DE3419717A1 - ANTI-BLOCKING CONTROL SYSTEM - Google Patents

ANTI-BLOCKING CONTROL SYSTEM

Info

Publication number
DE3419717A1
DE3419717A1 DE19843419717 DE3419717A DE3419717A1 DE 3419717 A1 DE3419717 A1 DE 3419717A1 DE 19843419717 DE19843419717 DE 19843419717 DE 3419717 A DE3419717 A DE 3419717A DE 3419717 A1 DE3419717 A1 DE 3419717A1
Authority
DE
Germany
Prior art keywords
brake
control system
lock control
pressure
lock
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.)
Granted
Application number
DE19843419717
Other languages
German (de)
Other versions
DE3419717C2 (en
Inventor
Des Erfinders Auf Nennung Verzicht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19843419717 priority Critical patent/DE3419717A1/en
Priority to GB08510658A priority patent/GB2159222B/en
Priority to FR8507854A priority patent/FR2564794B1/en
Publication of DE3419717A1 publication Critical patent/DE3419717A1/en
Application granted granted Critical
Publication of DE3419717C2 publication Critical patent/DE3419717C2/de
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32Arrangements 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
    • B60T8/34Arrangements 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
    • B60T8/343Systems characterised by their lay-out
    • B60T8/344Hydraulic systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T8/00Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32Arrangements 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
    • B60T8/88Arrangements 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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
    • B60T8/92Arrangements 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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action
    • B60T8/96Arrangements 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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on speed responsive control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Description

R. 19 397
25.05.1984 PT/Ka-kn
R. 19 397
May 25, 1984 PT / Ka-kn

ROBERT BOSCH GmbH, 7000 Stuttgart 1ROBERT BOSCH GmbH, 7000 Stuttgart 1

Antib!ockierrege!systemAnti! Ocking rain! System

Die Erfindung betrifft ein Antiblockierregelsystem mit den Merkmalen desOberbegriffs des Anspruchs 1.The invention relates to an anti-lock control system with the Features of the preamble of claim 1.

Ein solches Antiblockierregelsystem ist bekannt, so z.B. aus der DE-OS 31 26 102.Such an anti-lock control system is known, e.g. DE-OS 31 26 102.

Die derzeitig bekannten Antiblockierregelsysteme schalten im Störungsfall die ABS-Funktion ab. Dann ist die normale Brem- η se vorwirksam. Wegen der notwendigen Fahrstabilität im vorgenannten Fehlerfall verwenden viele Fahrzeuge, insbesondere frontgetriebene Fahrzeuge, für die Hinterachse einen Bremsdruckminderer. Da bei abgeschaltetem ABS die Vorderachse vor der Hinterachse instabil wird, steigert der Fahrer meistens beim Blockieren der Vorderachse den Bremsdruck nicht weiter, so daß die blockierfreie Hinterachse dann die Fahrstabilität sichert. Eine entsprechende Auslegung der Bremsen ist in vielen Ländern vom Gesetzgeber vorgeschrieben.The currently known anti-lock control systems switch in Deactivate the ABS function in the event of a malfunction. Then the normal brake η se pre-effective. Because of the necessary driving stability in the aforementioned In the event of a fault, many vehicles, especially front-wheel drive vehicles, use a brake pressure reducer for the rear axle. Since the front axle in front of the rear axle becomes unstable when the ABS is switched off, the driver usually increases the speed When the front axle is locked, the brake pressure is no longer applied, so that the locking-free rear axle then improves driving stability secures. A corresponding design of the brakes is required by law in many countries.

Die erfindungsgemäße Verwendung eines nicht gebremsten Hinterrads, z.B. durch ein stromlos gesperrtes ABS-Ventil in einem Hinterachskreis, vorzugsweise bei diagonaler Bremskreisaufteilung, verhindert im Störungsfall des Antiblockierreglers,The inventive use of a non-braked rear wheel, E.g. through a currentless blocked ABS valve in a rear axle circuit, preferably with diagonal brake circuit distribution, prevents in the event of a malfunction of the anti-lock controller,

EPO our ϊ ^PO COPYEPO our ϊ ^ PO COPY

': - Zr R. 19 397': - Zr R. 19 397

daß das Hinterrad Bremsdruck erhält. Damit ist eine Blockierung des Rads ausgeschlossen. Bei diagonaler Bremskreisaufteilung, welche besonders vorteilhaft geeignet ist zur Ausführung des Lösungsgedankens, bremst also im Störungsfall ein Hinterrad nicht, was eine geringfügige Reduzierung der Bremswirkung zugunsten der Fahrstabilität zur Folge hat. In Anbetracht der hohen Zuverlässigkeit von ABS-Systemen ist diese Einschränkung statthaft.that the rear wheel receives braking pressure. This prevents the wheel from locking. With diagonal brake circuit distribution, which is particularly advantageously suitable for implementing the solution idea, so brakes a rear wheel in the event of a malfunction not, which results in a slight reduction in the braking effect in favor of driving stability. Considering the high reliability of ABS systems is this limitation permissible.

