DE102013211600A1 - Slip-controlled hydraulic vehicle brake system and slip control method - Google Patents
Slip-controlled hydraulic vehicle brake system and slip control method Download PDFInfo
- Publication number
- DE102013211600A1 DE102013211600A1 DE102013211600.4A DE102013211600A DE102013211600A1 DE 102013211600 A1 DE102013211600 A1 DE 102013211600A1 DE 102013211600 A DE102013211600 A DE 102013211600A DE 102013211600 A1 DE102013211600 A1 DE 102013211600A1
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- Germany
- Prior art keywords
- brake
- circuit
- slip
- brake system
- master cylinder
- 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.)
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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
- B60T8/42—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 having expanding chambers for controlling pressure, i.e. closed systems
- B60T8/4275—Pump-back systems
-
- 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
- B60T13/14—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 using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/145—Master cylinder integrated or hydraulically coupled with booster
- B60T13/146—Part of the system directly actuated by booster pressure
-
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
-
- 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
- B60T8/343—Systems characterised by their lay-out
- B60T8/344—Hydraulic systems
- B60T8/347—3 Channel systems
-
- 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
- B60T8/343—Systems characterised by their lay-out
- B60T8/344—Hydraulic systems
- B60T8/348—4 Channel systems
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Die Erfindung betrifft eine schlupfgeregelte hydraulische Fahrzeugbremsanlage (1). Zur Vereinfachung des Aufbaus schlägt die Erfindung vor, in einem Hinterachs-Bremskreis II auf einen Hydrospeicher und eine Hydropumpe zu verzichtenThe invention relates to a slip-controlled hydraulic vehicle brake system (1). To simplify the construction, the invention proposes to dispense with a hydraulic accumulator and a hydraulic pump in a rear axle brake circuit II
Description
Die Erfindung betrifft eine schlupfgeregelte hydraulische Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1 und ein Verfahren zur Schlupfregelung einer solchen Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 8. Schlupfregelungen und schlupfgeregelte Fahrzeugbremsanlagen sind bekannt, sie dienen einer Bremsblockierschutzregelung, einer Antriebsschlupfregelung und/oder einer Fahrdynamikregelung. Für solche Schlupfregelungen sind die Abkürzungen ABS, ASR, FDR, ESP gebräuchlich. Fahrdynamikregelungen werden auch als Schleuderschutzregelungen oder Stabilitätsregelungen bzw. -programme bezeichnet. Die Aufzählung ist nicht abschließend.The invention relates to a slip-controlled hydraulic vehicle brake system having the features of the preamble of claim 1 and a method for slip control of such a vehicle brake system having the features of the preamble of
Stand der TechnikState of the art
Bekannt sind schlupfgeregelte hydraulische Fahrzeugbremsanlagen für Personenkraftwagen mit vier Radbremsen, die aufgeteilt in zwei Bremskreise an einen Zweikreis-Hauptbremszylinder angeschlossen sind. Jeder Bremskreis ist über ein Trennventil an dem Hauptbremszylinder angeschlossen. Zu einer radindividuellen Schlupfregelung ist jede Radbremse über ein Druckaufbauventil an das Trennventil und über ein Druckabsenkventil an einen Hydrospeicher und an eine Saugseite einer Hydropumpe angeschlossen. In jedem Bremskreis ist ein Hydrospeicher und eine Hydropumpe vorhanden. Die Hydropumpe wird vielfach auch als Rückförderpumpe bezeichnet. Der Hydrospeicher ist ein Druckspeicher, der Bremsflüssigkeit mit einem Maximaldruck der Fahrzeugbremsanlage aufnehmen kann. Die Druckseite der Hydropumpe ist zwischen den Druckaufbauventilen und den Trennventilen angeschlossen. Durch Schließen des Trennventils kann der Hauptbremszylinder hydraulisch von dem Bremskreis und durch Schließen aller Trennventile von der Fahrzeugbremsanlage getrennt werden. Die Druckaufbauventile und Druckabsenkventile bilden Radbremsdruckmodulationsventilanordnungen, mit denen ein Radbremsdruck radindividuell in jeder Radbremse geregelt werden. Das ist dem Fachmann bekannt und wird hier nicht näher erläutert. Die Funktionen eines Druckaufbauventils und eines Druckabsenkventils können auch in einem Ventil zusammengefasst sein.Are known slip-controlled hydraulic vehicle brake systems for passenger cars with four wheel brakes, which are divided into two brake circuits connected to a dual-circuit master cylinder. Each brake circuit is connected via an isolation valve to the master cylinder. To a wheel-specific slip control each wheel brake is connected via a pressure build-up valve to the isolation valve and via a pressure reduction valve to a hydraulic accumulator and to a suction side of a hydraulic pump. Each brake circuit has a hydraulic accumulator and a hydraulic pump. The hydraulic pump is often referred to as a return pump. The hydraulic accumulator is a pressure accumulator that can absorb brake fluid with a maximum pressure of the vehicle brake system. The pressure side of the hydraulic pump is connected between the pressure build-up valves and the isolation valves. By closing the isolation valve, the master cylinder can be hydraulically isolated from the brake circuit and by closing all isolation valves of the vehicle brake system. The pressure build-up valves and pressure reduction valves form Radbremsdruckmodulationsventilanordnungen with which a wheel brake pressure are controlled wheel individually in each wheel. This is known to the person skilled in the art and will not be explained in more detail here. The functions of a pressure build-up valve and a pressure reduction valve can also be combined in one valve.
