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公开(公告)号：KR101294052B1
公开(公告)日：2013-08-07
申请号：KR1020100118222
申请日：2010-11-25
Applicant: 현대자동차주식회사
Inventor： 박지원
Abstract: 본 발명의 실시예에 따른 배기가스 후처리 시스템은, 배기가스에 포함된 유해물질을 제거하고, 산화반응에 의해서 배기가스의 온도를 상승시키는 촉매, 상기 촉매의 후단에 배치되어 입자상물질을 여과하는 디젤매연필터, 상기 촉매로 유입되는 배기가스의 온도와 상기 촉매에서 배출되는 배기가스의 온도를 감지하는 제1온도센서와 제2온도센서, 및 연료의 추가분사를 통해서 상기 디젤매연필터에 포집된 입자상물질 또는 황성분을 제거하는 제어부를 포함하되, 상기 제어부는, 주행거리에 따른 상기 촉매의 열화도를 설정된 데이터로부터 선택하고, 상기 제1,2온도센서로부터 상기 촉매의 전단온도(T1)와 후단온도(T3)를 감지하되, 상기 디젤매연필터(DPF)가 재생되는 동안에, 상기 열화도, 및 상기 전후단온도(T1, T3)를 기초로 상기 촉매의 내부온도(T2)를 선택하여, 상기 내부온도가 설정된 제한수치(Tmax)를 초과하지 않도록 후분사를 제어한다.
따라서, 상기 디젤매연필터가 재생되는 동안에서 후분사로 인하여 유발되어 상기 LNT가 고온으로 파손되거나 촉매가 열화되어 그 정화율이 저하되는 것을 미연에 방지할 수 있다.-
公开(公告)号：KR1020130057843A
公开(公告)日：2013-06-03
申请号：KR1020110123796
申请日：2011-11-24
Applicant: 현대자동차주식회사
Inventor： 박지원
CPC classification number: F01N3/021 , F01N3/10 , F01N3/20 , F01N13/009 , F01N2250/02 , F01N2560/06 , F01N2560/08 , F01N2610/02 , F01N2610/146
Abstract: PURPOSE: An exhaust gas processing device and a control method thereof are provided to regulate a sprayed amount of a reducing agent, thereby minimizing the amount of ammonia ejected to atmosphere. CONSTITUTION: An exhaust gas processing device comprises an exhaust line(100), an oxidation catalyst(110), a smoke filter(140), a reducing agent spraying device(120), a differential pressure sensor(150), a control unit, and a temperature sensor(130). A method of controlling the exhaust gas processing device comprises: a step of calculating proportions of nitrogen oxide and nitrogen monoxide included in exhaust gas by using a mass flow of the exhaust gas and the temperature sensed by the temperature sensor; a step of calculating the amount of particulate matters collected by the differential pressure of the front and rear ends of the smoke filter and an operation condition of an engine; a step of calculating a reduced amount of the nitrogen oxide included in the exhaust gas according to the amount of particulate matters; and a step of regulating a sprayed amount of a reducing agent proportional to a reduced amount of nitrogen dioxide and the amount of the nitrogen oxide.
Abstract translation: 目的：提供一种排气处理装置及其控制方法，以调节还原剂的喷射量，从而使喷射到大气中的氨的量最小化。 构成：废气处理装置包括排气管线（100），氧化催化剂（110），烟雾过滤器（140），还原剂喷射装置（120），差压传感器（150），控制单元， 和温度传感器（130）。 控制废气处理装置的方法包括：通过使用废气的质量流量和由温度传感器感测的温度来计算废气中包含的氮氧化物和一氧化氮的比例的步骤; 计算由烟雾过滤器的前端和后端的压差和发动机的操作状态收集的颗粒物质的量的步骤; 根据微粒物质的量计算废气中包含的氮氧化物的减少量的步骤; 以及调节与减少二氧化氮量和氮氧化物量成比例的还原剂喷雾量的步骤。
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公开(公告)号：KR1020120030846A
公开(公告)日：2012-03-29
申请号：KR1020100092647
申请日：2010-09-20
Applicant: 현대자동차주식회사
CPC classification number: Y02T10/24 , Y02T10/47 , F01N3/208 , F01N2550/02 , F01N2560/06 , F01N2570/14 , F01N2610/146
Abstract: PURPOSE: An exhaust gas post-treatment method and a system thereof are provided to precisely control amount of the hydrocarbon flowing in as a SCR(Selective Catalytic Reduction). CONSTITUTION: An exhaust gas post-treatment method comprises next steps. Set discharging amount of the hydrocarbon and nitrogen oxide is selected according to a driving condition of an engine(S220). A temperature difference between the front and rear sides of a SCR(S230). An actual inflow amount of the hydrocarbon into the SCR is calculated by using the temperature difference and a set efficiency value of SCR(S260). The actual inflow amount of the hydrocarbon and the set discharging amount of the nitrogen oxide are under than the set value, the inflow amount of the hydrocarbon into the SCR is increased by using a post-spraying. The actual inflow amount of the hydrocarbon and the set discharging amount of the nitrogen oxide are under than the set value, the post-spraying is not performed.
