초록 ▼

An anti-skid control apparatus for a vehicle having a brake system in which the front wheels are diagonally connected with the rear wheels, including a fluid pressure control valve device arranged between fluid pressure generating chambers of a tandem master cylinder and the wheel cylinders of the f

An anti-skid control apparatus for a vehicle having a brake system in which the front wheels are diagonally connected with the rear wheels, including a fluid pressure control valve device arranged between fluid pressure generating chambers of a tandem master cylinder and the wheel cylinders of the front wheels and a valve apparatus arranged between the wheel cylinder of the front wheels and those of the rear wheels. Fluid pressure is supplied to the rear wheels in accordance with the lower one of the brake fluid pressure onf the front wheels controlled by the fluid pressure control valve devices. The measuring or judging results of the skid conditions of the front and rear wheels on the same side of the vehicle are logically combined with each other to control the fluid pressure control valve devices.

대표청구항 ▼

In an anti-skid control apparatus for a vehicle braking system including: (a) a pair of front wheels and a pair of rear wheels, each of said wheels having a wheel cylinder associated therewith wherein said wheel cylinders are diagonally connected by conduits. (b) a tandem master cylinder having firs

In an anti-skid control apparatus for a vehicle braking system including: (a) a pair of front wheels and a pair of rear wheels, each of said wheels having a wheel cylinder associated therewith wherein said wheel cylinders are diagonally connected by conduits. (b) a tandem master cylinder having first and second fluid pressure generating chambers; (c) a first fluid pressure control valve means for controlling the brake fluid pressure of the wheel cylinder of one of the front wheels, the first means arranged between the first fluid pressure generating chamber of the tandem master cylinder and the wheel cylinder of the one front wheel; (d) a second fluid pressure control valve means for controlling the brake fluid pressure of the wheel cylinder of the other of said front wheels, arranged between the second fluid pressure generating chamber of said tandem master cylinder and the wheel cylinder of the other front wheel; (e) a control means for judging the skid conditions of said front and rear wheels and for generating instructions for controlling said first and second fluid pressure control valve means, said control means including judge circuit means for receiving the wheel speed signals of said front and rear wheels, respectively, and for judging the skid conditions of said front and rear wheels and generating brake pressure control signals for the respective wheels; and (f) a valve apparatus arranged between said wheel cylinders of the front wheels and the wheel cylinders of the rear wheels including a piston means receiving the output pressures of said first and second fluid pressure control valve means and movable by the difference between said output pressures, and a pair of valves able to open and close with the movement of said piston means, and generating a fluid pressure in relation with the lower one of said output pressures; the improvements in which said control means further comprises logic circuit means for combining logically the brake pressure control signal as the judging result of the skid condition of the one front wheel with that of the rear wheel located at the same side of the road as said one front wheel, for generating the instructions for controlling said first fluid pressure control valve means, and for combining logically the brake pressure control signal as the judging result of the skid condition of the other front wheel with that of the rear wheel located at the same side of the road as said other front wheel for generating the instruction for controlling said second fluid pressure control valve means.