GB1354453A – Vehicle breaking system
– Google Patents
GB1354453A – Vehicle breaking system
– Google Patents
Vehicle breaking system
Info
Publication number
GB1354453A
GB1354453A
GB1895672A
GB1895672A
GB1354453A
GB 1354453 A
GB1354453 A
GB 1354453A
GB 1895672 A
GB1895672 A
GB 1895672A
GB 1895672 A
GB1895672 A
GB 1895672A
GB 1354453 A
GB1354453 A
GB 1354453A
Authority
GB
United Kingdom
Prior art keywords
pressure
voltage
condenser
wheel
port
Prior art date
1971-04-23
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
GB1895672A
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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.)
1971-04-23
Filing date
1972-04-24
Publication date
1974-06-05
1972-04-24
Application filed by Aisin Seiki Co Ltd
filed
Critical
Aisin Seiki Co Ltd
1974-06-05
Publication of GB1354453A
publication
Critical
patent/GB1354453A/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
B60T8/34—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
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
B60T8/34—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
B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
B60T8/362—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in pneumatic systems
B60T8/3625—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in pneumatic systems having at least one vacuum connection
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
B60T8/44—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
B60T8/447—Reducing the boost of the power-assist booster means to reduce brake pressure
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
B60T8/58—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 responsive to speed and another condition or to plural speed conditions
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S303/00—Fluid-pressure and analogous brake systems
Y10S303/02—Brake control by pressure comparison
Y10S303/03—Electrical pressure sensor
Y10S303/04—Pressure signal used in electrical speed controlled braking circuit
Abstract
1354453 Hydraulic braking systems AISIN SEIKI KK 24 April 1972 [23 April 1971] 18956/72 Heading F2F In a vehicle braking system a wheel speed responsive electrical signal charges a condenser 107 the output voltage of which is varied in response to the braking effort applied to a braking member such as a pedal 11 and compared with a voltage developed in response to the rotational speed of the wheel 53 such that when the latter voltage is higher than the former the hydraulic pressure to a brake cylinder 54 is arranged to be increased. As shown the system comprises a master cylinder 14, a pressure reducer 16, a pressure intensifier 32 and solenoid valves 60, 80 arranged respectively to cause decrease and increase of the fluid pressure on reception of an appropriate signal from an electronic control circuit. In normal braking fluid passes to wheel cylinder 54 by way of conduit 15, pressure reducer 16, conduit 31, intensifier 32 and conduit 52. Wheel speed is detected by a generator 100 connected through a half-wave rectifier diode 101 and smoothing resistor 102 to one side of a condenser 103 the voltage across which is responsive to wheel speed. Current passes to the bases of transistors 111, 115 which are non-conductive thereby maintaining actuating transistors of solenoid valves 60, 80 non- conductive. When pedal 11 is depressed a switch 105 is opened and a condenser 107 begins to discharge through transistor 108 and resistor 109. This discharging voltage is established by the variable resistance appearing at an hydraulic pressure sensor connected to the base of transistor 108. With higher braking pressures a higher discharge voltage appears at the base of a transistor 111 the potential at which corresponds in turn to the foot pressure at pedal 11. Condenser 103 is connected in parallel with a diode 113 and resistor 114 and a junction e therebetween connects the base of the transistor 115 to the emitter of a transistor 116 thereby providing a comparator circuit. Wheel brake pressure amplification.-If the wheel speed voltage is higher than the condenser 107 discharge voltage, transistors 115, 111 and 123 conduct and a solenoid 86 of valve 80 is energized thereby attracting a plunger 88 leftwardly. A valve disc 89 thereupon separates from a seat 92 and contacts a seat 95 allowing air to pass through port 94, filter 93, port 85, conduit 84 and port 83 to chamber 40 of intensifier 32. A pressure differential across a diaphragm 38 is thereby established causing a plunger 42 rigid therewith to move leftwardly. A piston 45 is moved in the same direction to increase the pressure fed to wheel cylinder 54. Wheel brake pressure release.-When the wheel speed signal from generator 100 becomes significantly lower than that from condenser 107, transistors 116 and 125 become conductive thereby causing a solenoid 64 of valve 60 to be energized. A plunger 66 then moves leftwardly separating a valve disc 69 from a seat 70 and contacting it with seat 73. Air then passes through port 72, filter 71, port 62, conduit 59 and port 58 into the chamber 22 of pressure reducer 16 causing an air pressure differential across diaphragm 20. A valve ball 27 and plunger 33 are shifted leftwardly first to seat ball 27 at 36, thereby separating the master cylinder and wheel cylinder, whereafter plunger 33 moves further leftwardly to increase the volume of liquid in a chamber 29.
