Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1976-07-07
1977-07-19
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188151A, 303114, 303115, 303119, B60T 802
Patent
active
040365344
ABSTRACT:
In a hydraulic brake system of the type having a master cylinder, rear wheel brakes, an actuator disposed between the master cylinder and the rear wheel brakes for controlling the brake pressure increase to be applied to the rear wheel brakes in accordance with the skidding condition of a vehicle wheel, control apparatus for applying a brake pressure increase controlling signal to the actuator, a hydraulic brake booster for operating the master cylinder in accordance with the brake pedal depression, a pressure power source for supplying power pressure to the booster and having the actuating pressure for the hydraulic brake booster utilized as the actuating pressure for the actuator, the improvement comprises the inter-position of a regulating device between the booster and the actuator for increasing the output pressure at the same ratio as the input pressure while the actuating pressure is below a predetermined value and for increasing the output pressure at a smaller ratio than the input pressure when the input pressure gets above the predetermined value and a piston arrangement for opening an on-off valve of the actuator for controlling the communication between the master cylinder and the rear wheel brakes when the input pressure to the actuator, that is, the output pressure of the regulating device, is below a predetermined value to increase the output pressure of the actuator at the same ratio as the input pressure and for repeating the on-off movement of the on-off valve when the input pressure of the actuator is more than the predetermined value thereby increasing the output pressure of the actuator at a smaller ratio than the input pressure thereto.
REFERENCES:
patent: 3666328 (1972-05-01), Williams
patent: 3671085 (1972-06-01), Pasek et al.
patent: 3813130 (1974-05-01), Inada
patent: 3872885 (1975-03-01), Eloi et al.
patent: 3881780 (1975-05-01), Nyunoya
patent: 3910640 (1975-10-01), Kozakai et al.
Kondo Toshiyuki
Nagashima Takashi
Aisin Seiki Kabushiki Kaisha
Blix Trygve M.
Butler Douglas C.
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