Brake control apparatus and process

Details Brake control apparatus and process Brake control apparatus and process

2008-10-07

2011-10-04

Williams, Thomas J (Department: 3657)

Fluid-pressure and analogous brake systems

Speed-controlled

Braking pressure demand or braking force desire

C303S116100, C701S078000

Reexamination Certificate

active

08029075

ABSTRACT:
A brake control apparatus includes a fluid pressure sensor to sense an actual master cylinder pressure, a pump to suck a brake fluid from the master cylinder through a hydraulic circuit connecting the master cylinder to a wheel cylinder and a controller to perform a brake assist control to supply a discharge pressure of the pump to the wheel cylinder in accordance with the sensed actual master cylinder pressure signal. The controller calculates a modified master cylinder pressure by modifying the actual master cylinder pressure in accordance with an operating condition of the pump, calculates a base pressure in accordance with a variation of the modified master cylinder pressure, and calculates a target wheel cylinder pressure in accordance with the base pressure, to control a braking force by controlling an actual wheel cylinder pressure of the wheel cylinder in accordance with the target wheel cylinder pressure.

REFERENCES:
patent: 2010/0222978 (2010-09-01), Kodama et al.
patent: 0 928 730 (1999-07-01), None
patent: 11-020638 (1999-01-01), None

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