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GB1193269A - Improvements in or relating to Braking Systems for Motor Vehicles - Google Patents

Improvements in or relating to Braking Systems for Motor Vehicles

Info

Publication number
GB1193269A
GB1193269A GB3890066A GB3890066A GB1193269A GB 1193269 A GB1193269 A GB 1193269A GB 3890066 A GB3890066 A GB 3890066A GB 3890066 A GB3890066 A GB 3890066A GB 1193269 A GB1193269 A GB 1193269A
Authority
GB
United Kingdom
Prior art keywords
front wheel
brake
brakes
fluid
fluid pressure
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
GB3890066A
Inventor
Frank Dorian Marsden
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.)
Rootes Motors Ltd
Original Assignee
Rootes Motors 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 Rootes Motors Ltd filed Critical Rootes Motors Ltd
Priority to GB3890066A priority Critical patent/GB1193269A/en
Priority to DE19671630048 priority patent/DE1630048A1/en
Publication of GB1193269A publication Critical patent/GB1193269A/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
    • B60T8/343—Systems characterised by their lay-out
    • B60T8/344—Hydraulic systems
    • B60T8/346—2 Channel 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
    • B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
    • 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
    • B60T8/4241—Debooster systems having a fluid actuated expansion unit pneumatically
    • B60T8/425—Debooster systems having a fluid actuated expansion unit pneumatically using a vacuum
    • 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)

Abstract

1,193,269. Anti-skid braking systems for road vehicles. ROOTES MOTORS Ltd. 25 Aug., 1967 [31 Aug., 1966], No.38900/66. Headng F2F. A road vehicle braking system which prevents skidding when brakes are applied too severely, incorporates at least one brake pressure releasing device responsive to the rate of deceleration of the front wheels. The deceleration sensing and pressure releasing device is illustrated in Figs. 3, 4 (not shown). In an embodiment Fig. 1, pressurized fluid from a master cylinder 64 is fed via a servo operated valve in the deceleration responsive device 67 to a front wheel brake 60 and rear wheel brake 62, and via a similar device 68 to front wheel brake 61 and rear wheel brake 63. Pulleys 10 of the devices are coupled to the respective front wheel. If say front wheel 60 decelerates too quickly a flywheel in the device 67 overruns the pulley to open a valve (27) (Fig. 3, not shown) admitting air to the servo unit which shuts a ball valve (48) in the fluid pressure line to the associated front and rear brakes, by pressing down on a spring loaded piston of the servo. The piston, via a push rod normally holds the ball valve open. The push rod is slidable in a cylindrical chamber communicating with the fluid lines to the brakes so that as the push rod moves to its valve release position brake fluid is free to occupy the vacated volume in the cylinder and thereby the fluid pressure is reduced. In this embodiment braking pressure can be applied to an outer front wheel on a corner, even if the inner front wheel has little adhesion. Alternatively as shown Fig. 2, brakes on diagonally opposite wheels are connected to one fluid pressure line. Furthermore there may be two master cylinders, one to each fluid pressure line. The front to rear brake pressures may be in a ratio 70: 30 or 75: 25. Reference has been directed by the Comptroller to Specification 962,933.
GB3890066A 1966-08-31 1966-08-31 Improvements in or relating to Braking Systems for Motor Vehicles Expired GB1193269A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3890066A GB1193269A (en) 1966-08-31 1966-08-31 Improvements in or relating to Braking Systems for Motor Vehicles
DE19671630048 DE1630048A1 (en) 1966-08-31 1967-08-30 Braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3890066A GB1193269A (en) 1966-08-31 1966-08-31 Improvements in or relating to Braking Systems for Motor Vehicles

Publications (1)

Publication Number Publication Date
GB1193269A true GB1193269A (en) 1970-05-28

Family

ID=10406389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3890066A Expired GB1193269A (en) 1966-08-31 1966-08-31 Improvements in or relating to Braking Systems for Motor Vehicles

Country Status (2)

Country Link
DE (1) DE1630048A1 (en)
GB (1) GB1193269A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518472A1 (en) * 1981-12-18 1983-06-24 Teves Gmbh Alfred HYDRAULIC BRAKE SYSTEM WITH MULTIPLE CIRCUITS, IN PARTICULAR FOR MOTOR VEHICLES
JPS6137570A (en) * 1984-07-25 1986-02-22 ルーカス・インダストリーズ・パブリツク・リミテツド・カンパニー Hydraulic type non-skid brake gear for car
GB2165603A (en) * 1984-10-11 1986-04-16 Lucas Ind Plc Improvements in hydraulic anti-skid systems for vehicles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919691A1 (en) * 1979-05-16 1980-12-18 Klaue Hermann Hydraulic braking system for vehicle - has braking force distributed diagonally between two circuits, each having separate anti-wheel lock control
DE2919692A1 (en) * 1979-05-16 1980-12-18 Klaue Hermann Braking system for vehicle with front-wheel drive - distributes braking force between front and rear wheels according to given ratio
DE2926227A1 (en) * 1979-05-16 1981-01-08 Klaue Hermann Vehicle antiskid brake control - has electronic control to balance modulation on cornering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518472A1 (en) * 1981-12-18 1983-06-24 Teves Gmbh Alfred HYDRAULIC BRAKE SYSTEM WITH MULTIPLE CIRCUITS, IN PARTICULAR FOR MOTOR VEHICLES
JPS6137570A (en) * 1984-07-25 1986-02-22 ルーカス・インダストリーズ・パブリツク・リミテツド・カンパニー Hydraulic type non-skid brake gear for car
GB2165603A (en) * 1984-10-11 1986-04-16 Lucas Ind Plc Improvements in hydraulic anti-skid systems for vehicles

Also Published As

Publication number Publication date
DE1630048A1 (en) 1971-08-05

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee