Vehicle brake system

Details Vehicle brake system Vehicle brake system

1985-05-20

1986-09-09

Stoner, Jr., Bruce H.

Fluid-pressure and analogous brake systems

Pipeless valves

303100, 303114, 60545, 91519, 92 49, 180282, B60T 874

Patent

active

046104836

ABSTRACT:
In a vehicle brake system including a pneumatic force multiplier apparatus in which a power piston moves by virtue of a pressure difference between atmospheric and negative pressure, a manual brake switch is provided to apply braking force without need for depressing the brake pedal. A controller includes a deceleration calculating circuit reading vehicle speed for every specified number of seconds and calculating the amount of deceleration. The deceleration is compared with a predetermined value and braking force is increased, maintained, or decreased depending on whether the vehicle is running on a downwardly sloping, level, or unwardly sloping road.

REFERENCES:
patent: 2978080 (1961-04-01), Beatty
patent: 3630579 (1971-12-01), Rodi
patent: 4057301 (1977-11-01), Foster
patent: 4494445 (1985-01-01), Furuta et al.

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