Method for adjusting the pressure in a pumping system

Method for adjusting the pressure in a pumping system (10) of a motor vehicle with an internal combustion engine, the pumping system (10) comprising:

• at least one pumping circuit for at least one fluid;
• one or more pumps, wherein each pump is provided with a respective driving motor;
• at least one programmable electronic control unit (12);
• the method comprising:
• adjusting or mapping the at least one programmable electronic control unit (12) of the pumping system (10), carried out by setting a set of predefined operating parameters of said one or more pumps in the at least one programmable electronic control unit (12) of the pumping system (10) wherein said set of predefined operating parameters includes at least a nominal rotation speed of the driving motor of each pump of the pumping system (10) in order to achieve a pressure required by said pumping system (10) at room temperature;
• controlling the operation of the pumping system (10) using an open-loop control independent of output parameter values of the pumping system (10).