Brake apparatus for vehicle

A brake system for a vehicle, comprising:

• a fluid storage unit;
• a fluid pressing unit;
• a plurality of wheel brakes configured to apply a braking force to the vehicle;
• and
• at least one 3-way solenoid valve configured to selectively interconnect the fluid storage unit, the fluid pressing unit and the plurality of wheel brakes,
• wherein the at least one 3-way solenoid valve comprises:
• first, second and third ports;
• an armature to which an electromagnetic force is applied;
• a first body having a first hollow and a portion facing the armature;
• a second body having a second hollow and having a portion facing the first body;
• a plunger having a portion extending into the first hollow of the first body and the second hollow of the second body, having a first end adjoining the armature, and configured to move when the first end is pressed by the armature;
• a first opening/closing flow passage configured to selectively allow a fluid flow between the first port and the second port;
• and
• a second opening/closing flow passage configured to selectively allow a fluid flow between the second port and the third port.