CONTROL DEVICE AND CONTROL SYSTEM OF A HYDRAULICALLY ACTUATED DEVICE FOR PARKING AND/OR EMERGENCY BRAKE UNIT OF A VEHICLE USABLE IN AGRICULTURE OR CIVIL ENGINEERING

摘要

a control system for a hydraulically operated, with a federspeicherbremszylinder (2) as bremszuspanneinrichtung (caps lock and / or notbremseinrichtung (1)preferably, a country or bauwirtschaftlich usable tractor or systemfahrzeuges provided.the control unit serves to control the pressure in a surge chamber (4) of the federspeicherbremszylinders (2)with this, and a sleeve (9) is arranged and a wegeventil trainedelectronically, in two different schaltstellungen aktuierbares bremsbetu00e4tigungsventil (16) contains.however, the bremsbetu00e4tigungsventil (16) of an electronic control unit (20) is actuated.the design of the bremsbetu00e4tigungsventils (16) such that the control valves without rastmittel, in addition to the stelleinrichtung must be providedin the last schaltstellung collected will be kept to a stelleinrichtung (18) of the bremsbetu00e4tigungsventils (16) so as to be trainedthat the bremsbetu00e4tigungsventil (16) at least in one of his schaltstellungen eigenstabil holdsso that the control valves without further bestromung the stelleinrichtung (18) in a previously set schaltstellung remains.