GB1288030A - - Google Patents
Info
- Publication number
- GB1288030A GB1288030A GB5011470A GB5011470A GB1288030A GB 1288030 A GB1288030 A GB 1288030A GB 5011470 A GB5011470 A GB 5011470A GB 5011470 A GB5011470 A GB 5011470A GB 1288030 A GB1288030 A GB 1288030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- circuit
- pedals
- fed
- amplitude
- 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
- B60T8/17—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
1288030 Aritiskid braking systems GOODYEAR TIRE & RUBBER CO 22 Oct 1970 [18 Nov 1969] 50114/70 Heading F2F An electrical signal, directly proportional to the brake pedal force is compared with a further signal, the amplitude of which is inversely proportional to the amount of skidding, and the lower of the two currents drives a valve 40 to decrease the hydraulic pressure supplied to a brake 44 for a rotating element 46. As shown, two pedals 10, 12 for different operators may be provided each of which actuates a pair of linearvariable differential transformers 18-18a and 20-20a respectively providing A.C. signals, of an amplitude directly proportional to the pedal force, which are rectified in rectifiers 22, 24, amplified at 26, 28 and fed to a circuit 30 that transmits only the higher of the two signals. The higher signal is fed to a circuit 36 having a second input which is an antiskid signal 52 which decreases in proportion to the amount of skidding by the provision of a shunt 56 and current to voltage circuit 58 which is fed with a current from a constant current source 54. When a skid develops signal 52 causes shunt 56 to divert from source 54 a current directly proportional to the amplitude of the antiskid signal. The output of circuit 58 is then zero and this is recognized as the lowest of the two inputs to a circuit 36 and is the controlling signal for valve 40. If the force on pedals 10, 12 is reduced so that the brake pressure is below the skid threshold, valve 40 once again becomes controlled by the braking circuits. Pedals 10, 12 are provided with springs 14, 16 which simulate the pedal action of a completely hydraulic braking system.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87779469A | 1969-11-18 | 1969-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1288030A true GB1288030A (en) | 1972-09-06 |
Family
ID=25370742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5011470A Expired GB1288030A (en) | 1969-11-18 | 1970-10-22 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS507239B1 (en) |
DE (1) | DE2056827A1 (en) |
FR (1) | FR2067352B1 (en) |
GB (1) | GB1288030A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7908080B2 (en) | 2004-12-31 | 2011-03-15 | Google Inc. | Transportation routing |
DE102010023565B4 (en) * | 2010-06-10 | 2012-06-28 | Siemens Aktiengesellschaft | Electrically operable brake, electrical anti-slip arrangement for such a brake, and method for operating an electrically operable brake |
FR3030450B1 (en) * | 2014-12-19 | 2018-04-27 | Airbus Operations | METHOD AND SYSTEM FOR BRAKING THE FLOOR OF AN AIRCRAFT. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008933B (en) * | 1954-07-03 | 1957-05-23 | Daimler Benz Ag | Pedal pressure tester |
GB1085212A (en) * | 1964-03-03 | 1967-09-27 | Dunlop Rubber Co | Braking systems |
-
1970
- 1970-10-22 GB GB5011470A patent/GB1288030A/en not_active Expired
- 1970-11-06 FR FR7040057A patent/FR2067352B1/fr not_active Expired
- 1970-11-13 DE DE19702056827 patent/DE2056827A1/en active Pending
- 1970-11-16 JP JP10029770A patent/JPS507239B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS507239B1 (en) | 1975-03-24 |
FR2067352A1 (en) | 1971-08-20 |
FR2067352B1 (en) | 1974-09-20 |
DE2056827A1 (en) | 1971-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |