GB1461166A - Brake anti-locking control systems for pressure operated motor vehicle brakes - Google Patents

Brake anti-locking control systems for pressure operated motor vehicle brakes

Info

Publication number
GB1461166A
GB1461166A GB692874A GB692874A GB1461166A GB 1461166 A GB1461166 A GB 1461166A GB 692874 A GB692874 A GB 692874A GB 692874 A GB692874 A GB 692874A GB 1461166 A GB1461166 A GB 1461166A
Authority
GB
United Kingdom
Prior art keywords
speed
circuit
valve
pressure
acceleration
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
GB692874A
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 GB1461166A publication Critical patent/GB1461166A/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
    • B60T8/58—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 speed and another condition or to plural speed conditions
    • 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
    • B60T8/1764—Regulation during travel on surface with different coefficients of friction, e.g. between left and right sides, mu-split or between front and rear

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

1461166 Antiskid braking systems ROBERT BOSCH GmbH 15 Feb 1974 [16 Feb 1973] 6928/74 Heading F2F In an antiskid control system for hydraulically operated vehicle brakes the rear brakes are controlled by a single independent control system incorporating acceleration threshold valve switches and the front brakes are controlled in dependence on the difference between front wheel speeds and the speeds of the rear wheels by two dependent control systems each incorporating at least one speed threshold valve switch and the independent control system has a speed circuit comprising a vehicle speed simulator circuit and an acceleration circuit sequentially connected thereto, the acceleration circuit including a speed threshold valve switch to one input of which a voltage proportional to the circumferential speed of the rear wheels is arranged to be fed and to the other input of which an output of the vehicle speed simulator circuit is connected. Pulsed wheel speed transducers 24, 25, 26, 27 supply pulses to speed circuit 41 and dependent control systems 43, 44 which activate valve arrangements 34, 35. An independent control system 40 comprises a speed circuit 41 and an acceleration circuit 42 whose output actuates a valve arrangement 36. The system is supplied with pressure medium by way of a control valve 31 which produces a braking pressure in line 33 proportional to the displacement of a brake pedal 32. Known safety circuits monitor for example the "on time of the solenoid valves." Fig. 2a shows an arrangement which enables the brake pressure to be increased, decreased or maintained constant and includes an inlet valve 47 and an outlet valve 48. The system provides for a high brake pressure to be built up on an adhesive road surface and then slowly reduced as an acceleration threshold valve switch responds. However on a smooth surface a low pressure is set although the pressure in line 37 is high.
GB692874A 1973-02-16 1974-02-15 Brake anti-locking control systems for pressure operated motor vehicle brakes Expired GB1461166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732307623 DE2307623A1 (en) 1973-02-16 1973-02-16 ANTI-LOCK CONTROL SYSTEM FOR PRESSURE-CONTROLLED MOTOR VEHICLE BRAKES

Publications (1)

Publication Number Publication Date
GB1461166A true GB1461166A (en) 1977-01-13

Family

ID=5872080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB692874A Expired GB1461166A (en) 1973-02-16 1974-02-15 Brake anti-locking control systems for pressure operated motor vehicle brakes

Country Status (5)

Country Link
JP (1) JPS5630222B2 (en)
DE (1) DE2307623A1 (en)
FR (1) FR2218226B1 (en)
GB (1) GB1461166A (en)
IT (1) IT1005754B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135413A (en) * 1983-02-25 1984-08-30 Teves Gmbh Alfred Improvements in brake force distribution
GB2137709A (en) * 1983-04-07 1984-10-10 Teves Gmbh Alfred Wheel slip control in a brake system for automotive vehicles
US4979784A (en) * 1987-06-30 1990-12-25 Tetsuro Arikawa Anti-skid control apparatus for a vehicle braking system
CN114056310A (en) * 2020-08-03 2022-02-18 财团法人车辆研究测试中心 Anti-lock brake system and control method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58191805A (en) * 1982-05-07 1983-11-09 Kaiyo Kagaku Gijutsu Center Long and great floating breakwater of pipe structure
JPS6035650A (en) * 1983-08-09 1985-02-23 Nippon Denso Co Ltd Antiskid controller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135413A (en) * 1983-02-25 1984-08-30 Teves Gmbh Alfred Improvements in brake force distribution
GB2137709A (en) * 1983-04-07 1984-10-10 Teves Gmbh Alfred Wheel slip control in a brake system for automotive vehicles
US4699436A (en) * 1983-04-07 1987-10-13 Itt Industries, Inc. Brake system for automotive vehicles
US4979784A (en) * 1987-06-30 1990-12-25 Tetsuro Arikawa Anti-skid control apparatus for a vehicle braking system
US5011235A (en) * 1987-06-30 1991-04-30 Nippon A B S, Ltd. Anti-skid control apparatus for a vehicle braking system
CN114056310A (en) * 2020-08-03 2022-02-18 财团法人车辆研究测试中心 Anti-lock brake system and control method

Also Published As

Publication number Publication date
IT1005754B (en) 1976-09-30
JPS49113088A (en) 1974-10-28
JPS5630222B2 (en) 1981-07-13
FR2218226B1 (en) 1976-10-01
FR2218226A1 (en) 1974-09-13
DE2307623A1 (en) 1974-08-29

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Legal Events

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