Abstract translation: 目的：提供一种废气后处理方法及其系统，以精确控制作为SCR（选择性催化还原）流入的烃的量。 构成：废气后处理方法包括下一步骤。 根据发动机的驱动条件来选择设定碳氢化合物和氮氧化物的排出量（S220）。 SCR的前侧和后侧之间的温度差（S230）。 通过使用温度差和SCR的设定效率值来计算碳氢化合物进入SCR的实际流入量（S260）。 碳氢化合物的实际流入量和氮氧化物的设定排出量低于设定值，通过使用喷雾后的烃进入SCR的流入量增加。 碳氢化合物的实际流入量和氮氧化物的设定排出量低于设定值，不进行后喷射。
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公开(公告)号：KR1020110024252A
公开(公告)日：2011-03-09
申请号：KR1020090082161
申请日：2009-09-01
Applicant: 현대자동차주식회사
Inventor： 박지원
CPC classification number: Y02A50/2322
Abstract: PURPOSE: A device and a method for protecting an emission reduction line of a diesel vehicle is provided to prevent a diesel smoke filter from being burn out by controlling the regeneration of the diesel smoke filter. CONSTITUTION: A device for protecting an emission reduction line of a diesel vehicle comprises an oxidation catalyst(51), a diesel smoke filter(53), a thermocouple(52), and a controller. The oxidation catalyst is installed in an exhaust manifold of an engine and purifies hydrocarbon in exhaust gas. The diesel smoke filter is installed in the bottom side of the oxidation catalyst and collects particulates with soot. The diesel smoke filter is installed in the downstream side of the oxidation catalyst. The thermocouple is installed in the rear end of the oxidation catalyst and measures the temperature of the rear end of the oxidation catalyst. The controller estimates the temperature of the oxidation catalyst and calculates a temperature difference between the front and rear ends of the oxidation catalyst.
Abstract translation: 目的：提供一种用于保护柴油车辆的排放管线的装置和方法，以通过控制柴油烟雾过滤器的再生来防止柴油烟雾过滤器燃烧。 构成：用于保护柴油车辆的排放管线的装置包括氧化催化剂（51），柴油烟雾过滤器（53），热电偶（52）和控制器。 氧化催化剂安装在发动机的排气歧管中并净化废气中的碳氢化合物。 柴油烟雾过滤器安装在氧化催化剂的底部，并用烟灰收集颗粒物。 柴油烟雾过滤器安装在氧化催化剂的下游侧。 热电偶安装在氧化催化剂的后端，并测量氧化催化剂后端的温度。 控制器估计氧化催化剂的温度并计算氧化催化剂的前端和后端之间的温度差。
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公开(公告)号：KR100888310B1
公开(公告)日：2009-03-11
申请号：KR1020070131220
申请日：2007-12-14
Applicant: 현대자동차주식회사
CPC classification number: Y02A50/2325 , Y02T10/16 , Y02T10/24 , F01N3/20 , F01N2510/06 , F01N2610/02
Abstract: A catalyst for an SCR is provided to reduce injection amount of urea and capacity of a tank while rapidly reducing the amount of HC drawn in into an SCR and improving cleaning efficiency of nitrogen by hydrogen among the transformed reducing agent by installing a diesel fuel decomposing catalyst device instead of a diesel fuel decomposing catalyst to the rear part of a turbocharger. A diesel fuel decomposing catalyst device(400) for an SCR(Selective Catalytic Reduction System) comprises an activating metal part(410) composed of platinum, palladium, rhodium, ruthenium, and stannum; and a base metal oxide(420) composed of alumina, zirconia, ceria, and zeolite installed between an outlet side of a turbocharger and an exhaust gas post processing part(300). Hydrocarbon expelled from the turbocharger is converted into reducing agent through a steam reforming, partial oxidation, and thermal cracking processes.
Abstract translation: 提供了一种用于SCR的催化剂，以便减少吸入SCR中的HC的量，同时通过安装柴油分解催化剂来改善转化的还原剂中的氢的氮清洗效率，从而减少尿素的注入量和容量。 装置代替柴油分解催化剂到涡轮增压器的后部。 用于SCR（选择性催化还原体系）的柴油分解催化剂装置（400）包括由铂，钯，铑，钌和锡组成的活化金属部分（410） 以及安装在涡轮增压器的出口侧和排气后处理部（300）之间的由氧化铝，氧化锆，二氧化铈和沸石构成的贱金属氧化物（420）。 从涡轮增压器排出的烃通过蒸汽重整，部分氧化和热裂解过程转化为还原剂。
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Patent Agency Ranking
公开(公告)号：KR100857346B1
公开(公告)日：2008-09-05
申请号：KR1020070068045
申请日：2007-07-06
Applicant: 현대자동차주식회사
CPC classification number: F01N3/0231 , F01N3/106 , F01N3/208 , F01N2560/08 , F01N2610/02 , F01N2900/1606 , F01N2900/1611 , F01N2900/1616 , Y02T10/24
Abstract: A method of controlling the amount of urea to be injected is provided to reduce consumption of urea by taking combustion of soot into consideration. A method of controlling the amount of urea to be injected includes a step(500) of starting an engine which forecasting mass flow rate at a specific RPM(Revolution Per Minute), a step(600) of measuring temperature of exhaust gas to invoke conditions for CRT(Continuous Regeneration Trap), a step(700) of forecasting back pressure considering the influence of soot, a step(800) of forecasting ratio of nitrogen dioxides to nitrogen oxides, and a step(900) of controlling amount of reduction agent.
Abstract translation: 提供一种控制要注入的尿素量的方法，以便通过考虑烟灰的燃烧来减少尿素的消耗。 控制要喷射的尿素量的方法包括启动以特定RPM（每分钟转数）预测质量流量的发动机的步骤（500），测量废气温度的步骤（600）以调用条件 对于CRT（连续再生陷阱），考虑烟灰的影响的预测背压的步骤（700），二氧化氮的预测步骤（800）和氮氧化物的步骤（800）以及控制还原剂的量的步骤（900） 。
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公开(公告)号：KR101896833B1
公开(公告)日：2018-09-07
申请号：KR1020170043651
申请日：2017-04-04
Applicant: 현대자동차주식회사
Inventor： 박지원
CPC classification number: Y02A50/2324 , Y02T10/22 , F02D41/1401 , B01D53/94 , F01N3/20
Abstract: 본발명은가솔린엔진이장착된차량에서퓨얼컷 직후산소퍼지시수트의온도가급격히상승하여 GPF가파손되는것을방지하도록한 퓨얼컷시 GPF 소손을방지하는엔진의제어방법에관한것으로서, 엔진시동후, 상기엔진의회전수, 차량의속도, 상기엔진으로부터배출되는배기가스의유량및 상기촉매의입구와출구의온도를입력받는제어조건입력단계(S110)와, 상기촉매의입구의온도가퓨얼컷 이전에촉매입구의최대허용온도보다낮은지를판단하는촉매입구온도판단단계(S130)와, 차량이감속하면, 퓨얼컷 제어를수행하는퓨얼컷 수행단계(S140)와, 상기촉매입구의온도와상기촉매로유입되는배기가스의유량이 GPF가과열된것으로미리설정된조건을충족하는지를판단하는제어진입조건만족판단단계(S150)와, 상기엔진의회전수를정해진양 만큼상승시키고, EGR량을증대시켜산소농도를저감시키는엔진운전조건변경단계(S161)와, 상기엔진의내부에서이론공연비보다농후하게연소시켜상기촉매에저장된산소를소모시키는제1 O퍼지단계(S162)와, 상기엔진운전조건변경단계(S161)에서변경된엔진의회전수와 EGR량을상기엔진운전조건변경단계(S161) 이전으로복원시키는엔진운전조건복귀단계(S163)를포함하는것을특징으로한다.
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公开(公告)号：KR101816430B1
公开(公告)日：2018-02-21
申请号：KR1020160104142
申请日：2016-08-17
Applicant: 현대자동차주식회사
CPC classification number: F01N9/002 , B01D53/9418 , B01D53/9495 , B01D53/96 , B01J38/02 , F01N3/023 , F01N3/035 , F01N3/2066 , F01N3/208 , F01N11/007 , F01N13/009 , F01N2250/14 , F01N2430/06 , F01N2570/04 , F01N2900/1602 , F01N2900/1606 , F01N2900/1612 , Y02T10/24 , Y02T10/47 , F01N3/0821 , F02D41/0235
Abstract: 본발명은 SCR 장치의탈황을효과적으로구현할수 있는배기가스정화시스템의제어방법에관한것이다. 본발명은 DPF 및 SCR이조합된배기가스정화시스템의제어방법으로, SCR 장치의황 피독량과 DPF 내의매연퇴적량을산출하는산출단계; 및상기황 피독량이제1설정값보다크고, 상기매연퇴적량이제2설정값보다보다작으면상기 SCR 장치의온도를탈황온도까지상승시키는온도상승단계;를포함할수 있다.
Abstract translation: 排气净化系统的控制方法技术领域本发明涉及可有效实现SCR装置的脱硫的排气净化系统的控制方法。 本发明是一种排气净化系统的控制方法，其中组合DPF和SCR，所述方法包括：计算所述SCR设备的硫含量和所述DPF中的烟灰积聚量; 以及升温步骤，当硫中毒量大于第一设定值且碳烟积聚量小于第二设定值时，将SCR装置的温度升高至脱硫温度。
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公开(公告)号：KR101518959B1
公开(公告)日：2015-05-11
申请号：KR1020130158650
申请日：2013-12-18
Applicant: 현대자동차주식회사
CPC classification number: F01N3/10 , F01N3/035 , F01N13/0097 , F01N2250/02 , F01N2570/14 , F01N2610/02 , F01N2610/1453
Abstract: 본발명의실시예에따른배기가스처리장치는, 배기가스가흐르는배기라인, 상기배기라인상에형성되고, 그내부의상류측에디젤산화촉매가설치되고, 그내부의하류측에디젤매연필터가설치되는촉매하우징, 상기촉매하우징에서상기디젤산화촉매와상기디젤매연필터사이에서환원제를분사하는환원제인젝터, 및상기디젤산화촉매와상기디젤매연필터사이에배치되어상기환원제인젝터에서분사되는환원제와배기가스를분사하는믹싱유닛을포함할수 있다.
Abstract translation: 根据本发明的一个实施例，排气处理装置包括：废气流动的排气管; 安装在排气管线上的催化剂壳体，其中柴油机氧化催化剂安装在上游侧，柴油机废气过滤器安装在下游侧; 还原剂喷射器，在所述催化剂壳体内的所述柴油机氧化催化剂和所述柴油机废气过滤器之间注入还原剂; 以及配置在所述柴油机氧化催化剂和所述柴油机废气过滤器之间的混合单元，并且从所述还原剂喷射器和排气喷射所述还原剂。
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公开(公告)号：KR1020140087867A
公开(公告)日：2014-07-09
申请号：KR1020120158625
申请日：2012-12-31
CPC classification number: Y02A50/2325 , Y02T10/24 , F01N3/035 , F01N3/2066 , F01N13/011
Abstract: Disclosed is a post-treatment device for exhaust gas of a vehicle which eliminates harmful substances contained in the exhaust gas discharged from an engine. The post-treatment device for exhaust gas of a vehicle includes a box structure made of a plurality of separating walls. On the separating walls, a diesel oxidation catalyst unit, a diesel particulate filter unit, and at least one selective catalytic reduction unit can be arranged.
Abstract translation: 公开了一种消除车辆废气的后处理装置，其除去从发动机排出的废气中含有的有害物质。 车辆废气后处理装置包括由多个分隔壁构成的盒结构。 在分离壁上可以设置柴油机氧化催化剂单元，柴油微粒过滤器单元和至少一个选择性催化还原单元。
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