Electric brake device

An electric brake device comprising:

• a brake rotor;
• a friction member configured to be brought into contact with the brake rotor;
• a friction member contactor configured to bring the friction member into contact with the brake rotor;
• an electric motor configured to drive the friction member contactor;
• a braking force estimation unit configured to obtain an estimated value of a braking force generated by the friction member being pressed against the brake rotor;
• and
• a control device configured to control the electric motor to perform a follow-up control of the braking force with respect to a target braking force, wherein
• the control device has a control system in which a motor rotation angle of the electric motor is included in a state quantity in a control computing of the follow-up control, and
• the control device includes a state quantity reset function unit that resets at least the motor rotation angle to a predetermined value, on the basis of a predetermined condition using at least one of the target braking force, the estimated value of the braking force, an amount of change of the target braking force, an amount of change of the estimated value of the braking force, and a deviation between the target braking force and the estimated value of the braking force.