Patent ID: 11859527
Assignee: MARELLI EUROPE S.P.A.
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 1:
2. The method according to claim 1, wherein the step of determining the actual number (N) of revolution comprises:
determining a first closed-loop contribution (NCL1) by means of a first PID controller (PID1), which zeroes an error in an air pressure, which is a difference between the objective air pressure (PA_OBJ) and the actual value (PA) of the air pressure;
determining a second closed-loop contribution (NCL2) by means of a second PID controller (PID2), which zeroes an error in the air/fuel ratio, which is a difference between the objective value (λOBJ) of the air/fuel ratio and the actual value (A) of the air/fuel ratio;
calculating the further contribution (NADAT) depending on a sum of the integral action of the first PID controller (PID1) and of the second PID controller (PID2) under stationary conditions; and
adding the nominal number (NNOM) of revolutions, the first closed-loop contribution (NCL1), the second closed-loop contribution (NCL2) and the further contribution (NADAT) of the number of revolutions with which to control the pumping device (24).