DE2751143A1 - PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES - Google Patents

PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES

Info

Publication number
DE2751143A1
DE2751143A1 DE19772751143 DE2751143A DE2751143A1 DE 2751143 A1 DE2751143 A1 DE 2751143A1 DE 19772751143 DE19772751143 DE 19772751143 DE 2751143 A DE2751143 A DE 2751143A DE 2751143 A1 DE2751143 A1 DE 2751143A1
Authority
DE
Germany
Prior art keywords
hydraulic
valve
pneumatic
pressure
modulator
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.)
Ceased
Application number
DE19772751143
Other languages
German (de)
Inventor
Werner Stumpe
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
Priority claimed from DE19772726640 external-priority patent/DE2726640A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19772751143 priority Critical patent/DE2751143A1/en
Priority to GB1860978A priority patent/GB1602246A/en
Priority to IT29791/78A priority patent/IT1100237B/en
Priority to FR7832399A priority patent/FR2409176A2/en
Priority to JP14053478A priority patent/JPS5479369A/en
Publication of DE2751143A1 publication Critical patent/DE2751143A1/en
Ceased legal-status Critical Current

Links

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
    • B60T13/58—Combined or convertible systems
    • B60T13/581—Combined or convertible systems both hydraulic and pneumatic
    • 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
    • B60T13/24—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 gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
    • B60T13/44—Compressed-air systems indirect, i.e. compressed air booster units indirect systems with two-chamber booster units
    • 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
    • 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
    • B60T8/42—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 having expanding chambers for controlling pressure, i.e. closed systems
    • B60T8/4208—Debooster systems
    • B60T8/4225—Debooster systems having a fluid actuated expansion unit
    • B60T8/4241—Debooster systems having a fluid actuated expansion unit pneumatically
    • 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
    • B60T8/46—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 the pressure being reduced by exhausting fluid

Description

Stand der Technik ·State of the art ·

Die Erfindung geht aus von einer Bremsvorrichtung nach dem Hauptpatent ... (Patentanmeldung P 27 26 640.6).The invention is based on a braking device according to the main patent ... (patent application P 27 26 640.6).

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Bremsvorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß bei Radbremszylindern mit Manschetten-Dichtungen die in den Leitungen vor den Bremszylindern befindliche Flüssigkeit dauernd unter Überdruck gehalten wird, um kleine Leerwege, schnelle Bremswirkung und ein erhöhtes Andrücken der Dichtlippen zu erreichen. Dadurch wird das Eindringen von Luft in das System verhindert. Desweiteren ist es von Vorteil, daß bei einer vorgeschlagenen Bauart ein Serien-Hauptzylinder mit einem üblichen Bodenventil verwendbar ist.The braking device according to the invention with the characterizing features of the main claim has the advantage that in the case of wheel brake cylinders with sleeve seals the in the fluid in the lines in front of the brake cylinders is kept under overpressure at all times in order to avoid small idle travel, to achieve a rapid braking effect and increased pressure on the sealing lips. This prevents air from entering prevented in the system. Furthermore, it is advantageous that a series master cylinder in a proposed design can be used with a conventional bottom valve.

Zeichnungdrawing

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen: Fig. 1 eine erste Bauart und Fig. 2 eine zweite Bauart mit Serien-Hauptzylinder.Several exemplary embodiments of the invention are shown in the drawing and are described in more detail in the following description explained. 1 shows a first type and FIG. 2 shows a second type with a series master cylinder.

