DE19750977B4 - braking system - Google Patents
braking system Download PDFInfo
- Publication number
- DE19750977B4 DE19750977B4 DE1997150977 DE19750977A DE19750977B4 DE 19750977 B4 DE19750977 B4 DE 19750977B4 DE 1997150977 DE1997150977 DE 1997150977 DE 19750977 A DE19750977 A DE 19750977A DE 19750977 B4 DE19750977 B4 DE 19750977B4
- Authority
- DE
- Germany
- Prior art keywords
- brake
- pedal
- brake pedal
- booster
- motor vehicle
- 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.)
- Expired - Fee Related
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
- 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
-
- 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
- B60T13/26—Compressed-air systems
- B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
- B60T13/44—Compressed-air systems indirect, i.e. compressed air booster units indirect systems with two-chamber 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
- 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
- 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
- B60T8/321—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 deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/326—Hydraulic systems
- B60T8/3265—Hydraulic systems with control of the booster
-
- 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
- B60T8/321—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 deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/3275—Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity
-
- 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
- B60T8/44—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
- B60T8/441—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems using hydraulic boosters
-
- 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
- B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4845—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control
- B60T8/4854—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control pneumatic boosters
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
Kraftfahrzeug-Bremsanlage
mit einem zwischen einem Bremspedal (10) und einem Hauptbremszylinder
angeordneten Bremskraftverstärker
(20), der fahrerwunschabhängig
durch das Bremspedal (10) betätigbar
ist, und mit
– wenigstens
einem Sensormittel (30, 32), durch welches der Betätigungsweg
des Bremspedals (10) erfaßbar
ist und
– einem
zwischen dem Bremspedal (10) und dem Bremskraftverstärker (20)
angeordnetem Pedalwegsimulatur (80), durch welchen eine auf das
Bremspedal (10) wirkende Rückstellkraft
unabhängig
von einer Betätigung
des Bremskraftverstärkers
(20) simulierbar ist,
dadurch gekenzeichnet,
daß eine Steuereinrichtung
(40, 50) vorgesehen ist, durch welche der Bremskraftverstärker (20)
abhängig
von dem durch das wenigstens eine Sensormittel (30, 32) erfaßten Betätigungsweg
und unabhängig
von der Betätigungskraft des
Bremspedals (10) ansteuerbar ist, und daß zwischen dem Bremspedal (10)
und einem Stößel (21)
des Bremskraftverstärkers
eine starre Verbindung herstellbar ist, wobei der Pedalwegsimulator
(80) unbetätigt
bleibt.Motor vehicle brake system with a arranged between a brake pedal (10) and a master cylinder brake booster (20), the driver is dependent on the brake pedal (10) operable, and with
- At least one sensor means (30, 32) through which the actuating travel of the brake pedal (10) can be detected and
- A between the brake pedal (10) and the brake booster (20) arranged Pedalwegsimulatur (80) by which on the brake pedal (10) acting restoring force is independent of an operation of the brake booster (20) simulated,
characterized by
in that a control device (40, 50) is provided, by means of which the brake booster (20) can be controlled as a function of the actuating travel detected by the at least one sensor means (30, 32) and independently of the actuating force of the brake pedal (10), and in that between Brake pedal (10) and a plunger (21) of the brake booster a rigid connection can be produced, the pedal travel simulator (80) remains unactuated.
Description
Die Erfindung betrifft eine Kraftfahrzeug-Bremsanlage mit einem zwischen einem Bremspedal und einem Hauptbremszylinder angeordneten Bremskraftverstärker, der fahrerwunschabhängig durch das Bremspedal betätigbar ist nach dem Oberbegriff des Patentanspruches 1.The The invention relates to a motor vehicle brake system with an intermediate a brake pedal and a master cylinder arranged brake booster, the depending on the driver the brake pedal can be actuated is according to the preamble of claim 1.
Fahrerwunschabhängig durch
das Bremspedal betätigbare
Kraftfahrzeug-Bremsanlagen sind beispielsweise aus der
Der überwiegende Teil von Kraftfahrzeug-Bremsanlagen von Personenkraftwägen besteht heute aus hydraulischen Bremsanlagen. Der Fahrer des Kraftfahrzeugs betätigt das Bremspedal, wobei seinem Betätigungswunsch die Bremspedalkraft und der Bremspedalweg entsprechen. Durch den Bremskraftverstärker, in den meisten Fällen ein Vakuum-Bremskraftverstärker, wird die Betätigungskraft um ein Vielfaches verstärkt und im Hauptbremszylinder in einen hydraulischen Druck umgesetzt, der über Hydraulikleitungen an die radseitig angeordneten Radbremszylinder übertragen wird.The predominant Part of motor vehicle brake systems of passenger cars today from hydraulic brake systems. The driver of the motor vehicle actuated the brake pedal, his desire to operate the brake pedal force and the brake pedal travel correspond. By the Brake booster, in most cases a vacuum brake booster, becomes the operating force amplified many times over and converted into a hydraulic pressure in the master cylinder, the over Transfer hydraulic lines to the wheel side arranged wheel brake becomes.