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße schlupfgeregelte hydraulische Fahrzeugbremsanlage mit den Merkmalen des Anspruchs 1 vereinfacht den Aufbau indem sie (mindestens) einen Bremskreis ohne Hydrospeicher aufweist. Dieser Bremskreis wird hier zur eindeutigen Bezeichnung als speicherloser Bremskreis bezeichnet. Gemeint ist der Druckspeicher, der in der Lage ist, unter Druck stehende Bremsflüssigkeit aufzunehmen und zwischenzuspeichern. Die Fahrzeugbremsanlage kann eine Ein- oder Mehrkreisfahrzeugbremsanlage sein, vorzugsweise ist sie eine Zweikreis-Fahrzeugbremsanlage. Die erfindungsgemäße Fahrzeugbremsanlage ist nicht auf Personenwagen beschränkt, sie kann auch in Lastkraftwagen Verwendung finden. Ebenfalls ist eine Verwendung für Krafträder mit ein oder zwei Radbremsen an einem Vorderrad und üblicherweise einer Radbremse am Hinterrad möglich. Der Hauptbremszylinder wird in diesem Fall üblicherweise mit einem Handbremshebel anstatt eines Fußbremspedals betätigt. Vorteil der Erfindung ist die Vereinfachung der Fahrzeugbremsanlage, sie weist weniger Einzelteile bzw. Komponenten auf und ermöglicht eine Verkleinerung des notwendigen Bauraums.The slip-controlled hydraulic vehicle brake system according to the invention with the features of claim 1 simplifies the structure by having (at least) a brake circuit without hydraulic accumulator. This brake circuit is referred to the unique designation as a memory-free brake circuit. This refers to the pressure accumulator, which is able to absorb pressurized brake fluid and caching. The vehicle brake system may be a single or multi-circuit vehicle brake system, preferably it is a dual-circuit vehicle brake system. The vehicle brake system according to the invention is not limited to passenger cars, they can also be used in trucks. Also, a use for motorcycles with one or two wheel brakes on a front wheel and usually a wheel brake on the rear wheel is possible. The master cylinder is usually operated in this case with a handbrake lever instead of a Fußbremspedals. Advantage of the invention is the simplification of the vehicle brake system, it has fewer items or components and allows a reduction of the necessary space.
Die Unteransprüche haben vorteilhafte Ausgestaltungen und Weiterbildungen der im Anspruch 1 angegebenen Erfindung zum Gegenstand.The dependent claims have advantageous refinements and developments of the invention specified in claim 1 to the subject.
Das erfindungsgemäße Verfahren mit den Merkmalen des Anspruchs 8 sieht vor, dass der speicherlose und/oder ein pumpenloser Bremskreis durch Schließen eines Ventils vom Hauptbremszylinder getrennt wird, wenn bei Betätigung des Hauptbremszylinders ein vorgegebener Betätigungsweg erreicht oder überschritten wird. Das Ventil kann beispielsweise ein Trennventil oder alle Druckaufbauventile oder alle Druckabsenkventile dieses Bremskreises sein. Der vorgegebene Betätigungsweg ist insbesondere ein maximal erlaubter Pedal- bzw. Kolbenweg des Hauptbremszylinders. Durch das Trennen des speicher- und/oder pumpenlosen Bremskreises vom Hauptbremszylinder wird vermieden, dass der vorgegebene Betätigungsweg des Hauptbremszylinders überschritten wird. Dabei wird in Kauf genommen, dass ab Erreichen des vorgegebenen Betätigungswegs in diesem Bremskreis keine Schlupfregelung mehr stattfindet. Der oder die anderen Bremskreise werden vorzugsweise weiterhin schlupfgeregelt.The inventive method with the features of
Kurze Beschreibung der ZeichnungShort description of the drawing
Die Erfindung wird nachfolgend anhand zweier in der Zeichnung dargestellter Ausführungsformen näher erläutert. Die beiden Figuren zeigen hydraulische Schaltpläne zweier erfindungsgemäßer Fahrzeugbremsanlagen.The invention will be explained in more detail with reference to two embodiments shown in the drawings. The two figures show hydraulic circuit diagrams of two inventive vehicle brake systems.
