SE7408527L - - Google Patents
Info
- Publication number
- SE7408527L SE7408527L SE7408527A SE7408527A SE7408527L SE 7408527 L SE7408527 L SE 7408527L SE 7408527 A SE7408527 A SE 7408527A SE 7408527 A SE7408527 A SE 7408527A SE 7408527 L SE7408527 L SE 7408527L
- Authority
- SE
- Sweden
- Prior art keywords
- orifice
- valve
- actuators
- wheel
- pressure
- Prior art date
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
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
-
- 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
-
- 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
- B60T8/4275—Pump-back systems
- B60T8/4283—Pump-back systems having a pressure sensitive inlet valve
-
- 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
- B60T8/50—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 means for controlling the rate at which pressure is reapplied to or released from the brake
- B60T8/5018—Pressure reapplication using restrictions
- B60T8/5025—Pressure reapplication using restrictions in hydraulic brake systems
- B60T8/5031—Pressure reapplication using restrictions in hydraulic brake systems open systems
-
- 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
- B60T8/50—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 means for controlling the rate at which pressure is reapplied to or released from the brake
- B60T8/5087—Pressure release using restrictions
- B60T8/5093—Pressure release using restrictions in hydraulic brake systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
1435677 Antiskid braking systems DBA SA 5 June 1974 [29 June 1973] 24980/74 Heading F2F In an antiskid braking method the angular speed of at least one wheel is monitored by a sensor 60, the information obtained is fed to an electronic control unit 62 to generate an output signal resulting from a pre-established condition representing a risk of wheel lock and a valve assembly 24 is operated by means of the signal the assembly comprising a valve controlling flow between pressure source and a set of actuators and means for reducing braking pressure, the set of actuators being mounted on a single axle and the supply thereto being cut upon receipt of said signal until the brakes are released and the pressure in the actuators is reduced in successive steps, each change of step resulting from the detection of a subsequent risk of skidding of the monitored wheel. The speed of pressure reduction in the actuators as varied as a function of the pressure prevailing and as a function of the instantaneous deceleration of a monitored wheel. A master cylinder 10 has one outlet connected to the front brakes and the other to the rear brakes via valve assembly 24 which includes an inlet orifice 28 an outlet orifice 30 and a discharge orifice 32 connected to the reservoir 34 of the master cylinder, the orifice 28 being connected to orifice 30 via an isolation valve having its ball closure member 36 normally biased off its seat 37 by a spring 38. Grooves 39 permit unretarded flow around the ball. Orifice 30 is connected to orifice 32 by way of a relief solenoid valve 40 of which the closure member 42 is normally biased on to its seat 41 by a spring 44, seats 37 and 44 being in alignment. A constriction 50 situated between valve outlet 48 and orifice 32 is arranged in parallel with a by-pass duct 52 controlled by a valve 54 held in its closed position by a piston 56 exposed to the pressure prevailing in the rear brake actuators 14 and counteracting a spring 58. Signals from sensor 60 are fed to control' unit 62 which controls energization of the valve 40. If the vehicle has a plurality of speed sensors the signal selected is that of the slowest wheel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7323973A FR2235027B1 (en) | 1973-06-29 | 1973-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7408527L true SE7408527L (en) | 1974-12-30 |
SE405954B SE405954B (en) | 1979-01-15 |
Family
ID=9121808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7408527A SE405954B (en) | 1973-06-29 | 1974-06-27 | PROCEDURE FOR SLIP-RELEASING BRAKING OF VEHICLES AND FOR PERFORMING THE SET INTENDED VALVE UNIT |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5321473B2 (en) |
DE (1) | DE2431218C2 (en) |
ES (1) | ES427786A1 (en) |
FR (1) | FR2235027B1 (en) |
GB (1) | GB1435677A (en) |
IT (1) | IT1027530B (en) |
SE (1) | SE405954B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233866A (en) * | 1975-09-10 | 1977-03-15 | Nippon Steel Corp | Runnout table for continuous roll mill |
JPS5290781A (en) * | 1976-01-23 | 1977-07-30 | Sharp Corp | Pressure control valve for vehicle lock protection device |
US4123118A (en) * | 1977-01-05 | 1978-10-31 | Sharp Kabushiki Kaisha | Antilock brake control system for a motorcycle front wheel |
FR2402556A1 (en) * | 1977-09-09 | 1979-04-06 | Dba | ANTI-SKID BRAKING SYSTEM COMPRISING A FLUID RE-SUPPLY DEVICE AND RE-SUPPLY DEVICE FOR SUCH A SYSTEM |
JPS56148956U (en) * | 1981-04-01 | 1981-11-09 | ||
US4675212A (en) * | 1981-09-21 | 1987-06-23 | Mannington Mills, Inc. | Process for manufacturing decorative surface coverings |
IT1208331B (en) * | 1984-06-15 | 1989-06-12 | Fiat Auto Spa | ANTI-SKID APPARATUS FOR VEHICLES |
US5622413A (en) * | 1994-08-17 | 1997-04-22 | Daewoo Electronics Co., Ltd. | Valve utilizing shape memory alloys and an anti-lock brake system with the valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE698858C (en) * | 1939-10-07 | 1940-11-19 | Knorr Bremse Akt Ges | Device for releasing locked axles |
US3503653A (en) * | 1967-03-13 | 1970-03-31 | Eaton Yale & Towne | Velocity sensing anti-skid braking system |
DE2050690B2 (en) * | 1970-10-15 | 1977-04-07 | Graubremse Gmbh, 6900 Heidelberg | Anti blocking brake control for heavy vehicle - with brake pressure modulation to smooth out cyclic braking |
BE787296A (en) * | 1971-08-09 | 1973-02-07 | Philips Nv | BRAKING DEVICE FOR VEHICLES, WITH ANTI-LOCK BRAKE CONTROL MEANS |
-
1973
- 1973-06-29 FR FR7323973A patent/FR2235027B1/fr not_active Expired
-
1974
- 1974-06-05 GB GB2498074A patent/GB1435677A/en not_active Expired
- 1974-06-27 SE SE7408527A patent/SE405954B/en not_active IP Right Cessation
- 1974-06-28 ES ES427786A patent/ES427786A1/en not_active Expired
- 1974-06-28 IT IT2456474A patent/IT1027530B/en active
- 1974-06-28 DE DE19742431218 patent/DE2431218C2/en not_active Expired
- 1974-06-28 JP JP7348674A patent/JPS5321473B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1435677A (en) | 1976-05-12 |
FR2235027B1 (en) | 1976-05-07 |
IT1027530B (en) | 1978-12-20 |
SE405954B (en) | 1979-01-15 |
JPS5036876A (en) | 1975-04-07 |
DE2431218C2 (en) | 1986-12-04 |
DE2431218A1 (en) | 1975-01-16 |
FR2235027A1 (en) | 1975-01-24 |
JPS5321473B2 (en) | 1978-07-03 |
ES427786A1 (en) | 1976-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7408527-5 Effective date: 19940710 Format of ref document f/p: F |