DE102007043596A1 - Hydraulic brake operating method for motor vehicle, involves dividing compression and release processes of braking process into phases, and carrying out detection of phases using output signals from pressure sensor - Google Patents
Hydraulic brake operating method for motor vehicle, involves dividing compression and release processes of braking process into phases, and carrying out detection of phases using output signals from pressure sensor Download PDFInfo
- Publication number
- DE102007043596A1 DE102007043596A1 DE102007043596A DE102007043596A DE102007043596A1 DE 102007043596 A1 DE102007043596 A1 DE 102007043596A1 DE 102007043596 A DE102007043596 A DE 102007043596A DE 102007043596 A DE102007043596 A DE 102007043596A DE 102007043596 A1 DE102007043596 A1 DE 102007043596A1
- Authority
- DE
- Germany
- Prior art keywords
- phases
- brake
- transmission element
- phase
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title claims abstract description 4
- 230000006835 compression Effects 0.000 title abstract 2
- 238000007906 compression Methods 0.000 title abstract 2
- 238000011017 operating method Methods 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000009467 reduction Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 5
- 230000003936 working memory Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/08—Brake cylinders other than ultimate actuators
- B60T17/16—Locking of brake cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2129/00—Type of operation source for auxiliary mechanisms
- F16D2129/06—Electric or magnetic
- F16D2129/08—Electromagnets
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Betrieb einer hydraulischen Fahrzeugbremse für Kraftfahrzeuge, mit einem Bremsgehäuse, in dem ein hydraulischer Betriebsdruckraum von einem Bremskolben begrenzt ist, wobei der Bremskolben im zugespannten Zustand mittels einer Verriegelungsvorrichtung zur Durchführung eines Feststellbremsvorganges verriegelbar ist, deren Verriegelung durch eine Relativbewegung eines Kraftübertragungselements ermöglicht wird, wobei ein mit dem Bremskolben zusammenwirkender Arbeitsspeicher vorgesehen ist, der durch einen absperrbaren Speicherdruckraum, einen den Speicherdruckraum begrenzenden Speicherkolben und mindestens ein sich am Speicherkolben abstützendes Federelement gebildet ist, wobei das Kraftübertragungselement vom Speicherkolben in einer der Zuspannrichtung des Bremskolbens entgegengesetzten Richtung mitnehmbar ist und von einem elektromagnetischen oder einem elektromechanischen Aktuator arretierbar ist, sodass eine Relativbewegung zwischen dem Kraftübertragungselement und dem Speicherkolben ermöglicht wird.The The present invention relates to a method for operating a hydraulic Vehicle brake for Motor vehicles, with a brake housing in which a hydraulic Operating pressure space is limited by a brake piston, wherein the Brake piston in the clamped state by means of a locking device to carry out a parking brake operation can be locked, their locking is made possible by a relative movement of a power transmission element, wherein a cooperating with the brake piston working memory is provided, which by a lockable storage pressure chamber, a storage pressure chamber bounding the accumulator piston and at least a on the accumulator piston supporting Spring element is formed, wherein the force transmission element from the accumulator piston in one of the application direction of the brake piston opposite Direction is entrainable and by an electromagnetic or an electromechanical Actuator is lockable, so that a relative movement between the Power transmission element and the accumulator piston is enabled.
Aus
der
Aufgabe der vorliegenden Erfindung ist es, ein einfaches, kostengünstiges Verfahren zu entwickeln, das zuverlässig den Betriebszustand der hydraulischen Fahrzeugbremse erkennen lässt.task The present invention is a simple, inexpensive To develop a method that reliably the operating state of the hydraulic vehicle brake can be detected.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Zuspannvorgang und der Lösevorgang des Feststellbremsvorganges in Phasen unterteilt wird, wobei eine Erkennung der Phasen mit Hilfe der Ausgangssignale wenigstens eines Drucksensors vorgenommen wird. Bei jedem Zuspann- bzw. Lösevorgang sind bestimmte Phasen zu durchfahren. Der Vorgang wird als abgeschlossen erkannt, wenn diese Phasen in der Reihenfolge durchfahren wurden und erkannt sind.These Task is inventively characterized solved, that the application process and the release operation of the parking brake operation is divided into phases, with a detection of the phases using the output signals of at least one pressure sensor is made. Every time you apply or release are certain phases to pass through. The process is considered complete detected if these phases were traversed in sequence and are recognized.
Bei einer vorteilhaften Weiterbildung des erfindungsgemäßen Verfahrens ist vorgesehen, dass die Position des Kraftübertragungselementes mit Hilfe eines Wegsensors ermittelt wird und zur Erkennung der Phasen verwendet wird.at an advantageous embodiment of the method according to the invention is provided that the position of the power transmission element with the help a displacement sensor is detected and used to detect the phases becomes.
Bei einer weiteren vorteilhaften Weiterbildung wird der Zuspannvorgang in eine Anlegephase, eine Zuspannphase, eine Sicherheitsphase und eine Phase des hydraulischen Druckabbaus unterteilt, während der Lösevorgang in eine Phase des hydraulischen Druckaufbaus, eine Lösephase, eine Sicherheitsphase und eine Phase des hydraulischen Druckabbaus unterteilt wird.at a further advantageous embodiment of the application process in an application phase, an application phase, a safety phase and subdivided a phase of hydraulic pressure reduction during the dissolution process in a phase of hydraulic pressure build-up, a dissolving phase, a safety phase and a phase of hydraulic pressure reduction is divided.
