Anti-skid brake control system

Details Anti-skid brake control system Anti-skid brake control system

1978-08-09

1980-06-24

Kelmachter, Barry L.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

303103, B60T 802

Patent

active

042092035

ABSTRACT:
An anti-skid brake control system has a brake pressure control unit for producing a release signal to trigger the release of brake pressure and a subsequent re-apply signal to trigger the re-application of brake pressure in successive brake pressure release/re-apply cycles; and a change-over control unit for producing a change-over signal to trigger a change from a first, rapid re-apply stage, in which brake pressure is re-applied rapidly, to a second, slow re-apply stage in which brake pressure is re-applied slowly, during the re-apply period of each cycle; the change-over control unit including a storing device responsive to the duration of the re-apply period in successive cycles so that the change-over point in each cycle is controlled in a manner dependent on the duration of the re-apply period in the preceding cycle, whereby the duration of the re-apply period 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 brake release period of that cycle so that the duration of the brake release and brake re-apply periods change in same sense.

REFERENCES:
patent: 4033634 (1977-07-01), Arai
patent: 4054328 (1977-10-01), Leiber

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