Fluid-pressure and analogous brake systems – Pipeless valves
Patent
1976-01-13
1980-03-18
Frankfort, Charles E.
Fluid-pressure and analogous brake systems
Pipeless valves
188181A, 303105, 361238, B60T 808
Patent
active
041936426
ABSTRACT:
A skid control system which compares a current representative of wheel deceleration with an alterable reference current using an integrating comparator to control the brakes of a vehicle. The reference current has an initial value which represents a wheel deceleration indicative of an incipient skid condition and is increased to a substantially higher value after the current representative of wheel deceleration reaches the initial reference current value and is reduced to a very low value after a predetermined period of time. When the current representative of wheel deceleration exceeds the reference current by a predetermined degree as determined by the integrating comparator, the brakes are released. The brakes are reapplied after the current representative of wheel deceleration no longer exceeds the reference current at a time determined by the integrating comparator.
REFERENCES:
patent: 3017145 (1962-01-01), Yarber
patent: 3574426 (1971-04-01), Ruof
patent: 3606490 (1971-09-01), Ando
patent: 3652132 (1972-03-01), Ando et al.
patent: 3690735 (1972-09-01), Arai et al.
patent: 3710186 (1973-01-01), Sharp
patent: 3870376 (1975-03-01), Riordan
patent: 3912340 (1975-10-01), Bertolasi
Eisenzopf Reinhard J.
Frankfort Charles E.
Kelsey Hayes Co.
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