Protecting ABS skid detection against data corruption

Details Protecting ABS skid detection against data corruption Protecting ABS skid detection against data corruption

1995-01-30

1996-09-17

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Speed-controlled

Previously stored wheel speed information

303171, 303187, B60T 834

Patent

active

055561772

ABSTRACT:
An ABS skid detection protection system for a wheeled vehicle detects a predetermined level of deceleration at a wheel; detects, memorizers and holds for a prescribed period the wheel speed value at that predetermined deceleration level; detects whether the angular acceleration of the monitored wheel first falls below and then re-establishes the predetermined deceleration level within the prescribed level; and corrects the memorizsed value of wheel speed by subtracting from it an amount equal to the vehicle deceleration multiplied by either the elapsed time since the wheel speed value was memorized or the elapsed time since the initiation of a short-duration pulse by which the actuating pressure applied to a brake can be temporarily dumped upon detection of the predetermined level of deceleration of the wheel.

REFERENCES:
patent: 4674049 (1987-06-01), Kubo
patent: 5335178 (1994-08-01), Schafer et al.

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