GB1300921A - Improvements in hydraulic braking systems for vehicles - Google Patents

Improvements in hydraulic braking systems for vehicles

Info

Publication number
GB1300921A
GB1300921A GB4930268A GB4930268A GB1300921A GB 1300921 A GB1300921 A GB 1300921A GB 4930268 A GB4930268 A GB 4930268A GB 4930268 A GB4930268 A GB 4930268A GB 1300921 A GB1300921 A GB 1300921A
Authority
GB
United Kingdom
Prior art keywords
valve
outlet
core piece
way
slave cylinders
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
GB4930268A
Inventor
Alexander John Wilson
Philip Augustus Taft
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Priority to GB4930268A priority Critical patent/GB1300921A/en
Publication of GB1300921A publication Critical patent/GB1300921A/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
    • B60T8/44—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
    • B60T8/36—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
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • B60T8/3635—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems switching between more than two connections, e.g. 3/2-valves

Landscapes

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

Abstract

1300921 Antiskid braking systems GIRLING Ltd 15 Jan 1970 [17 Oct 1968] 49302/68 Heading F2F In a vehicle braking antiskid system hydraulic fluid is passed from a pedal-operated valve 11 (or master cylinder) to slave cylinders by way of a solenoid valve 18 which is adapted to cut off supply of fluid to the slave cylinders and return it to a reservoir supplying the valve 11 when signals detected by sensors 20 are passed via an amplifier 21 to the valve 18 when the deceleration of the braked wheels exceeds a predetermined value. In the embodiment shown fluid passes straight to the front wheels by way of conduit 15 and to the rear wheels by way of the valve 18. As shown in Fig. 2, a magnetic core piece 40 of solenoid valve 18 normally closes, at 44, 30, a first outlet 29 leading (at 19, Fig. 1) to the reservoir, while inlet 32 from valve 11 is permitted to communicate via bores 33, 34 and passage 35 with a second outlet 36 leading to the slave cylinders. On energization of solenoid windings 39, the magnetic core piece first opens communication between the second outlet 36 and first outlet 29 via a through bore 41 in the core piece, and then, by stem 42 extending from the core piece, closes inlet 32, spring 43 being thereby compressed.
GB4930268A 1968-10-17 1968-10-17 Improvements in hydraulic braking systems for vehicles Expired GB1300921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4930268A GB1300921A (en) 1968-10-17 1968-10-17 Improvements in hydraulic braking systems for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4930268A GB1300921A (en) 1968-10-17 1968-10-17 Improvements in hydraulic braking systems for vehicles

Publications (1)

Publication Number Publication Date
GB1300921A true GB1300921A (en) 1972-12-29

Family

ID=10451882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4930268A Expired GB1300921A (en) 1968-10-17 1968-10-17 Improvements in hydraulic braking systems for vehicles

Country Status (1)

Country Link
GB (1) GB1300921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454396A1 (en) * 1979-04-19 1980-11-14 Bosch Gmbh Robert ANTI-LOCK PROTECTION DEVICE FOR HYDRAULIC BRAKE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454396A1 (en) * 1979-04-19 1980-11-14 Bosch Gmbh Robert ANTI-LOCK PROTECTION DEVICE FOR HYDRAULIC BRAKE

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Legal Events

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