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公开(公告)号：KR101637758B1
公开(公告)日：2016-07-07
申请号：KR1020140172060
申请日：2014-12-03
Applicant: 현대자동차주식회사
CPC classification number: F01N11/00 , F01N3/2066 , F01N3/208 , F01N2560/026 , F01N2610/02 , F01N2900/0416 , F01N2900/1811 , Y02T10/24 , Y02T10/47
Abstract: 본발명은 SCR 시스템의고장진단방법및 고장진단장치에관한것이다. 본발명의일 실시예에따른 SCR 시스템의고장진단방법은린 녹스트랩의작동상태또는우레아탱크의상태중 어느하나이상을감지하는감지단계(S100); 상기감지단계(S100)에서감지된린-녹스트랩또는우레아탱크의상태가 SCR 시스템의정화효율모니터링을차단하기위한조건을충족하는지여부를판단하는판단단계(S200); 및상기판단단계(S200)에서린 녹스트랩또는우레아탱크의상태가 SCR 시스템의정화효율모니터링을차단하기위한조건을충족한다고판단된경우에는 SCR 시스템의정화효율모니터링을차단하는차단단계(S300);를포함한다. 본발명에따르면, 린녹스트랩의상태가재생(DeNOx)상태인경우, 우레아탱크의상태가결빙(Frozen)상태인경우및 우레아탱크의상태가공동(Cavity)발생상태인경우의 SCR 정화효율진단을차단하여 SCR 시스템의고장오감지를방지할수 있다.
Abstract translation: 废气后处理系统的故障诊断方法可以包括检测贫油NOx捕集器的运转状态或尿素罐的状态中的任一个或多个的检测步骤，判定步骤， 在检测步骤中检测到的捕集阱或尿素罐满足相应的条件以阻止废气后处理系统的净化效率的监测，以及阻止对废气后处理系统的净化效率的监测的阻断步骤， 在确定步骤的贫NOx捕集器或尿素罐的状态满足相应条件以阻止废气后处理系统的净化效率的监视。
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公开(公告)号：KR101272937B1
公开(公告)日：2013-06-11
申请号：KR1020110080718
申请日：2011-08-12
Applicant: 현대자동차주식회사
CPC classification number: F02D41/028 , F02D41/029 , F02D2200/0812
Abstract: 본 발명은 질소산화물 흡장 촉매 시스템의 탈황 방법에 관한 것으로, 기설정된 DPF 재생 성공 횟수에 도달하였는지를 판단하는 단계; 상기 기설정된 DPF 재생 성공 횟수에 도달하면 DPF 재생을 종료하고 탈황 모드로 진입하여 탈황을 실시하는 단계; 상기 탈황을 기설정된 시간 동안 실시하면 탈황을 종료하는 단계; 상기 탈황 종료 후에 탈황시 발생한 DPF 내의 PM 포집량을 계산 및 보정하여 차기 DPF 재생 시기를 판단하는 단계; 를 포함하는 초저유황 경유 사용시 질소산화물 흡장 촉매 시스템의 탈황 방법을 제공하여, 초저유황 경유 사용시 배출가스 중에 함유된 미량의 황성분이 전부 LNT 촉매에 피독됨에 따라 탈황 시기를 DPF 재생 성공 횟수 기준으로 하여 결정함으로써 탈황 재생 로직을 단순화할 뿐만 아니라, 이에 따른 ECU의 메모리 용량을 축소시킬 수 있다.
