
Restdicke R des Bremsbelags
In
bevorzugter Ausführungsform
entspricht die Länge
des Sensors
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003121595 DE10321595A1 (en) | 2003-05-14 | 2003-05-14 | Brake lining wear monitoring system for road vehicle or railway vehicle brakes has sensor inserted in bore in lining and electrically connected to computer or evaluation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003121595 DE10321595A1 (en) | 2003-05-14 | 2003-05-14 | Brake lining wear monitoring system for road vehicle or railway vehicle brakes has sensor inserted in bore in lining and electrically connected to computer or evaluation circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10321595A1 true DE10321595A1 (en) | 2004-12-02 |
Family
ID=33016388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003121595 Withdrawn DE10321595A1 (en) | 2003-05-14 | 2003-05-14 | Brake lining wear monitoring system for road vehicle or railway vehicle brakes has sensor inserted in bore in lining and electrically connected to computer or evaluation circuit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10321595A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903249A1 (en) * | 2006-09-22 | 2008-03-26 | Hirschmann Automotive GmbH | Sensor for detecting wear on the braking pad of a braking unit in a vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8503812U1 (en) * | 1985-02-12 | 1986-06-12 | Lucas Industries P.L.C., Birmingham, West Midlands | Signal generator for monitoring a brake lining |
DE8710053U1 (en) * | 1987-07-22 | 1987-09-17 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt, De | |
DE4237679A1 (en) * | 1992-11-07 | 1994-05-11 | Teves Gmbh Alfred | Disk brake pad with wear indicator - has sensor to indicate pad wear embedded in plastic clamp snapped over edge of baseplate |
DE10023767A1 (en) * | 2000-05-15 | 2001-11-29 | Pex Kabeltechnik Gmbh | Evaluating brake lining wear signals involves using reaction of first sensor as warning and reaction of second sensor as demand to change brake pad or brake pads on an axle |
-
2003
- 2003-05-14 DE DE2003121595 patent/DE10321595A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8503812U1 (en) * | 1985-02-12 | 1986-06-12 | Lucas Industries P.L.C., Birmingham, West Midlands | Signal generator for monitoring a brake lining |
DE8710053U1 (en) * | 1987-07-22 | 1987-09-17 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt, De | |
DE4237679A1 (en) * | 1992-11-07 | 1994-05-11 | Teves Gmbh Alfred | Disk brake pad with wear indicator - has sensor to indicate pad wear embedded in plastic clamp snapped over edge of baseplate |
DE10023767A1 (en) * | 2000-05-15 | 2001-11-29 | Pex Kabeltechnik Gmbh | Evaluating brake lining wear signals involves using reaction of first sensor as warning and reaction of second sensor as demand to change brake pad or brake pads on an axle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903249A1 (en) * | 2006-09-22 | 2008-03-26 | Hirschmann Automotive GmbH | Sensor for detecting wear on the braking pad of a braking unit in a vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |