BRAKE BOOSTER FOR AN AUTOMOTIVE BRAKE SYSTEM AND CORRESPONDING AUTOMOTIVE BRAKE SYSTEM

摘要

The invention relates to a brake booster (10) for an automotive brake system with regenerative brake force generation. Said brake booster comprises a force input element (12) that can be or is coupled to a brake pedal, a chamber arrangement having a vacuum chamber (22) and a working chamber (24) which are separated from each other via a mobile wall (18), a control valve (14) via which the working chamber (24) can be optionally connected to the vacuum chamber (22) or the atmosphere for generating or reducing a differential pressure on the mobile wall (18) in accordance with the displacement of the force input element (12), the control valve (14) having a control valve housing (16) that is connected to the mobile wall (18) to move together with said wall. In a first activation phase of the brake booster (10) from its rest position the force input element (12) can be displaced by an idle travel (s) in relation to the control valve housing (16), the control valve (14) remaining inactivated during the idle travel to suppress a differential pressure build-up on the mobile wall (18).