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公开(公告)号：KR1020120059265A
公开(公告)日：2012-06-08
申请号：KR1020100120936
申请日：2010-11-30
Applicant: 현대자동차주식회사
Inventor： 권순형
CPC classification number: F02D41/1446 , F01N3/021 , F01N3/103 , F01N3/2066 , F02D41/0225 , F02D41/024 , F02D41/1447 , F02D41/22 , F02D41/405 , F02D2200/021 , F02D2200/0414 , F02D2200/101 , F02D2200/501 , F02D2200/703 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/44
Abstract: PURPOSE: An exhaust gas after-treatment method is provided to determine operation of RHU(Rapid Heat Up) logic without errors through an OBD(On Board Diagnosis) function. CONSTITUTION: An exhaust gas after-treatment method is as follows. RHU logic rapidly increases the temperature of exhaust gas, which is passing through an exhaust line and discharged from an engine. Whether an operation range is included or not is determined(S200). On/off signals for operating or stopping the RHU logic are detected(S210). An activation state of an injection signal for operating the RGU logic is determined(S220). Errors of a components for operating the RHU are detected(S230). The temperature of the exhaust gas is detected while operating the RHU logic and compared with a model value(S240).
Abstract translation: 目的：提供废气后处理方法，通过OBD（车载诊断）功能确定RHU（快速加热）逻辑的运行无错误。 构成：废气后处理方法如下。 RHU逻辑快速地增加通过排气管线并从发动机排出的废气的温度。 确定是否包括操作范围（S200）。 检测到用于操作或停止RHU逻辑的开/关信号（S210）。 确定用于操作RGU逻辑的注入信号的激活状态（S220）。 检测用于操作RHU的部件的错误（S230）。 在操作RHU逻辑时检测废气的温度并与模型值进行比较（S240）。
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公开(公告)号：KR1020100064888A
公开(公告)日：2010-06-15
申请号：KR1020080123537
申请日：2008-12-05
Inventor： 권순형
CPC classification number: F01N3/033 , F01N3/035 , F01N3/2066 , F01N9/00 , F01N13/009 , F01N2250/02 , F01N2570/12 , F01N2570/14 , Y02A50/2325 , Y02A50/2344 , Y02T10/24 , Y02T10/47
Abstract: PURPOSE: An exhaust gas purification device is provided to rapidly raise the temperature of exhaust gas after a DPF(Diesel Particulate Filter) by simultaneously controlling the flow of exhaust gas from the DPF to the diesel oxidation catalyst and the temperature rise of exhaust gas. CONSTITUTION: An exhaust gas purification device comprises an exhaust pipe, a DPF(40), a diesel oxidation catalyst(70), a selective catalytic reduction apparatus(100), and an injection nozzle(80), which are installed in an exhaust pipe, and a controller. The selective catalytic reduction apparatus is installed after the diesel oxidation catalyst and the DPF. The controller controls an engine and exhaust gas flow in order to raise the temperature of exhaust gas when a heating mode entering condition is satisfied.
Abstract translation: 目的：提供一种废气净化装置，通过同时控制从DPF到柴油机氧化催化剂的废气流量和排气温度的升高，快速提高DPF（柴油颗粒过滤器）后废气的温度。 构成：排气净化装置包括排气管，DPF（40），柴油机氧化催化剂（70），选择性催化还原装置（100）和喷射喷嘴（80），其安装在排气管 ，和控制器。 选择性催化还原装置安装在柴油氧化催化剂和DPF之后。 当满足加热模式进入条件时，控制器控制发动机和废气流，以便提高废气的温度。
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公开(公告)号：KR1020040025046A
公开(公告)日：2004-03-24
申请号：KR1020020056840
申请日：2002-09-18
Applicant: 현대자동차주식회사
Inventor： 권순형
IPC: F02M25/07
CPC classification number: Y02T10/121
Abstract: PURPOSE: An EGR(Exhaust Gas Recirculation) valve for noise reduction is provided to mount a magnetic element to valve contact portions for magnetizing contact portions of an EGR lift valve and a valve seat by the same polarity, thereby preventing the direct contact between the contact portions and improving the noise. CONSTITUTION: An EGR(Exhaust Gas Recirculation) valve for noise reduction includes a seat magnetizing element(30) and a valve magnetizing element(32). The seat magnetizing element is mounted to a valve seat(36) while forming an exhaust port for a valve housing of the EGR valve. The valve magnetizing element is formed by a contact portion of an opening/closing valve(38) for opening or closing the valve seat surface by without any contact. The seat magnetizing element and the valve magnetizing element generate repulsive magnetizing fields to form a buffering area.
