VEHICLE BRAKING SYSTEM

摘要

A vehicle braking system includes a brake actuator, a braking control valve assembly and an emergency apply valve having a control port which is connected to the supply line by a further control line. The braking system also includes an electrically operable brake apply valve that is movable between a first position in which fluid flow along further control line is permitted and a second position in which fluid flow along the further control line is substantially prevented and the control of the emergency apply valve is connected to a low pressure region.