DE102004037308A1 - Parking brake for road vehicles is provided by a hydraulically powered drum brake acting independently of vehicle main disc brakes - Google Patents
Parking brake for road vehicles is provided by a hydraulically powered drum brake acting independently of vehicle main disc brakes Download PDFInfo
- Publication number
- DE102004037308A1 DE102004037308A1 DE200410037308 DE102004037308A DE102004037308A1 DE 102004037308 A1 DE102004037308 A1 DE 102004037308A1 DE 200410037308 DE200410037308 DE 200410037308 DE 102004037308 A DE102004037308 A DE 102004037308A DE 102004037308 A1 DE102004037308 A1 DE 102004037308A1
- Authority
- DE
- Germany
- Prior art keywords
- parking brake
- piston
- brake
- brake device
- cylinder unit
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
- B60T11/105—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices with brake locking after actuation, release of the brake by a different control device, e.g. gear lever
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- 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
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Description
Die Erfindung betrifft eine Feststellbremsvorrichtung für Kraftfahrzeuge mit den Merkmalen des Oberbegriffs des Anspruchs 1.The The invention relates to a parking brake device for motor vehicles with the features of the preamble of claim 1.
Aus
der
Aufgabe der Erfindung ist es, eine Feststellbremsvorrichtung anzugeben, die mit geringem konstruktivem Aufwand bei geringem Bauraum verwirklicht werden kann.task the invention is to provide a parking brake device, realized with little design effort in a small space can be.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.These The object is achieved with the features of claim 1.
Grundgedanke der Erfindung ist, eine Trommelbremse als reine Feststellbremse eines Kraftfahrzeugs, somit nicht als kombinierte Betriebs- und Feststellbremse zu nutzen, deren Spreizschloss eine Kolben-Zylinder-Einheit aufweist. Dabei ist die Kolben-Zylinder-Einheit ausschließlich vom Druck der Druckquelle beaufschlagbar, um die Feststellbremse anzusteuern.basic idea The invention is a drum brake as a pure parking brake a motor vehicle, thus not as a combined service and parking brake to use, the expansion lock has a piston-cylinder unit. The piston-cylinder unit is exclusively based on the pressure of the pressure source acted to control the parking brake.
Im Gegensatz zu kombinierten Trommelbremsen, die als Betriebs- und Feststellbremse verwendet werden, wird in der vorliegenden Erfindung eine Trommelbremse als reine Feststellbremse verwendet. Dadurch ist es möglich, Bauteile der Trommelbremse, insbesondere die Bremsbeläge, konstruktiv kleiner zu dimensionieren.in the Unlike combined drum brakes, which are considered operational and Parking brake used in the present invention a Drum brake used as a pure parking brake. That's it possible, Components of the drum brake, in particular the brake pads, constructive smaller dimension.
Zum Ansteuern der Feststellbremse wird der Hydraulikkreislauf genutzt, mit dem auch die Betriebsbremsen, beispielsweise Scheibenbremsen, beaufschlagt werden. Hierzu weist die Spreizschlosseinrichtung eine Kolben-Zylinder-Einheit auf, die über ein Schaltventil mit der Druckquelle verbindbar ist. So kann durch Ansteuern des Schaltventils der Hydraulikdruck der Betriebsbremse für das Verspannen der Trommelbremse über die Kolben-Zylinder-Einheit genutzt werden. Das benötigte Schaltventil baut relativ klein. Somit ist kein großer, beispielsweise elektromechanischer Stellantrieb erforderlich, um die Feststellbremse zu betreiben.To the Driving the parking brake, the hydraulic circuit is used, with the service brakes, such as disc brakes, applied become. For this purpose, the Spreizschlosseinrichtung a piston-cylinder unit on that over a switching valve is connectable to the pressure source. So can through Driving the switching valve, the hydraulic pressure of the service brake for the Bracing the drum brake over the piston-cylinder unit can be used. The required switching valve builds relatively small. Thus, no large, for example, electromechanical Actuator required to operate the parking brake.