Abstract translation: 目的：提供用于降噪的EGR（排气再循环）阀，用于将磁性元件安装到阀接触部分，以使EGR提升阀和阀座的接触部分磁化相同的极性，从而防止接触 部分改善噪音。 构成：用于降噪的EGR（排气再循环）阀包括座椅磁化元件（30）和阀门磁化元件（32）。 座椅磁化元件安装在阀座（36）上，同时形成用于EGR阀的阀壳体的排气口。 阀门磁化元件由开/关阀（38）的接触部分形成，用于通过不接触地打开或关闭阀座表面。 座椅磁化元件和阀门磁化元件产生排斥磁化场以形成缓冲区域。
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Patent Agency Ranking
公开(公告)号：KR1020160066817A
公开(公告)日：2016-06-13
申请号：KR1020140172060
申请日：2014-12-03
Applicant: 현대자동차주식회사
CPC classification number: F01N11/00 , F01N3/2066 , F01N3/208 , F01N2560/026 , F01N2610/02 , F01N2900/0416 , F01N2900/1811 , Y02T10/24 , Y02T10/47 , F01N3/18 , F01N3/20 , F01N3/36
Abstract: 본발명은 SCR 시스템의고장진단방법및 고장진단장치에관한것이다. 본발명의일 실시예에따른 SCR 시스템의고장진단방법은린 녹스트랩의작동상태또는우레아탱크의상태중 어느하나이상을감지하는감지단계(S100); 상기감지단계(S100)에서감지된린-녹스트랩또는우레아탱크의상태가 SCR 시스템의정화효율모니터링을차단하기위한조건을충족하는지여부를판단하는판단단계(S200); 및상기판단단계(S200)에서린 녹스트랩또는우레아탱크의상태가 SCR 시스템의정화효율모니터링을차단하기위한조건을충족한다고판단된경우에는 SCR 시스템의정화효율모니터링을차단하는차단단계(S300);를포함한다. 본발명에따르면, 린녹스트랩의상태가재생(DeNOx)상태인경우, 우레아탱크의상태가결빙(Frozen)상태인경우및 우레아탱크의상태가공동(Cavity)발생상태인경우의 SCR 정화효율진단을차단하여 SCR 시스템의고장오감지를방지할수 있다.
Abstract translation: 本发明涉及一种SCR系统的故障诊断方法和故障诊断装置。 根据本发明的一个示例性实施例，SCR系统的故障诊断方法包括：检测步骤（S100），其检测贫尿圈的一个或多个操作状态或尿素罐的状态; 确定从检测步骤（S100）检测到的贫油匮乏状态或尿素罐的状态是否满足对SCR系统的净化效率的监视的对应条件的判定步骤（S200）。 以及当所述确定步骤（S200）确定所述稀疏捕集阱的状态或所述尿素罐的状态满足相应条件以阻止所述监视的情况下，阻止所述SCR系统的净化效率的监视的阻挡步骤（S300） 的SCR系统的净化效率。 根据本发明，可以防止故障SCR系统的错误检测，因为当贫NOx捕集器的状态是再生状态（DeNox）时，SCR净化效率的诊断被阻止，尿素罐处于冻结状态 状态，尿素罐具有空腔。
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公开(公告)号：KR100974599B1
公开(公告)日：2010-08-06
申请号：KR1020080077581
申请日：2008-08-07
Inventor： 권순형
CPC classification number: F01N3/208 , F01N2240/20 , F01N2560/026 , F01N2560/06 , F01N2560/08 , F01N2560/14 , Y02A50/2325 , Y02T10/24
Abstract: 본 발명은 SCR(Selective Catalytic Reduction) 촉매가 장착되는 차량에서, 배기가스의 유동이 없는 엔진 시동 온/오프의 조건에서 요소 분사량을 제한 제어하여 분사된 요소의 퇴적 결정체가 발생되지 않도록 하는 것이다.
