Patent ID: 6082832
Filing Date: 2000-07-04
Classification: B60T,Y10S

Abstract:
A hydraulic braking system comprising:a source of pressurized fluid;a first wheel brake cylinder connected to said source of pressurized fluid through a hydraulic conduit;a second wheel brake cylinder connected to said source of pressurized fluid through a hydraulic conduit;a first inlet valve connected between said source of pressurized fluid and said first wheel brake cylinder for selectively controlling the fluid pressure to said first wheel brake cylinder;a second inlet valve connected between said source of pressurized fluid and said second wheel brake cylinder for selectively controlling the fluid pressure to said second wheel brake cylinder;a switching valve connected between said source of pressurized fluid and said first and second inlet valves for selectively controlling fluid from and to the source of pressurized fluid;a first return conduit connected between said first wheel brake cylinder and said pressurized fluid source;a second return conduit connected between said second wheel brake cylinder and said pressurized fluid source;a dump valve connected to said first and second return conduits, said dump valve switchable between a first position for preventing fluid flow from said first and second wheel brake cylinders to said pressurized fluid source and a second position for allowing fluid to flow from said first and second wheel brake cylinders to said pressurized fluid source;a first check valve disposed in said first return conduit for preventing fluid flow from said second wheel brake cylinder to said first wheel brake cylinder;a second check valve disposed in said second return conduit for preventing fluid flow from said first wheel brake cylinder to said second wheel brake cylinder;a first restrictor disposed in said first return conduit between said dump valve and said first wheel brake cylinder; anda second restrictor disposed in said second return conduit between said dump valve and said second wheel brake cylinder.