公开(公告)号：US20120083989A1

公开(公告)日：2012-04-05

申请号：US13236346

申请日：2011-09-19

申请人： Kyoungchan Han ,  Sunghwan Cho ,  Myoungho Sunwoo ,  Seungsuk Oh ,  Jongsuk Lim ,  Jaesung Chung ,  Kangyoon Lee

发明人： Kyoungchan Han ,  Sunghwan Cho ,  Myoungho Sunwoo ,  Seungsuk Oh ,  Jongsuk Lim ,  Jaesung Chung ,  Kangyoon Lee

IPC分类号： G01M15/04

CPC分类号： F02D35/023 ,  F02D35/028 ,  F02D41/2432

摘要： A combustion phase detection method is able to reduce exhaust gas and to improve combustion stability, to compensate injection and ignition delay time between combustion chambers and between cycles, and to detect a combustion phase in real time such that a heat generation rate and a heat release can be effectively calculated at an early state of the combustion by using a combustion pressure and a motoring pressure difference of an engine not affected by an offset value of the cylinder pressure. The combustion phase detection method of an engine may include detecting a combustion phase according to fuel injection timing by using a specific point of DHdP that is calculated by the following heat release equation: DHdP:∫1/γ−1VdPdiff/dθdθ. Here, Pdiff is a difference (Pdiff=P−Pmotoring) between a cylinder measure combustion pressure (P) and a motoring pressure (Pmotoring).

摘要翻译： 燃烧相位检测方法能够减少废气并提高燃烧稳定性，以补偿燃烧室之间和循环之间的喷射和点火延迟时间，并实时检测燃烧阶段，使得发热速率和热释放 可以通过使用不受气缸压力的偏移值影响的发动机的燃烧压力和发动机压差在燃烧的早期状态下有效地计算。 发动机的燃烧相位检测方法可以包括通过使用由以下放热方程计算的DHdP的特定点来根据燃料喷射正时来检测燃烧相位：DHdP：∫1/γ-1VdPdiff / d＆thetas; d＆amp; 这里，Pdiff是气缸测量燃烧压力（P）和启动压力（Pmotoring）之间的差值（Pdiff = P-Pmotoring）。

公开(公告)号：US08781711B2

公开(公告)日：2014-07-15

申请号：US13239087

申请日：2011-09-21

申请人： Kyoungchan Han ,  Sunghwan Cho ,  Myoungho Sunwoo ,  Seungsuk Oh ,  Jongsuk Lim ,  Jaesung Chung ,  Kangyoon Lee

发明人： Kyoungchan Han ,  Sunghwan Cho ,  Myoungho Sunwoo ,  Seungsuk Oh ,  Jongsuk Lim ,  Jaesung Chung ,  Kangyoon Lee

IPC分类号： F02D35/02 ,  F02P5/153 ,  F02P5/12

CPC分类号： F02P5/153 ,  F02D35/023 ,  F02D35/028

摘要： A combustion phase detection method of an engine has the advantages of being able to reduce exhaust gas and to improve combustion stability, to compensate injection and ignition delay time between combustion chambers and between cycles, and to detect a combustion phase in real time such that a heat generation rate and heat release can be effectively calculated in an early state of combustion with a simple calculation method to control combustion of an engine, by using a combustion pressure and a motoring pressure difference of an engine not affected by an offset value of the cylinder pressure. For this, a combustion phase detection method may include detecting a combustion phase by using a specific point of DRdV as follows: DR ⁢ ⅆ V ⁢ : ⁢ ⁢ P diff ⁢ ⅆ V ⅆ θ max ( P diff ⁢ ⅆ V ⅆ θ ) Here, the Pdiff (P−Pmotoring) is a difference between a cylinder measure combust pressure (P) and a motoring pressure (Pmotoring), and V is a combustion chamber volume.

摘要翻译： 发动机的燃烧相位检测方法具有能够减少废气并提高燃烧稳定性，补偿燃烧室之间和循环之间的喷射和点火延迟时间，并实时检测燃烧阶段的优点， 可以通过简单的计算方法在燃烧的早期状态下有效地计算发热量和放热量，以通过使用不受气缸偏移值影响的发动机的燃烧压力和发动机压力差来控制发动机的燃烧 压力。 为此，燃烧相位检测方法可以包括通过使用DRdV的特定点来检测燃烧阶段，如下所示：DR＆CenterDot; V：cur P diff＆CenterDot; V＆ max（P diffⅆⅆⅆas as as as as as as as as as as as as as as as））））））））），，，，，））））and and and and and and and and and and and and and and and and and and and and

公开(公告)号：US20070204682A1

公开(公告)日：2007-09-06

申请号：US11642288

申请日：2006-12-19

申请人： Myoungho Sunwoo ,  Kangyoon Lee

发明人： Myoungho Sunwoo ,  Kangyoon Lee

IPC分类号： G01L3/26 ,  G01F1/00 ,  G01M19/00

CPC分类号： F02D41/365 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  F02D41/401 ,  Y02T10/44

