DE102007010513A1 - Braking system for vehicle with brake reaction simulator having a flexible thrust connection - Google Patents
Braking system for vehicle with brake reaction simulator having a flexible thrust connection Download PDFInfo
- Publication number
- DE102007010513A1 DE102007010513A1 DE102007010513A DE102007010513A DE102007010513A1 DE 102007010513 A1 DE102007010513 A1 DE 102007010513A1 DE 102007010513 A DE102007010513 A DE 102007010513A DE 102007010513 A DE102007010513 A DE 102007010513A DE 102007010513 A1 DE102007010513 A1 DE 102007010513A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- brake
- piston rod
- actuating unit
- wire
- 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- Withdrawn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
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- 238000013016 damping Methods 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
-
- 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
- B60T13/24—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 gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4077—Systems in which the booster is used as an auxiliary pressure source
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Die Erfindung betrifft eine Betätigungseinheit für eine Kraftfahrzeugbremsanlage vom Typ „Brake-by-wire", die aufweist:
- a) einen Bremskraftverstärker, der sowohl mittels eines Bremspedals in eine kraftübertragende Verbindung bringbaren Eingangsglieds als auch fahrerwunschabhängig sowie unabhängig vom Fahrerwillen mittels einer elektronischen Steuereinheit betätigbar ist, wobei zwischen dem Bremspedal und dem Bremskraftverstärker Mittel vorgesehen sind, die in der Betriebsart „Brake-by-wire" eine Entkopplung einer kraftübertragenden Verbindung zwischen Bremspedal und Bremskraftverstärker ermöglichen,
- b) einen dem Bremskraftverstärker nachgeschalteten Hauptbremszylinder,
- c) Mittel zum Erfassen eines Fahrerwunsches bzw. des Betätigungsweges des Bremspedals,
- d) einen mit dem Bremspedal zusammenwirkenden Pedalwegsimulator, durch den in der Betriebsart „Brake-by-wire" eine auf das Bremspedal wirkende Rückstellkraft unabhängig von einer Betätigung des Bremskraftverstärkers simulierbar ist, sowie
- e) eine hydraulische Zu- bzw. Abschalteinrichtung, die den Pedalwegsimulator in der Betriebsart „Brake-by-wire" zu- und außerhalb der Betriebsart „Brake-by-wire" abschaltet und die durch eine Zylinder-Kolben-Anordnung gebildet ist, deren Druckraum mittels einer absperrbaren Verbindung mit einem Druckmittelvolumen-Aufnahmeelement verbunden ist und an deren Kolben sich ein Simulatorgehäuse abstützt.
- a) a brake booster which can be actuated both by means of a brake pedal in a force-transmitting connection input member and driver's request and independent of the driver's will by means of an electronic control unit, are provided between the brake pedal and the brake booster means which in the mode "brake-by- wire "enable a decoupling of a force-transmitting connection between the brake pedal and the brake booster,
- b) a brake booster downstream master cylinder,
- c) means for detecting a driver's request or the actuating travel of the brake pedal,
- d) a pedal travel simulator interacting with the brake pedal, by means of which, in the "brake-by-wire" mode, a restoring force acting on the brake pedal can be simulated independently of an actuation of the brake booster, and
- e) a hydraulic supply or shutdown device, the pedal travel simulator in the operating mode "brake-by-wire" on and off outside the operating mode "brake-by-wire" and which is formed by a cylinder-piston assembly whose Pressure chamber is connected by means of a lockable connection with a pressure medium volume receiving element and on the piston, a simulator housing is supported.