In einer Ausgestaltung der Erfindung weist die Kolben-Zylinder-Einheit eine Feder auf, die den Kolben in einer Ausgangsstellung zu halten sucht. Bei Beaufschlagung der Kolben-Zylinder-Einheit mit der Hydraulikflüssigkeit wird die Feder gespannt. Zum Lösen der Feststellbremse wird das Schaltventil geöffnet. Dabei bewirkt die in der gespannten Feder gespeicherte Energie unter Entspannung der Feder ein Verdrängen der Hydraulikflüssigkeit aus der Kolben-Zylinder-Einheit in den Hydraulikkreislauf der Betriebsbremse. Dadurch ist keine Pumpe für die Entleerung notwendig.In An embodiment of the invention, the piston-cylinder unit a spring to hold the piston in a home position examined. When the piston-cylinder unit is exposed to the hydraulic fluid the spring is cocked. To solve the parking brake, the switching valve is opened. The effect in the tensioned spring stored energy while relaxing the Feather a displace the hydraulic fluid from the piston-cylinder unit in the hydraulic circuit of the service brake. This is no Pump for the emptying necessary.
In einer weiteren Ausgestaltung der Erfindung weist die Feststellbremsvorrichtung eine Verriegelungseinrichtung mit einem federbelasteten Sperrstift und einer elektromagnetischen Löseeinrichtung auf. Der Sperrstift wirkt mit entsprechenden Rasten am Kolben der Kolben-Zylinder-Einheit zusammen und verriegelt den Kolben, so dass dieser nur bei Druckerhöhung in Richtung des Spreizschlosses bewegt werden kann. Eine Bewegung des Kolbens in entgegengesetzter Richtung ist hingegen nur bei entriegeltem Kolben möglich.In a further embodiment of the invention, the parking brake device a locking device with a spring-loaded locking pin and an electromagnetic release device. The locking pin cooperates with corresponding notches on the piston of the piston-cylinder unit and locks the piston, so that this only with pressure increase in Direction of the expansion lock can be moved. A movement of the Piston in the opposite direction, however, is only unlocked Piston possible.
Die Entriegelung des Kolbens erfolgt erfindungsgemäß über eine elektromagnetische Löseeinrichtung in Form eines Elektromagneten, der als Spule auf den als Anker wirkenden Sperrstift einwirken und diesen aus den Rasten des Kolbens lösen kann. Die Ansteuerung des Elektromagneten kann dabei über eine zentrale Steuereinheit erfolgt, die auch das Schaltventil ansteuert. Eine Entriegelung des Kolbens durch manuelles Ziehen am Sperrstift ist jedoch auch möglich.The Unlocking of the piston takes place according to the invention via an electromagnetic release device in the form of an electromagnet acting as a coil acting as an anchor Locking pin act and can solve this from the notches of the piston. The Activation of the electromagnet can via a central control unit takes place, which also controls the switching valve. An unlocking However, the piston by manually pulling the locking pin is also possible.
Nachfolgend wird anhand von in der Zeichnung dargestellten zwei Ausführungsbeispielen die Erfindung näher erläutert.following is based on two embodiments shown in the drawing the invention closer explained.
