an integrated unit integrally composed of a hydraulic unit having mounted thereto plural hydraulic devices for controlling braking force imparted to wheels of a vehicle and an electronic control apparatus for controlling the plural hydraulic devices;

an actual-yaw-rate-corresponding-value sensor that is incorporated in the integrated unit and detects a yaw-rate-corresponding-value indicating a degree of a turn of the vehicle as an actual-yaw-rate-corresponding value; and

an actual-turning-angle-corresponding-value sensor that detects a turning-angle-corresponding-value corresponding to a turning angle of steerable wheels of the vehicle as an

actual-turning-angle-corresponding-value,

wherein the electronic control apparatus comprises:

yaw-rate-deviation-corresponding-value obtaining means that obtains a yaw-rate-deviation-corresponding-value, which represents a degree of instability relating to a turn of the vehicle, on the basis of a degree of a difference between a turning-angle-yaw-rate-corresponding-value, which is the yaw-rate-corresponding-value obtained based upon the detected actual-turning-angle-corresponding-value and to which a low-pass filter process is provided, and a value obtained by providing a low-pass filter process to the detected actual-yaw-rate-corresponding-value; and

vehicle stabilization control executing means that controls the plural hydraulic devices such that braking force for generating on the vehicle a yawing moment in the direction in which the

yaw-rate-deviation-corresponding-value becomes not more than a threshold value is imparted to a predetermined wheel, when the obtained yaw-rate-deviation-corresponding-value exceeds the threshold value.