GB1429286A - Anti-locking device for the wheels of a motor vehicle - Google Patents

Anti-locking device for the wheels of a motor vehicle

Info

Publication number
GB1429286A
GB1429286A GB3410374A GB3410374A GB1429286A GB 1429286 A GB1429286 A GB 1429286A GB 3410374 A GB3410374 A GB 3410374A GB 3410374 A GB3410374 A GB 3410374A GB 1429286 A GB1429286 A GB 1429286A
Authority
GB
United Kingdom
Prior art keywords
valve
port
pressure
brake
wheel
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
GB3410374A
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
Priority claimed from DE19722242746 external-priority patent/DE2242746A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1429286A publication Critical patent/GB1429286A/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
    • B60T8/50—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 means for controlling the rate at which pressure is reapplied to or released from the brake
    • B60T8/5087—Pressure release using restrictions
    • 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
    • B60T8/3605—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 wherein the pilot valve is mounted in a circuit controlling the working fluid system
    • 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
    • B60T8/50—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 means for controlling the rate at which pressure is reapplied to or released from the brake
    • B60T8/5018—Pressure reapplication using restrictions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Regulating Braking Force (AREA)

Abstract

1429286 Antiskid braking systems ROBERT BOSCH GmbH 2 Aug 1974 [3 Aug 1973] 34103/74 Addition to 1428223 Heading F2F An antilocking device forming part of a vehicle brake system comprises a valve assembly 1 operably connected to a wheel sensor 2<SP>1</SP> supplying signals to electronic control apparatus 3<SP>1</SP> which converts signals indicative of wheel retardation into control signals for electromagnetically operated pilot valves 6, 7 each controlling a valve 18, 19 of which one, 18 is a two port/two-way valve and the other 19 is a three port/two-way valve, both valves being connected in the brake line of the system the two-port/two-way main valve 18 being connected behind the three port/two-way main valve 19 in the direction of a wheel cylinder and a throttle 33 housed in a branch line 35 parallel to the two port/two-way main valve 18 and a non-return valve 15 also being housed in the branch line 35 the non-return valve 15 allowing pressure medium to flow only to the brake cylinder. When a wheel approaches skid condition pilot valve 7 is operated so that valve 19 moves downward to block brake line 4, 5 and open cylinder 3 to atmosphere via valve 18 After a sharp drop in pressure to point 2 of the graph shown in Fig. 2 of pressure against time the circuit for valve 6 is closed to close valve 18 and prevent further drop in pressure. At point 3 on the graph both valves 6 and 7 are turned off so that a steep pressure rise is allowed to point 4 when valve 6 is closed and valve 18 closes so that the increase in brake pressure can only be effected at a lower rate 'via the throttle 33.
GB3410374A 1972-08-31 1974-08-02 Anti-locking device for the wheels of a motor vehicle Expired GB1429286A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722242746 DE2242746A1 (en) 1972-08-31 1972-08-31 ANTI-SKID DEVICE FOR MOTOR VEHICLES
DE19732339372 DE2339372A1 (en) 1972-08-31 1973-08-03 ANTI-SKID DEVICE FOR MOTOR VEHICLES

Publications (1)

Publication Number Publication Date
GB1429286A true GB1429286A (en) 1976-03-24

Family

ID=25763777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3410374A Expired GB1429286A (en) 1972-08-31 1974-08-02 Anti-locking device for the wheels of a motor vehicle

Country Status (3)

Country Link
DE (1) DE2339372A1 (en)
FR (1) FR2239366B2 (en)
GB (1) GB1429286A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224671A (en) * 1975-08-19 1977-02-24 Mitsuwa Seiki Co Ltd Anti-skid device for air brake
JPS5224672A (en) * 1975-08-19 1977-02-24 Mitsuwa Seiki Co Ltd Modulator at anti-skid device for air brake
GB1564510A (en) * 1976-03-19 1980-04-10 Girling Ltd Fluid pressure operated anti-skid braking systems for vehicles

Also Published As

Publication number Publication date
DE2339372A1 (en) 1975-02-13
FR2239366B2 (en) 1976-07-30
FR2239366A2 (en) 1975-02-28

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Legal Events

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