Method for adjusting a fuel pressure

Abstract

A method is provided for adjusting a fuel pressure in a high pressure fuel accumulator of an accumulator injection system of an internal combustion engine as a first drive motor which, together with a second drive motor, is situated in a drive train, in which variable torque contributions of the internal combustion engine and of the second drive motor are superposed, an actual value of the fuel pressure, which sets in in response to a lower torque contribution of the internal combustion engine in the high pressure fuel accumulator, deviating from a setpoint value specified for higher torque contributions and at which the actual value, in response to an increase in the torque contribution from the lower value to the higher torque contribution of the internal combustion engine being adjusted to its higher setpoint value. The method stands out in that the adjustment is performed so that a rate of a change in the actual value does not exceed a specified boundary value during the adjustment. A control device equipped to perform the method is also provided.

Dependencies are inferred from the claim text.