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公开(公告)号：KR100936978B1
公开(公告)日：2010-01-15
申请号：KR1020070113221
申请日：2007-11-07
Inventor： 정재윤
CPC classification number: F02D41/0007 , F01N3/035 , F02D41/029 , F02D41/1447 , F02D41/1454 , F02D41/1497 , F02D41/221 , F02D2041/0265 , F02D2250/26 , Y02T10/144
Abstract: 본 발명은 디젤엔진에서 터보차저 전단에 형성되는 배기가스의 온도를 모델링을 통해 검출하고, 모델링된 배기가스의 온도에 따라 엔진 출력을 제한 제어하는 것이다.
본 발명은 시동 온 상태에서 엔진 회전수와 람다센서의 신호를 검출하는 과정, 엔진 회전수별 람다센서 신호와 배기온도의 상관관계를 이용하여 터보차저 전단의 배기가스 온도를 모델링하는 과정, 모델링된 배기가스 온도가 설정된 제1기준값을 초과하였는지 판단하는 과정, 배기가스 온도가 제1기준값을 초과하였으면 배가가스 온도의 과다 상승으로 인식하여 엔진 출력제한 제어 및 CPF의 재생을 중지시키는 과정, 엔진 출력 제한 제어에 의해 모델링된 배기가스 온도가 설정된 제2기준값 미만이면 엔진 출력 제한 제어를 해제하고, 조건이 충족되는 경우 CPF의 재생 제어를 실행하는 과정을 포함한다.
모델링, 람다센서, 디젤엔진, 터보차저, 배가가스 온도-
公开(公告)号：KR1020090050246A
公开(公告)日：2009-05-20
申请号：KR1020070116585
申请日：2007-11-15
Inventor： 정재윤
CPC classification number: Y02T10/40 , F02D41/222 , F02D2200/501
Abstract: 본 발명은 양산라인에서 엔진의 정상 작동 여부 및 엔진 부품들의 고장 여부를 진단시에 전방 및 후방 산소센서의 고장 진단을 함께 실시하는 전방 및 후방 산소센서의 고장 진단 방법에 관한 것이다.
배기가스, 온도, 산소센서, 전압, 고장, 엔진 회전수, 연료분사량, 냉각 수온, 차속-
公开(公告)号：KR1020090047183A
公开(公告)日：2009-05-12
申请号：KR1020070113221
申请日：2007-11-07
Inventor： 정재윤
CPC classification number: F02D41/0007 , F01N3/035 , F02D41/029 , F02D41/1447 , F02D41/1454 , F02D41/1497 , F02D41/221 , F02D2041/0265 , F02D2250/26 , Y02T10/144
Abstract: 본 발명은 디젤엔진에서 터보차저 전단에 형성되는 배기가스의 온도를 모델링을 통해 검출하고, 모델링된 배기가스의 온도에 따라 엔진 출력을 제한 제어하는 것이다.
본 발명은 시동 온 상태에서 엔진 회전수와 람다센서의 신호를 검출하는 과정, 엔진 회전수별 람다센서 신호와 배기온도의 상관관계를 이용하여 터보차저 전단의 배기가스 온도를 모델링하는 과정, 모델링된 배기가스 온도가 설정된 제1기준값을 초과하였는지 판단하는 과정, 배기가스 온도가 제1기준값을 초과하였으면 배가가스 온도의 과다 상승으로 인식하여 엔진 출력제한 제어 및 CPF의 재생을 중지시키는 과정, 엔진 출력 제한 제어에 의해 모델링된 배기가스 온도가 설정된 제2기준값 미만이면 엔진 출력 제한 제어를 해제하고, 조건이 충족되는 경우 CPF의 재생 제어를 실행하는 과정을 포함한다.
모델링, 람다센서, 디젤엔진, 터보차저, 배가가스 온도-
公开(公告)号：KR1020090012907A
公开(公告)日：2009-02-04
申请号：KR1020070077135
申请日：2007-07-31
Inventor： 정재윤
Abstract: A pulsation noise reduction apparatus and method of a diesel vehicle are provided to reduce the pulsation noise generation in the fuel system by controlling the opening degree of the pressure control valve depending on the fuel amount and engine rpm. A pulsation noise reduction method of a diesel vehicle comprises the steps of: starting the engine(S101), detecting information on the vehicle speed, coolant temperature, engine rpm, and fuel amount(S102), determining whether the vehicle speed and coolant temperature meet the pulsation noise reduction control condition(S103,S104), extracting the control valve of a pressure control valve according to the engine rpm and duel amount from set up two dimensional map when the pulsation noise reduction control condition is satisfied(S105,S106), and adjusting the opening degree of the pressure control valve within 10% by using an actuator(S107).
Abstract translation: 提供一种柴油车辆的脉动降噪装置和方法，通过根据燃料量和发动机转速控制压力控制阀的开度来减少燃料系统中的脉动噪声产生。 柴油车辆的脉动降噪方法包括以下步骤：启动发动机（S101），检测关于车速，冷却剂温度，发动机转速和燃料量的信息（S102），确定车速和冷却剂温度是否相符 脉动噪声降低控制条件（S103，S104），当满足脉动噪声降低控制条件时，从设定二维图提取压力控制阀的控制阀，根据发动机转速和对抗量（S105，S106） 并通过使用致动器将压力控制阀的开度调整在10％以内（S107）。
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Patent Agency Ranking
公开(公告)号：KR1020090005613A
公开(公告)日：2009-01-14
申请号：KR1020070068795
申请日：2007-07-09
Inventor： 정재윤
CPC classification number: G01N27/4175 , F02D41/146 , F02D41/222 , Y02T10/40
Abstract: A nitrogen oxide sensor break-down decision method and a selective reduction catalyst system for implementing the same are provided to determine a trouble whether or not of the nitrogen oxide sensor by deciding increment or the reduction of the sensor signal. A nitrogen oxide sensor break-down decision method performs the followings: a step for comparing amount of the nitrogen oxide detected by the set values and sensor of the nitrogen oxide included in the exhaust gas(S210); a step that whether the engine is the steady- state or not determines if the range within in which the difference of the value found from the set value and sensor of the nitrogen oxide is set up (S230); a step controlling so that it changes the set up condition and the nitrogen oxide increases or the condition reduce if the engine is the steady- state(S250); a step determining whether the signal of sensor increases and the signal reduces or not when nitrogen oxide increases or reduces; and a step determining sensor breaks down in case nitrogen oxide doesn't increase or reduce(S290).
Abstract translation: 提供氮氧化物传感器分解判定方法和用于实施氮氧化物传感器的选择还原催化剂体系，以通过决定增量或传感器信号的减少来确定氮氧化物传感器的故障。 氮氧化物传感器分解判定方法执行以下步骤：将由所述设定值检测出的氮氧化物的量与排气中包含的氮氧化物的传感器进行比较的步骤（S210）。 发动机是否处于稳定状态的步骤是否确定是否建立了从设定值和氮氧化物的传感器发现的值的差异范围（S230）。 如果发动机处于稳态，则其改变设定条件和氮氧化物增加或条件减少的步骤（S250）; 当氮氧化物增加或减少时，确定传感器的信号是否增加并且信号减小的步骤; 并且在氮氧化物不增加或减少的情况下，步骤确定传感器分解（S290）。
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公开(公告)号：KR100851474B1
公开(公告)日：2008-08-08
申请号：KR1020070086004
申请日：2007-08-27
Inventor： 정재윤
CPC classification number: Y02A50/2325 , Y02T10/47 , F01N11/00 , F01N3/2066 , F01N9/00 , F01N2550/02 , F01N2560/02 , F01N2560/14 , F01N2610/02 , F01N2900/0416
Abstract: A method for detecting improper injection of UREA in an SCR system is provided to prevent vehicle cost from increasing and improve the technology competitiveness by determining the propriety of UREA injected into SCR(Selective Catalyst Reduction) catalyst. A method for detecting improper injection of UREA in an SCR system comprises the steps of calculating a ratio of NO and NO2 of NOx of exhaust gas introduced into SCR catalyst(S101), calculating the model efficiency of the SCR catalyst using the calculated ratio and temperature of the SCR catalyst(S102), and calculating the substantial efficiency of the SCR catalyst by monitoring signals of an NOx sensor(S103). The efficiency calculated in the step(S102) is compared with the efficiency calculated in the step(S103)(S104). A UREA recharge driver inducement is performed or not according to the comparison result in the step(S104)(S105,S106).
