Brake booster i.e. low pressure-operated active brake booster, system for motor car, has actuator controlling position of valve to maintain low pressure in booster, and controller outputting drive signal for actuator

摘要

The system (38) has a low pressure transmitter for measuring pressure in a low pressure-operated brake booster and generating a low pressure signal. A low pressure hose (20) connects the brake booster with an intake manifold (18), and an intake manifold valve (42) is movable between positions. An actuator (40) controls position of the valve due to the pressure signal to maintain the desired low pressure in the brake booster. A controller (46) receives the low pressure signal and outputs a drive signal for the actuator. An independent claim is also included for a method for operating a brake booster system for a motor car.