Brake control system
AssigneeAisin Seiki Kabushiki Kaisha
InventorHiroaki Takeuchi
Life of this patent
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Abstract
A brake control system comprises a simulator (4) for disconnecting a master cylinder (1) from a wheel cylinder (3) to vary the volume of the master cylinder in response to output pressure from the master cylinder when a brake is applied, and a wheel cylinder pressure control device (10) for controlling pressure supplied to the wheel cylinder. The wheel cylinder pressure control device includes a first pressure chamber (23) connected to the wheel cylinder, and a pressure control piston (18) for varying the volume of the first pressure chamber.
Claims8
A brake control system for automatically controlling a wheel cylinder pressure comprising:
- a master cylinder for generating an operating fluid pressure in accordance with a brake pedal pressure applied by a brake pedal operatively connected to said master cylinder;
- a wheel cylinder adapted to be mounted on a wheel;
- wheel cylinder pressure control means operatively connected between said master cylinder and said wheel cylinder;
- simulation means operatively connected between said wheel pressure control means and said master cylinder for applying a reaction force to said brake pedal and including a cut-off valve for disconnecting said master cylinder from said wheel cylinder pressure control means;
- pressure sensor means for sensing brake pedal pressure;
- speed sensor means for sensing speed of rotation of said wheel;
- and
- control means for controlling said wheel pressure control means in accordance with one of said brake pedal pressure and said speed of rotation of said wheel.
Dependencies are inferred from the claim text.