Apparatus and method for initializing of electromechanical brake

摘要

An apparatus for initializing an electromechanical brake (EMB) may include: a solenoid valve for transmitting oil pressure generated through a manipulation force for a brake pedal; a piston unit for pressurizing a brake disk through at least one of the oil pressure transmitted through the solenoid valve and power generated by a motor; and an electronic control unit for controlling at least one of the oil pressure transmitted through the solenoid valve and the power transmitted by the motor to control advance and retreat of pistons included in the piston unit and adjust a braking force of the brake, wherein when the brake system is initialized, the electronic control unit retreats and depressurizes the pistons when a vehicle is in a parking brake state, and advances and pressurizes the pistons in case where the vehicle is not in a parking brake state.

主权项

1. An apparatus comprising an electromechanical brake (EMB) of a vehicle, the apparatus comprising:
a master cylinder operably connected to a brake pedal and configured for generating oil pressure in response to external force applied to the brake pedal; a brake mechanism configured for pressurizing a brake disk and comprising at least one piston and a motor; a valve configured for selectively transmitting the oil pressure generated in the master cylinder to the brake mechanism to force the at least one piston for pressurizing the brake disk; an electronic control unit for generating an oil pressure signal based on the oil pressure generated in the master cylinder for controlling the motor to move the at least one piston for pressurizing the brake disk; and wherein the electronic control unit is further configured to generate piston initialization signals for controlling the motor to advance and retreat the at least one piston relative to the brake disk, wherein in response to starting of the vehicle, when the vehicle is in a parking brake state, the electronic control unit is configured to generate a first piston initialization signal for retreating the at least one piston that depressurizes the brake disk, wherein further in response to starting of the vehicle, when the vehicle is not in a parking brake state, the electronic control unit is configured to generate a second piston initialization signal for advancing the at least one piston that pressurizes the brake disk.