DE102019210611A1 - Electro-hydraulic external vehicle brake system, especially for an autonomously driving land vehicle - Google Patents
Electro-hydraulic external vehicle brake system, especially for an autonomously driving land vehicle Download PDFInfo
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- DE102019210611A1 DE102019210611A1 DE102019210611.0A DE102019210611A DE102019210611A1 DE 102019210611 A1 DE102019210611 A1 DE 102019210611A1 DE 102019210611 A DE102019210611 A DE 102019210611A DE 102019210611 A1 DE102019210611 A1 DE 102019210611A1
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- brake system
- vehicle brake
- external force
- brake
- vehicle
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Classifications
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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
- B60T13/74—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
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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
- 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
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
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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
- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/085—Brake-action initiating means for personal initiation hand actuated by electrical means, e.g. travel, force sensors
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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
- 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
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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
- 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
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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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/404—Brake-by-wire or X-by-wire failsafe
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/82—Brake-by-Wire, EHB
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Die Erfindung schlägt vor, eine elektrohydraulische Fremdkraft-Fahrzeugbremsanlage (1) für einen autonom auf öffentlichen Straßen fahrenden Kraftwagen mit zwei redundanten Fremdkraft-Bremsdruckerzeugern (3, 4) zu versehen, so dass bei Selbstfahrt und Ausfall eines Fremdkraft-Bremsdruckerzeugers (3, 4) der andere Fremdkraft-Bremsdruckerzeuger (4, 3) den Kraftwagen ohne Fahrereingriff bremsen kann.The invention proposes to provide an electro-hydraulic external power vehicle brake system (1) for a motor vehicle that drives autonomously on public roads with two redundant external power brake pressure generators (3, 4), so that if an external power brake pressure generator (3, 4) is driven on one's own, the other external force brake pressure generator (4, 3) can brake the motor vehicle without driver intervention.
Description
Die Erfindung betrifft eine elektrohydraulische Fremdkraft-Fahrzeugbremsanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an electro-hydraulic power vehicle brake system with the features of the preamble of
Stand der TechnikState of the art
Zu einem autonomen Fahren bis zum Level
Die Offenlegungsschrift
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße, elektrohydraulische Fremdkraft-Fahrzeugbremsanlage mit den Merkmalen des Anspruchs 1 weist einen ersten Fremdkraft-Bremsdruckerzeuger auf, an den eine, mehrere oder alle hydraulischen Radbremsen der Fahrzeugbremsanlage angeschlossen sind. Des Weiteren weist sie einen Muskelkraft-Sollwertgeber für eine Bremskraft auf, die durch eine Betätigung der Radbremse /n mit dem Fremdkraft-Bremsdruckerzeuger erzeugt werden soll, wobei der Sollwert anstelle der Bremskraft auch ein Bremsdruck in der Fahrzeugbremsanlage oder ein Radbremsdruck oder Radbremsdrücke in der oder den hydraulischen Radbremsen sein kann. „Muskelkraft-Sollwertgeber“ bedeutet, dass der Sollwertgeber per Muskelkraft, typischerweise also per Fuß oder Hand insbesondere über ein Fußbremspedal oder einen Handbremshebel betätigbar ist. Erfindungsgemäß ist keine Muskelkraftbetätigung der Fahrzeugbremsanlage mit dem Sollwertgeber möglich. Das heißt, die Radbremsen sind nicht an den Sollwertgeber angeschlossen und lassen sich nicht mit diesem betätigen, sondern müssen mit dem Fremdkraft-Bremsdruckerzeuger betätigt werden.The electrohydraulic external force vehicle brake system according to the invention with the features of
Durch eine fehlende Anbindung der Radbremse/n an den Sollwertgeber vereinfacht sich ein Aufbau der Fahrzeugbremsanlage, es entfallen beispielsweise Ventile, die einen eventuellen Muskelkraft-Hauptbremszylinder des Sollwertgebers bei einer Fremdkraftbremsung hydraulisch von der Fahrzeugbremsanlage oder jedenfalls von den Radbremsen trennen.The lack of a connection between the wheel brake (s) and the setpoint generator simplifies the structure of the vehicle brake system; for example, there are no valves that hydraulically separate any muscle-power master brake cylinder of the setpoint generator from the vehicle brake system or at least from the wheel brakes in the event of external power braking.