Es sind seit längerem auch Fahrzeuge mit einer Bremskreis- aufteilung in Produktion bei denen je ein Bremskreis auf zwei Vorderräder und ein Hinterrad wirkt und welche im Fehlerfan dasselbe Bremsergebnis bringen. For a long time, there have also been vehicles with a brake circuit distribution in production in which one brake circuit acts on two front wheels and one rear wheel and which bring the same braking result in the error fan.

Entsprechend dem Lösungsvorschlag der Erfindung wird die Magnetventil anordnung über die Auswerteschaltung eingeschaltet, ist also während der gesamten Fahrt oder auch nur während des Bremsvorgangs erregt und gibt somit dem Fahrzeug die volle Bremswirkung. Durch diese Venti1 schaltung kann auf den Druckminderer für die Hinterachse verzichtet werden; insbesondere bei Fahrzeugen mit diagonaler Bremskreisaufteilung und zwei Druckminderern stellen diese einen nennenswerten Aufwand dar.According to the proposed solution of the invention, the solenoid valve arrangement is switched on via the evaluation circuit, is therefore excited during the entire journey or only during the braking process and thus gives the vehicle the full braking effect. This valve circuit can open the pressure reducer for the rear axle can be dispensed with; especially for vehicles with diagonal brake circuit division and two pressure reducers, these represent a considerable effort.

Anhand eines Ausführungsbeispiel der Zeichnung wird die Erfindung näher erläutert. Es zeigenBased on an embodiment of the drawing Invention explained in more detail. Show it

Fig. 1 eine Ausführungsform,Fig. 1 shows an embodiment,

Fig. 2 eine abgewandelte Ventilanordnung,2 shows a modified valve arrangement,

Fig. 1 zeigt zwei Räder einer Hinterachse, an deren Bremse zwei Bremskreise I und II angeschlossen sind. In die Bremsleitungen zu den Rädern 1 und 2 sind Ventil anordnungen 3 und eingeschaltet, welche als Dreistellungsventile ausgebildet sind.Fig. 1 shows two wheels of a rear axle, to the brake of which two brake circuits I and II are connected. In the brake lines to the wheels 1 and 2 are valve assemblies 3 and turned on, which are designed as three-position valves are.

C0PYC0PY SS.

:-$·-■· R. 19 397: - $ - ■ · R. 19 397

Im Bremskreis II ist eine übliche Ventilanordnung eingeschaltet, die in stromlosem Zustand durchlässig ist. Im Gegensatz dazu ist die Ventilanordnung 3 im Bremskreis I in stromlosem Zustand geschlossen. Der Radbremszylinderanschluß ist mit einem drucklosen Rücklauf R verbunden. .Die zweite Schaustellung der Ventileinrichtung 3 dient der Druckkonstanthaltung in der Radbremse. In der dritten Schaltstellung ist ein freier Durchgang vom Hauptbremszylinder 5 zum Radbremszylinder bei geschlossenem Rücklauf gegeben. Diese Ventilanordnung 3 wird von einer Auswerteschaltung 4 eingeschaltet und ist während der normalen Fahrt erregt. Zur Einsparung des Stromverbrauchs kann die Einschaltung des Ventils in die 3. Schaltstellung ohne ABS-Funktion auch über den Bremslichtschalter BS erfolgen. Bei ABS-Betrieb wechseln die Schaltstellungen 1-3 zwecks Druckabbau, Druckaufbau und Konstanthaltung. Bei ABS-Abschaltung gehen die Ventilanordnungen 3 und 4 in die Schaltstellung 1, in der das Rad 2 gebremst werden kann, jedoch nicht das Rad 1.In the brake circuit II, a conventional valve arrangement is switched on, which is permeable in the de-energized state. In contrast for this purpose, the valve arrangement 3 in the brake circuit I is closed in the de-energized state. The wheel brake cylinder connection is with a pressureless return R connected. The second display of the valve device 3 is used to keep the pressure constant in the wheel brake. In the third switch position is a Free passage from the master cylinder 5 to the wheel brake cylinder given when the return is closed. This valve arrangement 3 is switched on by an evaluation circuit 4 and is aroused during normal driving. To save power consumption, the valve can be switched on in the 3. Switch position without ABS function also via the brake light switch BS take place. During ABS operation, the switch positions 1-3 change for the purpose of pressure reduction, pressure build-up and maintenance. When the ABS is switched off, the valve assemblies 3 and 4 go into switching position 1, in which the wheel 2 is braked but not wheel 1.

