Electronic wheel slip sensor for vehicle brake systems

Details Electronic wheel slip sensor for vehicle brake systems Electronic wheel slip sensor for vehicle brake systems

1984-11-01

1987-01-06

Crosland, Donnie L.

Communications: electrical

Selective

Having indication or alarm

340 52B, 340669, 340672, 180197, 303 94, 303 96, 303 98, B60Q 100, B60T 872

Patent

active

046350314

ABSTRACT:
This invention relates to an electronic sensor for determining the start time and duration of the brake relief phase in brake force modulation cycles in vehicles with so-called anti-lock brake systems. A tachometer detects the rotation speed of the wheels. A signal from the tachometer is compared to a reference signal from a reference value generator. A switch is controlled by an output signal from the comparator and in turn controls a brake force reduction operation of a brake force modulator. The slope of the reference signal may be controlled by a vehicle operating condition such as the modulated brake force.

REFERENCES:
patent: 3776357 (1973-12-01), Arai et al.
patent: 3912337 (1975-10-01), Ochiai
patent: 3995912 (1976-12-01), McNinch, Jr. et al.
patent: 4233599 (1980-11-01), Brearley
patent: 4347569 (1982-08-01), Allen, Jr. et al.
patent: 4349233 (1982-09-01), Bullard et al.
patent: 4410947 (1983-10-01), Strong et al.

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