Method for operating electric fuel pump of fuel system of internal combustion engine, involves determining function of executive change by varying flow rate, such that torque of engine is correlated with trait than adequate capacity

摘要

The method involves operating electric fuel pump (36) in second phase. The flow rate is driven by a preset value. The function of the executive change is determined by varying the flow rate, such that torque of the internal combustion engine (10) is correlated with trait than adequate capacity. The torque of the internal combustion engine correlated with characteristic of the speed signal of the internal combustion engine is determined. Independent claims are included for the following: (1) computing unit; and (2) machine-readable storage medium storing computer program for operating electric fuel pump.