Ausführungsformen der ErfindungEmbodiments of the invention
Die in
Jede der Radbremsen
Im Bremskreis I, also dem Primär- oder Stangenkreis, an den die Radbremsen
Der Hydrospeicher
Im Bremskreis II, dem Sekundär- oder Schwimmkreis, an den die Radbremsen
Die Druckaufbauventile
Der Bremskreis II weist weder eine Hydropumpe noch einen (Druck-)Hydrospeicher auf, er kann deswegen auch als pumpenlos bzw. speicherlos bezeichnet werden. Möglich sind auch Ausführungsformen der erfindungsgemäßen Fahrzeugbremsanlage
Wird bei betätigtem Hauptbremszylinder
Werden im Bremskreis II die Druckaufbauventile
Oder die Druckabsenkventile
Wegen der eingeschränkten Schlupfregelung in Bremskreis II ist vorgesehen, den Bremskreis II einer Hinterachse eines Fahrzeugs zuzuordnen, die beim Bremsen entlastet und deren Beitrag zur Verzögerung des Fahrzeugs in Folge der Entlastung beim Bremsen verkleinert ist. Die Vorderräder, die den größeren Beitrag zur Verzögerung des Fahrzeugs leisten, bleiben brems- und schlupfregelbar. Es ist allerdings wie gesagt nicht zwingend für die Erfindung, dass die der Hinterachse zugeordneten Radbremsen
Wie bereits gesagt, ist die in
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013211600.4A DE102013211600A1 (en) | 2013-06-20 | 2013-06-20 | Slip-controlled hydraulic vehicle brake system and slip control method |
IN1416DE2014 IN2014DE01416A (en) | 2013-06-20 | 2014-05-28 | |
CN201410362903.4A CN104228802B (en) | 2013-06-20 | 2014-06-18 | The Vehicular brake device of the hydraulic pressure of slidable adjustment and the method for slidable adjustment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013211600.4A DE102013211600A1 (en) | 2013-06-20 | 2013-06-20 | Slip-controlled hydraulic vehicle brake system and slip control method |
Publications (1)
Publication Number | Publication Date |
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DE102013211600A1 true DE102013211600A1 (en) | 2014-12-24 |
Family
ID=52010379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013211600.4A Withdrawn DE102013211600A1 (en) | 2013-06-20 | 2013-06-20 | Slip-controlled hydraulic vehicle brake system and slip control method |
Country Status (3)
Country | Link |
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CN (1) | CN104228802B (en) |
DE (1) | DE102013211600A1 (en) |
IN (1) | IN2014DE01416A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017012864A1 (en) * | 2015-07-17 | 2017-01-26 | Robert Bosch Gmbh | Hydraulic brake system, method for operating the hydraulic brake system, and control unit for actuating components of the hydraulic brake system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101684132B1 (en) * | 2015-06-23 | 2016-12-07 | 현대자동차주식회사 | Electro-hydraulic brake system having isolated circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008004201A1 (en) * | 2008-01-14 | 2009-07-16 | Robert Bosch Gmbh | Brake system and method for controlling a brake system |
DE102009001401A1 (en) * | 2009-03-09 | 2010-09-16 | Robert Bosch Gmbh | Brake system, method for operating a brake system and method of manufacturing a brake system |
DE102011077329A1 (en) * | 2010-07-23 | 2012-01-26 | Continental Teves Ag & Co. Ohg | Method for controlling an electro-hydraulic brake system and electro-hydraulic brake system |
DE102011005822A1 (en) * | 2011-03-21 | 2012-09-27 | Robert Bosch Gmbh | Braking systems and method for operating a braking system for a vehicle |
-
2013
- 2013-06-20 DE DE102013211600.4A patent/DE102013211600A1/en not_active Withdrawn
-
2014
- 2014-05-28 IN IN1416DE2014 patent/IN2014DE01416A/en unknown
- 2014-06-18 CN CN201410362903.4A patent/CN104228802B/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017012864A1 (en) * | 2015-07-17 | 2017-01-26 | Robert Bosch Gmbh | Hydraulic brake system, method for operating the hydraulic brake system, and control unit for actuating components of the hydraulic brake system |
Also Published As
Publication number | Publication date |
---|---|
CN104228802A (en) | 2014-12-24 |
IN2014DE01416A (en) | 2015-06-12 |
CN104228802B (en) | 2018-04-24 |
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