GB2002474A - Anti-skid brake control system - Google Patents
Anti-skid brake control systemInfo
- Publication number
- GB2002474A GB2002474A GB7832836A GB7832836A GB2002474A GB 2002474 A GB2002474 A GB 2002474A GB 7832836 A GB7832836 A GB 7832836A GB 7832836 A GB7832836 A GB 7832836A GB 2002474 A GB2002474 A GB 2002474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- apply
- stage
- duration
- brake
- change
- 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.)
- Granted
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
- B60T8/34—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
- B60T8/5006—Pressure reapplication by pulsing of valves
-
- 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
- B60T8/50—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
- B60T8/5075—Pressure release by pulsing of valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
An anti-skid brake control system produces a brake pressure release signal and a subsequent re-apply signal in successive brake pressure release/re-apply cycles; and also a change-over signal to trigger a change from a first, rapid re-apply stage, to a second, slow re-apply stage, during the re-apply stage of each cycle. The change-over point in each cycle is controlled in a manner dependent on the duration of the re-apply stage in the preceding cycle, whereby the duration of the re-apply stage is dynamically adjusted to assume a preset value. Preferably the change- over point in each cycle is further controlled in a manner dependent on the duration of the preceding brake release stage so that the duration of the brake release and brake re-apply stages changes in the same sense. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7832836A GB2002474B (en) | 1977-08-10 | 1978-08-09 | Anti-skid brake control system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3345777 | 1977-08-10 | ||
GB7832836A GB2002474B (en) | 1977-08-10 | 1978-08-09 | Anti-skid brake control system |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2002474A true GB2002474A (en) | 1979-02-21 |
GB2002474B GB2002474B (en) | 1982-03-24 |
Family
ID=26261878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7832836A Expired GB2002474B (en) | 1977-08-10 | 1978-08-09 | Anti-skid brake control system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2002474B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050280A2 (en) * | 1980-10-20 | 1982-04-28 | Knorr-Bremse Ag | Antilock braking force control circuit |
FR2563486A1 (en) * | 1984-04-26 | 1985-10-31 | Bruss Polt I | Brake antilocking device for motor vehicle |
EP0256665A2 (en) * | 1986-08-02 | 1988-02-24 | Automotive Products Public Limited Company | Vehicle antilock braking system |
-
1978
- 1978-08-09 GB GB7832836A patent/GB2002474B/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050280A2 (en) * | 1980-10-20 | 1982-04-28 | Knorr-Bremse Ag | Antilock braking force control circuit |
EP0050280A3 (en) * | 1980-10-20 | 1984-04-18 | Knorr-Bremse Gmbh | Antilock braking force control circuit |
FR2563486A1 (en) * | 1984-04-26 | 1985-10-31 | Bruss Polt I | Brake antilocking device for motor vehicle |
EP0256665A2 (en) * | 1986-08-02 | 1988-02-24 | Automotive Products Public Limited Company | Vehicle antilock braking system |
EP0256665A3 (en) * | 1986-08-02 | 1988-09-07 | Automotive Products Public Limited Company | Vehicle antilock braking system |
Also Published As
Publication number | Publication date |
---|---|
GB2002474B (en) | 1982-03-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920809 |