GB1416645A - Wheel anti-locking devices - Google Patents

Wheel anti-locking devices

Info

Publication number
GB1416645A
GB1416645A GB1253073A GB1253073A GB1416645A GB 1416645 A GB1416645 A GB 1416645A GB 1253073 A GB1253073 A GB 1253073A GB 1253073 A GB1253073 A GB 1253073A GB 1416645 A GB1416645 A GB 1416645A
Authority
GB
United Kingdom
Prior art keywords
valve
wheel
medium
brake
valves
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.)
Expired
Application number
GB1253073A
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
Publication of GB1416645A publication Critical patent/GB1416645A/en
Expired 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
    • 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
    • B60T8/50—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 means for controlling the rate at which pressure is reapplied to or released from the brake
    • B60T8/5018—Pressure reapplication using restrictions
    • B60T8/5025—Pressure reapplication using restrictions in hydraulic brake systems
    • B60T8/5037—Pressure reapplication using restrictions in hydraulic brake systems closed systems

Landscapes

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

Abstract

1416645 Anti-lock wheel braking systems ROBERT BOSCH GmbH 15 March 1973 [16 March 1972] 12530/73 Heading F2F A fluid braking system provided with a wheel anti-locking device for a motor vehicle has a return line 7 for the brake pressure medium which is transmissable from the brake line 3 during an anti-locking operation to a low-pressure reservoir 9, a sensor for monitoring the rotational speed of the wheel of the vehicle, and two, two-port, two-way solenoid valves 4, 8 controlled by the sensor. One valve is used for controlling the throughflow of medium through the brake line 3 and has a first valve setting for free flow of medium therethrough and a second setting for flow of medium therethrough by way of a throttle 5 in the valve, the other valve 8 controlling the outflow of medium to the reservoir. As shown, a tandem master cylinder 1 pressurises lines 2, 3 leading, respectively, to front and rear wheel brake cylinders and medium is pumped back to the line 3 by a pump 12 driven by a cam 11 rotated by a vehicle wheel. In an alternative arrangement the pump and non- return valve 10 are dispensed with. During normal braking, the valves 4, 8 assume the position shown in the Figure and the reservoir 9 is empty. If a rear wheel of the vehicle locks, the valves are energized by the sensor, which monitors the rotational speed of the wheel, when the valves assume a second setting in which valve 8 is in a through flow mode and pressure in the brake line 3 is reduced more quickly than it is supplied by way of the throttle 5. After an elapse of time the valve 8 is de-energized by an electronic switch device and returns to its starting position so that brake pressure again increases.
GB1253073A 1972-03-16 1973-03-15 Wheel anti-locking devices Expired GB1416645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722212711 DE2212711A1 (en) 1972-03-16 1972-03-16 BLOCK PROTECTION DEVICE

Publications (1)

Publication Number Publication Date
GB1416645A true GB1416645A (en) 1975-12-03

Family

ID=5839098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253073A Expired GB1416645A (en) 1972-03-16 1973-03-15 Wheel anti-locking devices

Country Status (4)

Country Link
JP (1) JPS491968A (en)
DE (1) DE2212711A1 (en)
FR (1) FR2176105B3 (en)
GB (1) GB1416645A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185299A (en) * 1986-01-15 1987-07-15 Teves Gmbh Alfred Hydraulic servo brake system with slip control
US4789207A (en) * 1986-01-24 1988-12-06 Alfred Teves Gmbh Slip-controlled brake system for automotive vehicles
WO1997015480A1 (en) * 1995-10-27 1997-05-01 Kelsey Hayes Company An isolation valve for an antilock brake system having a controlled bypass
EP0819590A2 (en) * 1996-07-15 1998-01-21 Denso Corporation Brake apparatus for a vehicle
EP0864474A3 (en) * 1997-03-14 1999-06-02 Sumitomo Electric Industries, Ltd. Solenoid controlled valve and antilock control apparatus using the same

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413403B1 (en) * 1971-03-27 1979-05-30
JPS5215046B2 (en) * 1972-06-22 1977-04-26
JPS5293619A (en) * 1976-01-30 1977-08-06 Centre Rech Metallurgique Method and apparatus for continious heat treatment rolled steel sheets
US4099793A (en) * 1976-08-12 1978-07-11 Yamaha Hatsudoki Kabushiki Kaisha Anti-skid vehicle brake system with fluid pressure actuated regulating valve
DE3051254C3 (en) * 1979-02-23 1997-10-09 Lucas Ind Plc Anti-lock brake control system
GB2045372B (en) 1979-02-23 1983-09-14 Lucas Industries Ltd Anti-skid brake control systems
JPS5682650A (en) * 1979-11-10 1981-07-06 Bosch Gmbh Robert Oil pressure brake gear for automobile
JPS59167354A (en) * 1983-03-03 1984-09-20 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Preventive device for locking
DE3421756A1 (en) * 1983-06-14 1985-01-03 Robert Bosch Gmbh, 7000 Stuttgart Antilock control system
DE3435089C2 (en) * 1984-09-25 1995-11-30 Teves Gmbh Alfred Method for checking the tightness of hydraulic brake systems in motor vehicles equipped with brake slip control systems
WO1990015738A2 (en) * 1989-06-17 1990-12-27 Alfred Teves Gmbh Antilock hydraulic braking system
DE4334838A1 (en) * 1993-10-13 1995-04-20 Teves Gmbh Alfred Brake system with electronic anti-lock control
DE19645338A1 (en) * 1996-11-04 1998-05-07 Teves Gmbh Alfred Anti-lock hydraulic motor vehicle brake system
EP1044124A1 (en) * 1998-01-07 2000-10-18 Continental Teves AG & Co. oHG Travel dynamic control system and method for operating a travel dynamic control system
WO2003053753A1 (en) * 2001-12-08 2003-07-03 Continental Teves Ag & Co. Ohg Electromagnetic valve

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185299A (en) * 1986-01-15 1987-07-15 Teves Gmbh Alfred Hydraulic servo brake system with slip control
GB2185299B (en) * 1986-01-15 1989-10-25 Teves Gmbh Alfred Hydraulic servo brake system with slip control
US4789207A (en) * 1986-01-24 1988-12-06 Alfred Teves Gmbh Slip-controlled brake system for automotive vehicles
WO1997015480A1 (en) * 1995-10-27 1997-05-01 Kelsey Hayes Company An isolation valve for an antilock brake system having a controlled bypass
US5725288A (en) * 1995-10-27 1998-03-10 Kelsey-Hayes Company Isolation valve for an antilock brake system having a controlled bypass
EP0819590A2 (en) * 1996-07-15 1998-01-21 Denso Corporation Brake apparatus for a vehicle
EP0819590A3 (en) * 1996-07-15 1999-01-20 Denso Corporation Brake apparatus for a vehicle
EP0864474A3 (en) * 1997-03-14 1999-06-02 Sumitomo Electric Industries, Ltd. Solenoid controlled valve and antilock control apparatus using the same
US6086165A (en) * 1997-03-14 2000-07-11 Sumitomo Electric Industries, Ltd. Solenoid controlled valve and antilock control apparatus using the same

Also Published As

Publication number Publication date
FR2176105B3 (en) 1976-03-12
FR2176105A1 (en) 1973-10-26
DE2212711A1 (en) 1973-09-27
JPS491968A (en) 1974-01-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee