GB1372398A - Braking systems for motor vehicles - Google Patents

Braking systems for motor vehicles

Info

Publication number
GB1372398A
GB1372398A GB5448571A GB5448571A GB1372398A GB 1372398 A GB1372398 A GB 1372398A GB 5448571 A GB5448571 A GB 5448571A GB 5448571 A GB5448571 A GB 5448571A GB 1372398 A GB1372398 A GB 1372398A
Authority
GB
United Kingdom
Prior art keywords
valve
brake cylinder
electromagnet
brake
regulating valve
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
GB5448571A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1372398A publication Critical patent/GB1372398A/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
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1766—Proportioning of brake forces according to vehicle axle loads, e.g. front to rear of vehicle
    • 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

Landscapes

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

Abstract

1372398 Braking system ROBERT BOSCH GmbH 24 Nov 1971 [25 Nov 1970] 54485/71 Heading F2F A braking system for motor vehicles comprises a braking force regulating valve 13 interposed in the line between a pressure source and a brake cylinder, means for producing a signal proportional to the loading of the vehicle and means for producing a signal proportional to the angular velocity of a wheel of the vehicle. The regulating valve has a member 16 which carries two valve members 17, 19 the arrangement being such that the position of the valve seat 15 for one 17 of the valve members is controllable by a electromagnet 8 which is in turn controlled from a computer 4 which receives the aforementioned signals. As shown the valve 13 allows brake fluid to flow to the brake cylinder which is connected to an outlet 28, the brake fluid operating on a variable effective area diaphragm 22 to control the position of a valve seat 20 which in the "lipped" position of the valve co-operates with the valve member 19 of the member 16. The valve 15, 17 constitutes a brake venting valve which is opened by the electromagnet when a skid is sensed. The electromagnet may be separate from the regulating valve in which case the electromagnet operates a pneumatic valve so that pressurized fluid is allowed to work on the valve seat position controlling member (Fig. 2, not shown). The electromagnet may be coaxial with the regulating valve and the transducer provided for indicating the position of the movable valve seat (Fig. 4, not shown). In a further embodiment the pressures in the braking circuit upstream of the regulating valve and in the brake cylinder itself are monitored and signals proportional thereto fed into the computer for comparison (Fig. 6, not shown). The pressure in the vehicles pneumatic suspension may also be monitored. In a modification of the last mentioned embodiment the brake cylinder pressure in not monitored and during the brake cylinder exhausting sequence of operation the pressurized fluid escaping from the brake cylinder is conducted to the low pressure side of the piston of the brake cylinder to accelerate brake release (Fig. 8,not shown). Suitable circuits for computers to be used with the above constructions are described briefly with reference to Figs. 3, 5 and7 (not shown).
GB5448571A 1970-11-25 1971-11-24 Braking systems for motor vehicles Expired GB1372398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702057973 DE2057973C2 (en) 1970-11-25 1970-11-25 Brake force control system

Publications (1)

Publication Number Publication Date
GB1372398A true GB1372398A (en) 1974-10-30

Family

ID=5789086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5448571A Expired GB1372398A (en) 1970-11-25 1971-11-24 Braking systems for motor vehicles

Country Status (7)

Country Link
AT (1) AT325448B (en)
CH (1) CH530294A (en)
DE (1) DE2057973C2 (en)
FR (1) FR2115388B1 (en)
GB (1) GB1372398A (en)
IT (1) IT941267B (en)
SE (1) SE383995B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062246A1 (en) * 1981-04-03 1982-10-13 CORINT S.r.l. Braking system for motorvehicles
GB2141499A (en) * 1983-05-10 1984-12-19 Sumitomo Electric Industries Brake pressure control system
EP3511214A1 (en) * 2018-01-10 2019-07-17 WABCO Europe BVBA Air brake system with a load sensing valve
CN112672935A (en) * 2018-09-11 2021-04-16 克诺尔轨道车辆系统有限公司 Brake control valve system

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514484C3 (en) * 1975-04-03 1981-08-20 Daimler-Benz Ag, 7000 Stuttgart Load-dependent brake pressure regulator for a vehicle equipped with compressed air brakes
DE2622746A1 (en) * 1976-05-21 1977-11-24 Wabco Westinghouse Gmbh DEVICE FOR BRAKING FORCE CONTROL OF MOTOR VEHICLES
DE2705737A1 (en) * 1977-02-11 1978-08-17 Wabco Westinghouse Gmbh Monitoring system for anti-skid brakes - has two regulator channels which change over when signal duration exceeds threshold
DE2722435C3 (en) * 1977-05-18 1984-02-23 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Safety circuit for anti-lock and load-dependent vehicle brake systems
DE2849879C2 (en) * 1978-11-17 1985-03-14 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Load-dependent control of brake force regulators
JPS5599444A (en) * 1979-01-23 1980-07-29 Nissan Motor Co Ltd Hydraulic brake controller
DE3209248C2 (en) * 1982-03-13 1987-11-12 Graubremse Gmbh, 6900 Heidelberg Load-dependent brake force regulator for commercial vehicles
US4606586A (en) * 1982-03-15 1986-08-19 Robert Bosch Gmbh Brake force regulating system
DE3240275A1 (en) * 1982-10-30 1984-05-03 Robert Bosch Gmbh, 7000 Stuttgart Device for load-dependent braking force control
DE3312981A1 (en) * 1983-04-12 1984-10-18 Robert Bosch Gmbh, 7000 Stuttgart Method and safety device for driving a pressure control valve in an automatically load-dependent braking control
DE3316208A1 (en) * 1983-05-04 1984-11-08 Robert Bosch Gmbh, 7000 Stuttgart Solenoid valve with an energising current control device
DE3444797C1 (en) * 1984-12-08 1986-04-30 Graubremse Gmbh, 6900 Heidelberg Pneumatically actuatable adjusting device for a brake pressure, regulator operating as a function of the load, for motor vehicles
FR2575715B1 (en) * 1985-01-09 1987-02-20 Renault IMPROVEMENTS ON THE BRAKING SYSTEMS OF THE REAR WHEELS OF A VEHICLE
DE3920290A1 (en) * 1988-12-03 1990-06-07 Wabco Westinghouse Fahrzeug DEVICE FOR OBTAINING AN AXLE LOAD SIGNAL
DE4024811C2 (en) * 1990-08-04 1997-02-20 Telefunken Microelectron Device for controlling the braking process of motor vehicles
DE4125842A1 (en) * 1991-08-03 1993-02-04 Teves Gmbh Alfred Load-dependent braking force adjuster with electromagnetic control - adapts closing pressure to vehicular load by variation of travel of pistons into contact with spring
DE4425789C2 (en) * 1994-07-21 1996-06-13 Grau Gmbh Brake system for pneumatically braked trailer vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125379A (en) * 1960-12-28 1964-03-17 valentine
GB1251832A (en) * 1968-01-15 1971-11-03
GB1260483A (en) * 1968-05-03 1972-01-19 Dunlop Holdings Ltd Control valves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062246A1 (en) * 1981-04-03 1982-10-13 CORINT S.r.l. Braking system for motorvehicles
GB2141499A (en) * 1983-05-10 1984-12-19 Sumitomo Electric Industries Brake pressure control system
EP3511214A1 (en) * 2018-01-10 2019-07-17 WABCO Europe BVBA Air brake system with a load sensing valve
CN112672935A (en) * 2018-09-11 2021-04-16 克诺尔轨道车辆系统有限公司 Brake control valve system
CN112672935B (en) * 2018-09-11 2023-03-14 克诺尔轨道车辆系统有限公司 Brake control valve system

Also Published As

Publication number Publication date
CH530294A (en) 1972-11-15
DE2057973C2 (en) 1984-07-05
SE383995B (en) 1976-04-12
DE2057973A1 (en) 1972-06-08
IT941267B (en) 1973-03-01
AT325448B (en) 1975-10-27
FR2115388A1 (en) 1972-07-07
FR2115388B1 (en) 1976-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee