Electrically operable holding brake system for a pneumatic braking installation and method for operating an electrically operable holding brake system

摘要

The invention relates to an electrically operable holding brake system (10) for a pneumatic braking installation having a control valve device (12) which comprises a first control valve input connection (14) a second control valve input connection (16) and a control valve output connection (18) a supply valve (74) coupled to the first control valve input connection (14) and a control and vent valve device (102) coupled to the second control valve input connection (16). According to the invention the control valve output connection (18) is coupled directly to a first shuttle valve input connection (40) of a shuttle valve (38) and a shuttle valve output connection (44) of the shuttle valve (38) is coupled to a relay control input (112) of a relay valve (108). The invention also relates to a method for operating an electrically operable holding brake system (10).