GB1295822A – – Google Patents
GB1295822A – – Google Patents
Info
Publication number
GB1295822A
GB1295822A
GB1295822DA
GB1295822A
GB 1295822 A
GB1295822 A
GB 1295822A
GB 1295822D A
GB1295822D A
GB 1295822DA
GB 1295822 A
GB1295822 A
GB 1295822A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
alarm
signal
wheel
Prior art date
1970-01-08
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
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.)
1970-01-08
Filing date
1970-01-08
Publication date
1972-11-08
1970-01-08
Application filed
filed
Critical
1972-11-08
Publication of GB1295822A
publication
Critical
patent/GB1295822A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
B60T8/885—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
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
B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
B60T17/18—Safety devices; Monitoring
B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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
B60T8/42—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 expanding chambers for controlling pressure, i.e. closed systems
B60T8/4208—Debooster systems
B60T8/4225—Debooster systems having a fluid actuated expansion unit
B60T8/4241—Debooster systems having a fluid actuated expansion unit pneumatically
B60T8/425—Debooster systems having a fluid actuated expansion unit pneumatically using a vacuum
Abstract
1295822 Aritiskid braking systems; alarms and indicators AISIN SEIKI CO Ltd 8 Jan 1970 1057/70 Headings F2E and F2F An antiskid brake pressure control system for vehicle hydraulic brakes including an alarm indicating a malfunction has a wheel-driven generator 10 supplying a signal, representing angular deceleration of a wheel, to an amplifier which is in turn connected to a Schmitt circuit, the latter circuit actuating an electromagnetically operated valve to control braking pressure and an alarm which co-operates with. the Schmitt circuit to operate if the signal extends beyond a predetermined period. A suction source 31 such as the intake manifold of the vehicle engine is conndcted to a pneumatic servo of an hydraulic pressure modulator of which the two chambers 41c, 41d are normally kept in communication by piping 50 via a control valve 51 operated by a solenoid coil 11 so that the diaphragm piston 42 is urged by a spring 46 into a position where a piston-rod 42a contacts a stem 61a to open a valve 61, operation of valve 51 allowing ambient atmosphere pressure in chamber 41d to provide a differential pressure to close valve 61 and restrict braking pressure to rear wheels. As the signal is formed current passes through a relay RY-8 to charge a capacitor C9 and when the voltage reaches a predetermined level an alarm 19 is energized through a Zener diode D10.
GB1295822D
1970-01-08
1970-01-08
Expired
GB1295822A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB105770
1970-01-08
Publications (1)
Publication Number
Publication Date
GB1295822A
true
GB1295822A
(en)
1972-11-08
Family
ID=9715428
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1295822D
Expired
GB1295822A
(en)
1970-01-08
1970-01-08
Country Status (1)
Country
Link
GB
(1)
GB1295822A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1994021502A1
(en)
*
1993-03-17
1994-09-29
Vehicle Assemblers New Zealand Limited
Testing of anti-lock braking systems
1970
1970-01-08
GB
GB1295822D
patent/GB1295822A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
WO1994021502A1
(en)
*
1993-03-17
1994-09-29
Vehicle Assemblers New Zealand Limited
Testing of anti-lock braking systems
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Legal Events
Date
Code
Title
Description
1973-03-21
PS
Patent sealed
1977-08-03
PLNP
Patent lapsed through nonpayment of renewal fees
