Compensating circuit arrangement in a wheel anti-skid brake cont

Details Compensating circuit arrangement in a wheel anti-skid brake cont Compensating circuit arrangement in a wheel anti-skid brake cont

1976-10-18

1978-02-07

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Pipeless valves

324160, 361240, 364424, B60T 802

Patent

active

040723640

ABSTRACT:
In an anti-skid brake control system for a wheeled vehicle, an electronic circuit for generating a wheel speed signal in accordance with the time duration of a half cycle of a sinusoidal waveform generated by a sensor that detects the presence or absence of teeth of a rotor that revolves with a wheel of the vehicle is arranged so that the measured time duration of both a positive and a negative alternation of the waveform is utilized to obtain accurate wheel skid control at relatively low speeds. Slight differences in the measured time duration of a positive and negative half cycle due to slight variations in the dimensions of a tooth and adjacent space are sensed and modified as required to assure correspondence between the measured time durations in order to avoid false sensing of a wheel skid condition.

REFERENCES:
patent: 3757167 (1973-09-01), Yoshikawa
patent: 3937525 (1976-02-01), Luhdorff

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