본 발명은 엔진 시동 오프가 검출되면 외기온도와 설정온도를 비교하는 과정, 외기온도가 설정온도 이상이면 도징듀티를 "0%"로 제어하여 요소공급라인에 수용된 액상요소를 그대로 유지시키는 과정, 최종 제어된 요소공급라인의 정보를 저장하여 차기 시동 온에 적용하는 과정을 포함한다.
SCR촉매, 우레아 수용액, NH3, 도징모듈, 분사량 제한-
公开(公告)号：KR1020130017957A
公开(公告)日：2013-02-20
申请号：KR1020110080718
申请日：2011-08-12
Applicant: 현대자동차주식회사
CPC classification number: F02D41/028 , F02D41/029 , F02D2200/0812
Abstract: PURPOSE: A desulfurization method of a nitrogen oxide absorbing catalyst system is provided to simplify the regeneration logic of desulfurization by deciding the desulfurization time based on the number of success in the regeneration of DPF(Diesel Particulate Filter), since all the trace sulfur compounds included in the exhaust gas ejected when the ultra low sulfur diesel oil is used become poison to an LNT(Lean NOx Trap) catalyst. CONSTITUTION: A desulfurization method of a nitrogen oxide absorbing catalyst system comprises the following steps: determining(S110) whether the number of the success of DPF regeneration reaches the predetermined number of the success of DPF regeneration or not; performing(S120) desulfurization by terminating the DPF regeneration when the number of success of the DPF regeneration reaches the predetermined number of success of the DPF regeneration; entering the desulfurization mode; terminating(S160) the desulfurization after performing the desulfurization for the predetermined time; calculating and calibrating(S170) the amount of the collected PM-10(fine dust) in the DPF generated during the time of desulfurization after the termination of the desulfurization; determining the time for the following DPF regeneration; and comparing the temperature(T) of the inside of the nitrogen oxide absorbing catalyst with the deterioration temperature(X) of the nitrogen oxide absorbing catalyst during the time of the desulfurization. [Reference numerals] (S100) Normal NO_X purification operation mode; (S110) Reaching a predetermined number of success of DPF regeneration?; (S120) Immediately entering a desulfurization mode after terminating the DPF regeneration; (S130) Maintaining a lambda(λ) value below a predetermined value; (S140) LNT catalyst inside temperature(T) > Deterioration temperature(X) ?; (S150) Desulfurization for a predetermined time?; (S160) Terminating the desulfurization; (S170) Calculating and correcting the amount of PM collected in a DPF caused by PM produced during the desulfurization; (S180) Switching the mode to a normal lean operation for preventing overheating of catalyst; (S190) LNT catalyst inside temperature(T) ≤ Predetermined temperature(Y)
