초록 ▼

A vehicle anti-lock braking system having a master cylinder operated upon operation of a brake operating member, a wheel cylinder activated by a pressure produced by the master cylinder, and an anti-lock control device which includes a slip ratio detector for detecting a slip ratio of a drive wheel

A vehicle anti-lock braking system having a master cylinder operated upon operation of a brake operating member, a wheel cylinder activated by a pressure produced by the master cylinder, and an anti-lock control device which includes a slip ratio detector for detecting a slip ratio of a drive wheel of the vehicle, and a pressure regulating device for controlling a pressure in the wheel cylinder, so as to maintain the slip ratio in an optimum range. The system also has a traction control device including a traction control power source, and a communication switching device for selective communication of the pressure regulating device with the traction control power source or the master cylinder. The switching device maintains a discharge port of the pressure regulating device in communication with a reservoir while the traction control power source is in communication with the pressure regulating device, and disconnects the discharge port from the reservoir while the master cylinder is in communication with the pressure regulating device.

대표청구항 ▼

An anti-lock braking system with a traction control function for a vehicle, comprising: a hydraulically operated brake device including a master cylinder which produces a braking pressure in response to an operation of a brake operating member, and a wheel cylinder activated by the produced braking

An anti-lock braking system with a traction control function for a vehicle, comprising: a hydraulically operated brake device including a master cylinder which produces a braking pressure in response to an operation of a brake operating member, and a wheel cylinder activated by the produced braking pressure to apply brake to a drive wheel of the vehicle; an anti-lock control means including slip ratio detecting means for detecting a slip ratio of said drive wheel and a pressure regulating device for controlling a fluid pressure in said wheel cylinder, so as to maintain said slip ratio below a predetermined upper limit; traction control means including a traction control power source which has a pump and an accumulator, and further including a communication switching device comprising first means for providing selective fluid communication of said pressure regulating device with said traction control power source or said master cylinder; said communication switching device further comprising second means for maintaining a discharge port of said pressure regulating device in communication with a reservoir whenever said traction control power source is held in communication with said pressure regulating device and for disconnecting said discharge port from said reservoir while said master cylinder is held in communication with said pressure regulating device.