DE102014225959A1 - Slip-controlled hydraulic vehicle brake system - Google Patents
Slip-controlled hydraulic vehicle brake system Download PDFInfo
- Publication number
- DE102014225959A1 DE102014225959A1 DE102014225959.2A DE102014225959A DE102014225959A1 DE 102014225959 A1 DE102014225959 A1 DE 102014225959A1 DE 102014225959 A DE102014225959 A DE 102014225959A DE 102014225959 A1 DE102014225959 A1 DE 102014225959A1
- Authority
- DE
- Germany
- Prior art keywords
- master cylinder
- brake
- valves
- hydraulic
- throttle
- 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.)
- Pending
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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
- 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
- B60T13/12—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
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- 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
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- 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
- B60T8/48—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
- B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
- B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
Die Erfindung betrifft eine schlupfgeregelte, hydraulische Fahrzeugbremsanlage (1) mit einem Hauptbremszylinder (2), an den in jedem Bremskreis (I, II) über ein Trennventil (3) und Einlassventil (6) Radbremsen (4) und über Auslassventile (8) eine Hydropumpe (10) an die Radbremsen (4) angeschlossen ist, deren Druckseite zwischen dem Trennventil (3) und den Einlassventilen (6) angeschlossen ist. Die Erfindung schlägt vor, eine Drossel (16) zwischen dem Trennventil (3) auf der einen Seite und den Einlassventilen (6) und der Druckseite der Hydropumpe (10) auf der anderen Seite anzuordnen. Das hat den Vorteil, dass die Hydropumpe (10) nicht durch eine Drossel in die Radbremsen (4) fördert.The invention relates to a slip - controlled, hydraulic vehicle brake system (1) with a master brake cylinder (2), to the wheel brakes (4) in each brake circuit (I, II) via an isolation valve (3) and inlet valve (6) and via exhaust valves (8) Hydraulic pump (10) to the wheel brakes (4) is connected, whose pressure side between the separating valve (3) and the inlet valves (6) is connected. The invention proposes to arrange a throttle (16) between the separating valve (3) on the one side and the inlet valves (6) and the pressure side of the hydraulic pump (10) on the other side. This has the advantage that the hydraulic pump (10) does not promote through a throttle in the wheel brakes (4).
Description
Die Erfindung betrifft eine schlupfgeregelte hydraulische Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1. The invention relates to a slip-controlled hydraulic vehicle brake system having the features of the preamble of claim 1.
Stand der TechnikState of the art
Die Offenlegungsschrift
Derartige schlupfgeregelte Fahrzeugbremsanlagen und ihre verschiedenen Funktionsweisen sind dem Fachmann an sich bekannt und sollen hier nicht näher erläutert werden. Sie ermöglichen Bremsregelungen wie Blockierschutzregelungen, Antriebsschlupfregelungen, Schleuderschutzregelungen, automatische Bremsungen usw., für die Abkürzungen wie ABS, ASR, ESP oder FDR gebräuchlich sind. Bei einem Teil solcher Bremsungen wie der Blockierschutzregelung erfolgt ein Druckaufbau mit dem Hauptbremszylinder oder zumindest teilweise mit dem Hauptbremszylinder, bei anderen Regelungen wie beispielsweise einer automatischen Bremsung muss ein Bremsdruck ohne Betätigung des Hauptbremszylinders, d. h. bei zunächst druckloser Fahrzeugbremsanlage mit den Hydropumpen aufgebaut werden. Hierfür ist eine Drosselung eines Förderstroms der Hydropumpen von Nachteil, weil er den Bremsdruckaufbau bremst. Das gilt in besonderem Maß für Bremsungen, die eine schnelle Bremsbetätigung erfordern, wie beispielsweise Schleuderschutzregelungen, bei denen ein Schleudern eines Fahrzeugs umso besser vermieden wird, je schneller eine oder mehrere einzelne Radbremsen ansprechen, oder bei einer automatischen Bremsung, bei der eine schnelle Bremsbetätigung einen Bremsweg verkürzt. Such slip-controlled vehicle brake systems and their various modes of operation are known per se to those skilled in the art and will not be explained in detail here. They allow braking controls such as anti-lock regulations, traction control systems, anti-skid controls, automatic braking, etc., for which abbreviations such as ABS, ASR, ESP or FDR are used. In some of such braking as the anti-lock control pressure builds up with the master cylinder or at least partially with the master cylinder, with other regulations such as an automatic braking, a brake pressure without actuation of the master cylinder, d. H. be set up at the first pressureless vehicle brake system with the hydraulic pumps. For this purpose, a throttling of a flow rate of the hydraulic pumps is disadvantageous because it brakes the brake pressure build-up. This is particularly true for brakes that require a quick brake application, such as skid controls in which skidding of a vehicle is better prevented the faster one or more individual wheel brakes respond, or in an automatic brake where a quick brake application occurs Braking distance shortened.
