Patent ID: 11932224
Assignee: HITACHI ASTEMO, LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A brake control device, which is mounted on a brake system at least including a piston that moves in a linear motion direction by rotation of an electric motor, a brake pad that is pressed against a brake disc by the movement of the piston, and a position detection unit that detects a position of the piston, and controls a motion of the piston, comprising
a command calculation unit that calculates an operation command value for making a pressing force by which the brake pad is pressed against the brake disc reach a target thrust value,
wherein the command calculation unit includes:
a clearance command calculation unit that calculates a command value required for contact between the brake pad and the brake disc; and
a thrust command calculation unit that calculates a command value required for reaching a target thrust from a state where the brake pad and the brake disc are in contact with each other, and

the command calculation unit calculates the operation command value by integrating the command value calculated from the clearance command calculation unit and the command value calculated from the thrust command calculation unit when calculating the operation command value from a state where the brake pad and the brake disc are separated from each other.