Seit einiger Zeit existieren Bremsanlagen, welche unabhängig vom Fahrerwunsch einen Bremseneingriff vornehmen, um beispielsweise ein Blockieren der Räder beim Bremsen oder ein Durchdrehen der Räder beim Anfahren zu vermeiden. Derartige Bremssysteme, beispielsweise Antiblockiersysteme, Bremsassistent-Systeme, Antischlupfregelungssysteme u.dgl., erfordern fremdansteuerbare Bremskraftvertärker, durch welche ein aktiver Bremseneingriff ermöglicht wird.since Some time ago there are brake systems, which are independent of Driver request make a brake intervention, for example a blocking of the wheels when braking or turning the wheels when starting to avoid. Such brake systems, for example anti-lock braking systems, brake assist systems, Anti-skid control systems and the like, require externally controllable Bremskraftvertärker, by which an active brake intervention is enabled.
Eine
gattungsgemäße Kraftfahrzeug-Bremsanlagen
geht aus der
Um Pedalrückwirkungen zu beseitigen, wurden auch aktive elektrohydraulische Bremsanlagen vorgeschlagen, bei welchen der Bremsdruck durch ein hydraulisches Stellglied zur Verfügung gestellt wird. Bei derartigen elektrohydraulischen Bremsanlagen ist eine Hydraulik vorgesehen, die sehr präzise arbeitende. Ventile erfordert. Zusätzlich muß Hydraulikflüssigkeit im Fahrzeug vorgesehen sein, die nicht nur ein höheres Gewicht der Bremsanlagen sondern in vielen Fällen auch Leckageprobleme verursachen kann.Around Pedal repercussions to eliminate, active electro-hydraulic brake systems have also been proposed, in which the brake pressure by a hydraulic actuator for disposal is provided. In such electro-hydraulic brake systems is provided a hydraulic system that works very precisely. Valves required. additionally must be hydraulic fluid be provided in the vehicle, not only a higher weight of the brake systems but in many cases can also cause leakage problems.
Der Erfindung liegt die Aufgabe zugrunde, eine Kraftfahrzeug-Bremsanlage der gattungsgemäßen Art derart zu verbessern, daß diese einen elektrisch gesteuerten bzw. geregelten Betrieb ermöglicht und dabei eine ausreichende Betriebssicherheit gewährleistet.Of the Invention is based on the object, a motor vehicle brake system of the generic type to improve so that these enables electrically controlled operation and while ensuring sufficient reliability.
Diese
Aufgabe wird bei einer Kraftfahrzeug-Bremsanlage der eingangs beschriebenen
Art erfindungsgemäß dadurch
gelöst,
daß
– eine Steuereinrichtung
vorgesehen ist, durch welche der Bremskraftverstärker abhängig von dem durch das Sensormittel
erfaßten
Betätigungsweg
und unabhängig
von der Betätigungskraft
des Bremspedals ansteuerbar ist und daß
– im Notfallsituationen zwischen
dem Bremspedal (
A control device is provided, by means of which the brake booster can be actuated as a function of the actuation travel detected by the sensor means and independently of the actuation force of the brake pedal, and in that
- in an emergency situation between the brake pedal (
Durch die Erfassung des Betätigungswegs des Bremspedals durch das Sensormittel und die Ansteuerung des Bremskraftverstärkers durch die Steuereinrichtung abhängig von dem durch das Sensormittel erfaßten Betätigungsweg und unabhängig von der Betätigungskraft des Bremskraftverstärkers und durch den Pedalwegsimulator der zwischen dem Bremspedal und dem Bremskraftverstärker angeordnet ist, durch den eine auf das Bremspedal wirkende Rückstellkraft unabhängig von einer Betätigung des Bremskraftverstärkers simulierbar ist, wird auf besonders vorteilhafte Weise praktisch eine Entkopplung des Bremspedals von dem Bremskraftverstärker erreicht. Dies ermöglicht auf sehr vorteilhafte Weise aktive Bremseneingriffe, ohne daß die Pedalstellung hierbei in irgendeiner Weise verändert wird. Durch den Pedalwegsimulator tritt beispielsweise der Fahrer des Kraftfahrzeugs nicht ins Leere, während aktive Bremseneingriffe durch die Steuereinrichtung vorgenommen werden, da eine auf das Bremspedal wirkende Rückstellkraft durch den Pedalwegsimulator simuliert wird. In Notfahlsituationen, wenn z.B. eine Ansteuerung des Bremskraftverstärkers durch die Steuereinrichtung nicht möglich ist, ist eine starre Verbindung zwischen dem Bremspedal und einem Stößel des Bremskraftverstärkers herstellbar. Dabei bleibt der Pedalwegsimulator unbetätigt, so daß für den Fahrer neben dem Hauptbremszylinder nicht auch noch der Pedalwegsimulator mittels Fußkraft betätigt werden muß.By the detection of the actuation path of the Brake pedal through the sensor means and the control of the brake booster through the control device dependent from the detected by the sensor means actuating travel and independently of the operating force of the brake booster and by the pedal travel simulator the between the brake pedal and the brake booster is arranged, through which a force acting on the brake pedal restoring force independently from an operation of the brake booster is simulated, becomes practical in a particularly advantageous manner achieved a decoupling of the brake pedal of the brake booster. this makes possible in a very advantageous way active braking interventions, without the pedal position here changed in some way becomes. For example, the driver enters through the pedal travel simulator of the motor vehicle not into the void while active brake interventions be made by the controller, as one on the Brake pedal acting restoring force is simulated by the pedal travel simulator. In emergency situations, if e.g. a control of the brake booster by the control device not possible is a rigid connection between the brake pedal and a plunger of the Brake booster produced. The pedal travel simulator remains unactuated, so that for the driver in addition to the master cylinder not even the pedal travel simulator be operated by foot got to.
Rein prinzipiell sind hinsichtlich der Ausbildung der Steuereinrichtung die unterschiedlichsten Ausführungsformen denkbar.Purely in principle, with regard to the design of the control device the most different embodiments conceivable.
Eine besonders vorteilhafte, da insbesondere auf technisch einfache Weise zu realisierende Ausführungsform sieht vor, daß die Steuereinrichtung ein elektrisches/elektronisches Steuerteil und ein von diesem ansteuerbares Druckregelventil umfaßt, durch welches die Arbeitskammer des Bremskraftverstärkers mit einer pneumatischen Druckversorgung verbunden ist. Durch dieses Steuerteil und das elektrisch ansteuerbare Druckregelventil wird nicht nur auf technisch einfach zu realisierende, sondern auch auf kostengünstige Weise eine aktive pneumatische Bremsanlage ermöglicht.A particularly advantageous, since in particular to be realized in a technically simple manner embodiment provides that the Steuereinrich tion comprises an electrical / electronic control part and a controllable by this pressure control valve, through which the working chamber of the brake booster is connected to a pneumatic pressure supply. By this control part and the electrically controllable pressure control valve is not only technically easy to implement, but also in a cost effective manner enables an active pneumatic brake system.
Vorteilhafterweise umfaßt der Pedalwegsimulator Feder- und Dämpferelemente, durch welche eine vorgegebene Pedalcharakteristik einstellbar ist. Auf diese Weise wird nämlich ermöglicht, daß praktisch jede beliebige Pedalcharakteristik unabhängig von den übrigen Teilen der Bremsanlage einstellbar ist.advantageously, comprises the pedal travel simulator spring and damper elements, through which a predetermined pedal characteristic is adjustable. In this way that is allows that practical any pedal characteristic independent of the other parts the brake system is adjustable.
Bei einer vorteilhafte Ausführungsform ist vorgesehen, daß der Pedalwegsimulator einen Betätigungskolben und zwei unabhängig voneinander axial verschiebliche Teile umfaßt, dessen einer Teil mit dem Bremskraftverstärker verbunden ist und dessen anderer Teil unter Zwischenschaltung der Feder und Dämpferelemente mit dem Bremspedal verbunden ist.at an advantageous embodiment is provided that the Pedal travel simulator an actuating piston and two independently comprises axially displaceable parts, one part of which with the Brake booster is connected and the other part with the interposition of the Spring and damper elements connected to the brake pedal.
Durch die beiden unabhängig voneinander axial verschieblichen Teile des Betätigungskolbens wird auf technisch einfach zu realisierende Weise eine Entkopplung des Bremspedals von dem Bremskraftverstärker erreicht.By the two independent axially displaceable parts of the actuating piston is technically easy to implement a decoupling of the brake pedal from the brake booster reached.
Rein prinzipiell können die beiden Teile des Betätigungskolbens auf die unterschiedlichste Art und Weise angeordnet sein. So könnte beispielsweise eine konzentrische Anordnung vorgesehen sein.Purely in principle can the two parts of the actuating piston be arranged in a variety of ways. For example a concentric arrangement may be provided.
