Vehicle braking device

A vehicle braking device which applies braking force to a host vehicle, comprising:

• a master cylinder device which generates a primary hydraulic pressure according to a braking operation by a driver of the host vehicle;
• a motor cylinder device which generates a secondary hydraulic pressure according to target braking force by an operation of an electric actuator;
• a solenoid valve of a normally-open type which is provided in a hydraulic pressure passage providing communication between the master cylinder device and the motor cylinder device, and which operates to open or close the hydraulic pressure passage;
• and
• a control unit which performs drive control to close the solenoid valve in response to each pressure rise request, wherein
• requesters to issue the pressure rise requests include a first group requester in a first group which requires relatively high responsiveness and a second group requester in a second group which tolerates relatively low responsiveness, and
• when a pressure rise request is received from any one of the first group requester and the second group requester, the control unit sets a valve closing characteristic in course of closing the solenoid valve from a time of reception of the pressure rise request such that the valve closing characteristic for the pressure rise request issued by the second group requester is gentler than the valve closing characteristic for the pressure rise request issued by the first group requester.