Fig. 2 zeigt anstelle des Dreistellungsventils 3 eine Ventilkonfiguration, welche aus zwei Zweistellungsventilen 5 und 7 besteht, welche ebenfalls dem Stand der Technik entsprechen. Bei dieser Ventilkonfiguration wird das Ventil 7 von der Auswerteschaltung 4 im Normalfall eingeschaltet. (Stellung 2). Im Störungsfall ist die Verbindung vom Hauptbremszylinder 5 zum Radbremszylinder des Rads 1 gesperrt (Stellung 1). Der Radzylinder ist dann mit dem Rücklauf R verbunden. Die ABS-Funktion wird durch die kombinierte Ansteuerung beider Ventile 6 und 7 erreicht:FIG. 2 shows a valve configuration instead of the three-position valve 3, which consists of two two-position valves 5 and 7 exists, which also correspond to the state of the art. With this valve configuration, the valve 7 is controlled by the evaluation circuit 4 normally switched on. (Position 2). In the event of a malfunction, the connection from the master brake cylinder 5 locked to the wheel brake cylinder of wheel 1 (position 1). The wheel cylinder is then connected to the return line R. The ABS function is achieved by the combined control of both valves 6 and 7:

EPO COPYEPO COPY

- PS- R. 19- PS- R. 19

3Α197Π3Α197Π

Ventil-Nr. Ventils tellungValve no. Valve position

Druckaufbau 6 1Pressure build-up 6 1

7 27 2

Konstanthaltung 6 2Keeping constant 6 2

7 27 2

Druckabbau 6 1 oderDepressurization 6 1 or

7 17 1

Die für die Erläuterung der Erfindung unnötigen Vorderräder, ihre Sensoren und Bremsdrucksteuereinrichtungen sind in der Zeichnung der Einfachheit halber nicht dargestellt.The front wheels, their sensors and brake pressure control devices, which are unnecessary for explaining the invention, are shown in FIG The drawing is not shown for the sake of simplicity.

EPO CGPYEPO CGPY

Claims (6)

R. 19 397 25.05.1984 PT/Ka-kn ROBERT BOSCH GmbH, 7000 Stuttgart 1 Antiblockierrege!system AnsprücheR. 19 397 05/25/1984 PT / Ka-kn ROBERT BOSCH GmbH, 7000 Stuttgart 1 Anti-lock rain! System claims 1.) Antiblockierregelsystem für ein Kraftfahrzeug, enthaltend Sensoren zur Erfassung des Radbewegungsverhaltens, eine Auswerteschaltung zur Auswertung der Sensorsignale und zur Erzeugung von Bremsdrucksteuersignalen, den einzelnen Rädern zugeordnete Ventilanordnungen, denen diese Bremsdrucksteuersignale zur Variation des Bremsdrucks zugeführt werden, und einer Überwachungseinrichtung, die das Antiblockierregelsystem im Störungsfall abschaltet, dadurch gekennzeichnet, daß die einem der Hinterräder zugeordnete Ventilanordnung und/oder die Auswerteschaltung derart ausgelegt sind, daß bei Abschaltung des Antiblockierregelsystems dieses Hinterrad nicht mit Bremsdruck beaufschlagbar ist.1.) Anti-lock control system for a motor vehicle containing Sensors for recording the wheel movement behavior, an evaluation circuit for evaluating the sensor signals and for generating brake pressure control signals for the individual wheels associated valve arrangements to which these brake pressure control signals are fed to vary the brake pressure, and a monitoring device that controls the anti-lock braking system switches off in the event of a fault, characterized in that the valve arrangement assigned to one of the rear wheels and / or the evaluation circuit are designed such that when the anti-lock control system is switched off, braking pressure cannot be applied to this rear wheel. 2. Antiblockierregelsystem nach Anspruch 1, dadurch gekennzeichnet, daß die Ventilanordnung im stromlosen Zustand die Verbindung zwischen Bremsdruckerzeuger und der Bremse des einen Hinterrads sperrt.2. Anti-lock control system according to claim 1, characterized in that that the valve assembly in the de-energized state the connection between the brake pressure generator and the brake of the locks a rear wheel. 3. Antiblockierregelsystem nach Anspruch 2, dadurch gekennzeichnet, daß die Ventilanrodnung im stromlosen Zustand die Bremse mit einem drucklosen Rücklauf verbindet.3. Anti-lock control system according to claim 2, characterized in that that the valve arrangement connects the brake with an unpressurized return when de-energized. EPO COPY f; EPO COPY @ Ψ f; - 2 - R. 19 397- 2 - R. 19 397 4. Antiblockierregelsystem nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Auswerteschaltung die Ventilanordnung im Normalfall in eine Stellung steuert, in der die Bremsdruckquelle mit der Radbremse verbunden ist.4. Anti-lock control system according to claim 2 or 3, characterized characterized in that the evaluation circuit controls the valve arrangement normally controls in a position in which the brake pressure source is connected to the wheel brake. 5. Antiblockierregelsystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Ventilanordnung in drei Stellungen (Druckaufbau, Halten, Druckabbau) steuerbar ist.5. anti-lock control system according to one of claims 1 to 4, characterized in that the valve assembly is in three positions (Pressure build-up, hold, pressure reduction) is controllable. 6. Antiblockierregelsystem nach einem der Ansprüche 1 bis 5, gekennzeichnet durch seine Anwendung bei diagonaler Bremskreisauftei1ung. 6. anti-lock control system according to one of claims 1 to 5, characterized by its use in diagonal brake circuit division. EPOCOPYEPOCOPY
DE19843419717 1984-05-26 1984-05-26 ANTI-BLOCKING CONTROL SYSTEM Granted DE3419717A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19843419717 DE3419717A1 (en) 1984-05-26 1984-05-26 ANTI-BLOCKING CONTROL SYSTEM
GB08510658A GB2159222B (en) 1984-05-26 1985-04-26 Anti wheel-locking brake control system
FR8507854A FR2564794B1 (en) 1984-05-26 1985-05-24 BRAKE PRESSURE ADJUSTMENT SYSTEM FOR PREVENTING WHEEL LOCKING WHEN BRAKING A MOTOR VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843419717 DE3419717A1 (en) 1984-05-26 1984-05-26 ANTI-BLOCKING CONTROL SYSTEM

