초록 ▼

An anti-skid control apparatus for a vehicle braking system in which front and rear wheels are diagonally connected, includes fluid pressure control valve devices arranged between fluid pressure generating chambers of a tandem master cylinder and brake apparatus for supplying a fluid pressure in acc

An anti-skid control apparatus for a vehicle braking system in which front and rear wheels are diagonally connected, includes fluid pressure control valve devices arranged between fluid pressure generating chambers of a tandem master cylinder and brake apparatus for supplying a fluid pressure in accordance with the lower one of the brake fluid pressures of the front wheels controlled by the fluid pressure control valve devices. A control unit discriminates the side of the road having the lower frictional coefficient. The control signals of the front and rear wheels on the discriminated frictionally lower side of the road are combined logically with each other to control the first or second fluid pressure control valve devices so that the brake fluid pressures of the front and rear wheels on the frictionally lower side of the road and of the rear wheel on the frictionally higher of the road side are controlled. Also, the second or first fluid pressure control valve devices is controlled for independently controlling the brake fluid pressure of the front wheel on the frictionally higher side of the road.

대표청구항 ▼

An anti-skid control apparatus for a vehicle braking system, including: (A) A pair of front wheels and a pair of rear wheels each having a wheel cylinder, a brake and a wheel speed sensor associated therewith; (B) a tandem master cylinder having first and second fluid pressure generating chambers; (

An anti-skid control apparatus for a vehicle braking system, including: (A) A pair of front wheels and a pair of rear wheels each having a wheel cylinder, a brake and a wheel speed sensor associated therewith; (B) a tandem master cylinder having first and second fluid pressure generating chambers; (C) a first fluid pressure control valve device for controlling the brake fluid pressure of the wheel cylinder of one of said pair of front wheels, said first fluid pressure control valve being arranged between said first fluid pressure generating chamber of the tandem master cylinder and the wheel cylinder of said one of said pair of front wheels; (D) a second fluid pressure control valve device for controlling the brake fluid pressure of the wheel cylinder of the other one of said pair of front wheels, said second fluid pressure control valve being arranged between said second fluid pressure generating chamber of the tandem master cylinder and the wheel cylinder of said other one of said pair of front wheels; (E) a control means for receiving outputs of said wheel speed sensors, for measuring or judging the skid conditions of said front and rear wheels, and for generating instructions to control said first and second fluid pressure contol valve devices; and (F) a valve means, arranged between the wheel cylinders of said front wheels and the wheel cylinders of said rear wheels, for generating a fluid pressure in accordance with the lower one of the brake fluid pressures of said front wheels controlled by said first and second fluid pressure control valve devices, wherein said control means includes: means for discriminating betwen the frictionally lower one of the sides of the road on which said whels are running on the basis of the outputs of said wheel speed sensors, means for combining logically the measuring or judging result of the skid condition of the rear wheel running on said frictionally lower side of the road with that of the front wheel running on the same frictionally lower side of the road, means for generating the instruction for controlling said first fluid pressure control valve device or said second fluid pressure control valve device, and for generating the instruction for controlling said second fluid pressure control valve device or said first fluid pressure control valve device on the basis of the measuring or judging result of the skid condition of the front wheel, independently of that of said rear wheels.