| 摘要 |
<p>Brake actuating unit (1 1 ) for a motor vehicle brake system of the "brake by wire" type having a housing (10) a first hydraulic cylinder/piston arrangement (3) with an actuating piston which is displaceably guided in the housing (10) and delimits a hydraulic pressure chamber to which wheel brakes of the motor vehicle can be connected wherein the actuating piston can be actuated by means of a push rod (2) which transmits actuating forces the brake actuating unit further having an electrically controllable pressure supplying device (6) which is designed as a second hydraulic cylinder/piston arrangement (12) the piston of which can be displaced by an electric motor (7) by means of a rotational/translational gear mechanism (9) and a valve arrangement (4) including a number of valves (41 42 43) for setting wheel individual brake pressures and for disconnecting or connecting the wheel brakes from/to the first cylinder/piston arrangement (3) or from/to the pressure supplying device (6) wherein the valve arrangement (4) and the pressure supplying device (6) are arranged at least partially within the housing (10) and wherein the axis of the electric motor (7) of the pressure supplying device (6) is arranged substantially perpendicular to the longitudinal axis (30) of the first cylinder/piston arrangement (3).</p> |
