초록 ▼

A brake control device for vehicles includes a master cylinder, a wheel cylinder connected to the master cylinder for braking operation, an anti-skid brake control circuit disposed between the master and wheel cylinders and including pump as a power source. The brake control device further includes

A brake control device for vehicles includes a master cylinder, a wheel cylinder connected to the master cylinder for braking operation, an anti-skid brake control circuit disposed between the master and wheel cylinders and including pump as a power source. The brake control device further includes a traction control circuit disposed between the anti-skid brake control circuit and the master cylinder and including a valve having a first mode wherein the master cylinder and the wheel cylinder are in communication without the pump and a second mode wherein the master cylinder and the wheel cylinder are in communication with the pump, and a change over member is provided for changing the modes of the valve.

대표청구항 ▼

A brake control device for a vehicle wheel, comprising: a pedal-actuated master cylinder having an outlet, a wheel cylinder for braking the vehicle wheel, first valve means having an outlet, and an inlet communicating with said master cylinder outlet, and an outlet, first fluid conduit means extendi

A brake control device for a vehicle wheel, comprising: a pedal-actuated master cylinder having an outlet, a wheel cylinder for braking the vehicle wheel, first valve means having an outlet, and an inlet communicating with said master cylinder outlet, and an outlet, first fluid conduit means extending from said first valve means to said wheel cylinder, a fluid pump having an inlet and an outlet, second fluid conduit means extending from said first valve means to said pump inlet, second valve means disposed in said first fluid conduit means and having an inlet and an outlet, said pump outlet communicating with said inlet of said second valve means, shifting means for shifting said first valve means between: (a) an anti-skid braking position in which said outlet of said first valve means communicates with said inlet of said second valve means through said first fluid conduit means, and (b) a traction control position in which said outlet of said first valve means communicates with said pump inlet through said second fluid conduit means, and for shifting said second valve means between (c) a pressure-applying position in which said inlet of said second valve means communicates with said wheel cylinder, and (d) a pressure-relieving position in which said wheel cylinder communicates with said pump inlet, relief conduit means for conducting fluid from said pump outlet to said master cylinder when a pump outlet pressure exceeds a master cylinder pressure by a predetermined value, sensing means for sensing skidding and slipping conditions of the vehicle wheel, and control means operably connected to said sensing means for causing said second valve means to be selectively shifted between said pressure-applying and pressure-relieving positions in response to sensed skidding conditions of the vehicle wheel, and for causing said first valve means to be shifted between said anti-skid braking position and said traction control position in response to sensed slipping conditions of the vehicle wheel.