Vehicle brakes test method for testing an electro-hydraulic motor vehicle braking system tests for unreleased gas in a brake fluid

摘要

Pedal travel and pressure are measured in a main brake cylinder (MBC) (12) and compared with desired values. If the pedal travel at a given pressure is greater than a desired value, it indicates gas bubbles in a brake fluid. Pedal travel and pressure are measured in a stationary, steady state, i.e. with the foot brake pedal (14) out of operation and with a constant pressure in the MBC.