Central door-locking system for vehicles

摘要

The invention relates to a central door-locking system for vehicles with integrated anti-theft protection. Each door lock is assigned two fluidically actuable bistable actuators on the one hand for the locking and unlocking of the door lock (ZV actuator 1) and on the other hand for a blocking of the locking (DS actuator 2). A central fluid pump electrically controllable via the key-actuable door lock or the locking knob coupled thereto is connected via fluid lines to the actuators (1, 2) and loads these on one side with overpressure or underpressure for the respective locking or unlocking of the door locks and for the respective blocking or release of the door locking. A single fluid line (5), starting from the central fluid pump, leads respectively to each door lock. At each door lock, the corresponding fluid line (5) is branched and leads respectively, in one branch, to the ZV actuator (1) - ZV branch (6) - and to the DS actuator (2) - DS branch (7). The ZV actuator (1) and DS actuator (2) are connected to one another by means of an intermediate line (13). Arranged in the ZV branch (6) and the DS branch (7) are respective one-way valves (non-return valves 8, 12), the throughflow directions (9, 9') of which point from the fluid pump to the associated ZV actuator (1). Arranged in the intermediate line (13) is a limit-pressure valve (14) which, from a fixed limiting overpressure, opens the fluid throughflow from the ZV actuator (1) to the DS actuator (2). The fluid pump is [lacuna] in the [lacuna]... Original abstract incomplete.