Eine insbesondere hinsichtlich der Ausbildung einer starren Verbindung zwischen dem Bremspedal und dem Bremskraftverstärker sehr vorteilhafte Ausführungsform sieht vor, daß die beiden Teile des Betätigungskolbens hintereinanderliegend angeordnet sind.A in particular with regard to the formation of a rigid connection between the brake pedal and the brake booster very advantageous embodiment provides that the two parts of the actuating piston are arranged one behind the other.
In diesem Falle müssen die beiden Teile zur Ausbildung der starren Verbindung zwischen den Bremspedalen und dem Bremskraftverstärker lediglich derart aneinandergeschoben werden, daß sie aneinander liegen.In in this case the two parts to form the rigid connection between the brake pedals and the brake booster just pushed together in such a way they will be together lie.
Die Erfassung des Betätigungswegs des Bremspedals geschieht vorzugsweise durch einen Wegsensor und einen Bremslichtschalter, wobei der Wegsensor redundant und mit separater Stromversorgung ausgebildet ist.The Detection of the actuation path the brake pedal is preferably done by a displacement sensor and a brake light switch, wherein the displacement sensor redundant and with separate power supply is formed.
Weitere Merkmale und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung sowie der zeichnerischen Darstellung einiger Ausführungsbeispiele.Further Features and advantages of the invention are the subject of the following Description and the drawings of some embodiments.
In der Zeichnung zeigen:In show the drawing:
Eine
Kraftfahrzeug-Bremsanlage, dargestellt in
Der
Pedalweg des Bremspedals
Das
Bremspedal
Der
Pedalwegsimulator
Die
Funktionsweise der in
Die
auf das Bremspedal
Neben
dem Pedalweg und der Betätigung des
Bremslichtschalters
In
Wie
aus
In
Notfallsituationen läßt sich
der Bremssimulator
Zusammenfassend
dargestellt ist die Funktion der in
Der Fahrerwunsch wird ausschließlich durch
Erfassung des Pedalwegs
The driver's request is only by recording the pedal travel
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997150977 DE19750977B4 (en) | 1997-11-18 | 1997-11-18 | braking system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997150977 DE19750977B4 (en) | 1997-11-18 | 1997-11-18 | braking system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19750977A1 DE19750977A1 (en) | 1999-06-02 |
DE19750977B4 true DE19750977B4 (en) | 2005-09-08 |
Family
ID=7849023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997150977 Expired - Fee Related DE19750977B4 (en) | 1997-11-18 | 1997-11-18 | braking system |
Country Status (1)
Country | Link |
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DE (1) | DE19750977B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010034671A1 (en) | 2010-08-18 | 2012-02-23 | Volkswagen Ag | Brake assembly for e.g. electric car, has support assembly provided with hydraulic chamber, and switching valve device that closes chamber during operation mode in which relapse plane is opened |
US9840244B2 (en) | 2015-07-21 | 2017-12-12 | Volkswagen Aktiengesellschaft | Electromechanical brake booster |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1738983B1 (en) | 2002-07-09 | 2010-10-06 | Continental Teves AG & Co. oHG | Brake-by-Wire actuation device |
WO2005012057A1 (en) * | 2003-07-28 | 2005-02-10 | Continental Teves Ag & Co. Ohg | Hydraulic braking system for vehicle |
DE102004011622A1 (en) | 2003-08-06 | 2005-03-31 | Continental Teves Ag & Co. Ohg | Brake actuation unit for actuating a motor vehicle brake system |
WO2005014351A1 (en) * | 2003-08-06 | 2005-02-17 | Continental Teves Ag & Co.Ohg | Brake actuating unit for actuating a motor vehicle brake system |
EP1658210B1 (en) | 2003-08-19 | 2007-08-22 | Continental Teves AG & Co. oHG | Brake system of type brake-by-wire with monitoring module |
DE102004012260B3 (en) * | 2004-03-12 | 2005-09-08 | Lucas Automotive Gmbh | Hydraulic braking force production system for road vehicle has main braking cylinder connected to brake pedal and includes primary and secondary pistons |
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DE3831667A1 (en) * | 1988-09-17 | 1990-03-22 | Teves Gmbh Alfred | BLOCK-PROOF MOTOR VEHICLE BRAKE SYSTEM |
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DE102010034671A1 (en) | 2010-08-18 | 2012-02-23 | Volkswagen Ag | Brake assembly for e.g. electric car, has support assembly provided with hydraulic chamber, and switching valve device that closes chamber during operation mode in which relapse plane is opened |
US9840244B2 (en) | 2015-07-21 | 2017-12-12 | Volkswagen Aktiengesellschaft | Electromechanical brake booster |
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