APPARATUS AND METHOD FOR CONTROL LOW PRESSURE EXHAUST GAS RECIRCULATION SYSTEM

摘要

PURPOSE: A low pressure EGR system is provided to control low pressure EGR amount according to flow of intercooler and a back end temperature. CONSTITUTION: A low pressure EGR system control device comprises a driving information detection unit(10), a control unit(20), and a low pressure EGR valve(30). The driving information detection unit detects information of direct/indirect factor relating to generation of condensed water of an intercooler and low pressure EGR cooler. The control unit determines low pressure EGR control duty by applying indirect factor to a preset map.