Eine derartige Betätigungseinheit ist z. B. aus der internationalen Patentanmeldung der Anmelderin WO 2006/084864 A1 bekannt. Die Abstützung des oben erwähnten Simulatorgehäuses an der Zu- bzw. Abschalteinrichtung erfolgt bei der vorbekannten Betätigungseinheit mittels einer Kolbenstange, über die außerhalb der Betriebsart „Brake-by-wire" die Bewegung des Bremspedals bzw. des Simulatorgehäuses auf den Kolben übertragen wird. Die Kolbenstange ist mit dem Kolben starr verbunden und wird von diesem geführt. Der Kolben weist auf seinem dem Druckraum abgewandten Ende eine Ringfläche auf, die in unbetätigter Stellung der Anordnung an einem metallischen Anschlagring anliegt. Als nachteilig wird jedoch die Tatsache empfunden, dass bei einem schlagartigen Lösen des Bremspedals am Anschlag hohe Beschleunigungswerte auftreten, die ein unerwünschtes Spiel zwischen der Kolbenstange und dem Kolben der Zylinder-Kolben-Anordnung verursachen können.A Such actuator is z. B. from the international patent application of the applicant WO 2006/084864 A1. The support of the above-mentioned simulator housing the supply or disconnection device takes place in the previously known actuator unit by means of a piston rod, over the outside the operation mode "brake-by-wire" the movement of the Transfer brake pedal or the simulator housing on the piston becomes. The piston rod is rigidly connected to the piston and is led by this. The piston has on its end remote from the pressure chamber a ring surface on that in unacknowledged Position of the arrangement bears against a metallic stop ring. However, the fact that at a abrupt release the brake pedal at the stop high acceleration values occur the one unwanted Play between the piston rod and the piston of the cylinder-piston assembly can cause.
Es ist daher Aufgabe der vorliegenden Erfindung, geeignete Maßnahmen vorzuschlagen, die beim Aufrechterhalten der einwandfreien Funktion eine wirksame Trennung der Kolbenstange vom Kolben ermöglichen.It is therefore an object of the present invention, suitable measures to propose, while maintaining the proper function of a enable effective separation of the piston rod from the piston.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass zwischen dem Kolben und der Kolbenstange eine Verbindung vorgesehen ist, deren Freiheitsgrad = 3 ist.These Task is inventively characterized solved, that provided between the piston and the piston rod a connection is whose degree of freedom = 3.
Zur Konkretisierung des Erfindungsgedankens ist die Verbindung zwischen dem Kolben und der Kolbenstange bei einer vorteilhaften Weiterbildung des Erfindungsgegenstandes als eine Gelenkverbindung ausgebildet, bei der die Kolbenstange einen sphärischen Gelenkkopf aufweist und der Kolben mit einer entsprechend ausgebildeten Kopfaufnahme versehen ist.to Concretization of the inventive idea is the connection between the piston and the piston rod in an advantageous development of the subject invention designed as a hinge connection, in which the piston rod has a spherical condyle and the piston with a correspondingly formed head receptacle is provided.
Weitere Merkmale des Erfindungsgegenstandes sind in den Unteransprüchen 3 bis 12 aufgeführt.Further Features of the subject invention are in the subclaims 3 to 12 listed.
Die erfindungsgemäße Betätigungseinheit wird in der nachfolgenden Beschreibung unter Bezugnahme auf die beiliegende Zeichnung näher erläutert. In der Zeichnung zeigen:The Actuator unit according to the invention in the following description with reference to the attached Drawing closer explained. In the drawing show:
Die
in
Der
Pedalwegsimulator
Wie
insbesondere
Wie
weiterhin in
Um
eine allseitige Schwenkbewegung der Kolbenstange
Die Funktion der beschriebenen Betätigungseinheit ist in der eingangs genannten Patentanmeldung WO 2006/084864 A1 bekannt, so dass eine Beschreibung nicht erforderlich ist.The Function of the described actuator is in the aforementioned patent application WO 2006/084864 A1 known so that a description is not required.
