Patent ID: 8876224

Claim:
A vehicular brake fluid pressure control apparatus comprising: plural normally open electromagnetic valves and plural normally closed electromagnetic valves which are disposed so as to correspond to plural wheel brakes; and a control unit which controls fluid pressures transmitted to the wheel brakes by controlling drive currents applied to at least part of the electromagnetic valves according to plural different fluid pressure control modes, wherein the control unit controls the at least part of the normally closed electromagnetic valves while switching, according to the current fluid pressure control mode, between a responsivity priority control in which drive currents applied to the at least part of the normally closed electromagnetic valves are increased to a target current value instantaneously at a first slope, the target current value being larger than an upper limit of a prescribed operating current range in which the normally closed electromagnetic valves are supposed to be opened; a silence priority control in which the drive currents applied to the at least part of the normally closed electromagnetic valves are increased at a second slope which is gentler than the first slope; and an intermediate control in which the drive currents applied to the at least part of the normally closed electromagnetic valves are increased at a third slope which is gentler than the first slope and steeper than the second slope, in the silence priority control, the control unit increases the drive currents gradually at the second slope in the prescribed operating current range and increases the drive currents instantaneously from a state where the drive currents do not flow to a lower limit of the prescribed operating current range and from the upper limit of the prescribed operating current range to the target current value, and in the intermediate control, the control unit increases the drive currents gradually at the third slope in the prescribed operating current range and increases the drive currents instantaneously from the state where the drive currents do not flow to the lower limit of the prescribed operating current range and from the upper limit of the prescribed operating current range to the target current value.