Fluid-pressure and analogous brake systems – Pipeless valves
Patent
1977-09-13
1979-03-27
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Pipeless valves
303110, B60T 808
Patent
active
041462769
ABSTRACT:
An anti-skid brake control system which is adapted to control the brake of a wheel comprising a brake release switch that produces a control signal to release the brake on detection of the onset of skidding of the wheel, a sensor for producing an electrical signal proportional to the angular acceleration of the wheel, a charging circuit which is responsive to the acceleration signal and produces a corresponding output signal so that the amplitude-time curves of the two signals cross-over one another after the acceleration peak resulting from release of the brake, and a brake re-applying switch which compares the acceleration signal and the output signal from the charging circuit and produces a control signal to re-apply the brake after the cross-over point. The charging circuit is preferably adapted so that the amplitude-time curves of the acceleration signal and output signal cross over one another after the deceleration peak as well as after the subsequent acceleration peak, and the brake re-apply switch produces a control signal to release the brake or hold the brake released or partially released during the period between the two cross-over points and to re-apply the brake after the second cross-over point.
REFERENCES:
patent: 3532393 (1970-10-01), Riordan
patent: 3604761 (1969-06-01), Okamoto
patent: 3652136 (1972-03-01), Schlitz
patent: 3861758 (1975-01-01), Oglesbee
patent: 3964796 (1976-06-01), Bremer
patent: 3966267 (1976-06-01), McNinch
Brearley Malcolm
Milsom Paul J.
Blix Trygve M.
Eisenzopf Reinhard J.
Girling Limited
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