Abstract translation: 目的：提供一种氮氧化物吸收催化剂体系的脱硫方法，以便通过根据DPF（柴油颗粒过滤器）再生成功次数决定脱硫时间，从而简化脱硫再生逻辑，因为所有痕量硫化合物均包括 当使用超低硫柴油时排出的废气对LNT（Lean NOx Trap）催化剂变毒。 构成：氮氧化物吸收催化剂体系的脱硫方法包括以下步骤：确定（S110）DPF再生的成功次数是否达到DPF再生的成功的预定数量; 当DPF再生的成功次数达到预定次数的DPF再生时，通过终止DPF再生来执行（S120）脱硫; 进入脱硫模式; 在规定时间内终止（S160）脱硫后的脱硫; 计算和校准（S170）脱硫结束后脱硫时产生的DPF中收集的PM-10（细粉尘）的量; 确定以下DPF再生的时间; 并将氮氧化物吸收催化剂的内部的温度（T）与脱硫时的氮氧化物吸收催化剂的劣化温度（X）进行比较。 （附图标记）（S100）正常NO_X净化操作模式; （S110）达到预定数量的DPF再生成功; （S120）终止DPF再生后立即进入脱硫模式; （S130）维持低于预定值的λ（λ）值; （S140）LNT催化剂内部温度（T）>劣化温度（X） （S150）脱硫预定时间？ （S160）终止脱硫; （S170）计算和校正在脱硫期间由PM产生的DPF中收集的PM的量; （S180）将模式切换为正常的稀薄操作，以防止催化剂过热; （S190）LNT催化剂内部温度（T）≤预定温度（Y）
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公开(公告)号：KR1020100018870A
公开(公告)日：2010-02-18
申请号：KR1020080077581
申请日：2008-08-07
Inventor： 권순형
CPC classification number: F01N3/208 , F01N2240/20 , F01N2560/026 , F01N2560/06 , F01N2560/08 , F01N2560/14 , Y02A50/2325 , Y02T10/24
Abstract: PURPOSE: A device for controlling the urea injection quantity of a vehicle and a method thereof are provided to prevent the deposit crystals of sprayed urea by limiting urea injection rate under engine start on/off condition without the flow of exhaust gas. CONSTITUTION: A device for controlling the urea injection quantity of a vehicle comprises an engine(2), SCR(Selective Catalytic Reduction) catalyst(10), a first NOx sensor(12), a second NOx sensor(14), a dosing module(20), a temperature sensor(16), and a controller(18). The SCR catalyst purifies the NOx with the reduction reaction of NH3 and the NOx included in the exhaust gas. The first NOx sensor and the second NOx sensor detect the end-to-end NOx density of the SCR catalyst. The dosing module ejects urea solution at the front end of the SCR catalyst. The temperature sensor detects the temperature of the SCR catalyst.
Abstract translation: 目的：提供一种用于控制车辆的尿素喷射量的装置及其方法，以防止在发动机起动/关闭状态下限制尿素喷射速度而不排出废气的情况下喷射尿素的沉积物。 构成：用于控制车辆的尿素喷射量的装置包括发动机（2），SCR（选择性催化还原）催化剂（10），第一NOx传感器（12），第二NOx传感器（14），配量模块 （20），温度传感器（16）和控制器（18）。 SCR催化剂通过NH 3和废气中包含的NOx的还原反应来净化NOx。 第一NOx传感器和第二NOx传感器检测SCR催化剂的端对端NO x密度。 计量模块在SCR催化剂的前端喷射尿素溶液。 温度传感器检测SCR催化剂的温度。
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公开(公告)号：KR101251515B1
公开(公告)日：2013-04-05
申请号：KR1020100120936
申请日：2010-11-30
Applicant: 현대자동차주식회사
Inventor： 권순형
CPC classification number: F02D41/1446 , F01N3/021 , F01N3/103 , F01N3/2066 , F02D41/0225 , F02D41/024 , F02D41/1447 , F02D41/22 , F02D41/405 , F02D2200/021 , F02D2200/0414 , F02D2200/101 , F02D2200/501 , F02D2200/703 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/44
Abstract: 본 발명의 실시예에 따른 배기가스 후처리 방법은, 대기압, 차속, 엔진회전수, 흡기온, 냉각수온, 기어단수, 연료분사량, 및 배기가스온도를 포함하는 설정된 운전변수가, 엔진에서 배출되어 배기라인을 지나는 배기가스의 온도를 급속히 상승시키기 위한 래피드힛업(RHU: rapid heat up) 로직을 모니터링하기 위한 설정된 운전영역에 해당되는지를 판단하는 단계; 상기 래피드힛업로직을 수행하거나 중단하기 위한 온/오프 신호를 감지하는 단계; 상기 래피드힛업로직을 수행시키기 위한 인젝션신호가 활성화되었는지 판단하는 단계; 상기 래피드힛업로직을 수행하기 위한 부품의 에러를 감지하는 단계; 및 상기 래피드힛업로직이 수행되는 동안에 배기가스의 온도를 감지하고, 모델값과 비교하는 단계;를 포함한다.
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