ES370997A1 - Antiskid system - Google Patents

Antiskid system

Info

Publication number
ES370997A1
ES370997A1 ES370997A ES370997A ES370997A1 ES 370997 A1 ES370997 A1 ES 370997A1 ES 370997 A ES370997 A ES 370997A ES 370997 A ES370997 A ES 370997A ES 370997 A1 ES370997 A1 ES 370997A1
Authority
ES
Spain
Prior art keywords
modulator
unit
valve
pressure
modulate
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
ES370997A
Other languages
Spanish (es)
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of ES370997A1 publication Critical patent/ES370997A1/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
    • B60T8/18—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 vehicle weight or load, e.g. load distribution
    • B60T8/1837—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 vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
    • B60T8/185—Arrangements for detecting vehicle level
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or 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
    • B60T8/343—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
    • B60T8/42—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

Landscapes

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

Abstract

A fluid pressure vehicle braking system has an antiskid control unit 34 and modulator 32 operatively located between a pressure source, such as a master cylinder 10 actuated by a booster unit 12 controlled by a pedal 14, and the brake actuators 26, 28, 40, 42 of wheels relating to first and second axles to modulate the braking pressure under control of unit 34 in responce to skidding of at least one wheel, and a second braking pressure modulating device 44 located between the control unit 34 and actuators 40, 42 and responsive to the loading on the second axle. Modulator 32 has an hydraulic piston operating a spring loaded check valve and operated by a piston movable in a pressure chamber connected to the engine manifold via a solenoid operated valve on the one hand and connectable to atmosphere via a second solenoid operated valve on the other hand, the valves operating in response to signals from unit 34. The device 44 is an apportioning valve. If master cylinder 10 is of a split or tandem type the modulator 32 may have two independent modulator pistons simultaneously operated to modulate the separate pressures to front and rear wheels
ES370997A 1968-08-29 1969-08-29 Antiskid system Expired ES370997A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75625968A 1968-08-29 1968-08-29

Publications (1)

Publication Number Publication Date
ES370997A1 true ES370997A1 (en) 1971-08-01

Family

ID=25042693

Family Applications (1)

Application Number Title Priority Date Filing Date
ES370997A Expired ES370997A1 (en) 1968-08-29 1969-08-29 Antiskid system

Country Status (6)

Country Link
US (1) US3576350A (en)
JP (1) JPS4820663B1 (en)
DE (1) DE1943569A1 (en)
ES (1) ES370997A1 (en)
FR (1) FR2016563A1 (en)
GB (1) GB1231929A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754796A (en) * 1968-03-13 1973-08-28 Bendix Corp Hydraulic pressure modulator for use in adaptive braking systems
GB1306108A (en) * 1969-05-11 1973-02-07
FR2052236A5 (en) * 1969-07-31 1971-04-09 Dba
USRE28890E (en) * 1969-09-17 1976-07-06 Girling Limited Actuator assemblies for hydraulic braking systems
GB1324593A (en) * 1969-09-17 1973-07-25 Girling Ltd Hydraulic systems for vehicles
GB1290624A (en) * 1970-01-13 1972-09-27
US3768608A (en) * 1971-01-20 1973-10-30 Bendix Corp Hydraulic spring brake control system
US3764182A (en) * 1971-06-23 1973-10-09 Philco Ford Corp Automotive anti-skid braking
BE791966A (en) * 1971-12-13 1973-03-16 Citroen Sa VEHICLE BRAKE CONTROL DEVICE
FR2168226B1 (en) * 1972-01-21 1974-05-10 Dba
US3888546A (en) * 1973-11-14 1975-06-10 Gen Motors Corp Proportioning valve system for rear braking circuit
JPS6219473Y2 (en) * 1976-08-24 1987-05-19
FR2494653A1 (en) * 1980-11-21 1982-05-28 Dba BRAKING SYSTEM FOR UTILITY VEHICLES
DE3109372A1 (en) * 1981-03-12 1982-09-30 Volkswagenwerk Ag, 3180 Wolfsburg "PUMPLESS HYDRAULIC BRAKE SYSTEM FOR MOTOR VEHICLES"
US4626038A (en) * 1982-02-25 1986-12-02 Honda Giken Kogyo Kabushiki Kaisha Fluid brake system for a motorcycle
US5118164A (en) * 1989-09-29 1992-06-02 Allied-Signal Inc. Adaptive braking system default activated proportioning valve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE349166A (en) * 1929-02-28
US2181161A (en) * 1933-04-15 1939-11-28 Austin M Wolf Vehicle control system
US2088185A (en) * 1935-07-11 1937-07-27 Westinghouse Air Brake Co Fluid pressure brake
US3093422A (en) * 1959-03-16 1963-06-11 Automotive Prod Co Ltd Vehicle brake system
GB1131804A (en) * 1966-04-07 1968-10-30 Automotive Prod Co Ltd Improvements in and relating to fluid pressure operated braking systems for tractor trailer vehicles
US3443842A (en) * 1966-10-27 1969-05-13 Westinghouse Air Brake Co Automated control of railway brake equipment having dynamic and air braking
US3486800A (en) * 1968-03-21 1969-12-30 Kelsey Hayes Co Skid control system including hydraulic modulating valve

Also Published As

Publication number Publication date
JPS4820663B1 (en) 1973-06-22
DE1943569A1 (en) 1970-03-05
FR2016563A1 (en) 1970-05-08
US3576350A (en) 1971-04-27
GB1231929A (en) 1971-05-12

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