Patent ID: 6412882
Filing Date: 2002-07-02
Classification: B60K,B60L,B60T,B60W,Y02T,Y10S

Abstract:
A braking system for a vehicle having a wheel, comprising:a master cylinder including a cylinder housing, and a pressurizing piston which is fluid-tightly and slidably received in said cylinder housing and which cooperates with said cylinder housing to define a pressurizing chamber and an assisting chamber on respective front and rear sides of said pressurizing piston; a brake operating device including a brake operating member manually operable with a brake operating force to apply a pressurizing force based on said brake operating force to said pressurizing piston; a brake for braking said wheel; a wheel brake cylinder which is connected to said pressurizing piston of said master cylinder for activating said brake; a hydraulic pressure source operable to pressurize a working fluid; a reservoir; a first flow control device connected to said assisting chamber, said hydraulic pressure source and said reservoir, and operable to control flows of the fluid between said assisting chamber, said hydraulic pressure source and said reservoir; and a second flow control device connected to said pressurizing chamber, said hydraulic pressure source and said reservoir, and operable to control flows of the fluid between said pressurizing chamber, said hydraulic pressure source and said reservoir.