Claims (12)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007010513A DE102007010513A1 (en) | 2006-05-19 | 2007-03-05 | Braking system for vehicle with brake reaction simulator having a flexible thrust connection |
JP2009552075A JP2010520106A (en) | 2007-03-05 | 2007-05-24 | Drive unit for vehicle braking system |
PCT/EP2007/055046 WO2008107023A1 (en) | 2007-03-05 | 2007-05-24 | Actuating unit for a motor vehicle brake system |
AT07729477T ATE548236T1 (en) | 2007-03-05 | 2007-05-24 | ACTUATING UNIT FOR A MOTOR VEHICLE BRAKE SYSTEM |
EP07729477A EP2132067B1 (en) | 2007-03-05 | 2007-05-24 | Actuating unit for a motor vehicle brake system |
US12/527,732 US8500222B2 (en) | 2007-03-05 | 2007-05-24 | Actuating unit for a motor vehicle brake system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023868.0 | 2006-05-19 | ||
DE102006023868 | 2006-05-19 | ||
DE102007010513A DE102007010513A1 (en) | 2006-05-19 | 2007-03-05 | Braking system for vehicle with brake reaction simulator having a flexible thrust connection |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007010513A1 true DE102007010513A1 (en) | 2007-11-22 |
Family
ID=38608195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007010513A Withdrawn DE102007010513A1 (en) | 2006-05-19 | 2007-03-05 | Braking system for vehicle with brake reaction simulator having a flexible thrust connection |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007010513A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010081840A1 (en) * | 2009-01-15 | 2010-07-22 | Continental Teves Ag & Co. Ohg | "brake-by-wire" type braking system |
DE102011016240A1 (en) * | 2011-04-06 | 2012-10-11 | Volkswagen Ag | Pedal force simulator for controlling brake force in vehicle braking system, has piston rod that is slide mounted by slide bearing of radial-spherical bearing in front wall of cylinders |
DE102016213285A1 (en) * | 2016-07-20 | 2018-01-25 | Audi Ag | braking system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998046461A2 (en) * | 1997-04-16 | 1998-10-22 | Siemens Aktiengesellschaft | Brake power detector for an electrically controlled and actuated braking system |
DE102004011622A1 (en) * | 2003-08-06 | 2005-03-31 | Continental Teves Ag & Co. Ohg | Brake actuation unit for actuating a motor vehicle brake system |
DE102004042083A1 (en) * | 2003-09-30 | 2005-04-21 | Tokico Ltd | Master cylinder device |
WO2006084864A1 (en) * | 2005-02-08 | 2006-08-17 | Continental Teves Ag & Co. Ohg | Brake actuating unit for actuating an automotive braking system |
-
2007
- 2007-03-05 DE DE102007010513A patent/DE102007010513A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998046461A2 (en) * | 1997-04-16 | 1998-10-22 | Siemens Aktiengesellschaft | Brake power detector for an electrically controlled and actuated braking system |
DE102004011622A1 (en) * | 2003-08-06 | 2005-03-31 | Continental Teves Ag & Co. Ohg | Brake actuation unit for actuating a motor vehicle brake system |
DE102004042083A1 (en) * | 2003-09-30 | 2005-04-21 | Tokico Ltd | Master cylinder device |
WO2006084864A1 (en) * | 2005-02-08 | 2006-08-17 | Continental Teves Ag & Co. Ohg | Brake actuating unit for actuating an automotive braking system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010081840A1 (en) * | 2009-01-15 | 2010-07-22 | Continental Teves Ag & Co. Ohg | "brake-by-wire" type braking system |
US9079570B2 (en) | 2009-01-15 | 2015-07-14 | Continental Teves Ag & Co. Ohg | “Brake-by-wire” type brake system |
DE102011016240A1 (en) * | 2011-04-06 | 2012-10-11 | Volkswagen Ag | Pedal force simulator for controlling brake force in vehicle braking system, has piston rod that is slide mounted by slide bearing of radial-spherical bearing in front wall of cylinders |
DE102016213285A1 (en) * | 2016-07-20 | 2018-01-25 | Audi Ag | braking system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140306 |