Abstract translation: 提供了一种用于检测SCR系统中不正确注入UREA的方法，以通过确定注入SCR（选择性催化还原）催化剂的UREA的适当性来防止车辆成本增加并提高技术竞争力。 一种用于检测SCR系统中不正确注入UREA的方法，包括计算引入SCR催化剂的废气中NO和NO2的比例（S101）的步骤，使用计算的比率和温度计算SCR催化剂的模型效率 的SCR催化剂（S102），并且通过监测NOx传感器的信号来计算SCR催化剂的实质效率（S103）。 将步骤（S102）中计算出的效率与步骤（S103）中计算出的效率进行比较（S104）。 根据步骤（S104）中的比较结果（S105，S106），执行UREA充电驱动器诱导。
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公开(公告)号：KR100836338B1
公开(公告)日：2008-06-09
申请号：KR1020070030648
申请日：2007-03-29
Inventor： 정재윤
CPC classification number: Y02T10/47 , F01N11/00 , B60Y2400/90 , F01N3/2066 , F01N9/00 , F01N2550/00
Abstract: A method of detecting an operation of a dosing injector in a urea SCR system is provided to easily detect malfunction of the dosing injector by measuring the temperature of exhaust gas. A method of detecting an operation of a dosing injector in a urea SCR(Selective Catalyst Reduction) system comprises the step of determining if the amount of dosing exceeds 500g/hr which is calculated based on the temperature of nitrogen oxides discharged from the urea SCR system and the catalyst. IF the amount of dosing exceeds 500g/ht, an electric signal is applied to the dosing injector through a control unit. If a differential temperature of exhaust gas is larger than 20degrees before and after the application of electrical signal, the dosing injector is determined as normal. The temperature drop is smaller than 20degrees and the amount of discharged nitrogen oxides is larger than 2000ppm, the dosing injector is determined as abnormal.
Abstract translation: 提供了一种检测尿素SCR系统中的剂量注射器的操作的方法，以通过测量废气的温度来容易地检测给药注射器的故障。 在尿素SCR（选择性催化剂还原））系统中检测给药注射器的操作的方法包括以下步骤：基于从尿素SCR系统排出的氮氧化物的温度计算出的给药量是否超过500g / hr 和催化剂。 如果给药量超过500g / ht，则通过控制单元将电信号施加到给药注射器。 如果在施加电信号之前和之后废气的差别大于20度，则计量喷射器被正常地确定。 温度下降小于20度，排出的氮氧化物的量大于2000ppm，计量注射器被确定为异常。
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公开(公告)号：KR1020140089018A
公开(公告)日：2014-07-14
申请号：KR1020120158619
申请日：2012-12-31
Inventor： 정재윤
CPC classification number: Y02A50/2322 , Y02T10/47 , F01N3/208 , B60Y2400/30 , B60Y2400/90 , F01N2610/02 , F01N2610/142
Abstract: Disclosed are a method and system for forcibly leading a driver of a vehicle. The method includes the steps of determining whether or not the number of starting an engine reaches a predetermined value in a state in which a driver warning operates and the changed amount of an element level is less than the changed amount of a set level; determining whether or not a difference between water temperature at start time and stored water temperature is less than set water temperature if the number of starting the engine reaches the predetermined value; and prohibiting restart of the engine if the difference between water temperature at the start time and stored water temperature is less than set water temperature.
Abstract translation: 公开了强制引导车辆驾驶员的方法和系统。 该方法包括以下步骤：在驾驶员警告操作的状态和元件级的改变量小于设定水平的变化量的情况下，判定起动发动机的数量是否达到预定值; 如果起动发动机的数量达到预定值，则确定开始时的水温与存储的水温之间的差是否小于设定水温; 如果开始时间的水温与存储的水温之间的差值小于设定的水温，则禁止重新启动发动机。
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公开(公告)号：KR101416408B1
公开(公告)日：2014-07-09
申请号：KR1020120158618
申请日：2012-12-31
Inventor： 정재윤
CPC classification number: F01N11/002 , B60W50/00 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2610/02 , F01N2900/1814 , F01N2900/1818 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: Disclosed are a method and system of determining the failure of a urea quality sensor. The method includes the steps of determining whether a urea temperature is higher than a predetermined temperature; and, if the urea temperature is higher than the predetermined temperature, determining whether a vehicle speed is higher than a predetermined vehicle speed; and, if the vehicle speed is higher than the predetermined vehicle speed, determining whether a difference between the current urea quality and the previous urea quality is greater than a predetermined urea quality; and storing a failure code if the difference between the current urea quality and the previous urea quality is greater than the predetermined urea quality.
Abstract translation: 公开了一种确定尿素质量传感器故障的方法和系统。 该方法包括以下步骤：确定尿素温度是否高于预定温度; 并且如果所述尿素温度高于所述规定温度，则判断车速是否高于规定车速; 并且如果车速高于预定车速，则确定当前尿素质量和先前尿素质量之间的差是否大于预定尿素质量; 并且如果当前尿素质量和先前的尿素质量之间的差异大于预定的尿素质量，则存储故障代码。
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