Offenbarung der ErfindungDisclosure of the invention
Bei der erfindungsgemäßen Fahrzeugbremsanlage mit den Merkmalen des Anspruchs 1 ist eine Drossel zwischen einem Hauptbremszylinder auf der einen Seite und Einlassventilen für Radbremsen und einer Druckseite einer Hydropumpe auf der anderen Seite angeordnet. Dadurch fördert die Hydropumpe in Richtung der Radbremsen nicht durch die Drossel, was einen schnelleren Bremsdruckaufbau in den Radbremsen ermöglicht. Ein weiterer Vorteil ist, dass keine Förderleistung der Hydropumpe an der Drossel verloren geht. In Richtung des Hauptbremszylinders fördert die Hydropumpe durch die Drossel, wodurch Druckpulsationen verringert werden. Das mindert Vibrationen des Hauptbremszylinders und eine Geräuscherzeugung sowie eine Spürbarkeit der Druckpulsationen an einem Fußbremspedal oder einem Handbremshebel.In the vehicle brake system according to the invention with the features of claim 1, a throttle between a master cylinder on one side and intake valves for wheel brakes and a pressure side of a hydraulic pump on the other side is arranged. This does not promote the hydraulic pump in the direction of the wheel brakes through the throttle, which allows a faster brake pressure build-up in the wheel brakes. Another advantage is that no delivery of the hydraulic pump is lost at the throttle. Towards the master cylinder, the hydraulic pump delivers through the throttle, reducing pressure pulsations. This reduces vibration of the master cylinder and a noise generation and a noticeability of the pressure pulsations on a foot brake pedal or a hand brake lever.
Die Erfindung ist für Einkreis-Fahrzeugbremsanlagen mit einer oder mehreren an einen Hauptbremszylinder angeschlossenen Radbremsen ebenso verwendbar wie für Mehrkreis-Fahrzeugbremsanlagen, bei denen mehrere Bremskreise an einen Hauptbremszylinder angeschlossen sind und jeder Bremskreis eine oder mehrere Radbremsen aufweist. The invention is equally applicable for single-circuit vehicle brake systems with one or more wheel brakes connected to a master cylinder as well as for multi-circuit vehicle brake systems in which several brake circuits are connected to a master cylinder and each brake circuit has one or more wheel brakes.
Kurze Beschreibung der ZeichnungShort description of the drawing
Die Erfindung wird nachfolgend anhand in der Zeichnung dargestellter Ausführungsformen näher erläutert. Es zeigen:The invention will be explained in more detail with reference to embodiments shown in the drawing. Show it:
Ausführungsformen der ErfindungEmbodiments of the invention
Jeder Bremskreis
Jede Radbremse
Die Saugseiten der Hydropumpen
In der dargestellten und beschriebenen Ausführungsform der Erfindung sind die Trennventile
In den Bremsleitungen
Bei einer Bremsbetätigung mit dem Hauptbremszylinder
Bei einem Lösen des Hauptbremszylinders
Werden bei einer Radschlupfregelung mit den Einlassventilen
Bei einem Druckaufbau mit den Hydropumpen
In
Im Übrigen stimmen die in beiden Figuren gezeigten Fahrzeugbremsanlagen
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19501760 A1 [0002] DE 19501760 A1 [0002]
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014225959.2A DE102014225959A1 (en) | 2014-12-16 | 2014-12-16 | Slip-controlled hydraulic vehicle brake system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014225959.2A DE102014225959A1 (en) | 2014-12-16 | 2014-12-16 | Slip-controlled hydraulic vehicle brake system |
Publications (1)
Publication Number | Publication Date |
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DE102014225959A1 true DE102014225959A1 (en) | 2016-06-16 |
Family
ID=56082377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014225959.2A Pending DE102014225959A1 (en) | 2014-12-16 | 2014-12-16 | Slip-controlled hydraulic vehicle brake system |
Country Status (1)
Country | Link |
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DE (1) | DE102014225959A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501760A1 (en) | 1995-01-21 | 1996-07-25 | Bosch Gmbh Robert | Method and device for controlling an ABS / ASR system |
-
2014
- 2014-12-16 DE DE102014225959.2A patent/DE102014225959A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19501760A1 (en) | 1995-01-21 | 1996-07-25 | Bosch Gmbh Robert | Method and device for controlling an ABS / ASR system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B60T0008320000 Ipc: B60T0008480000 |