Electrical brake actuator has gripping element movable by motor against restoring force, lockable in position where no force exerted on wheel brake, restoring force acts on clamping device

摘要

The actuator has a clamping device (40, 30) actuated by an electric motor exerting a force on a wheel brake according to an electrical signal and an integral parking brake lockable by a parking brake torque with a gripping element (40) movable by the motor against a restoring force (50) and lockable in a position in which it exerts no force on the wheel brake. In this parking brake position the restoring force acts on the clamping device.