Beschreibung der ErfindungDescription of the invention

Ein pneumatisches Zweikreis-Bremsventil 120 versorgt einen Modulator 121 mit Druckluft. Dieser hat ein 3/2-Wege-Magnetventil 123 für die Druckluft und einen hydraulischen Nachfüllbehälter 125 sowie zwei 2/2-Wege-Magnetventile für eine 2-Kanal-Steuerung des Druckes in zwei Radbremszylindern 113 undA pneumatic two-circuit brake valve 120 supplies a modulator 121 with compressed air. This has a 3/2-way solenoid valve 123 for the compressed air and a hydraulic refill container 125 as well as two 2/2-way solenoid valves for a 2-channel control the pressure in two wheel brake cylinders 113 and

909820/0428909820/0428

2 7 5J ^ 42 7 5J ^ 4

Eine Steuerleitung 106 führt zu dem 3/2-Wege-Magnetventil 123 j das die Druckluftversorgung einer Druckkammer 130 im Modulator 121 überwacht. Die Druckkammer 130 wird von einem Modulatorkolben 131 begrenzt, der auf seiner anderen Seite eine Außenluftkammer 132 abschließt. In dieser Kammer 132 befindet sich eine Rückstellfeder 133 für den Kolben 131 und - an einer Endwand 131J - ein Endschalter 135.A control line 106 leads to the 3/2-way solenoid valve 123 j which monitors the compressed air supply to a pressure chamber 130 in the modulator 121. The pressure chamber 130 is delimited by a modulator piston 131, which closes off an outside air chamber 132 on its other side. In this chamber 132 there is a return spring 133 for the piston 131 and - on an end wall 13 1 J - a limit switch 135.

Eine mit dem Modulatorkolben 131 verbundene Kolbenstange 136 ist in ihrem vorderen Teil 137 als Hydraulikkolben ausgebildet, der eine Hydraulikkammer 138 begrenzt. Diese Kammer 138 ist einerseits an den Nachfüllbehälter 125 und andererseits an zwei parallel nebeneinander liegende hydraulische 2/2-Wege-Magnetventile 139 und l40 angeschlossen. Die Hydraulikkammer 138 hat ein kleines Totvolumen in der bremsbetätigenden Endlage des Kolbens 137· Außerdem sind die Leitungen von dort zu den Ventilen 139 und I1JO sehr kurz. Es ist auch möglich, .zur Druckmodulation nur eines der beiden Magnetventile 139 oder I1JO zu verwenden. Vor dem bzw. den Magnetventil(en) ist ein Restdruckventil 100 vorgesehen, das mit den beidenA piston rod 136 connected to the modulator piston 131 is designed in its front part 137 as a hydraulic piston which delimits a hydraulic chamber 138. This chamber 138 is connected, on the one hand, to the refill container 125 and, on the other hand, to two hydraulic 2/2-way solenoid valves 139 and 140 lying next to one another in parallel. The hydraulic chamber 138 has a small dead volume in the brake-actuating end position of the piston 137 · In addition, the lines from there to the valves 139 and I 1 JO are very short. It is also possible to use only one of the two solenoid valves 139 or I 1 JO for pressure modulation. A residual pressure valve 100 is provided in front of the solenoid valve (s), which is connected to the two

-Magnet ventilen 139 und 140 in einem gemeinsamen Gehäuse 105 untergebracht ist. Das Gehäuse IO5 ist an das des Modulators 121 angesetzt.Solenoid valves 139 and 140 are housed in a common housing 105. The housing IO5 is connected to that of the modulator 121 set.

Der Hydraulikkolben 137 ist axial aufgebohrt und nimmt eine Feder l4l und einen Stößel 142 auf, der an seinem anderen Ende einen Schließkörper 143 für ein Ventil 143/144 trägt, dessen Ventilsitz 144 an der Ausmündung einer Verbindungsleitung zu dem Nachfüllbehälter 125 angeordnet ist. Die Magnete der Magnetventile 123, 139 und l40 sind mit Sensoren 103 und 104 an den Pahrzeugrädern über ein elektronisches Steuergerät elektrisch verbunden.The hydraulic piston 137 is bored out axially and receives a spring l4l and a plunger 142 on its other End carries a closing body 143 for a valve 143/144, the valve seat 144 of which is arranged at the opening of a connecting line to the refill container 125. The magnets The solenoid valves 123, 139 and 140 are connected to sensors 103 and 104 on the vehicle wheels via an electronic control unit electrically connected.

