VACUUM TANK PRESSURE ESTIMATION METHOD FOR A VACUUM BRAKE SERVO TANK

摘要

A method for estimating pressure in a vacuum reservoir of a vacuum brake servo of a motor vehicle, the vehicle including: a braking device operated by pressure of a brake fluid; a brake servo amplifying force of an actuating member using a vacuum supplied by a reservoir; a pressure sensor configured to measure the braking pressure of the brake fluid; the method includes: calculating the braking pressure; calculating amplitude of a reduction in braking pressure; estimating increase of the pressure in the vacuum reservoir as a function of the amplitude.