A process for the calculation of the negative pressure in the brake booster of a vehicle with otto - motor

摘要

The subject matter of the invention relates to a process for the pressure sensorless determining a pressure in a brake booster, which is actuated by means of an actuating device for a motor vehicle with a motor system, comprising a suction tube pressure acting upon the suction pipe for optimized carrying out a braking operation, comprising the steps of: detecting the driving situation, and simulate the pressure (bp _ sim) as a function of the driving situation, as well as a device for amplification of the braking force in an otto motor operated motor vehicle with an actuating device and a with the actuating device under pressure, which is coupled to the force amplification in front of the direction, wherein the force amplification in front of the direction of the under pressure is designed without sensors and a brake booster, with means for carrying out the method.