Patent ID: 7055916

Claim:
A brake hydraulic pressure control apparatus for a vehicle comprising: a pressure-increasing valve interposed in a hydraulic circuit between a wheel cylinder and a master cylinder which generates brake hydraulic pressure in accordance with brake operation by a driver; a pressure-reducing valve interposed in a hydraulic circuit between the wheel cylinder and a reservoir; hydraulic pressure control means for controlling brake hydraulic pressure within the wheel cylinder through control of the pressure-increasing valve and the pressure-reducing valve; a hydraulic pump for pumping brake fluid that flows from the wheel cylinder to the reservoir via the pressure-reducing valve and returning the pumped brake fluid to a hydraulic circuit between the master cylinder and the pressure-increasing valve; pump drive means for driving the hydraulic pump in accordance with a state of the vehicle; and communication control means for performing communication control adapted to open both the pressure-increasing valve and the pressure-reducing valve over a predetermined period of time when the vehicle is in a predetermined state which indicates that the driver does not have an intention of performing the brake operation, wherein the communication control means is configured to change the predetermined time, over which the communication control is performed, in accordance with a total drive time of the hydraulic pump as measured from a point in time at which previously performed communication control has ended.