초록 ▼

An anti-lock braking system for a four-wheel vehicle having a pair of left and right front wheels and a pair of left and right rear wheels in which one pair of wheels carries a greater load than the other, the system comprising a first braking pressure regulator operative to simultaneously reduce th

An anti-lock braking system for a four-wheel vehicle having a pair of left and right front wheels and a pair of left and right rear wheels in which one pair of wheels carries a greater load than the other, the system comprising a first braking pressure regulator operative to simultaneously reduce the braking pressures in a pair of wheel cylinders of the left and right front wheels in response to an anti-lock control pressure for the front wheels and a second braking pressure regulator operative to simultaneously reduce the braking pressures in a pair of wheel cylinders of the left and right rear wheels in response to an anti-lock control pressure for the rear wheels. A late-period operation type anti-lock control pressure supply device is associated with the pair of left and right wheels carrying the greater load to supply the anti-lock control pressure to the corresponding regulator upon detection of locking of a wheel later than the other in the pair of left and right wheels carrying the greater load. An early-period operation type anti-lock control pressure supply device is associated with the pair of left and right wheels carrying the lesser load to supply the anti-lock control pressure to the corresponding regulator upon detection of locking of at least one of the wheels in the pair of left and right wheels carrying the lesser load.

대표청구항 ▼

An anti-lock braking system for a four wheel vehicle having a pair of front left and right wheels and a pair or rear left and right wheels, each wheel having a respective brake cylinder for applying braking pressure to the wheel in response to pressure fluid supplied from a master cylinder, said ant

An anti-lock braking system for a four wheel vehicle having a pair of front left and right wheels and a pair or rear left and right wheels, each wheel having a respective brake cylinder for applying braking pressure to the wheel in response to pressure fluid supplied from a master cylinder, said anti-lock braking system comprising: first high-select type anti-lock control means associated with one pair of wheels for supplying a control pressure upon locking of one of said wheels of said one pair later than the other wheel of said one pair, second low-select type anti-lock control means associated with the other pair of wheels for supplying a control pressure upon locking of at least one of the wheels of said other pair, first regulating means coupled to one of said anti-lock control means for simultaneously controlling braking pressures in the wheel cylinders of the left and right front wheels in response to supply of control pressure from said one anti-lock control means, second regulating means coupled to the other of said anti-lock control means for simultaneously controlling braking pressure in the wheel cylinders of the left and right rear wheels in response to supply of control pressure from said other anti-lock control means, a dual hydraulic circuit arrangement including a first hydraulic circuit for supplying pressure fluid from said master cylinder via said first and second regulating means to one of the two front wheel cylinders and one of the two rear wheel cylinders and a second hydraulic circuit for supplying pressure fluid via said first and second regulating means to the other front wheel cylinder and the other rear wheel cylinder, fluid pressure control valve means in said first and second hydraulic circuits for controlling the pressure supplied to the front and rear wheel cylinders in proportion to load distribution on the front and rear wheels, and a second source of fluid pressure connected to said first and second regulating means respectively by said first and second anti-lock control means.