GB1181963A - Improvements in or relating to Vehicle Braking Systems - Google Patents

Improvements in or relating to Vehicle Braking Systems

Info

Publication number
GB1181963A
GB1181963A GB1655666A GB1655666A GB1181963A GB 1181963 A GB1181963 A GB 1181963A GB 1655666 A GB1655666 A GB 1655666A GB 1655666 A GB1655666 A GB 1655666A GB 1181963 A GB1181963 A GB 1181963A
Authority
GB
United Kingdom
Prior art keywords
valve
chamber
atmosphere
pressure
pipe
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
GB1655666A
Inventor
Frederick James Walker
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.)
Harry Ferguson Research Ltd
Original Assignee
Harry Ferguson Research 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
Priority claimed from GB45518/63A external-priority patent/GB1101582A/en
Application filed by Harry Ferguson Research Ltd filed Critical Harry Ferguson Research Ltd
Priority to GB1655666A priority Critical patent/GB1181963A/en
Priority to US630085A priority patent/US3415578A/en
Priority to DE19671630453 priority patent/DE1630453A1/en
Priority to FR102941A priority patent/FR92144E/en
Priority to GB3264467A priority patent/GB1227335A/en
Priority to US742322A priority patent/US3449019A/en
Priority to DE19681755936 priority patent/DE1755936B1/en
Priority to FR159228A priority patent/FR95238E/en
Publication of GB1181963A publication Critical patent/GB1181963A/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
    • 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
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum 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
    • 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
    • B60T8/38—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 valve means of the relay or driver controlled type
    • 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
    • B60T8/72—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 responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference
    • B60T8/74—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 responsive to a difference between a speed condition, e.g. deceleration, and a fixed reference sensing a rate of change of velocity

Landscapes

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

Abstract

1,181,963. Servo brake systems; valves. HARRY FERGUSON RESEARCH Ltd. 14 April. 1967 [15 April, 1966], No. 16556/66. Addition to 1,101,582. Headings F2F and F2V. In a vehicle according to any one of the claims of Specification 1,101,582, a pressureresponsive control valve 56a is interposed between the valve 14 and the servo-mechanism 11 to control fluid flow from the latter to the former subsequent to anti-skid operation to thereby control reapplication of the brakes. When the brakes are off pipe 56 is connected to the vacuum tank 10 and pipe 55 is connected to atmosphere. The vacuum in chamber 73 is the same as that in chambers d and c so that the atmospheric pressure always present in chamber b opens the valve. During normal brake application valve 56a remains open. During anti-skid operation valve 14 connects pipe 56 to atmosphere and pipe 55 to vacuum tank 10, the pressure in chamber 73 rises to an extent dependent on the time of operation of the rotary inertia device 12. Under slippery road conditions and consequently slow acceleration of the vehicle transmission chamber 73 is connected to atmosphere long enough for the pressure to rise above the predetermined vacuum level. The pressure in chamber c and the loading of spring k then close the valve which remains closed during the pressure rise, air flow being permitted through flap valve r. When the rotary inertia device again becomes inoperative the valve 14 again connects pipes 55 and 56 respectively to atmosphere and the vacuum tank. Withdrawal of air from chamber 73 is restricted as the valve 56a remains closed whilst air can only pass through a passage u or slots (q), Fig. 3 (not shown), thereby delaying reapplication of the brakes and permitting controlled braking suited to the slippery conditions. Connection 55a, which has a non-return valve 55b, assists the expulsion of air from chamber 72 during anti-skid operation. In modifications the vacuum servomechanism may be replaced by an hydraulic servo-mechanism and the anti-skid device may operate in response to changes in linear inertia.
GB1655666A 1963-11-16 1966-04-15 Improvements in or relating to Vehicle Braking Systems Expired GB1181963A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB1655666A GB1181963A (en) 1963-11-16 1966-04-15 Improvements in or relating to Vehicle Braking Systems
US630085A US3415578A (en) 1966-04-15 1967-04-11 Vehicle braking systems
DE19671630453 DE1630453A1 (en) 1963-11-16 1967-04-14 Brake system for vehicles, in particular motor vehicles
FR102941A FR92144E (en) 1963-11-16 1967-04-17 Advanced braking system for vehicles
GB3264467A GB1227335A (en) 1963-11-16 1967-07-15
US742322A US3449019A (en) 1963-11-16 1968-07-03 Vehicle braking systems
DE19681755936 DE1755936B1 (en) 1963-11-16 1968-07-12 Brake system for vehicles with a servo brake device and a sensor device that responds to inertia changes and controls the respective states
FR159228A FR95238E (en) 1963-11-16 1968-07-15 Advanced braking device for vehicles.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB45518/63A GB1101582A (en) 1963-11-16 1963-11-16 Improvements in or relating to vehicle braking systems
GB06555/66A GB1185321A (en) 1963-11-16 1966-04-15 Improvements in or relating to Vehicle Braking Systems.
GB1655666A GB1181963A (en) 1963-11-16 1966-04-15 Improvements in or relating to Vehicle Braking Systems

Publications (1)

Publication Number Publication Date
GB1181963A true GB1181963A (en) 1970-02-18

Family

ID=27257395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1655666A Expired GB1181963A (en) 1963-11-16 1966-04-15 Improvements in or relating to Vehicle Braking Systems

Country Status (3)

Country Link
DE (1) DE1630453A1 (en)
FR (1) FR92144E (en)
GB (1) GB1181963A (en)

Also Published As

Publication number Publication date
DE1630453A1 (en) 1971-04-08
FR92144E (en) 1968-09-27

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