DE102012221146A1 - Brake system for motor vehicles, has valve assembly that is designed for influencing hydraulic simulator characteristics, where pedal characteristic defined by simulator spring is superimposed on valve-controlled restoring force component - Google Patents
Brake system for motor vehicles, has valve assembly that is designed for influencing hydraulic simulator characteristics, where pedal characteristic defined by simulator spring is superimposed on valve-controlled restoring force component Download PDFInfo
- Publication number
- DE102012221146A1 DE102012221146A1 DE201210221146 DE102012221146A DE102012221146A1 DE 102012221146 A1 DE102012221146 A1 DE 102012221146A1 DE 201210221146 DE201210221146 DE 201210221146 DE 102012221146 A DE102012221146 A DE 102012221146A DE 102012221146 A1 DE102012221146 A1 DE 102012221146A1
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- Germany
- Prior art keywords
- simulator
- pressure
- brake system
- brake
- valve
- 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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- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
-
- 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
- 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
- B60T13/74—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 electrical assistance or drive
- B60T13/745—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 electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
-
- 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
- B60T8/4081—Systems with stroke simulating devices for driver input
Abstract
Description
Die vorliegende Erfindung betrifft eine Bremsanlage für Kraftfahrzeuge, die in einer “Brake-by-Wire”-Betriebsart sowohl vom Fahrzeugführer als auch unabhängig vom Fahrzeugführer ansteuerbar ist, vorzugsweise in der “Brake-by-Wire”-Betriebsart betrieben wird und in mindestens einer Rückfallbetriebsart betrieben werden kann, in der nur der Betrieb durch den Fahrzeugführer möglich ist, mit
- a) einem Bremspedal zum Betätigen eines Hauptbremszylinders mit zwei hintereinander angeordneten Kolben, die Druckräume begrenzen, an die zwei Bremskreise angeschlossen sind, auf die bei der Betätigung der Bremsanlage durch den Fahrzeugführer eine Betätigungskraft (Pedalkraft) ausgeübt wird und die bei unbetätigtem Bremspedal von Rückstellfedern in eine Ausgangsstellung positioniert werden,
- b) einem unter Atmosphärendruck stehenden Druckmittelvorratsbehälter mit den Druckräumen zugeordneten Kammern,
- c) einer Wegerfassungseinrichtung, die den Betätigungsweg des Bremspedals oder eines mit dem Bremspedal verbundenen Kolbens erfasst,
- d) einem Simulator, der eine Druckmittelvolumenaufnahme eines hydraulischen Bremssystems nachbildet und damit in der „Brake-by-wire“-Betriebsart dem Fahrzeugführer das gewohnte Bremspedalgefühl vermittelt, wobei der Simulator mit dem ersten Druckraum hydraulisch verbunden ist, mit mindestens einem Simulatorkolben, einer Kammer, die in der “Brake-by-Wire”-Betriebsart das aus dem ersten Druckraum verdrängte Druckmittelvolumen aufnimmt, sowie mit einer weiteren, eine Simulatorfeder aufnehmenden Simulatorkammer,
- e) einer elektrisch steuerbaren Druckquelle,
- f) Trennventilen zum Absperren der Druckräume von den Bremskreisen, sowie
- g) einer Ventilanordnung, die an die die Simulatorfeder aufnehmende Simulatorkammer angeschlossen ist.
- a) a brake pedal for actuating a master cylinder with two successively arranged pistons bounding the pressure chambers are connected to the two brake circuits on the actuation of the brake system by the driver an actuating force (pedal force) is exercised and the unoperated brake pedal of return springs in be positioned a starting position
- b) a pressurized medium reservoir, which is under atmospheric pressure, with chambers assigned to the pressure chambers,
- c) a displacement detection device which detects the actuating travel of the brake pedal or a piston connected to the brake pedal,
- d) a simulator, which simulates a pressure fluid volume of a hydraulic brake system and thus in the "brake-by-wire" mode gives the driver the usual brake pedal feel, the simulator is hydraulically connected to the first pressure chamber, with at least one simulator piston, a chamber , which receives in the "brake-by-wire" mode displaced from the first pressure chamber volume of pressure medium, and with another, a simulator spring receiving simulator chamber,
- e) an electrically controllable pressure source,
- f) isolation valves to shut off the pressure chambers of the brake circuits, as well
- g) a valve assembly which is connected to the simulator receiving the simulator chamber.