GB1895672A
1971-04-23
1972-04-24
Vehicle breaking system
Expired
GB1354453A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP2690471
1971-04-23
Publications (1)
Publication Number
Publication Date
GB1354453A
true
GB1354453A
(en)
1974-06-05
Family
ID=12206204
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1895672A
Expired
GB1354453A
(en)
1971-04-23
1972-04-24
Vehicle breaking system
Country Status (3)
Country
Link
US
(1)
US3934939A
(en)
DE
(1)
DE2220579A1
(en)
GB
(1)
GB1354453A
(en)
Families Citing this family (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPH0662079B2
(en)
*
1985-11-14
1994-08-17
トヨタ自動車株式会社
Brake system for automobile
DE3841956A1
(en)
*
1988-12-14
1990-06-21
Bosch Gmbh Robert
ANTI-BLOCKING CONTROL SYSTEM
JP3336633B2
(en)
*
1992-07-30
2002-10-21
住友電気工業株式会社
Electronic control brake device and method for setting brake characteristics in brake device
FR2844055B1
(en)
*
2002-08-22
2005-08-26
Bosch Gmbh Robert
TEST CONTROL METHOD AND DEVICE
US20050023887A1
(en)
*
2003-07-29
2005-02-03
Delphi Technologies Inc.
Vacuum actuated brake pressure intensifier
US8321112B2
(en)
*
2008-03-12
2012-11-27
Toyota Motor Engineering & Manufacturing North America, Inc.
Systems and methods for adjusting downshift points in vehicle transmissions
US9441713B2
(en)
2014-11-25
2016-09-13
Innovatech Llc
Vehicle braking system brake bias adjuster having a visible brake bias ratio indicator and method and apparatus for retrofitting a vehicle with a vehicle braking system brake bias adjustment knob assembly having a visible brake bias ratio indicator
US9266509B1
(en)
2014-11-25
2016-02-23
Innovatech, Llc
Vehicle braking system brake bias adjuster having a visible brake bias ratio indicator and method and apparatus for retrofitting a vehicle with a vehicle braking system brake bias adjustment knob assembly having a visible brake bias ratio indicator
USD757516S1
(en)
2014-11-25
2016-05-31
Innovatech, Llc
Brake bias adjuster knob
USD758825S1
(en)
2015-07-30
2016-06-14
Innovatech, Llc
Brake bias adjuster knob
USD834914S1
(en)
2017-11-14
2018-12-04
Innovatech, Llc
Brake bias adjuster knob
NZ745719A
(en)
2018-08-27
2019-12-20
Holder Industries Ltd
A brake bias control system and components therefor
USD911825S1
(en)
2019-02-04
2021-03-02
Innovatech, Llc
Locking cable rotation tool
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR1453883A
(en)
*
1965-05-21
1966-07-22
Rech Etudes Prod
Method and device for controlling the braking of a vehicle on pneumatic wheels
US3401984A
(en)
*
1967-01-24
1968-09-17
Henriette L Williams
Vehicle brake control
US3540781A
(en)
*
1968-08-20
1970-11-17
Nippon Denso Co
Antiskid apparatus for automotive vehicles
JPS512593B1
(en)
*
1969-07-01
1976-01-27
US3737201A
(en)
*
1970-06-24
1973-06-05
Aisin Seiki
Method and apparatus for generating a control signal for use in a vehicle brake system
JPS5131345B1
(en)
*
1970-07-24
1976-09-06
JPS5032393B1
(en)
*
1970-09-11
1975-10-20
DE2049262B2
(en)
*
1970-10-07
1976-10-07
Alfred Teves Gmbh, 6000 Frankfurt
DEVICE FOR PREVENTING THE SPINNING OF THE DRIVEN WHEELS OF A MOTOR VEHICLE
1972
1972-04-24
DE
DE19722220579
patent/DE2220579A1/en
active
Pending
1972-04-24
GB
GB1895672A
patent/GB1354453A/en
not_active
Expired
1974
1974-04-12
US
US05/460,618
patent/US3934939A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
US3934939A
(en)
1976-01-27
DE2220579A1
(en)
1972-11-09
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Legal Events
Date
Code
Title
Description
1974-10-09
PS
Patent sealed [section 19, patents act 1949]
