公开(公告)号：US20170074191A1

公开(公告)日：2017-03-16

申请号：US14954866

申请日：2015-11-30

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Young Jic KIM ,  Jungwhun KANG ,  Won Jin JO

IPC: F02D41/02 ,  F01N3/08 ,  F01N3/20

CPC classification number: F02D41/0275 ,  F01N3/021 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/206 ,  F01N3/2066 ,  F01N13/009 ,  F01N2260/04 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1614 ,  F01N2900/1622 ,  F02D41/0235 ,  F02D41/1446 ,  F02D2200/08 ,  F02D2200/0806 ,  Y02A50/2344 ,  Y02T10/24

Abstract: A method for regenerating a lean NOx trap (LNT) of an exhaust purification system having the LNT and a selective catalytic reduction (SCR) catalyst includes determining whether a regeneration release condition of the LNT is satisfied; determining whether a regeneration demand condition of the LNT is satisfied; and performing regeneration of the LNT if the regeneration release condition of the LNT and the regeneration demand condition of the LNT are satisfied, wherein satisfaction of the regeneration release condition of the LNT is determined based on an NOx amount absorbed in the LNT, an NH3 amount stored in the SCR catalyst and temperature at an upstream of the SCR catalyst.

Abstract translation: 一种用于再生具有LNT和选择性催化还原（SCR）催化剂的排气净化系统的贫NOx捕集器（LNT）的方法包括确定是否满足LNT的再生释放条件; 确定是否满足所述LNT的再生需求条件; 如果LNT的再生释放条件和LNT的再生需要条件满足，则执行LNT的再生，其中基于在LNT中吸收的NOx量来确定LNT的再生释放条件的满足度，NH 3量 储存在SCR催化剂和SCR催化剂上游的温度。

公开(公告)号：US20160032799A1

公开(公告)日：2016-02-04

申请号：US14626345

申请日：2015-02-19

Applicant: Hyundai Motor Company ,  Kia Motors Corp.

Inventor： Won Jin Jo ,  Chung Gyu KIM ,  Seok Dong KIM ,  Je Rok CHUN ,  Jae Yeon LEE ,  Byeong Kyu YOON ,  Bong Kyoo PARK ,  Young Jic KIM

IPC: F01N3/023

CPC classification number: F01N3/023 ,  F02D41/029 ,  F02D41/08 ,  F02D2200/0802

Abstract: A method of maintaining diesel particulate filter (DPF) regeneration for improving durability of a DPF, may include determining, by a controller, whether a vehicle enters an idle state during the DPF regeneration, controlling, by the controller, a concentration of oxygen introduced into the DPF to be equal to or less than a first reference value when the vehicle enters the idle state, and performing, by the controller, a regeneration process until a soot mass in the DPF may be equal to or less than a target reference value.

Abstract translation: 维持用于提高DPF的耐久性的柴油机微粒过滤器（DPF）再生的方法可以包括由控制器确定在DPF再生期间车辆是否进入空闲状态，通过控制器控制引入的空气的浓度 当车辆进入怠速状态时DPF等于或小于第一参考值，并且由控制器执行再生过程直到DPF中的烟炱质量可以等于或小于目标参考值。