909820/0428909820/0428

^ 4 2 2?^ 4 2 2?

WirkungsweiseMode of action

Bei gelöster Bremse hält das Restdruckventil 100 die Bremsflüssigkeit in den Bremszylindern 113, Il4 unter einem geringen überdruck; dadurch werden die Dichtlippen in den Brems zylindern 113, 114 erhöht angedrückt und Luft kann nicht ins System gelangen.When the brake is released, the residual pressure valve 100 holds the brake fluid in the brake cylinders 113, II4 under a slight overpressure; thereby the sealing lips are in the Brake cylinders 113, 114 increased pressed and air can not get into the system.

Beim Bremsen läßt das 3/2-Wege--Magnetventil 123 die Druckluft vom Bremsventil 120 in die Druckkammer 130 gelangen. Der Modulatorkolben 131 wird gegen die Kraft der Feder 133 bewegt, das Ventil 143/11I1I zum Nachfüllbehälter 125 schließt, und es gelangt hydraulisches Druckmittel über das Restdruckventil 100 und über die beiden 2/2-Wege-Magnetventile 139 und I1IO zu den Bremszylindern 113 und H1I. Wegen des Vordrucks durch das Restdruckventil 100 werden in den Bremszylindern 113 und H1I kleine Leerwege und baldige Bremswirkung erreicht.When braking, the 3/2-way solenoid valve 123 allows the compressed air from the brake valve 120 to reach the pressure chamber 130. The modulator piston 131 is moved against the force of the spring 133, the valve 143/1 1 I 1 I to the refill container 125 closes, and hydraulic pressure medium reaches the residual pressure valve 100 and the two 2/2-way solenoid valves 139 and I 1 IO to the brake cylinders 113 and H 1 I. Because of the pre-pressure through the residual pressure valve 100, small idle travels and an early braking effect are achieved in the brake cylinders 113 and H 1 I.

Wenn die Radbremsen blockieren, werden die drei Magnetventile 123, 139, l40 im Sinne eines Blockierschutzes mit Hilfe der elektronischen Schalteinrichtung umgeschaltet. Durch die 2-Kanal-Steuerung kann jeder Bremszylinder 113 bzw. H1I getrennt geregelt werden. Auf diese Weise wird für die individuelle Regelung der Räder einer Achse nur ein Modulator 121 benötigt.When the wheel brakes lock, the three solenoid valves 123, 139, 140 are switched over in the sense of anti-lock protection with the aid of the electronic switching device. With the 2-channel control, each brake cylinder 113 or H 1 I can be regulated separately. In this way, only one modulator 121 is required for the individual regulation of the wheels of an axle.

Die Pig. 2 zeigt eine Bauart eines Modulators 151, der mit einem Serien-Hauptzylinder 152 zusammengebaut ist. Der Serien-Hauptzylinder 152 hat einen Kolben 153 mit einer primär und einer Sekundär-Dichtung 154 und 155. Ih einer Kalotte I56 nimmt er das Ende einer Kolbenstange 157 eines Modulatorkolbens 161 auf.The Pig. 2 shows one type of modulator 151 assembled with a series master cylinder 152. The series master cylinder 152 has a piston 153 with a primary and a secondary seal 154 and 155. Ih takes a spherical cap I56 he the end of a piston rod 157 of a modulator piston 161.

Bei dieser Bauart befindet sich am Boden I58 des Hauptzylinders 152 ein übliches Bodenventil I60, das als Restdruckventil arbeitet. Eine Bremsleitung 159 führt zu zwei hydraulischen 2/2Wege-Magnetventilen 162 und I63, die nahe bei einem pneumatischen 3/2-Wege-Magnetventil 164 angeordnet sind, das dem Ventil 123 nach der Fig. 1 entspricht. Auf diese Weise wird die elektrische Ansteuerung vereinfacht.In this design there is I58 of the main cylinder on the bottom 152 a common bottom valve I60, which is used as a residual pressure valve is working. A brake line 159 leads to two hydraulic 2/2-way solenoid valves 162 and I63, which are close to one pneumatic 3/2-way solenoid valve 164 are arranged, the corresponds to the valve 123 of FIG. In this way, the electrical control is simplified.

