Patent ID: 9002611
Filing Date: 2015-04-07
Classification: B60T

Abstract:
1. A vehicular brake hydraulic pressure control apparatus, comprising: control valve units for switching between communication and shut-off of a fluid path communicated from a hydraulic pressure source to a wheel brake and switching between communication and shut-off of a fluid path communicated from the wheel brake to a reservoir; and a control section for performing pitching reducing control to reduce occurrence of pitching on a vehicle caused by swinging of a weight, by controlling the control valve units to switch respective brake hydraulic pressures that act on the respective wheel brakes under a pressure decreasing state, a holding state, and a pressure increasing state, wherein the control section performs the pitching reducing control, based on a weight distribution ratio between front wheels and rear wheels during deceleration, and comprises: a distribution ratio calculating section for calculating the weight distribution ratio from deceleration of the vehicle detected from an acceleration sensor; a vehicle speed calculating section for calculating a vehicle speed; and a determining section for determining whether or not to perform the pitching reducing control, and wherein the determining section determines to perform the pitching reducing control in case that conditions are satisfied, the conditions including at least that: the calculated vehicle speed is lower than a predetermined speed at which pitching tends to occur; and braking operation is being performed.