| 摘要 |
Provided is an electric brake device that can achieve improved control accuracy without involving a cost increase. The electric brake device includes an electric motor (2), a brake rotor (5), a friction pad (6), a transmission mechanism (4), a braking force command section (26a), a braking force estimation section (30), a motor rotation angle detector (28), and a controller (7). The motor rotation angle detector (28), which is used in a partial region of a braking force from a minimum braking force to a maximum braking force, has a higher resolution than a motor rotation angle that causes a braking force fluctuation equivalent to a minimum braking force resolution of the braking force estimation section (30). The controller (7) includes a resolution interpolation section (37) configured to interpolate, by using a motor rotation angle detected by the motor rotation angle detector (28), a minimum resolution of the braking force obtained by the braking force estimation section (30). |
