Pantograph system for supplying e.g. railway vehicle, has pressure regulator controlled by equipment permitting to vary threshold pressure from control module, where equipment is formed of pneumatic drive module and electronic board

摘要

The system has an adjustment screw acting on a membrane of a pressure regulator for performing an initial calibration adjustment at a threshold pressure. An electronic circuit receives a pressure signal provided by a sensor. The circuit receives a signal representing a speed of a pneumatic adjustment unit that makes a dynamic modification of calibration adjustment value. The regulator is controlled by an equipment that permits to pneumatically vary threshold pressure from a separate control module. The equipment is formed of a pneumatic drive module (11) and an electronic board (9). An independent claim is also included for a method for controlling a driven pantograph that is actuated by a pneumatic cushion.