EP1066183A1 - Systeme de freinage a regulation electronique muni d'un reservoir - Google Patents

Systeme de freinage a regulation electronique muni d'un reservoir

Info

Publication number
EP1066183A1
EP1066183A1 EP99913238A EP99913238A EP1066183A1 EP 1066183 A1 EP1066183 A1 EP 1066183A1 EP 99913238 A EP99913238 A EP 99913238A EP 99913238 A EP99913238 A EP 99913238A EP 1066183 A1 EP1066183 A1 EP 1066183A1
Authority
EP
European Patent Office
Prior art keywords
brake system
pump
check valve
suction side
space
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Withdrawn
Application number
EP99913238A
Other languages
German (de)
English (en)
Inventor
Dieter Dinkel
Axel Hinz
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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 Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Publication of EP1066183A1 publication Critical patent/EP1066183A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
    • 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
    • B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
    • B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
    • B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
    • B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/21—Accumulator cushioning means using springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • F15B2201/312—Sealings therefor, e.g. piston rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/41—Liquid ports
    • F15B2201/411—Liquid ports having valve means

Definitions

  • the invention relates to an electronically controlled brake system with traction control (ASR) and / or electronic stability program (ESP), with an actuation unit, wheel brakes and a control unit between the actuation unit and the wheel brakes, the control unit having at least one pump with a suction side and a pressure side and a ASR or ESP changeover valve between the suction side of the pump and the actuation unit, wherein a memory is arranged between the changeover valve and the suction side of the pump and at least one check valve is provided on the suction side of the pump.
  • ASR electronically controlled brake system with traction control
  • ESP electronic stability program
  • ABS anti-lock braking system
  • ASR slip control of the driven wheels
  • ESP electronic stability program
  • a generic brake system is known for example from German patent application DE 195 19 832 AI.
  • a pulsation damper which serves to avoid large pressure fluctuations and to smooth out pressure peaks that can arise as a result of the brake control and put a heavy load on the brake system and can cause noise, has been integrated into a memory.
  • the invention has for its object to further simplify or improve known brake systems, but in particular to reduce the required volume of the hydraulic or electronic control unit of the brake.
  • At least one of the check valves on the suction side of the pump is additionally formed on the memory.
  • the integration of the check valve in the accumulator eliminates the need to provide a mounting space for the valve elsewhere in the pump housing or at another point in the control unit, the accumulator and valve taken together practically not taking up much more space than a conventional accumulator alone.
  • the combination of these components has the further advantage that a preassembled assembly is created, which is much cheaper in final assembly than two separate assemblies.
  • the damping is only effective in the slip control of the drive wheels and in the automatic vehicle stability control, the volume requirements playing a rather subordinate role.
  • 1 is a schematic circuit diagram of an electronically controlled brake system
  • Fig. 2 shows a section through a first embodiment of a memory in which a check valve is arranged according to the invention
  • Fig. 3 shows a section through a second embodiment of the memory of a brake system according to the invention.
  • FIG. 1 shows an electronic brake system, such as is present in motor vehicles, for example, which in addition to an anti-lock braking system also has a traction control system (ASR) and / or an electronic stability program (ESP).
  • ASR traction control system
  • ESP electronic stability program
  • a control unit 28 is arranged between an actuation unit 26 and the wheel brakes 27, said control unit not comprising lines, valves, 4 -
  • a changeover valve 32 is provided between the suction side 30 of the pump 29 and the actuation unit 26.
  • Several check valves 7, 8, 35 and at least one low-pressure accumulator 34 are arranged on the suction side 30 of the pump 29 in a known manner.
  • a pulsation damper (not shown in FIG. 1) can also be provided between the changeover valve 32 and the suction side 30 of the pump 29.
  • a space 1 for brake fluid is formed in a housing 25, said space sealingly delimiting on one side by a spring-loaded, displaceable piston 2 and on the other side via a channel 9 with the one shown in FIG 1 shown pump 29 is connected.
  • the space 1 can also be connected to the wheel brakes 27 via a second channel 3.
  • the check valve 7 is provided on the accumulator 34, in particular between the space 1 and the channel 3.
  • the check valve 7 can be formed on the piston 2 with particular advantage.
  • This combination of accumulator 34 and valve 7 is preferably designed in such a way that the piston 2 has an externally circumferential groove-like recess 10, into which an annular sleeve 11 with a sealing lip 12 abutting the wall of the space 1 is inserted, which is located between the channels 3 and 9 to the wheel brakes 27 or to the pump 29 acts as a check valve 7 with a pressure maintenance function.
  • a pulsation damper is provided in the memory 34, which comprises an elastic membrane 4, a gas storage space 6, a support disk 16 for holding and clamping the membrane 4 in the piston 2 at the edge, and a bore 17 in the support disk 16.
  • the membrane 4 is provided for damping pressure pulsations between the space 1 for brake fluid and a storage space 15 of the storage 34, which is preferably formed in the piston 2.
  • the preferably designed as a throttle bore 17 between the storage space 15 and the gas storage space 6 serves for ventilation of the gas storage space 6.
  • the support plate 16 serves as an abutment for a spring 18.
  • the storage space 15 serves as a second abutment for the spring 18 Cover 19 which closes on the outside and is fastened in the housing 25 of the store 34 and preferably has an opening 20. Seals or retaining rings 21, 22 can be arranged between the piston 2 and the cover 19 on the one hand and the housing wall 25 on the other hand.
  • the check valve 8 arranged according to the invention on the accumulator 34 is designed differently than the valve 7 in the embodiment according to FIG. 2. It has a channel 13 formed in the piston 1, which provides a possible connection between the channels 3 and 9 of the room 1 to the wheel brakes 27 shown in FIG. 1 or to the suction side 30 of the pump 29 also shown there.
  • a closing member 14 is arranged in the form of a ball, which is biased in the closing direction by means of a spring 23 supported on a fastening disk 24 with a guide. All other details of FIG. 3 correspond to those of the exemplary embodiment according to FIG. 2. In the exemplary embodiment according to FIG. 3, only a second seal 21 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Regulating Braking Force (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

L'invention concerne un système de freinage à régulation électronique, comportant une régulation antipatinage (ASR) et/ou un programme de stabilité électronique (EPS), une unité d'actionnement (26), des freins sur roues (27) et une unité de régulation (28) entre l'unité d'actionnement (28) et les freins sur roues (27). L'unité de régulation (26) présente au moins une pompe (29) avec un côté admission (30) et un côté refoulement (31) et une soupape d'inversion (32) entre la régulation antipatinage (ASR) et le programme de stabilité électronique (ESP). Entre la soupape d'inversion (32) et le côté aspiration (30) de la pompe (29), il est prévu un réservoir (34), et côté admission (30) de la pompe (29), il est prévu au moins un clapet antiretour (7, 8). Pour optimiser davantage encore ce type de système de freinage, il est prévu de monter le clapet antiretour (7,8) sur le réservoir (34).
EP99913238A 1998-04-02 1999-03-08 Systeme de freinage a regulation electronique muni d'un reservoir Withdrawn EP1066183A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19814835 1998-04-02
DE1998114835 DE19814835A1 (de) 1998-04-02 1998-04-02 Elektronisch geregelte Bremsanlage mit Speicher
PCT/EP1999/001464 WO1999051476A1 (fr) 1998-04-02 1999-03-08 Systeme de freinage a regulation electronique muni d'un reservoir

Publications (1)

Publication Number Publication Date
EP1066183A1 true EP1066183A1 (fr) 2001-01-10

Family

ID=7863396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99913238A Withdrawn EP1066183A1 (fr) 1998-04-02 1999-03-08 Systeme de freinage a regulation electronique muni d'un reservoir

Country Status (4)

Country Link
EP (1) EP1066183A1 (fr)
JP (1) JP2002510579A (fr)
DE (1) DE19814835A1 (fr)
WO (1) WO1999051476A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1272764A2 (fr) 2000-04-04 2003-01-08 Continental Teves AG & Co. oHG Accumulateur d'agent de pression
DE10016895B4 (de) * 2000-04-05 2008-05-08 Continental Teves Ag & Co. Ohg Hydraulikblock mit mindestens einer Pumpe
DE10352406B4 (de) * 2003-11-10 2013-09-26 Volkswagen Ag Druckspeicher und Bremsanlage mit einem solchen
DE102004060080B4 (de) * 2004-07-08 2015-02-05 Continental Teves Ag & Co. Ohg Kraftfahrzeug-Bremsanlage
JP5558175B2 (ja) * 2010-04-05 2014-07-23 ボッシュ株式会社 車両ブレーキ装置
JP5472075B2 (ja) * 2010-12-17 2014-04-16 株式会社アドヴィックス リザーバ
DE102014010006A1 (de) * 2014-07-05 2016-01-07 Hydac Technology Gmbh Hydropneumatischer Druckspeicher
JP6521589B2 (ja) * 2014-08-07 2019-05-29 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ 車両ブレーキ装置
DE102014220060A1 (de) * 2014-10-02 2016-04-07 Continental Teves Ag & Co. Ohg Kolbenspeicher
DE102019100209A1 (de) * 2019-01-07 2020-07-09 Sartorius Stedim Biotech Gmbh Vorrichtung und Verfahren zum Ausgleich von kurzfristigen Druck- oder Volumenschwankungen eines Mediums in einem kontinuierlich geführten biopharmazeutischen Prozess

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3912935C2 (de) * 1989-03-21 2003-05-28 Continental Teves Ag & Co Ohg Blockiergeschützte, hydraulische Bremsanlage
JPH0565057A (ja) * 1991-09-07 1993-03-19 Sumitomo Electric Ind Ltd ブレーキ液圧制御装置
JPH05116607A (ja) * 1991-10-30 1993-05-14 Sumitomo Electric Ind Ltd ブレーキ液圧制御装置
DE4213205A1 (de) * 1992-04-22 1993-10-28 Teves Gmbh Alfred Bremsdruckregelvorrichtung für eine hydraulische Kraftfahrzeugbremsanlage
DE4301287A1 (de) * 1993-01-13 1994-07-14 Teves Gmbh Alfred Hydraulische Bremsanlage
DE4336464B4 (de) * 1993-10-26 2005-11-17 Robert Bosch Gmbh Hydraulische Bremsanlage
DE19503074A1 (de) * 1995-02-01 1996-08-08 Teves Gmbh Alfred Hydraulische Kraftfahrzeugbremsanlage mit Bremsschlupfregelung und/oder automatischem Bremseneingriff zur Antriebs- und/oder Fahrdynamikregelung
DE19519832B4 (de) * 1995-05-31 2004-04-22 Robert Bosch Gmbh Hydrospeicher
DE19722550A1 (de) * 1997-05-28 1998-12-03 Itt Mfg Enterprises Inc Druckminderungs- und Dämpfungseinrichtung für Kraftfahrzeugbremsanlagen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9951476A1 *

Also Published As

Publication number Publication date
DE19814835A1 (de) 1999-10-07
JP2002510579A (ja) 2002-04-09
WO1999051476A1 (fr) 1999-10-14

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