Publications (2)

Publication Number Publication Date
DE3419717A1 true DE3419717A1 (en) 1985-11-28
DE3419717C2 DE3419717C2 (en) 1993-02-11

Family

ID=6236938

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843419717 Granted DE3419717A1 (en) 1984-05-26 1984-05-26 ANTI-BLOCKING CONTROL SYSTEM

Country Status (3)

Country Link
DE (1) DE3419717A1 (en)
FR (1) FR2564794B1 (en)
GB (1) GB2159222B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240493A1 (en) * 1992-12-02 1994-06-09 Teves Gmbh Alfred Brake system with ABS and EBV
DE4330121A1 (en) * 1993-09-06 1995-03-09 Bayerische Motoren Werke Ag Antilock control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813256A1 (en) * 1967-12-08 1969-10-16 O G Kullberg Braking force control device
DE2918772A1 (en) * 1979-05-10 1980-11-20 Bosch Gmbh Robert MULTI-CIRCLE PRESSURE BRAKE SYSTEM
DE3126102A1 (en) * 1981-07-02 1983-01-20 Robert Bosch Gmbh, 7000 Stuttgart ANTI-BLOCKING CONTROL SYSTEM
DE3150218A1 (en) * 1981-12-18 1983-07-21 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC MULTI-CIRCUIT BRAKE SYSTEM

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247496A1 (en) * 1982-12-22 1984-06-28 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC TWO-CIRCUIT BRAKE SYSTEM

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813256A1 (en) * 1967-12-08 1969-10-16 O G Kullberg Braking force control device
DE2918772A1 (en) * 1979-05-10 1980-11-20 Bosch Gmbh Robert MULTI-CIRCLE PRESSURE BRAKE SYSTEM
DE3126102A1 (en) * 1981-07-02 1983-01-20 Robert Bosch Gmbh, 7000 Stuttgart ANTI-BLOCKING CONTROL SYSTEM
DE3150218A1 (en) * 1981-12-18 1983-07-21 Alfred Teves Gmbh, 6000 Frankfurt HYDRAULIC MULTI-CIRCUIT BRAKE SYSTEM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240493A1 (en) * 1992-12-02 1994-06-09 Teves Gmbh Alfred Brake system with ABS and EBV
US5899540A (en) * 1992-12-02 1999-05-04 Itt Automotive Europe Gmbh Brake system including anti-lock control and electronic brake force distribution
DE4330121A1 (en) * 1993-09-06 1995-03-09 Bayerische Motoren Werke Ag Antilock control system
DE4330121B4 (en) * 1993-09-06 2005-06-09 Bayerische Motoren Werke Ag Anti-lock control system

Also Published As

Publication number Publication date
GB2159222B (en) 1987-08-19
GB2159222A (en) 1985-11-27
FR2564794A1 (en) 1985-11-29
GB8510658D0 (en) 1985-06-05
DE3419717C2 (en) 1993-02-11
FR2564794B1 (en) 1989-01-20

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8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
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