Patent ID: 8104589

Claim:
An electro-hydraulic brake actuator for a vehicle brake having a default brake engagement position, the actuator comprising: an electric motor configured to operate at about 28 Vdc, the motor further configured to operate at about 2 Amps to maintain a vehicle brake in a disengaged position; and a hydraulic master piston operatively coupled to the electric motor, the hydraulic master piston configured to slidingly move within a master cylinder fillable with a hydraulic fluid such that advancement of the master piston within the master cylinder varies the hydraulic pressure supplied to the vehicle brake, wherein the hydraulic piston is operatively coupled to the motor via a gear train mechanism coupled to a lead screw and a shaft of the motor, wherein the motor is configured to rotate the shaft to rotate one or more gears of the gear train, which in turn rotates the lead screw thereby causing the hydraulic master piston to move within the master cylinder.