Für ein autonomes Fahren bis zu den Leveln
Zum autonomen Fahren auf öffentlichen Straßen sieht der Anspruch 2 zwei voneinander unabhängige Fremdkraft-Bremsdruckerzeuger vor, mit denen die Radbremsen der Fahrzeugbremsanlage wahlweise betätigt werden können und von denen vorzugsweise jeder Fremdkraft-Bremsdruckerzeuger eine eigene Energieversorgung aufweist (Anspruch 3). Es können alle Radbremsen der Fahrzeugbremsanlage an beide Fremdkraft-Bremsdruckerzeuger oder ein Teil der Radbremsen an einen und ein anderer Teil der Radbremsen an den anderen Fremdkraft-Bremsdruckerzeuger angeschlossen sein, wobei nicht ausgeschlossen ist, dass ein Teil der Radbremsen an beide Fremdkraft-Bremsdruckerzeuger angeschlossen ist.For autonomous driving on public roads,
Die erfindungsgemäße Fahrzeugbremsanlage kann einen oder mehrere Bremskreise mit jeweils einer oder mehreren Radbremsen aufweisen. Für einen Personenkraftwagen weist die Fahrzeugbremsanlage insbesondere zwei Bremskreise mit jeweils zwei Radbremsen auf. Auch hierdurch wird die Verfügbarkeit der Fahrzeugbremsanlage erhöht. Es können alle Bremskreise an beide Fremdkraft-Bremsdruckerzeuger oder ein oder mehrere Bremskreise an einen und ein andererer oder mehrere Bremskreise an den anderen Fremdkraft-Bremsdruckerzeuger angeschlossen werdeen.The vehicle brake system according to the invention can have one or more brake circuits, each with one or more wheel brakes. For a passenger car, the vehicle brake system has, in particular, two brake circuits, each with two wheel brakes. This also increases the availability of the vehicle brake system. All brake circuits can be connected to both external force brake pressure generators or one or more brake circuits can be connected to one and another or several brake circuits can be connected to the other external force brake pressure generator.
Die Bezeichnung „autonom fahrend“ bezieht sich auf die Möglichkeit, autonom zu fahren, die erfindungsgemäße Fahrzeugbremsanlage ist allerdings auch für nicht oder auf niedrigerem Level autonom fahrende Landfahrzeuge einsetzbar.The term “autonomous driving” refers to the possibility of driving autonomously, the The vehicle brake system according to the invention can, however, also be used for land vehicles that are not autonomous or are driving at a lower level.
Die Unteransprüche haben vorteilhafte Ausgestaltungen und Weiterbildungen der im Anspruch 1 angegebenen Erfindung zum Gegenstand.The subclaims relate to advantageous refinements and developments of the invention specified in
Sämtliche in der Beschreibung und der Zeichnung offenbarten Merkmale können einzeln für sich oder in grundsätzlich beliebiger Kombination bei Ausführungsbeispielen der Erfindung verwirklicht sein. Ausführungen der Erfindung, die nicht alle, sondern nur ein oder mehrere Merkmale eines Anspruchs aufweisen, sind grundsätzlich möglich.All of the features disclosed in the description and the drawing can be implemented individually or in basically any combination in exemplary embodiments of the invention. Embodiments of the invention which do not have all but only one or more features of a claim are fundamentally possible.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Die Erfindung wird nachfolgend anhand zweier in der Zeichnung dargestellter Ausführungsformen näher erläutert. Die beiden Figuren zeigen Hydraulikschaltpläne zweier elektrohydraulischen Fremdkraft-Fahrzeugbremsanlagen gemäß der Erfindung.The invention is explained in more detail below with reference to two embodiments shown in the drawing. The two figures show hydraulic circuit diagrams of two electro-hydraulic power vehicle brake systems according to the invention.
Ausführungsformen der ErfindungEmbodiments of the invention
Die in
Die erfindungsgemäße Fahrzeugbremsanlage
Die Fahrzeugbremsanlage
In der dargestellten und beschriebenen Ausführungsform der Erfindung weist der erste Fremdkraft-Bremsdruckerzeuger
An den ersten Fremdkraft-Bremsdruckerzeuger
Der zweite Fremdkraft-Bremsdruckerzeuger
Über je ein Auslassventil
Die Erfindung ist nicht auf die beschriebenen Fremdkraft-Bremsdruckerzeuger
Aus Richtung des Bremsflüssigkeitsvorratsbehälters
Wie oben geschrieben lässt sich die Fahrzeugbremsanlage
Die Einlassventile
In der beschriebenen und dargestellten Ausführungsform der Erfindung sind die Plungerventile
Die Fahrzeugbremsanlage
Die erfindungsgemäße Fahrzeugbremsanlage
In
An den Hauptbremszylinder
Die Fahrzeugbremsanlage
Wie erläutert weist die Fahrzeugbremsanlage
An den Zylinder
An den Hauptbremszylinder
Der Drucksensor
In
Mit Ausnahme des mechanischen anstatt des hydraulischen Muskelkraft-Sollwertgebers
Bei der Fahrzeugbremsanlage
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED 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 was 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 PatentliteraturPatent literature cited
- DE 102014220440 A1 [0003]DE 102014220440 A1 [0003]
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019210611.0A DE102019210611A1 (en) | 2019-07-18 | 2019-07-18 | Electro-hydraulic external vehicle brake system, especially for an autonomously driving land vehicle |
PCT/EP2020/064970 WO2021008767A1 (en) | 2019-07-18 | 2020-05-29 | Electro-hydraulic externally-powered vehicle brake system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019210611.0A DE102019210611A1 (en) | 2019-07-18 | 2019-07-18 | Electro-hydraulic external vehicle brake system, especially for an autonomously driving land vehicle |
Publications (1)
Publication Number | Publication Date |
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DE102019210611A1 true DE102019210611A1 (en) | 2021-01-21 |
Family
ID=71096662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102019210611.0A Pending DE102019210611A1 (en) | 2019-07-18 | 2019-07-18 | Electro-hydraulic external vehicle brake system, especially for an autonomously driving land vehicle |
Country Status (2)
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DE (1) | DE102019210611A1 (en) |
WO (1) | WO2021008767A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014220440A1 (en) | 2014-01-15 | 2015-07-16 | Continental Teves Ag & Co. Ohg | Brake control device and brake system for vehicles |
DE102017222435A1 (en) * | 2017-01-11 | 2018-07-12 | Continental Teves Ag & Co. Ohg | Brake system for a motor vehicle and method for its operation |
KR102353022B1 (en) * | 2017-05-17 | 2022-01-20 | 주식회사 만도 | Electric brake system |
KR102382574B1 (en) * | 2017-05-17 | 2022-04-05 | 주식회사 만도 | Electric brake system |
DE102017211953A1 (en) * | 2017-07-12 | 2019-01-17 | Continental Teves Ag & Co. Ohg | braking system |
DE102017216617A1 (en) * | 2017-09-20 | 2019-03-21 | Continental Teves Ag & Co. Ohg | Brake system for a motor vehicle and method for its operation |
-
2019
- 2019-07-18 DE DE102019210611.0A patent/DE102019210611A1/en active Pending
-
2020
- 2020-05-29 WO PCT/EP2020/064970 patent/WO2021008767A1/en active Application Filing
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WO2021008767A1 (en) | 2021-01-21 |
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