GB2013808A - Anti-skid braking systems - Google Patents

Anti-skid braking systems

Info

Publication number
GB2013808A
GB2013808A GB7903751A GB7903751A GB2013808A GB 2013808 A GB2013808 A GB 2013808A GB 7903751 A GB7903751 A GB 7903751A GB 7903751 A GB7903751 A GB 7903751A GB 2013808 A GB2013808 A GB 2013808A
Authority
GB
United Kingdom
Prior art keywords
control valves
valves
solenoid pilot
pilot control
braking systems
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
GB7903751A
Other versions
GB2013808B (en
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 GB2013808A publication Critical patent/GB2013808A/en
Application granted granted Critical
Publication of GB2013808B publication Critical patent/GB2013808B/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
    • 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • 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
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/345—Hydraulic systems having more than one brake circuit per wheel
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • 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
    • 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
    • B60T8/44—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
    • 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

Abstract

Anti-skid control valves 12b, 12c, 12d arranged directly in the brake circuits for the purpose of pressure modulation are actuated hydraulically by solenoid pilot control valves 11b, 11c, 11d. The solenoid pilot control valves are preferably controlled by electronic control circuits of appropriate construction which feed control signals to the solenoid pilot control valves cyclically or in a form such that the operation of the valves follows a pattern or cycle. Preferably, the main valves actuated by the solenoid pilot control valves are constructed such that the pressure medium to be controlling is subjected to a throttling action, so reducing pressure fluctuations. <IMAGE>
GB7903751A 1978-02-04 1979-02-02 Apparatus for use in anti-skid systems for motor vehicles Expired GB2013808B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782804854 DE2804854A1 (en) 1978-02-04 1978-02-04 EQUIPMENT FOR ANTI-SKID PROTECTION SYSTEMS FOR MOTOR VEHICLES

Publications (2)

Publication Number Publication Date
GB2013808A true GB2013808A (en) 1979-08-15
GB2013808B GB2013808B (en) 1982-10-27

Family

ID=6031199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7903751A Expired GB2013808B (en) 1978-02-04 1979-02-02 Apparatus for use in anti-skid systems for motor vehicles

Country Status (4)

Country Link
JP (1) JPS54113774A (en)
DE (1) DE2804854A1 (en)
FR (1) FR2416143A1 (en)
GB (1) GB2013808B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497748A1 (en) * 1981-01-14 1982-07-16 Lucas Industries Ltd IMPROVEMENTS IN HYDRAULIC SPRAY BRAKING DEVICES FOR VEHICLES
FR2497749A1 (en) * 1981-01-14 1982-07-16 Lucas Industries Ltd IMPROVED SYSTEM FOR PREVENTING SKATING OF VEHICLES
FR2505758A1 (en) * 1981-05-12 1982-11-19 Lucas Industries Ltd ANTI-SKATING BRAKING DEVICE FOR VEHICLE
FR2519919A1 (en) * 1982-01-15 1983-07-22 Daimler Benz Ag BRAKE FORCE CONTROL DEVICE FOR AT LEAST ONE AXLE OF A VEHICLE EQUIPPED WITH AN ANTI-BLOCKING SYSTEM
EP0115337A2 (en) * 1983-01-25 1984-08-08 Richard Herbst Method and device for controlling the speed of a pneumatic drive unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3313097A1 (en) * 1983-04-12 1984-10-18 Robert Bosch Gmbh, 7000 Stuttgart ANTI-BLOCKING CONTROL SYSTEM

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1555615A1 (en) * 1966-11-21 1970-10-29 Goodyear Tire & Rubber Three-way pressure control valve
CA1004711A (en) * 1971-03-17 1977-02-01 John A. Urban Relay compensator valve
DE2255130C3 (en) * 1971-11-17 1978-03-02 Wagner Electric Corp., Newark, N.J. (V.St.A.) Anti-lock vehicle brake system
DE2242746A1 (en) * 1972-08-31 1974-03-14 Bosch Gmbh Robert ANTI-SKID DEVICE FOR MOTOR VEHICLES
IT1050933B (en) * 1975-11-07 1981-03-20 Fiat Spa HYDRAULIC SYSTEM FOR BRAKING EQUIPPED WITH AN ANTI-SLIP DEVICE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497748A1 (en) * 1981-01-14 1982-07-16 Lucas Industries Ltd IMPROVEMENTS IN HYDRAULIC SPRAY BRAKING DEVICES FOR VEHICLES
FR2497749A1 (en) * 1981-01-14 1982-07-16 Lucas Industries Ltd IMPROVED SYSTEM FOR PREVENTING SKATING OF VEHICLES
FR2505758A1 (en) * 1981-05-12 1982-11-19 Lucas Industries Ltd ANTI-SKATING BRAKING DEVICE FOR VEHICLE
FR2519919A1 (en) * 1982-01-15 1983-07-22 Daimler Benz Ag BRAKE FORCE CONTROL DEVICE FOR AT LEAST ONE AXLE OF A VEHICLE EQUIPPED WITH AN ANTI-BLOCKING SYSTEM
EP0115337A2 (en) * 1983-01-25 1984-08-08 Richard Herbst Method and device for controlling the speed of a pneumatic drive unit
EP0115337A3 (en) * 1983-01-25 1984-09-05 Richard Herbst Method and device for controlling the speed of a pneumatic drive unit

Also Published As

Publication number Publication date
JPS54113774A (en) 1979-09-05
FR2416143A1 (en) 1979-08-31
DE2804854A1 (en) 1979-08-09
GB2013808B (en) 1982-10-27

Similar Documents

Publication Publication Date Title
ES8202514A1 (en) Hydraulic brake system with an antiskid control apparatus
ES8505301A1 (en) A braking system for a vehicle.
GB2013808A (en) Anti-skid braking systems
ES8507054A1 (en) Electro-pneumatic control for a vehicle fluid pressure braking system.
GB2020766A (en) Automotive hydraulic brake pressure control valve assembly
ES468060A1 (en) Hydraulic vehicle brake system
ATE49543T1 (en) DEVICE FOR CONTROLLING BRAKE PRESSURE.
GB1470377A (en) Spring-brake control system
ES8201482A1 (en) Speed reducer control device for a vehicle having two independent pressurized fluid braking circuits
GB2020768B (en) Hydraulic pressure control valve for double piping brakingsystem
JPS53134175A (en) Fluid pressure control valve for two brake systems
GB2019043B (en) Pressure operated hydraulic control valve
GB2019969B (en) Hydraulic automotive brake pressure control valve assembly
GB1535921A (en) Braking system
IT1123515B (en) DETEVES ALFRED GMBH PRESSURE CONTROL VALVE FOR A HYDRAULIC VEHICLE BRAKE SYSTEM
ES8406685A1 (en) Pilot-controlled valve for braking or speed limitation in a hydraulic circuit
JPS52112068A (en) Check valve mechanism for brake-oil-pressure control system
ES461347A1 (en) Pressure-regulating valve for vehicular braking systems
GB1287972A (en)
IT1119230B (en) PRESSURE HYDRAULIC VALVE FOR BRAKE CONTROL
JPS5340162A (en) Hydraulic brake control valve
JPS51146675A (en) Anti-skid controlling device
JPS53118672A (en) Fluid-pressure booster
JPS54101058A (en) Hydraulic pressure control system for multi-system brake
JPS5386973A (en) Pressure control valve device in spring brake pressure control system

Legal Events

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