GB1485080A - Hydraulic braking system with antiskid device - Google Patents

Hydraulic braking system with antiskid device

Info

Publication number
GB1485080A
GB1485080A GB3783575A GB3783575A GB1485080A GB 1485080 A GB1485080 A GB 1485080A GB 3783575 A GB3783575 A GB 3783575A GB 3783575 A GB3783575 A GB 3783575A GB 1485080 A GB1485080 A GB 1485080A
Authority
GB
United Kingdom
Prior art keywords
chamber
piston
brakes
pressure
hydraulic braking
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
GB3783575A
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of GB1485080A publication Critical patent/GB1485080A/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
    • B60T13/16—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 pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161—Systems with master cylinder
    • B60T13/162—Master cylinder mechanically coupled with booster
    • 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
    • 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
    • B60T8/40—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 comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4004—Repositioning the piston(s) of the brake control means by means of a fluid pressurising means in order to reduce the brake pressure

Landscapes

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

Abstract

1485080 Dual hydraulic braking systems FIAT SpA 15 Sept 1975 [25 Sept 1974] 37835/75 Heading F2F An hydraulic braking system including antiskid control comprises a rear circuit 101 fed from pump 53 and controlled by the throttling of a chamber 41 in response to the pressure in a first chamber 31 and, a front circuit 105 fed from chamber 97 whose pressure is dependent on that in a third chamber 81 which is at rear brake pressure. Depression of pedal 111 causes a first piston 9 to move to the left generating a pressure increase in chamber 31 which is communicated via passage 7 to raise a piston 11 restricting flow from transmission driven volumetric pump to reservoir 49 and causing a consequent pressure increase in pipe 57 which communicates with rear brakes 99 via switch valve 61, antiskid device 73 the third chamber 81. The pressure increase in chamber 81 causes leftward movement of piston 81 to operate front brakes 103. If, however, the vehicle is stationary, i.e. the pump 53 is inoperative, pedal depression causes passage of fluid from chamber 31 via constricted passage 65 and switch valve 61 to operate the brakes as before. If a failure occurs in the rear brake circuit the front brakes are still operable as piston-rod 25 may contact piston 87 and cause leftward movement thereof.
GB3783575A 1974-09-25 1975-09-15 Hydraulic braking system with antiskid device Expired GB1485080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6987674A IT1020861B (en) 1974-09-25 1974-09-25 HYDRAULIC BRAKING SYSTEM WITH ANTI-SLIP DEVICE

Publications (1)

Publication Number Publication Date
GB1485080A true GB1485080A (en) 1977-09-08

Family

ID=11313003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3783575A Expired GB1485080A (en) 1974-09-25 1975-09-15 Hydraulic braking system with antiskid device

Country Status (5)

Country Link
JP (1) JPS5160872A (en)
DE (1) DE2542586A1 (en)
FR (1) FR2286033A1 (en)
GB (1) GB1485080A (en)
IT (1) IT1020861B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565182A1 (en) * 1984-06-02 1985-12-06 Bosch Gmbh Robert SERVO BRAKE

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1040384B (en) * 1974-10-25 1979-12-20 Teldix Gmbh ANTI-LOCK ADJUSTMENT DEVICE
US4203349A (en) * 1978-04-03 1980-05-20 The Bendix Corporation Brake booster
DE2908480A1 (en) * 1979-03-05 1980-10-09 Teves Gmbh Alfred HYDRAULIC BRAKE CONTROL DEVICE FOR MOTOR VEHICLES WITH AN ANTI-LOCK BRAKING SYSTEM
DE2925478A1 (en) * 1979-06-23 1981-01-22 Bosch Gmbh Robert HYDRAULIC MAIN BRAKE CYLINDER
DE3136616A1 (en) * 1981-09-15 1983-03-31 Alfred Teves Gmbh, 6000 Frankfurt Brake antilock device
DE3736059A1 (en) * 1987-10-24 1989-05-03 Teves Gmbh Alfred Hydraulic booster for a motor vehicle brake system and an antilock hydraulic brake system with a booster of the said type

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565182A1 (en) * 1984-06-02 1985-12-06 Bosch Gmbh Robert SERVO BRAKE
GB2160938A (en) * 1984-06-02 1986-01-02 Bosch Gmbh Robert Hydraulic brake system

Also Published As

Publication number Publication date
FR2286033A1 (en) 1976-04-23
DE2542586A1 (en) 1976-04-08
JPS5160872A (en) 1976-05-27
IT1020861B (en) 1977-12-30
FR2286033B1 (en) 1979-01-19

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Legal Events

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