GB1430721A - Antiskid control systems for vehicles - Google Patents

Antiskid control systems for vehicles

Info

Publication number
GB1430721A
GB1430721A GB3202674A GB3202674A GB1430721A GB 1430721 A GB1430721 A GB 1430721A GB 3202674 A GB3202674 A GB 3202674A GB 3202674 A GB3202674 A GB 3202674A GB 1430721 A GB1430721 A GB 1430721A
Authority
GB
United Kingdom
Prior art keywords
switch
wheel velocity
wheel
signal
brake
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
GB3202674A
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.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Publication of GB1430721A publication Critical patent/GB1430721A/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
    • B60T8/17—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
    • B60T8/1763—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface
    • B60T8/17633—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface based on analogue circuits or digital circuits comprised of discrete electronic elements

Abstract

1430721 Anti-skid braking systems AKEBONO BRAKE INDUSTRY CO Ltd 19 July 1974 [21 July 1973] 32026/74 Heading F2F An anti-skid braking system comprises a sensor I and frequency to voltage converter 2 for converting wheel velocity into voltage signals, means for detecting commencement of wheel lock in the form of a comparison circuit 4, a brake pressure modulator 8, a low peak value holding circuit for memorizing a minimum value of the wheel velocity signal, and a comparison circuit 5 for comparing the actual wheel velocity with the memorized low value and providing a signal to reduce operation of the brake pressure modulator when the two values satisfy a predetermined relationship. The low peak value holding circuit includes a switch 9 which will normally remain closed but will open at least after issue of the modulator control signal, a condenser 11 to which the wheel velocity signal will be applied when the switch is closed and a diode 10 and resistors 12, 13 which allow the condenser to discharge during an open state of the switch when the wheel velocity signal drops below a stored value. The switch may be operated by the brake pedal or by a solenoid 18 responsive to a control signal associated with wheel lock. The embodiment of Fig. 4 also includes a deceleration-responsive switch 20 comprising terminals 22, 23 and mercury 25 enclosed in a glass tube 25 which operates under high deceleration rates to allow recovery of wheel speed.
GB3202674A 1973-07-21 1974-07-19 Antiskid control systems for vehicles Expired GB1430721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8219373A JPS566900B2 (en) 1973-07-21 1973-07-21

Publications (1)

Publication Number Publication Date
GB1430721A true GB1430721A (en) 1976-04-07

Family

ID=13767583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3202674A Expired GB1430721A (en) 1973-07-21 1974-07-19 Antiskid control systems for vehicles

Country Status (4)

Country Link
JP (1) JPS566900B2 (en)
DE (1) DE2434918A1 (en)
FR (1) FR2237786B1 (en)
GB (1) GB1430721A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075538A (en) * 1976-05-19 1978-02-21 General Electric Company Adaptive acceleration responsive system
JPS5332290A (en) * 1976-09-06 1978-03-27 Akebono Brake Ind Co Ltd Anti-skid device
JPS6257891A (en) * 1985-09-05 1987-03-13 フアナツク株式会社 Balancer mechanism of joint type industrial robot

Also Published As

Publication number Publication date
JPS566900B2 (en) 1981-02-14
FR2237786A1 (en) 1975-02-14
DE2434918A1 (en) 1975-02-06
JPS5031286A (en) 1975-03-27
FR2237786B1 (en) 1979-03-30

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Legal Events

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