Eine derartige Bremsanlage für Kraftfahrzeuge ist in der
Es ist daher Aufgabe der vorliegenden Erfindung, eine Bremsanlage der eingangs genannten Art dahingehend zu verbessern, dass die technischen Voraussetzungen geschaffen werden, dem Fahrzeugführer eine temporäre, elektronisch steuerbare Pedalrückwirkung zu vermitteln.It is therefore an object of the present invention to improve a brake system of the type mentioned in that the technical requirements are created to give the driver a temporary, electronically controllable pedal reaction.
Diese Aufgabe wird erfindungsgemäß durch eine Bremsanlage gemäß Anspruch 1 gelöst.This object is achieved by a brake system according to claim 1.
Der Erfindung liegt der Gedanke zugrunde, dass die Ventilanordnung, die an die Simulatorfederkammer angeschlossen ist, zur hydraulischen Beeinflussung der Simulatorcharakteristik ausgebildet ist, wobei der durch die Simulatorfeder definierten Pedalcharakteristik eine ventilgesteuerte Rückstellkraftkomponente überlagert wird. The invention is based on the idea that the valve arrangement, which is connected to the simulator spring chamber, is designed to hydraulically influence the simulator characteristic, the pedal characteristic defined by the simulator spring being superposed on a valve-controlled restoring force component.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung anhand einer Figur. Advantageous developments of the invention will become apparent from the dependent claims and the following description with reference to a figure.
Die vorliegende Erfindung wird in der folgenden Beschreibung im Zusammenhang mit der beiliegenden schematischen Zeichnung an einem Ausführungsbeispiel näher erläutert. Dabei zeigt die einzige Figur der Zeichnung ein hydraulisches Schaltbild der erfindungsgemäßen Bremsanlage. The present invention will be explained in more detail in the following description in conjunction with the accompanying schematic drawing of an embodiment. The sole figure of the drawing shows a hydraulic circuit diagram of the brake system according to the invention.
Die in der Zeichnung dargestellte Bremsanlage besteht im Wesentlichen aus einer mittels eines Betätigungs- bzw. Bremspedals
Die vorhin genannten Komponenten
Wie außerdem in der Zeichnung dargestellt ist, weist die hydraulische Betätigungseinheit
Außerdem ist aus der zeichnerischen Darstellung der erfindungsgemäßen Bremsanlage ersichtlich, dass der vorhin genannte Simulator
Die Dichtungsanordnung
Wie weiterhin der Figur zu entnehmen ist, ist die eingangs erwähnte, elektrisch steuerbare Druckquelle
Die in der Zeichnung schematisch dargestellte Bremsanlage weist schließlich eine an die Simulatorfederkammer
Im Rahmen der vorliegenden Erfindung können zahlreiche Modifikationen vorgeschlagen werden. Während im gezeigten und beschriebenen Ausführungsbeispiel die Radbremsdruckmodulationseinheit in herkömmlicher Weise mit je einem stromlos offenen und einem stromlos geschlossenen Elektromagnetventil ausgestattet ist, kann die Bremsdruckmodulation beispielsweise mittels Modulatoren durchgeführt werden, die nach dem Prinzip eines Schaltmultiplex- bzw. eines Analogmultiplex arbeiten.Numerous modifications can be proposed in the context of the present invention. While in the embodiment shown and described, the Radbremsdruckmodulationseinheit is equipped in a conventional manner, each with a normally open and a normally closed solenoid valve, the brake pressure modulation can be performed for example by means of modulators operating on the principle of a switching multiplex or an analog multiplex.
Die Funktionsweise der erfindungsgemäßen Bremsanlage sowohl in der bevorzugten Betriebsart „Brake-by-wire“ als auch in der sog. Rückfallbetriebsart ergibt sich für den auf dem einschlägigen technischen Gebiet tätigen Fachmann aus dem Offenbarungsgehalt der vorliegenden Patentanmeldung und braucht deswegen nicht näher erläutert zu werden.The operation of the brake system according to the invention both in the preferred mode "brake-by-wire" and in the so-called. Fallback mode results for the working in the relevant technical field expert from the disclosure of the present patent application and therefore need not be explained in detail.
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 10159788 B4 [0002] DE 10159788 B4 [0002]
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210221146 DE102012221146A1 (en) | 2012-11-20 | 2012-11-20 | Brake system for motor vehicles, has valve assembly that is designed for influencing hydraulic simulator characteristics, where pedal characteristic defined by simulator spring is superimposed on valve-controlled restoring force component |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210221146 DE102012221146A1 (en) | 2012-11-20 | 2012-11-20 | Brake system for motor vehicles, has valve assembly that is designed for influencing hydraulic simulator characteristics, where pedal characteristic defined by simulator spring is superimposed on valve-controlled restoring force component |
Publications (1)
Publication Number | Publication Date |
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DE102012221146A1 true DE102012221146A1 (en) | 2014-05-22 |
Family
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DE201210221146 Pending DE102012221146A1 (en) | 2012-11-20 | 2012-11-20 | Brake system for motor vehicles, has valve assembly that is designed for influencing hydraulic simulator characteristics, where pedal characteristic defined by simulator spring is superimposed on valve-controlled restoring force component |
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DE (1) | DE102012221146A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013018072A1 (en) * | 2013-11-28 | 2015-06-11 | Lucas Automotive Gmbh | Electrohydraulic motor vehicle brake system |
WO2017152168A1 (en) * | 2016-03-04 | 2017-09-08 | Continental Automotive Systems, Inc. | Braking systems for vehicles |
EP3351445A1 (en) * | 2017-01-23 | 2018-07-25 | FCA Italy S.p.A. | Brake system for motor-vehicles |
WO2021226889A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Hydraulic pressure adjustment device, hydraulic pressure adjustment system, brake system and control method |
WO2021226887A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Hydraulic adjustment unit, brake system and control method |
DE102016224052B4 (en) | 2015-12-04 | 2024-01-11 | Hl Mando Corporation | Electric braking system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10159788B4 (en) | 2001-12-05 | 2004-03-04 | Daimlerchrysler Ag | Pedal path simulator with brake fluid return and tandem master cylinder for an electrohydraulic brake system |
EP1418105A1 (en) * | 2002-11-05 | 2004-05-12 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Device and method to simulate a pedal characteristic |
DE102008001061A1 (en) * | 2008-04-08 | 2009-10-15 | Robert Bosch Gmbh | Actuation unit for a master cylinder of a hydraulic vehicle brake system |
-
2012
- 2012-11-20 DE DE201210221146 patent/DE102012221146A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10159788B4 (en) | 2001-12-05 | 2004-03-04 | Daimlerchrysler Ag | Pedal path simulator with brake fluid return and tandem master cylinder for an electrohydraulic brake system |
EP1418105A1 (en) * | 2002-11-05 | 2004-05-12 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Device and method to simulate a pedal characteristic |
DE102008001061A1 (en) * | 2008-04-08 | 2009-10-15 | Robert Bosch Gmbh | Actuation unit for a master cylinder of a hydraulic vehicle brake system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013018072A1 (en) * | 2013-11-28 | 2015-06-11 | Lucas Automotive Gmbh | Electrohydraulic motor vehicle brake system |
US9956943B2 (en) | 2013-11-28 | 2018-05-01 | Lucas Automotive Gmbh | Electrohydraulic motor vehicle brake system and method for ventilation of the simulator circuit thereof; method for testing the functionality of a further electrohydraulic motor vehicle brake system, and computer program products for the methods |
DE102016224052B4 (en) | 2015-12-04 | 2024-01-11 | Hl Mando Corporation | Electric braking system |
WO2017152168A1 (en) * | 2016-03-04 | 2017-09-08 | Continental Automotive Systems, Inc. | Braking systems for vehicles |
EP3351445A1 (en) * | 2017-01-23 | 2018-07-25 | FCA Italy S.p.A. | Brake system for motor-vehicles |
WO2021226889A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Hydraulic pressure adjustment device, hydraulic pressure adjustment system, brake system and control method |
WO2021226887A1 (en) * | 2020-05-13 | 2021-11-18 | 华为技术有限公司 | Hydraulic adjustment unit, brake system and control method |
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