APPARATUS AND METHOD OF ADJUSTING A VARIABLE AMPLIFICATION FACTOR OF A BRAKE FORCE BOOSTER

摘要

In order to boost a power brake (4) in a variable manner, the construction-inherent basic boosting factor (iG) is overridden by an electronic external control. For that purpose, the pedal actuating force (FF) is measured by a non-specific force sensor (10) either at the brake pedal (2) or at the piston rod of the power brake (4) after being amplified by the brake pedal (2). A set pressure value (ps) is derived from this measurement value by a variable amplifier (11) and an electric signal adapting unit (12). The braking pressure (pi) that results from pedal actuating force (FF) and basic boosting factor (iG) of the power brake can thus be overridden by the external control.