Design of accelerated durability test of aftertreatment system for a non-road CHINA Ⅳ diesel engine
LI Jianwei
SUN Zhijiang
YANG Qi
LI Song
ZHENG Biying
SU Guoliang
ZHANG Xijie
XIE Chengfen
Abstract：In order to shorten the reliability assessment time of non-road CHINA Ⅳ aftertreatment system under the premise of accurate assessment,an accelerated durability test is designed to link the accelerated durability test of the aftertreatment system with the durability test of the entire vehicle system.The reliability test of the non-road aftertreatment system is accelerated from the aspects of thermal stress fatigue and vibration fatigue,and is verified by testing a bulldozer as an example.The experimental results show that the designed test damage is not lower than the actual working life damage.Thermal fatigue and vibration fatigue acceleration tests can effectively shorten the verification time and improve development efficiency.
Keywords：non-road CHINA Ⅳ diesel engineaftertreatment systemthermal fatiguevibration fatiguedamagedurability
Publication Date：2024-10-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 58-63 )