Patent ID: 7040291
Filing Date: 2006-05-09
Classification: F02D

Abstract:
1. A method for regulating a pressure in a fuel accumulator of an internal combustion engine, comprising: performing a steady-state operation of a pressure regulator according to an instantaneous regulating mode; implementing a switch-over operation for switching the pressure regulator from the instantaneous regulating mode over to a desired future regulating mode in response to a regulating mode signal; and performing the steady-state operation of the pressure regulator according to the future regulating mode; activating at least one regulating circuit in each regulating mode to regulate the pressure; during each steady-state operation of the at least one regulating circuit, driving a regulating device individually assigned to each of the at least one regulating circuit by an input signal representing a system deviation; opening those of the at least one regulating circuit involved in the switch-over operation to perform the switch-over operation according to the implementing of the switch-over operation by activating their respective regulating devices via switch-over input signals that are predetermined individually for each switch-over operation instead of via a previous input signal, the at least one regulating circuit being designed in such a way that the regulating devices are switched in the desired manner from an instantaneous operating state defined by the instantaneous regulating mode over to a future operating state defined by the future regulating mode.