METHOD FOR CORRECTION BOOST DEVIATION OF TURBOCHARGER

摘要

PURPOSE: A boost deviation correction method of a turbocharger is provided to improve control precision of a variable turbo charger by applying data on the flow rate of the turbo charger, efficiency according to the boost pressure, and air flow to the control device. CONSTITUTION: A boost deviation correction method of a turbocharger comprises the steps of: measuring the efficiency of a representative control point and extracting a deviation with respect to a reference value(S101), coding the extracted deviation into the format for an engine control unit and storing it in a memory of the engine control unit(S103), and learning the boost deviation in the engine control unit through an open loop map and deciding a boost deviation control value(S106).