Patent ID: 6692087
Filing Date: 2004-02-17
Classification: B60T,Y10S

Abstract:
An actuating unit for a wheel brake of a motor vehicle, comprising:an electric motor; a hydraulic pump drivable with variable speed by the electric motor; an element located between a delivery side and an intake side of the hydraulic pump and for adjusting a pressurized-media return flow; a cylinder-piston unit connected to the hydraulic pump on the delivery side, by which at least one brake lining is able to be pressed against a friction element connected to one vehicle wheel and lifted off therefrom; and a control device by which an electric brake request signal is able to be processed and by which the electric motor and the element for adjusting the pressurized-media return flow are controllable, wherein: the cylinder-piston unit includes a piston having identical surfaces on both sides and a cylinder having cylinder chambers arranged on both sides of the piston, and the intake side of the hydraulic pump is connected to the cylinder chamber on a brake-lining side.