GPF regeneration efficiency of a turbocharged direct injection low-pressure EGR engine
NING Chenggang
SUN Mengxiang
ZHANG Jiarui
LIU Yong
ZHU Wenwu
WANG Dong
GUO Junde
Abstract：In order to improve the regeneration efficiency of the gasoline particulate filter(GPF)in a turbocharged,direct injection,and low-pressure exhaust gas recirculation(LP-EGR)Miller cycle engine of a full hybrid electric vehicle,the GPF regeneration control strategy is optimized,and verified by regeneration tests under urban and suburban conditions.The experimental results show that using a hybrid control unit(HCU)as the associated controller for GPF regeneration,with the HCU controlling the regeneration process,the actual regeneration carbon content in urban and suburban conditions increases by 10%and 15%respectively compared to before optimization.The new GPF regeneration control strategy can effectively solve the problem of difficult GPF regeneration and low regeneration efficiency of GPF for full hybrid electric vehicle in these two conditions.
Keywords：full hybrid electric vehiclesupercharging direct injectionMiller cycleHCULP-EGRGPF
Publication Date：2025-01-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 69-74,86 )