Dabei zeigt:there shows:
In
Von
der Hydraulikleitung
Diese
weitere Hydraulikleitung
Alternativ
kann das Schaltventil
Der
Kolben
Ein
mit dem Kolben
Das
Schaltelement
An
der Zylinderwand
Die
erfindungsgemäße Feststellbremsvorrichtung
Während
der Fahrt eines mit der erfindungsgemäßen Feststellbremsvorrichtung
While driving one with the parking brake device according to the invention
Von
der Steuerung
Während des
Verschiebens nach rechts drückt
der Kolben
Ab
einer vom zurückgelegten
Weg des Kolbens
Zum
Lösen der
Feststellbremse
Durch
das vom Fahrer betätigte
Bedienelement
By the operator-operated control element
In
dem Fall, dass während
des Lösens
der Feststellbremse
In
dem Fall, dass die Betriebsbremse
Die
gewisse Zeit, die von der Feder
Das
auslösende
Signal zur Aktivierung des Schaltventils
In
Wesentlichster
Unterschied zu
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410037308 DE102004037308A1 (en) | 2004-07-31 | 2004-07-31 | Parking brake for road vehicles is provided by a hydraulically powered drum brake acting independently of vehicle main disc brakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410037308 DE102004037308A1 (en) | 2004-07-31 | 2004-07-31 | Parking brake for road vehicles is provided by a hydraulically powered drum brake acting independently of vehicle main disc brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004037308A1 true DE102004037308A1 (en) | 2005-02-03 |
Family
ID=33560441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410037308 Withdrawn DE102004037308A1 (en) | 2004-07-31 | 2004-07-31 | Parking brake for road vehicles is provided by a hydraulically powered drum brake acting independently of vehicle main disc brakes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004037308A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005077723A1 (en) * | 2004-02-16 | 2005-08-25 | Safe Effect Pty Ltd | A drum brake system with integrated park brake |
DE102007006380A1 (en) | 2007-02-08 | 2008-08-14 | Lucas Automotive Gmbh | Locking brake device for motor vehicle, has electromechanically operated supporting device, which is formed in locking brake position and has swiveling eccentric |
DE102006031329B4 (en) * | 2005-07-06 | 2008-08-21 | Lucas Automotive Gmbh | Parking brake device for a motor vehicle, brake system with such a parking brake device and method for driving a parking brake device |
US7802663B2 (en) | 2004-09-30 | 2010-09-28 | Honda Motor Co., Ltd. | Vehicle brake system |
CN102019921A (en) * | 2010-11-03 | 2011-04-20 | 韩硬金 | Hydraulic braking control system |
CN102039884A (en) * | 2010-11-26 | 2011-05-04 | 窦兰梅 | Hydraulic anti-locking braking device |
EP3760525A1 (en) * | 2019-07-03 | 2021-01-06 | Gustav Magenwirth GmbH & Co. KG | Brake system with parking brake device |
-
2004
- 2004-07-31 DE DE200410037308 patent/DE102004037308A1/en not_active Withdrawn
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005077723A1 (en) * | 2004-02-16 | 2005-08-25 | Safe Effect Pty Ltd | A drum brake system with integrated park brake |
US7802663B2 (en) | 2004-09-30 | 2010-09-28 | Honda Motor Co., Ltd. | Vehicle brake system |
DE102006031329B4 (en) * | 2005-07-06 | 2008-08-21 | Lucas Automotive Gmbh | Parking brake device for a motor vehicle, brake system with such a parking brake device and method for driving a parking brake device |
DE102007006380A1 (en) | 2007-02-08 | 2008-08-14 | Lucas Automotive Gmbh | Locking brake device for motor vehicle, has electromechanically operated supporting device, which is formed in locking brake position and has swiveling eccentric |
CN102019921A (en) * | 2010-11-03 | 2011-04-20 | 韩硬金 | Hydraulic braking control system |
CN102039884A (en) * | 2010-11-26 | 2011-05-04 | 窦兰梅 | Hydraulic anti-locking braking device |
WO2012068827A1 (en) * | 2010-11-26 | 2012-05-31 | 南阳泰鼎科技有限公司 | Hydraulic antilock brake device |
CN102039884B (en) * | 2010-11-26 | 2014-12-03 | 窦兰梅 | Hydraulic anti-locking braking device |
US9096202B2 (en) | 2010-11-26 | 2015-08-04 | Nanyang Tai Ding Technology Co., Ltd | Hydraulic antilock brake device |
EP3760525A1 (en) * | 2019-07-03 | 2021-01-06 | Gustav Magenwirth GmbH & Co. KG | Brake system with parking brake device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
8130 | Withdrawal |