GB1335916A - Pneumatic anti-skid devices - Google Patents
Pneumatic anti-skid devicesInfo
- Publication number
- GB1335916A GB1335916A GB2128871A GB2128871A GB1335916A GB 1335916 A GB1335916 A GB 1335916A GB 2128871 A GB2128871 A GB 2128871A GB 2128871 A GB2128871 A GB 2128871A GB 1335916 A GB1335916 A GB 1335916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- piston
- skid
- chamber
- braking
- 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
- B60T8/34—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
-
- 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
- B60T8/50—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
-
- 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
- B60T8/5056—Pressure reapplication using memory devices
- B60T8/5062—Pressure reapplication using memory devices using memory chambers
- B60T8/5068—Pressure reapplication using memory devices using memory chambers having decay means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
1335916 Anti-skid device KNORR-BREMSE GmbH 19 April 1971 [7 Feb 1970] 21288/71 Heading F2F A pneumatic anti-skid device for use in a vehicle braking system which has a skid-sensing means connected to the device is, in use, connected in the braking line and allows braking pressure build up for normal braking applications until a skid is sensed whereby the device brings about a throttled reduction of braking pressure and then permits a subsequent increase in braking pressure at a rate less than the build up of braking pressure during normal brake applications. These steps are effected by a first valve 44, 46 and a second valve 13, 27. In the construction shown the device is in its rest position whence fluid pressure can pass through chambers 12, 14, 36 and 48 to normally apply a brake through an actuator 52. The skid sensing means 78 on sensing a skid activates the solenoid 80 of a solenoid actuated valve member 68, 73 so that the member moves to stop venting of a chamber 40 to atmosphere and apply to the chamber 40 reservoir pressure. This actuates a piston 39 with the resultant opening and closing respectively of a series of valves including valve 44, 46 so that pressure medium in the brake actuator may pass through a throttle 47 in the piston 39 to atmosphere to provide the throttled reduction of braking pressure. At the same time a chamber 5 is pressurized so that a piston 3 is actuated on extension 13 of the piston-rod 10 thereof throttling the passage between the chambers 12 and 14 so that, on deactivation of the solenoid and return of the parts at the right hand side of the device as seen in the drawing to their rest positions a throttled brake application is effected until such time that a chamber 24 which is connected to the chamber 48 reaches such a pressure that a piston 23 is actuated to bring about the cutting off of communication between the two chambers 12 and 14. A stable braking pressure lower than that originally applied is thus achieved. After a time pressure acting in chamber 5 will reach a value due to a throttle 61 which communicates with the atmosphere that the piston 3 will be urged by the spring 6 to its rest position and thus allow a further build up of braking pressure. The piston-rod 10 and extension 13 may be provided with a variably throttled passage 19, the throttling member being adjustable through an opening in the housing 2 of the device, the opening normally being closed by a screw 81. The pressure operating cycle is depicted in Fig. 2 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702005631 DE2005631C3 (en) | 1970-02-07 | 1970-02-07 | Anti-skid regulator for vehicles with compressed air brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1335916A true GB1335916A (en) | 1973-10-31 |
Family
ID=5761688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2128871A Expired GB1335916A (en) | 1970-02-07 | 1971-04-19 | Pneumatic anti-skid devices |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT314381B (en) |
DE (1) | DE2005631C3 (en) |
FR (1) | FR2079312B1 (en) |
GB (1) | GB1335916A (en) |
HU (1) | HU164920B (en) |
RO (1) | RO55656A (en) |
SE (1) | SE380485B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2001144A (en) * | 1977-07-13 | 1979-01-24 | Girling Ltd | Anti-skid vehicle braking systems |
GB2130668A (en) * | 1982-11-23 | 1984-06-06 | Lucas Ind Plc | Re-applying the brakes after anti-skid control in compressed air- operated braking systems for vehicles |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4580849A (en) * | 1982-11-23 | 1986-04-08 | Lucas Industries Public Limited Company | Fluid-pressure operated braking systems for vehicles |
DE10341932A1 (en) * | 2003-09-11 | 2005-04-21 | Wabco Gmbh & Co Ohg | Method for controlling the inlet pressure of an ABS control valve |
-
1970
- 1970-02-07 DE DE19702005631 patent/DE2005631C3/en not_active Expired
-
1971
- 1971-02-01 RO RO6575771A patent/RO55656A/ro unknown
- 1971-02-04 AT AT93271A patent/AT314381B/en not_active IP Right Cessation
- 1971-02-05 SE SE147171A patent/SE380485B/en unknown
- 1971-02-05 HU HUKO002399 patent/HU164920B/hu unknown
- 1971-02-08 FR FR7104073A patent/FR2079312B1/fr not_active Expired
- 1971-04-19 GB GB2128871A patent/GB1335916A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2001144A (en) * | 1977-07-13 | 1979-01-24 | Girling Ltd | Anti-skid vehicle braking systems |
GB2001144B (en) * | 1977-07-13 | 1982-01-20 | Girling Ltd | Improvements in anit-skid vehicle braking systems |
GB2130668A (en) * | 1982-11-23 | 1984-06-06 | Lucas Ind Plc | Re-applying the brakes after anti-skid control in compressed air- operated braking systems for vehicles |
Also Published As
Publication number | Publication date |
---|---|
DE2005631A1 (en) | 1971-09-09 |
HU164920B (en) | 1974-05-28 |
DE2005631B2 (en) | 1975-04-17 |
RO55656A (en) | 1974-01-03 |
FR2079312B1 (en) | 1976-02-06 |
SE380485B (en) | 1975-11-10 |
AT314381B (en) | 1974-04-10 |
DE2005631C3 (en) | 1975-12-04 |
FR2079312A1 (en) | 1971-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |