Automobile braking force control apparatus

Details Automobile braking force control apparatus Automobile braking force control apparatus

1985-11-22

1987-09-15

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

60566, 60579, 303 92, 303114, B60T 800

Patent

active

046935215

ABSTRACT:
An automobile braking force control apparatus controls braking forces on some or all of the wheels individually or in groups. The operating force from a brake pedal (2) is converted into a hydraulic pressure by a master cylinder (3). This converted hydraulic pressure acts on the pistons of actuators (7a, 7b, 7c, 7d) disposed in operating channels (6a, 6b, 6c, 6d) leading to some or all of the wheels taken individually or in groups. The braking force on the wheels vary with the movements of the pistons. Auxiliary power circuits (8a, 8b, 8c, 8d, 9a, 9b, 9c, 9d) are provided for enabling hydraulic pressure from an auxiliary power source (12) to act on the pistons of the actuators (7a, 7b, 7c, 7d). Control valves (10a, 10b, 10c, 10d) controled by an electronic control device (13) are disposed in auxiliary power circuits. In addition to the hydraulic pressure from the master cylinder (3), the pistons of the actuators (7a, 7b, 7c, 7d) are acted on by the auxiliary hydraulic pressures from the auxiliary power source (12) in both positive and negative directions, after these pressures have been controlled to suitable magnitudes by the control valves (10a, 10b, 10c, 10d).

REFERENCES:
patent: 3756666 (1973-09-01), Leiber
patent: 3999808 (1976-12-01), Belart
Japanese Patent Application Laid-Open No. 39876/1972.
Japanese Patent Application 182997/1984.

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