Electric brake device

An electric brake device, comprising:

• an electric brake mechanism in which a piston propelled by a rotation-linear motion mechanism driven by an electric motor is configured to press a braking member against a braked member, and to hold the braking member at a pressing position by stopping the electric motor;
• and
• a control unit configured to control the electric motor,
• wherein the control unit is configured
• to determine, when a request to hold the braking member is made, a judgment threshold value for judging whether a rotational position of the electric motor has arrived at a position at which holding of the braking member is complete, the judgment threshold value being determined based on a current change over time of a current value of the electric motor and based on a difference between a motor rotation amount in a normal state and a predicted value of a motor rotation amount, the normal state being a state in which the current value of the electric motor increases linearly, and
• to judge, when the judgment threshold value is reached, whether the holding of the braking member is complete.