909820/0428 Ί - 5 -909820/0428 Ί - 5 -

10 -J$-10 -J $ - 4 -?4 -?

Von den beiden 2/2-Wege-Magnetventilen 162 und 163 nehmen zu den Radbremszylindern führende Leitungen ihren Ausgang. Die Wirkungsweise dieser Bauart ist der nach der Fig. 1 gleich.Of the two 2/2-way solenoid valves 162 and 163 increase the lines leading to the wheel brake cylinders have their output. The mode of operation of this type of construction is the same as that of FIG.

909820/0428909820/0428

Claims (1)

2751U32751U3 R. ϊ..1 R. ϊ..1 22.9-1977 He/Do22.9-1977 He / Thu Robert Bosch GmbH, StuttgartRobert Bosch GmbH, Stuttgart AnsprücheExpectations 1.JPneumatisch-hydraulische Bremsvorrichtung für Fahrzeuge mit mindestens einem pneumatisch-hydraulischen Druckmodulator zum Versorgen einer Gruppe von hydraulischen Radzylindern, sowie mit einem fußbetätigten Bremsventil zum Einsteuern von Betätigungsluft in den Druckmodulator und mit einer Blockierschutzeinrichtung, wobei für die Blokkierschutz-Druckmodulation auf der Luftseite mindestens ein Mehrwege-Luftventil und auf der Hydraulikseite mindestens ein Hydraulikventil verwendet sind, dadurch gekennzeichnet, daß dem pneumatisch-hydraulischen Druckmodulator (121, 151) nachgeordnet vor dem der Druckmodulation dienenden hydraulischen ventil (139, I1JO; 162, I63) ein Restdruckventil (100, I60) für den Druck auf der Radzylinderseite vorgesehen ist.1.JPneumatic-hydraulic braking device for vehicles with at least one pneumatic-hydraulic pressure modulator to supply a group of hydraulic wheel cylinders, as well as with a foot-operated brake valve for controlling actuation air into the pressure modulator and with an anti-lock device, whereby for anti-lock-pressure modulation on the air side at least a multi-way air valve and at least one hydraulic valve on the hydraulic side are used, characterized in that a residual pressure valve (139, I 1 JO; 162, I63) is arranged downstream of the pneumatic-hydraulic pressure modulator (121, 151) upstream of the hydraulic valve (139, I 1 JO; 162, I63) used for pressure modulation. 100, I60) is intended for printing on the wheel cylinder side. 2. Bremsvorrichtung nach Anspruch 1 mit zwei 2/2-Wege-Magnetventilen als Hydraulikventile, dadurch gekennzeichnet, daß das Restdruckventil (100, I60) vor einer Leitungsverzweigung zu den beiden hydr.Maenetventilen (139, 1^0; 162, 163) angeordnet ist. 909820/0428 2. Brake device according to claim 1 with two 2/2-way solenoid valves, as hydraulic valves, characterized in that the residual pressure valve (100, I60) before a manifold to the two hydr.Maenetventilen (139, 1 ^ 0; 162, 163) arranged is. 90 9820/0428 - 2 ORIGINAL INSPECTED - 2 ORIGINAL INSPECTED 2751U32751U3 J>. Bremsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Restdruckventil (100) gemeinsam mit den hydraulischen Mapietventiler (130, 1^0) in einem Gehäuse (105) untergebracht ist, das an das Gehäuse des pneumatisch-hydraulischen Druckmodulators (121) angesetzt ist. J>. Braking device according to claim 2, characterized in that the residual pressure valve (100) is accommodated together with the hydraulic Mapietventiler (130, 1 ^ 0) in a housing (105) which is attached to the housing of the pneumatic-hydraulic pressure modulator (121). ^. Bremsvorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Restdruckventil (l60) in einen hydraulischen Hauptzylinder (152) des pneumatischhydraulischen Druckmodulators (l6l) eingesetzt ist. ^. Braking device according to one of claims 1 or 2, characterized in that the residual pressure valve (l60) is inserted into a hydraulic master cylinder (152) of the pneumatic-hydraulic pressure modulator (l6l). 5. Bremsvorrichtung nach einem der Ansprüche 1 bis ^l, dadurch gekennzeichnet, daß das Restdruckventil (100, l60) ein übliches Bodenventil ist.5. Braking device according to one of claims 1 to ^ l, characterized characterized in that the residual pressure valve (100, 160) is a conventional bottom valve. 909820/0428909820/0428
DE19772751143 1977-06-14 1977-11-16 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES Ceased DE2751143A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19772751143 DE2751143A1 (en) 1977-06-14 1977-11-16 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES
GB1860978A GB1602246A (en) 1977-06-14 1978-05-10 Pressure fluid operated braking systems for vehicles
IT29791/78A IT1100237B (en) 1977-11-16 1978-11-15 PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES
FR7832399A FR2409176A2 (en) 1977-06-14 1978-11-16 PNEUMATIC-HYDRAULIC BRAKING DEVICE FOR VEHICLES
JP14053478A JPS5479369A (en) 1977-11-16 1978-11-16 Hydropneumatic brake for vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772726640 DE2726640A1 (en) 1977-06-14 1977-06-14 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES
DE19772751143 DE2751143A1 (en) 1977-06-14 1977-11-16 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES

Publications (1)

Publication Number Publication Date
DE2751143A1 true DE2751143A1 (en) 1979-05-17

Family

ID=25772148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772751143 Ceased DE2751143A1 (en) 1977-06-14 1977-11-16 PNEUMATIC-HYDRAULIC BRAKE DEVICE FOR VEHICLES

Country Status (3)

Country Link
DE (1) DE2751143A1 (en)
FR (1) FR2409176A2 (en)
GB (1) GB1602246A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322786A1 (en) * 1983-06-24 1985-01-10 Volkswagenwerk Ag, 3180 Wolfsburg Hydraulic and/or pneumatic braking system for vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453299A1 (en) * 1979-04-03 1980-10-31 Wabco Fahrzeugbremsen Gmbh Multiplication of pneumatic pressure for hydraulic circuit - uses pre-constrained helicoidal spring to support rigid plunger piston
FR2652619B1 (en) * 1989-10-04 1994-05-27 Sime Ind HYDRAULIC PRESSURE GENERATOR AND BRAKING DEVICE PROVIDED WITH SUCH A GENERATOR.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2123647A1 (en) * 1970-05-12 1971-12-23 Girling Ltd., Birmingham, (Großbritannien) Pressure medium-operated brake systems, in particular for motor vehicles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2212712A1 (en) * 1972-03-16 1973-09-27 Bosch Gmbh Robert HYDRAULIC DOUBLE CIRCUIT BRAKE SYSTEM
DE2249956C2 (en) * 1972-10-12 1984-06-20 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic storage unit for two separate supply circuits
DE2316786A1 (en) * 1973-04-04 1974-10-17 Daimler Benz Ag PRESSURE REGULATING DEVICE FOR VEHICLES WITH AN ANTI-LOCKING DEVICE
GB1468014A (en) * 1973-10-25 1977-03-23 Dewandre Co Ltd C Hydraulic braking systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2123647A1 (en) * 1970-05-12 1971-12-23 Girling Ltd., Birmingham, (Großbritannien) Pressure medium-operated brake systems, in particular for motor vehicles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Publ "ATE-Bremsen-Service, 1969, S. 01.1-01.3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322786A1 (en) * 1983-06-24 1985-01-10 Volkswagenwerk Ag, 3180 Wolfsburg Hydraulic and/or pneumatic braking system for vehicle

Also Published As

Publication number Publication date
FR2409176A2 (en) 1979-06-15
FR2409176B2 (en) 1983-12-02
GB1602246A (en) 1981-11-11

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