GB1461166A - Brake anti-locking control systems for pressure operated motor vehicle brakes - Google Patents
Brake anti-locking control systems for pressure operated motor vehicle brakesInfo
- Publication number
- GB1461166A GB1461166A GB692874A GB692874A GB1461166A GB 1461166 A GB1461166 A GB 1461166A GB 692874 A GB692874 A GB 692874A GB 692874 A GB692874 A GB 692874A GB 1461166 A GB1461166 A GB 1461166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- circuit
- valve
- pressure
- acceleration
- 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
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
- B60T8/32—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
-
- 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
- B60T8/1764—Regulation during travel on surface with different coefficients of friction, e.g. between left and right sides, mu-split or between front and rear
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
1461166 Antiskid braking systems ROBERT BOSCH GmbH 15 Feb 1974 [16 Feb 1973] 6928/74 Heading F2F In an antiskid control system for hydraulically operated vehicle brakes the rear brakes are controlled by a single independent control system incorporating acceleration threshold valve switches and the front brakes are controlled in dependence on the difference between front wheel speeds and the speeds of the rear wheels by two dependent control systems each incorporating at least one speed threshold valve switch and the independent control system has a speed circuit comprising a vehicle speed simulator circuit and an acceleration circuit sequentially connected thereto, the acceleration circuit including a speed threshold valve switch to one input of which a voltage proportional to the circumferential speed of the rear wheels is arranged to be fed and to the other input of which an output of the vehicle speed simulator circuit is connected. Pulsed wheel speed transducers 24, 25, 26, 27 supply pulses to speed circuit 41 and dependent control systems 43, 44 which activate valve arrangements 34, 35. An independent control system 40 comprises a speed circuit 41 and an acceleration circuit 42 whose output actuates a valve arrangement 36. The system is supplied with pressure medium by way of a control valve 31 which produces a braking pressure in line 33 proportional to the displacement of a brake pedal 32. Known safety circuits monitor for example the "on time of the solenoid valves." Fig. 2a shows an arrangement which enables the brake pressure to be increased, decreased or maintained constant and includes an inlet valve 47 and an outlet valve 48. The system provides for a high brake pressure to be built up on an adhesive road surface and then slowly reduced as an acceleration threshold valve switch responds. However on a smooth surface a low pressure is set although the pressure in line 37 is high.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732307623 DE2307623A1 (en) | 1973-02-16 | 1973-02-16 | ANTI-LOCK CONTROL SYSTEM FOR PRESSURE-CONTROLLED MOTOR VEHICLE BRAKES |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1461166A true GB1461166A (en) | 1977-01-13 |
Family
ID=5872080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB692874A Expired GB1461166A (en) | 1973-02-16 | 1974-02-15 | Brake anti-locking control systems for pressure operated motor vehicle brakes |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5630222B2 (en) |
DE (1) | DE2307623A1 (en) |
FR (1) | FR2218226B1 (en) |
GB (1) | GB1461166A (en) |
IT (1) | IT1005754B (en) |
Cited By (4)
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 |
US4979784A (en) * | 1987-06-30 | 1990-12-25 | Tetsuro Arikawa | Anti-skid control apparatus for a vehicle braking system |
CN114056310A (en) * | 2020-08-03 | 2022-02-18 | 财团法人车辆研究测试中心 | Anti-lock brake system and control method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58191805A (en) * | 1982-05-07 | 1983-11-09 | Kaiyo Kagaku Gijutsu Center | Long and great floating breakwater of pipe structure |
JPS6035650A (en) * | 1983-08-09 | 1985-02-23 | Nippon Denso Co Ltd | Antiskid controller |
-
1973
- 1973-02-16 DE DE19732307623 patent/DE2307623A1/en active Pending
- 1973-11-26 FR FR7342059A patent/FR2218226B1/fr not_active Expired
-
1974
- 1974-02-13 JP JP1749774A patent/JPS5630222B2/ja not_active Expired
- 1974-02-15 GB GB692874A patent/GB1461166A/en not_active Expired
- 1974-02-15 IT IT4154774A patent/IT1005754B/en active
Cited By (6)
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 |
US4979784A (en) * | 1987-06-30 | 1990-12-25 | Tetsuro Arikawa | Anti-skid control apparatus for a vehicle braking system |
US5011235A (en) * | 1987-06-30 | 1991-04-30 | Nippon A B S, Ltd. | Anti-skid control apparatus for a vehicle braking system |
CN114056310A (en) * | 2020-08-03 | 2022-02-18 | 财团法人车辆研究测试中心 | Anti-lock brake system and control method |
Also Published As
Publication number | Publication date |
---|---|
IT1005754B (en) | 1976-09-30 |
JPS49113088A (en) | 1974-10-28 |
JPS5630222B2 (en) | 1981-07-13 |
FR2218226B1 (en) | 1976-10-01 |
FR2218226A1 (en) | 1974-09-13 |
DE2307623A1 (en) | 1974-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |