Patent ID: 8418675

Claim:
A method 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, the method comprising: superposing variable torque contributions of the internal combustion engine and of the second drive motor; setting in an actual value of the fuel pressure, in response to a lower torque contribution of the internal combustion engine, in the high pressure fuel accumulator, and deviating from a setpoint value specified for higher torque contributions; and adjusting the actual value to its higher setpoint value in response to an increase in the torque contribution from the lower torque to the higher torque contribution of the internal combustion engine; wherein 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.