This enables comfortable braking in the braking system of modern vehicles. The brake booster uses underpressure in the intake pipes of a gasoline engine (in the case of diesel engines the underpressure is generated by the vacuum pump). By applying minor force to the brake pedal, the driver opens the regulatory valve in the braking booster, which releases atmospheric pressure to one side of the rubber membrane in the braking booster. Lower pressure (underpressure) then occurs on the other side of the membrane and as a result of the pressure difference the membrane starts to move in the direction of the lower pressure. Thanks to the mechanical link there is a secondary impact on the piston of the brake master cylinder, thus enabling effective braking.
The FTE automotive brake booster is the result of many years of experience and innovation. With the comparable force applied to the brake pedal, the FTE brake booster achieves significantly higher braking force compared to conventional brake boosters.