Motor vehicle brake which can be activated electromechanically and hydraulically and has optional self-locking
AssigneeLucas Automotive GmbH
InventorsBenedikt Ohlig, Gregor Poertzgen
Life of this patent
Estimating the term…
Abstract
A motor vehicle brake, in particular a motor vehicle brake which can be activated in a combined fashion both hydraulically and electromechanically, having an actuator assembly comprising a housing, an actuator element which can be moved relative to the housing in order to move a brake lining hydraulically or electromechanically, a motor-operated drive, a movement mechanism arranged between the motor-operated drive and the movable actuator element, a gear arrangement assigned to the movement mechanism, and a separate self-locking device which is designed to block the movement mechanism when necessary and is integrated into the motor-operated drive.
Claims9
A combined hydraulically and electromechanically operable automotive vehicle brake, with an actuator module, comprising:
- a housing,
- an actuator movable relative to the housing in order to hydraulically or electromechanically move a brake lining,
- a motor drive,
- a moving assembly arranged between the motor drive and the movable actuator,
- a gear arrangement associated with the moving assembly, and
- a separate self-locking device, which is designed to block the moving assembly on demand,
- wherein the moving assembly has a ball screw arrangement with a spindle and a nut, and
- wherein one of the components, the spindle and the nut, is rotatably driven, and the respective other one of the components, the spindle and the nut, is linearly movable for moving the actuator by rotatably driving one of the components, the spindle and the nut inside the housing,
- wherein the self-locking device is integrated into the motor drive;
- and
- wherein the self-locking device is prestressed by means of a spring mechanism into a state in which the self-locking device blocks a displacement mechanism.
A combined hydraulically and electromechanically operable automotive vehicle brake, with an actuator module, comprising:
- a housing,
- an actuator movable relative to the housing in order to hydraulically or electromechanically move a brake lining,
- a motor drive,
- a moving assembly arranged between the motor drive and the movable actuator,
- a gear arrangement associated with the moving assembly, and
- a separate self-locking device, which is designed to block the moving assembly on demand,
- wherein the moving assembly has a ball screw arrangement with a spindle and a nut, and
- wherein one of the components, the spindle and the nut, is rotatably driven, and the respective other one of the components, the spindle and the nut, is linearly movable for moving the actuator by rotatably driving one of the components, the spindle and the nut inside the housing,
- wherein the self-locking device is integrated into the motor drive;
- and
- wherein an output shaft of the motor drive is mounted rotatably and axially displaceably, wherein the self-locking device can be switched back and forth between a locking state and a non-locking state in accordance with the energization of the motor drive by axial displacement of the output shaft.
Dependencies are inferred from the claim text.