Patent ID: 8069962
Filing Date: 2011-12-06
Classification: F16D

Abstract:
1. An electromechanical brake comprising an element to be decelerated, at least one friction lining for frictional engagement with the element to be decelerated, an electric actuator for moving the friction lining into frictional engagement with the element to be decelerated, a reversible accumulator operatively linked to the electric actuator and acting in conjunction with a force multiplication device such that when the brake is applied by means of the actuator, the energy stored in the accumulator is successively delivered to the force multiplication device as the actuator travel increases in a braking direction and is applied to a moment arm to create an actuating torque which is transmitted to the friction lining, the moment arm increases as the actuator travel increases in the braking direction such that the actuating torque created by the application of the accumulator energy to the moment arm increases in a predefined manner as the actuator travel increases in the braking direction, and that when the brake is released, a brake-inherent restoring force retroacting on the force multiplication device via the friction lining recharges the accumulator.