A control for a pressure 
fluid supply system is described, in particular for the 
high pressure in a 
fuel injection system, for example for an internal 
combustion Diesel engine, by means of which the pressure in a common high-pressure line supplied by a high-pressure pump, i.e. in the 
common rail, to which individual consumers are connected, is controlled in accordance with the instantaneous pressure fluid requirements. For adapting the pressure in the common high-pressure line to the pressure fluid requirements of the consumers, i.e. the injection nozzles, a device for limiting the amounts of fluids conveyed is associated with the high-pressure pump, which has at least on adjusting element which can be changed by means of an adjusting 
signal representing the instantaneous pressure 
fluid supply situation in the 
common rail. To avoid an elaborate 
pressure sensor device in the 
common rail and for the simultaneous improvement of the 
reaction behavior of the control, in particular when reducing the 
high pressure in the common rail, the adjusting 
signal is derived from the amount of fluid 
throughput in the delivery line of a 
pressure control valve connected to the common rail. The pre-conveying pressure or the pre-conveying amount available to the high-pressure pump is affected by means of this adjusting 
signal in the sense of a regulation of the pressure in the common rail.