GB1431466A - Skid control system for vehicle brakes - Google Patents

Skid control system for vehicle brakes

Info

Publication number
GB1431466A
GB1431466A GB5334373A GB5334373A GB1431466A GB 1431466 A GB1431466 A GB 1431466A GB 5334373 A GB5334373 A GB 5334373A GB 5334373 A GB5334373 A GB 5334373A GB 1431466 A GB1431466 A GB 1431466A
Authority
GB
United Kingdom
Prior art keywords
speed
wheels
signal
wheel
pair
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
GB5334373A
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.)
Kelsey Hayes Co
Original Assignee
Kelsey Hayes Co
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 Kelsey Hayes Co filed Critical Kelsey Hayes Co
Publication of GB1431466A publication Critical patent/GB1431466A/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
    • B60T8/1761—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • B60T8/17613—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure based on analogue circuits or digital circuits comprised of discrete electronic elements
    • 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
    • B60T8/321—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 deceleration

Abstract

1431466 Anti-skid braking systems KELSEY HAYES CO 16 Nov 1973 [14 Dec 1972] 53343/73 Heading F2F A skid control system for a vehicle having a pair of front wheels 14, 16, a pair of rear wheels 10, 12 and individual fluid brake systems for each pair of wheels, comprises first and second speed sensing means 38, 40 associated with individual ones of the pair of front wheels 14, 16 for providing respective speed signals representing the speeds of the individual front wheels, the speed sensing means being operatively coupled with skid control means comprising means responsive to an incipient wheel skid at one of the front wheels for modulating the fluid pressure in the brake system for the front wheels, and a high speed select circuit 94 operatively coupled to the first and second speed sensing means comprising means for developing a reference signal representing the speed of the faster wheel of the pair of front wheels. There is also skid control means for the rear pair of wheels 10, 12 comprising speed sensing means 36 associated with those wheels for providing a rear speed signal, a comparison circuit for comparing the rear speed signal with the reference signal, and means for modulating the fluid pressure in the brake system of the rear wheels when the difference between the rear speed signal and the reference signal exceeds a preselected level. As shown, the sensors 38, 40 are connected to a skid control module 92 and the high wheel select logic module circuit 94, the module 92 skid controlling the front wheels 14, 16 by detecting an incipient skid at either wheel to modulate the front brakes via a brake pressure modulator 26; the circuit 94 discriminates against the slower front wheel to provide an output signal representing the speed of the faster front wheel which signal is supplied to an averaging and scaling circuit 98. The latter supplies a signal to a subtractor 102 and which represents the front wheel speed to which the rear wheels are slaved. The sensor 36 is connected to a signal conditioner 104, e.g. a digital-to-analogue converter, which provides a signal to the subtracter 102; a signal is supplied by the subtractor to the brake pressure modulator 24 so that the rear wheel brakes are modulated when the speed of the rear wheels drops below the speed of the front wheels by a preselected slip.
GB5334373A 1972-12-14 1973-11-16 Skid control system for vehicle brakes Expired GB1431466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31513572A 1972-12-14 1972-12-14

Publications (1)

Publication Number Publication Date
GB1431466A true GB1431466A (en) 1976-04-07

Family

ID=23223053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5334373A Expired GB1431466A (en) 1972-12-14 1973-11-16 Skid control system for vehicle brakes

Country Status (8)

Country Link
JP (2) JPS4987967A (en)
AU (1) AU474585B2 (en)
BR (1) BR7309766D0 (en)
CA (1) CA1012229A (en)
DE (1) DE2362352A1 (en)
FR (1) FR2327119A1 (en)
GB (1) GB1431466A (en)
ZA (1) ZA738692B (en)

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
US5010489A (en) * 1988-04-05 1991-04-23 Nippondenso Co., Ltd. Anti-skid control system with a common braking pressure control device for different wheels
US5632535A (en) * 1995-08-28 1997-05-27 Kelsey-Hayes Company Dynamic rear proportioning brake system
US7809486B2 (en) 2005-04-29 2010-10-05 Kelsey-Hayes Company Pressure boost for vehicle rear brake circuits
US11926329B2 (en) 2018-11-12 2024-03-12 Foundation Brakes France Motor vehicle control module and method, comprising an evaluation of rear wheel speed based on the front wheels only

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147061A (en) * 1981-03-06 1982-09-10 Toshiba Corp Speed detecting device for vehicle
DE3301948A1 (en) * 1983-01-21 1984-07-26 Alfred Teves Gmbh, 6000 Frankfurt METHOD AND DEVICE FOR CONTROLLING THE BRAKING DISTRIBUTION
JPH0624912B2 (en) * 1987-01-26 1994-04-06 本田技研工業株式会社 Vehicle anti-lock control method
JP2628584B2 (en) * 1987-11-30 1997-07-09 住友電気工業株式会社 Anti-lock control system for four-wheel drive vehicles
JP6008408B2 (en) 2014-09-30 2016-10-19 大王製紙株式会社 Pants-type disposable diaper

Cited By (7)

* 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
US5010489A (en) * 1988-04-05 1991-04-23 Nippondenso Co., Ltd. Anti-skid control system with a common braking pressure control device for different wheels
US5632535A (en) * 1995-08-28 1997-05-27 Kelsey-Hayes Company Dynamic rear proportioning brake system
US7809486B2 (en) 2005-04-29 2010-10-05 Kelsey-Hayes Company Pressure boost for vehicle rear brake circuits
US11926329B2 (en) 2018-11-12 2024-03-12 Foundation Brakes France Motor vehicle control module and method, comprising an evaluation of rear wheel speed based on the front wheels only

Also Published As

Publication number Publication date
FR2327119A1 (en) 1977-05-06
CA1012229A (en) 1977-06-14
AU6366473A (en) 1975-06-19
DE2362352A1 (en) 1974-06-20
BR7309766D0 (en) 1974-08-29
AU474585B2 (en) 1976-07-29
FR2327119B1 (en) 1979-10-05
ZA738692B (en) 1974-09-25
JPS5983657U (en) 1984-06-06
JPS4987967A (en) 1974-08-22

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931115