Actuating Device for a Brake-By-Wire Brake System of a Motor Vehicle, in Particular of a Tilting Vehicle

The invention relates to an actuating device (2) for a brake-by-wire brake system of a motor vehicle, in particular of a tilting vehicle, having at least one actuating element (4) that is able to be actuated by muscular force and is transferable by muscular force from an unactuated rest position (R) into at least one working position (A), having at least one control unit (6) which comprises at least one sensor element (8), by way of which the position of the actuating element (4) is able to be indirectly or directly sensed, and with which a braking force of a brake that is able to be actuated by the control unit (6) is settable depending on the working position (A), sensed by the sensor means, of the actuating element (4), and having at least one restoring unit (10) with which the actuating element (4) is preloaded or able be preloaded by a restoring force into the unactuated rest position (R), wherein the restoring force of the restoring unit (10) and the braking force set at the brake by the control unit (6) increase as the deviation of the respective working position (A) from the rest position (R) of the actuating element (4) increases.