Method for regulating the pressure in a fuel accumulator of an internal combustion engine

A method for regulating the pressure in a fuel accumulator of an internal combustion engine, in particular in a common rail system is described. The provision of different regulating modes for regulating the pressure in the fuel accumulator is known from the related art. The difference between the individual regulating modes is that, in these modes, only one or multiple independent regulating circuits are active simultaneously to regulate the pressure. A switch-over operation between the regulating modes usually takes place on the basis of different operating states of the internal combustion engine. To minimize disturbances in the pressure in the fuel accumulator during a switch-over operation between two regulating modes, the regulating circuits involved in the switch-over operation are disconnected, and the regulating devices of these regulating circuits are supplied with a suitable switch-over input signal that is predetermined for the switch-over operation in question instead of an input signal representing a system deviation.