Patent ID: 6170921
Filing Date: 2001-01-09
Classification: B60T,F16D,Y10S

Abstract:
A brake system, comprising:a brake cylinder operatively connected to a brake attached to a wheel of a vehicle for applying a braking force to the wheel;a first accumulator operably connected to an input of said brake cylinder, said first accumulator for storing a fluid to actuate said brake cylinder;a second accumulator operably connected to an output of said brake cylinder, said second accumulator receiving said fluid from said brake cylinder;a magnetostrictive pump connected to said first accumulator and said second accumulator, said pump actuatable to transfer said fluid from said second accumulator to said first accumulator;a valve for selective communication between said first accumulator and said brake cylinder; anda local brake controller to actuate said pump assembly such that said pump assembly substantially maintains said fluid in said first accumulator at a predefined pressure, and to control said valve such that said fluid from said first accumulator is available to actuate said brake cylinder.