Eine besonders vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass die Phasen mit Hilfe eines Modells bestimmt werden, dem ein Lernverfahren zugeführt wird, um Alterungs- und Verschleißprozesse zu berücksichtigen. Zu diesem Zweck werden zeitliche Kennlinien des hydraulischen Drucks, der hydraulischen Volumenaufnahme des Betriebsdruckraums und des Speicherdruckraums, des Wegs des Kraftübertragungselements und der Feststellkraft ermittelt.A particularly advantageous embodiment of the method according to the invention provides that the phases are determined using a model, the a learning process supplied to take account of aging and wear processes. For this purpose, time characteristics of the hydraulic pressure, the hydraulic volume intake of the operating pressure chamber and the Storage pressure space, the path of the power transmission element and the Determined locking force.
Diese Kennlinien werden dem Modell zugeführt, das die momentane hydraulische Volumenaufnahme des Betriebsdruckraums und des Speicherdruckraums, den zurückgelegte Weg des Kraftübertragungselements und die angelegte Kraft während eines Zuspann- oder Lösevorgangs abschätzt, sodass das Ende eines Zuspann- oder Lösevorganges eindeutig erkennbar ist.These Characteristics are fed to the model, which is the current hydraulic Volume intake of the operating pressure chamber and the storage pressure chamber, the traveled Way of the power transmission element and the applied force during a Clamping or dissolving process estimates, so that the end of a Zuspann- or release process clearly recognizable is.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels im Zusammenhang mit der beiliegenden Zeichnung näher erläutert. In der Zeichnung zeigen:The Invention will be related to an embodiment in the context closer with the enclosed drawing explained. In the drawing show:
Das
in
Der
in die Radbremsen
Die
in
Wie
Die
Mittel zur Arretierung des Bremskolbens
Die
hydraulische Hinterachs-Radbremse ist in
Anschließend wird
der elektromagnetische Aktuator
Zum
Lösen der
Verriegelung wird wiederum ein hydraulischer Druck im Betriebsdruckraum
Der
Weg des Kraftübertragungselements
Die
vier Phasen aus
Nahezu
identisch verläuft
eine Losevorgang der Feststell bremse. An eine Phase des hydraulischen
Druckaufbaus (Phase 1) zum Überwinden
der Federkraft des Tellerfederpakets
Die
oben genannten Phasen können über die
Druckinformationen des in die Radbremsen
Während der
Systementwicklung werden neben dem hydraulischen Druckverlauf auch
die Volumenaufnahme an hydraulischem Druckmittel des Betriebsdruckraums
Diese
Kennlinien werden einem Gesamtmodell zugeführt, das die momentane Volumenaufnahme
an hydraulischem Druckmittel des Betriebsdruckraums
Das Gesamtmodell berücksichtigt zudem äußere Einflussparameter wie Temperatur der Bremsscheibe, Außentemperatur, Lastkollektiv, Spannungsversorgung und Ähnliches.The Overall model considered also external influence parameters such as temperature of the brake disk, outside temperature, load collective, Power supply and the like.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007043596A DE102007043596A1 (en) | 2006-11-15 | 2007-09-13 | Hydraulic brake operating method for motor vehicle, involves dividing compression and release processes of braking process into phases, and carrying out detection of phases using output signals from pressure sensor |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006054133 | 2006-11-15 | ||
DE102006054133.2 | 2006-11-15 | ||
DE102007043596A DE102007043596A1 (en) | 2006-11-15 | 2007-09-13 | Hydraulic brake operating method for motor vehicle, involves dividing compression and release processes of braking process into phases, and carrying out detection of phases using output signals from pressure sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007043596A1 true DE102007043596A1 (en) | 2008-05-21 |
Family
ID=39311386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007043596A Withdrawn DE102007043596A1 (en) | 2006-11-15 | 2007-09-13 | Hydraulic brake operating method for motor vehicle, involves dividing compression and release processes of braking process into phases, and carrying out detection of phases using output signals from pressure sensor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007043596A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010033254A1 (en) * | 2010-08-03 | 2012-02-09 | Lucas Automotive Gmbh | Vehicle brake system for a motor vehicle and method for driving the vehicle brake system |
-
2007
- 2007-09-13 DE DE102007043596A patent/DE102007043596A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010033254A1 (en) * | 2010-08-03 | 2012-02-09 | Lucas Automotive Gmbh | Vehicle brake system for a motor vehicle and method for driving the vehicle brake system |
US9156459B2 (en) | 2010-08-03 | 2015-10-13 | Lucas Automotive Gmbh | Vehicle brake system for a motor vehicle and method for actuating the vehicle brake system |
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Legal Events
Date | Code | Title | Description |
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OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8105 | Search report available | ||
R005 | Application deemed withdrawn due to failure to request examination | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140916 |