Vacuum braking force amplifier for motor vehicle has explosive charge arranged in working chamber that can be ignited by igniter supplied with electrical control pulse

摘要

The braking force amplifier has a housing (10) divided into a working chamber (40) and a vacuum chamber (50) by a working piston (20) and a pressure-tight membrane (30). The working chamber is supplied with air when the brake pedal (60) actuates the piston to produce an overpressure wrt. the vacuum chamber, whereby a pressure rod (90) is actuated with a force amplified wrt. the pedal force. An explosive charge (110) arranged in the working chamber can be ignited by an igniter (120) supplied with an electrical control pulse.