摘要： Disclosed herein is a method of estimating the start of combustion (SOC) in a diesel engine using a difference between an in-cylinder combustion pressure and a motoring pressure so as to effectively control the combustion in a combustion chamber. The method of the present invention features that it comprises the steps of: detecting a DP value defined as a difference pressure between an in-cylinder combustion pressure and a motoring pressure; detecting a crank angle (CADPxx) at a point where the detected DP value equals a specific pressure; defining an angle difference between the start of combustion (SOC) and the crank angle (CADPxx) as a detected delay angle (ΔCADD) and determining the detected delay angle (ΔCADD) through an experiment of measuring the start of combustion (SOC) and the crank angle (CADPxx); and detecting the SOC using the following Equation: SOC=CADPxx−ΔCADD, whereby the SOC can be estimated simply and accurately, and that the detected delay angle (ΔCADD) is defined as a simple function for the engine speed.

摘要翻译： 这里公开了使用缸内燃烧压力和驾驶压力之间的差来估计柴油发动机的起动燃烧（SOC）的方法，以有效地控制燃烧室中的燃烧。 本发明的方法的特征在于它包括以下步骤：检测定义为缸内燃烧压力和驾驶压力之间的差压的DP值; 在检测到的DP值等于特定压力的点处检测曲柄角度（CA＆gt; DPxx ）; 将所述燃烧开始时间（SOC）和所述曲轴转角（CA）之间的角度差定义为检测到的延迟角度（ΔCA），并确定所述检测到的延迟角度 通过测量燃烧开始（SOC）和曲柄角度（CADPxx）的实验，可以得到DeltaCA DD。 并且使用以下等式来检测SOC：SOC = CA×D×D-DTATA DD，由此可以简单且准确地估计SOC，并且检测到的延迟角（DeltaCA < SUB> DD ）被定义为发动机转速的简单函数。

公开(公告)号：US07401504B2

公开(公告)日：2008-07-22

申请号：US11642288

申请日：2006-12-19

申请人： Myoungho Sunwoo ,  Kangyoon Lee

发明人： Myoungho Sunwoo ,  Kangyoon Lee

IPC分类号： G01M15/00

CPC分类号： F02D41/365 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  F02D41/401 ,  Y02T10/44

摘要： Disclosed herein is a method of estimating the start of combustion (SOC) in a diesel engine using a difference between an in-cylinder combustion pressure and a motoring pressure so as to effectively control the combustion in a combustion chamber. The method of the present invention features that it comprises the steps of: detecting a DP value defined as a difference pressure between an in-cylinder combustion pressure and a motoring pressure; detecting a crank angle (CADPxx) at a point where the detected DP value equals a specific pressure; defining an angle difference between the start of combustion (SOC) and the crank angle (CADPxx) as a detected delay angle (ΔCADD) and determining the detected delay angle (ΔCADD) through an experiment of measuring the start of combustion (SOC) and the crank angle (CADPxx); and detecting the SOC using the following Equation: SOC=CADPxx−ΔCADD, whereby the SOC can be estimated simply and accurately, and that the detected delay angle (ΔCADD) is defined as a simple function for the engine speed.

摘要翻译： 这里公开了使用缸内燃烧压力和驾驶压力之间的差来估计柴油发动机的起动燃烧（SOC）的方法，以有效地控制燃烧室中的燃烧。 本发明的方法的特征在于它包括以下步骤：检测定义为缸内燃烧压力和驾驶压力之间的差压的DP值; 在检测到的DP值等于特定压力的点处检测曲柄角度（CA＆gt; DPxx ）; 将所述燃烧开始时间（SOC）和所述曲轴转角（CA）之间的角度差定义为检测到的延迟角度（ΔCA），并确定所述检测到的延迟角度 通过测量燃烧开始（SOC）和曲柄角度（CADPxx）的实验，可以得到DeltaCA DD。 并且使用以下等式来检测SOC：SOC = CA×D×D-DTATA DD，由此可以简单且准确地估计SOC，并且检测到的延迟角（DeltaCA < SUB> DD ）被定义为发动机转速的简单函数。

公开(公告)号：US20120138027A1

公开(公告)日：2012-06-07

申请号：US13210571

申请日：2011-08-16

申请人： Kihoon NAM ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

发明人： Kihoon NAM ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

IPC分类号： F02M25/07 ,  F02D41/26 ,  F02D28/00

CPC分类号： F02D41/0077 ,  F02D41/0072 ,  F02D41/18 ,  Y02T10/47

摘要： An EGR system control method of an engine may include calculating a target mass flux ({dot over (m)}egrd) of EGR gas flowing an EGR line, calculating an effective flowing area (EFA) of an EGR valve disposed on the EGR line, calculating an EGR flow sensitivity by dividing the target mass flux with the effective flowing area, and controlling a real opening rate of the EGR valve by applying the EGR flow sensitivity to a target opening rate of the EGR valve. Accordingly, a gain value is varied on a real time according to an effective flowing area of the EGR valve and a target mass flux of EGR gas such that real opening rate of an EGR valve is accurately and precisely controlled.

摘要翻译： 发动机的EGR系统控制方法可以包括计算流过EGR管线的EGR气体的目标质量通量（{dot over（m）} egrd），计算设置在EGR管线上的EGR阀的有效流动面积（EFA） 通过将目标质量流量除以有效流动面积来计算EGR流量灵敏度，并且通过将EGR流量灵敏度应用于EGR阀的目标开度来控制EGR阀的实际开度。 因此，根据EGR阀的有效流动面积和EGR气体的目标质量流量，实时地改变增益值，使得EGR阀的实际开启率被精确和精确地控制。

公开(公告)号：US09097215B2

公开(公告)日：2015-08-04

申请号：US13236424

申请日：2011-09-19

申请人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

发明人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

IPC分类号： F02M25/07 ,  F02D41/00 ,  F02D41/18 ,  F02D41/14

CPC分类号： F02M25/0754 ,  F02D41/0072 ,  F02D41/18 ,  F02D2041/1434 ,  F02D2200/0402 ,  F02M26/15 ,  F02M26/23 ,  F02M26/47 ,  Y02T10/47

摘要： An exhaust gas control method of an engine may include calculating a target mass flux of EGR gas by using air mass entering into a cylinder and target air mass supplied into the engine, calculating a target effective flow area (EFAd) of the EGR valve by using the target mass flux of the EGR gas and front/rear condition of the EGR valve, and calculating a valve opening rate of the EGR valve by using a predetermined curve fitting formula and the target effective flow area (EFAd).

摘要翻译： 发动机的排气控制方法可以包括通过使用进入气缸的空气质量和提供给发动机的目标空气质量来计算EGR气体的目标质量通量，通过使用计算EGR阀的目标有效流动面积（EFAd） EGR气体的目标质量通量和EGR阀的前/后状态，并且通过使用预定的曲线拟合公式和目标有效流动面积（EFAd）来计算EGR阀的阀打开速率。

公开(公告)号：US08738273B2

公开(公告)日：2014-05-27

申请号：US13210571

申请日：2011-08-16

申请人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

发明人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

IPC分类号： F02D41/24

CPC分类号： F02D41/0077 ,  F02D41/0072 ,  F02D41/18 ,  Y02T10/47

摘要： An EGR system control method of an engine may include calculating a target mass flux ({dot over (m)}egrd) of EGR gas flowing an EGR line, calculating an effective flowing area (EFA) of an EGR valve disposed on the EGR line, calculating an EGR flow sensitivity by dividing the target mass flux with the effective flowing area, and controlling a real opening rate of the EGR valve by applying the EGR flow sensitivity to a target opening rate of the EGR valve. Accordingly, a gain value is varied on a real time according to an effective flowing area of the EGR valve and a target mass flux of EGR gas such that real opening rate of an EGR valve is accurately and precisely controlled.

摘要翻译： 发动机的EGR系统控制方法可以包括计算流过EGR管线的EGR气体的目标质量通量（{dot over（m）} egrd），计算设置在EGR管线上的EGR阀的有效流动面积（EFA） 通过将目标质量流量除以有效流动面积来计算EGR流量灵敏度，并且通过将EGR流量灵敏度应用于EGR阀的目标开度来控制EGR阀的实际开度。 因此，根据EGR阀的有效流动面积和EGR气体的目标质量流量，实时地改变增益值，使得EGR阀的实际开启率被精确和精确地控制。

公开(公告)号：US20120138028A1

公开(公告)日：2012-06-07

申请号：US13236424

申请日：2011-09-19

申请人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

发明人： Kihoon Nam ,  Myoungho Sunwoo ,  Minkwang Lee ,  Yeongseop Park ,  Byounggul Oh

IPC分类号： F02B47/08

CPC分类号： F02M25/0754 ,  F02D41/0072 ,  F02D41/18 ,  F02D2041/1434 ,  F02D2200/0402 ,  F02M26/15 ,  F02M26/23 ,  F02M26/47 ,  Y02T10/47

摘要： An exhaust gas control method of an engine may include calculating a target mass flux of EGR gas by using air mass entering into a cylinder and target air mass supplied into the engine, calculating a target effective flow area (EFAd) of the EGR valve by using a target mass flux of the EGR gas and front/rear condition of the EGR valve, and calculating a valve opening rate of the EGR valve by using a predetermined curve fitting formula and the target effective flow area (EFAd).Accordingly, a target mass flux of EGR gas flowing an EGR line is calculated to be applied an opening rate of the EGR valve thereby such that a flux of the EGR gas precisely and quickly is control.

摘要翻译： 发动机的排气控制方法可以包括通过使用进入气缸的空气质量和提供给发动机的目标空气质量来计算EGR气体的目标质量通量，通过使用计算EGR阀的目标有效流动面积（EFAd） EGR气体的目标质量通量和EGR阀的前后状态，并且通过使用预定的曲线拟合公式和目标有效流动面积（EFAd）来计算EGR阀的开阀率。 因此，计算流过EGR管线的EGR气体的目标质量通量，从而以EGR阀的开度被施加，使得EGR气体的流量精确而快速地被控制。