GB1466302A - Skid control system for vehicle brakes - Google Patents

Skid control system for vehicle brakes

Info

Publication number
GB1466302A
GB1466302A GB3937876A GB3937876A GB1466302A GB 1466302 A GB1466302 A GB 1466302A GB 3937876 A GB3937876 A GB 3937876A GB 3937876 A GB3937876 A GB 3937876A GB 1466302 A GB1466302 A GB 1466302A
Authority
GB
United Kingdom
Prior art keywords
output signal
skid
detector
circuit
recovery
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
GB3937876A
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 GB1466302A publication Critical patent/GB1466302A/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

Landscapes

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

Abstract

1466302 Antiskid braking systems KELSEYHAYES CO 16 Aug 1974 [4 Sept 1973] 39378/76 Divided out of 1466301 Heading F2F An antiskid braking system comprises a sensor for providing an output signal representative of wheel speed, a skid detector 18 responsive to said output signal for providing an output signal representative of a detected skid condition, a skid recovery detector 20 also responsive to the wheel speed signal for providing an output signal representative of recovery from skid condition, timing means including a charge storage device in the form of a capacitor 24, a circuit 38 responsive to the skid detector output for charging the capacitor and means responsive to the recovery detector output for discharging the capacitor and providing an output signal in accordance with the level of charge of the capacitor, the braking pressure being relieved in response to the skid detector output and being maintained relieved in response to the timing means output signal and being re-applied in response to the skid recovery output signal regardless of the timer output signal. The skid detector output signal operates a brake pressure modulator 16 through an output driver circuit 28 and under certain severe skid conditions the holding circuit 22 which includes the capacitor 24 maintains the driver output signal but if the wheel spins up at a predetermined rate the recovery detector 20 provides an output signal taking precedence of that of circuit 22 to reapply the brakes. A skid detector inhibit circuit 30 prevents the detector 18 from providing an output signal during the existence of a recovery output signal, a saturation limiting feedback circuit 32 adjusts the response of the skid detector when the wheel deceleration exceeds an upper deceleration threshold and a low speed detector 34 disables that circuit when the wheel speed is below a predetermined threshold, control of the various circuits being achieved by means of AND gates 46, 52, 60, NOT gate 46 and OR gates 44, 48, 54, 56.
GB3937876A 1973-09-04 1974-08-16 Skid control system for vehicle brakes Expired GB1466302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39372773A 1973-09-04 1973-09-04

Publications (1)

Publication Number Publication Date
GB1466302A true GB1466302A (en) 1977-03-09

Family

ID=23555993

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3621774A Expired GB1466301A (en) 1973-09-04 1974-08-16 Skid control system for vehicle brakes
GB3937876A Expired GB1466302A (en) 1973-09-04 1974-08-16 Skid control system for vehicle brakes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3621774A Expired GB1466301A (en) 1973-09-04 1974-08-16 Skid control system for vehicle brakes

Country Status (6)

Country Link
JP (2) JPS5053787A (en)
DE (1) DE2442362A1 (en)
FR (2) FR2244652B1 (en)
GB (2) GB1466301A (en)
IN (1) IN140698B (en)
ZA (1) ZA744735B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036001A (en) * 2020-01-08 2020-04-21 吉林省允祥环保设备有限公司 Rapid-installation modular dust removal device suitable for drying system and working method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6339891U (en) * 1986-08-29 1988-03-15
JPS6339892U (en) * 1986-08-29 1988-03-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036001A (en) * 2020-01-08 2020-04-21 吉林省允祥环保设备有限公司 Rapid-installation modular dust removal device suitable for drying system and working method thereof

Also Published As

Publication number Publication date
FR2244652A1 (en) 1975-04-18
FR2257471B1 (en) 1980-03-28
AU7172174A (en) 1976-02-05
JPS5053787A (en) 1975-05-13
FR2257471A1 (en) 1975-08-08
IN140698B (en) 1976-12-11
FR2244652B1 (en) 1978-02-17
ZA744735B (en) 1975-08-27
JPS6034059U (en) 1985-03-08
JPS623323Y2 (en) 1987-01-26
GB1466301A (en) 1977-03-09
DE2442362A1 (en) 1975-03-06

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Legal Events

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