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公开(公告)号：US09162184B2
公开(公告)日：2015-10-20
申请号：US13807408
申请日：2011-08-22
申请人： Kazunari Ide , Yoshikatsu Ikawa
发明人： Kazunari Ide , Yoshikatsu Ikawa
IPC分类号： F01N3/025 , F01N3/00 , F01N3/035 , B01D53/94 , F01N9/00 , F02D41/02 , F02D41/14 , F01N13/00 , F01N3/10 , F02B37/00
CPC分类号： B01D53/9495 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N2900/0408 , F01N2900/0418 , F01N2900/1602 , F02B37/00 , F02D41/029 , F02D41/1445 , F02D2041/1409 , F02D2041/141 , F02D2041/1422 , F02D2200/0802 , Y02T10/47
摘要： An exhaust gas purification system includes a feedforward controller 47, a feedback controller 49 outputting a correcting variable for achieving a target temperature of DPF 7, and a variable adding unit 51 that adds the correcting variable output from the feedback controller 49 to a basic variable output from the feedforward controller 47 to compute a manipulated variable. The system further includes either one of an integrator resetter 55 that resets the integral value of an integrator that forms the feedback controller 49 when the amount of exhaust gas has suddenly dropped, and a basic variable calculating unit that calculates the basic variable to be output from the feedforward controller based on a signal representing the flow rate of exhaust gas.
摘要翻译： 排气净化系统包括前馈控制器47，输出用于实现DPF 7的目标温度的校正变量的反馈控制器49以及将从反馈控制器49输出的校正变量与基本变量输出相加的变量加法单元51 从前馈控制器47计算操纵变量。 该系统还包括积分器复位器55中的任何一个，当排气量突然下降时，积分器复位器55复位形成反馈控制器49的积分器的积分值;以及基本变量计算单元，其计算从 基于表示废气流量的信号的前馈控制器。
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公开(公告)号：US08869606B2
公开(公告)日：2014-10-28
申请号：US13386142
申请日：2010-06-11
CPC分类号： F01N9/002 , F01N3/021 , F01N2900/1606 , F02D41/1456 , F02D41/1467 , F02D2200/0812 , Y02T10/20 , Y02T10/47
摘要： Providing a PM emission amount estimation device for the diesel engine wherein the accuracy of the correction in correcting the basic level of the PM emission amount by use of the PM emission amount estimation map can be enhanced; and, the PM emission amount particularly during the transient state of the engine operation condition can be accurately computed so as to estimate, with high precision, the PM emission amount and the PM emission accumulated-amount (integrated amount) during the whole engine operation conditions including the transient state as well as the steady state. A PM emission amount estimation device for estimating the amount of the PM for estimating the amount of the PM that is emitted from a diesel engine and collected by a DPF provided in the exhaust gas passage of the engine, the device including, but not limited to: a PM emission amount estimation base-map 3 with which the base PM emission amount is computed in response to the operation condition of the engine; a PM emission amount estimation correction-map 5 that determines a correction factor for correcting the base PM emission amount computed by the PM emission amount estimation base-map 3, the correction factor being determined in response to the transient engine operation condition; a transient state judgment device 7 that judges that the engine is operated in a transient operation condition based on the change of the air excess ratio regarding the engine; a PM emission amount computation device 9 that corrects the computed base PM emission amount by multiplying the computed base PM emission amount by the correction factor computed with the PM emission amount estimation correction-map 5 only in a case where it is judged, by the transient state judgment device 7, that the engine is in a transient operation condition whereas the base PM emission amount is directly outputted in a case where it is judged that the engine is in a steady operation condition.
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公开(公告)号：US20130108511A1
公开(公告)日：2013-05-02
申请号：US13807408
申请日：2011-08-22
申请人： Kazunari Ide , Yoshikatsu Ikawa
发明人： Kazunari Ide , Yoshikatsu Ikawa
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N2900/0408 , F01N2900/0418 , F01N2900/1602 , F02B37/00 , F02D41/029 , F02D41/1445 , F02D2041/1409 , F02D2041/141 , F02D2041/1422 , F02D2200/0802 , Y02T10/47
摘要： An exhaust gas purification system includes a feedforward controller 47, a feedback controller 49 outputting a correcting variable for achieving a target temperature of DPF 7, and a variable adding unit 51 that adds the correcting variable output from the feedback controller 49 to a basic variable output from the feedforward controller 47 to compute a manipulated variable. The system further includes either one of an integrator resetter 55 that resets the integral value of an integrator that forms the feedback controller 49 when the amount of exhaust gas has suddenly dropped, and a basic variable calculating unit that calculates the basic variable to be output from the feedforward controller based on a signal representing the flow rate of exhaust gas.
摘要翻译： 排气净化系统包括前馈控制器47，输出用于实现DPF 7的目标温度的校正变量的反馈控制器49以及将从反馈控制器49输出的校正变量与基本变量输出相加的变量加法单元51 从前馈控制器47计算操纵变量。 该系统还包括积分器复位器55中的任何一个，当排气量突然下降时，积分器复位器55复位形成反馈控制器49的积分器的积分值;以及基本变量计算单元，其计算从 基于表示废气流量的信号的前馈控制器。
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公开(公告)号：US20130177482A1
公开(公告)日：2013-07-11
申请号：US13807191
申请日：2011-08-22
申请人： Yoshikatsu Ikawa , Hiroyuki Endo , Kazunari Ide , Ko Takayanagi
发明人： Yoshikatsu Ikawa , Hiroyuki Endo , Kazunari Ide , Ko Takayanagi
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , F01N3/106 , F01N2900/1602 , F02D41/0235 , F02D41/0245 , F02D41/025 , F02D41/029 , F02D41/1401 , F02D41/1446 , F02D41/405 , F02D2041/1409 , F02D2041/141 , F02D2200/0802 , F02D2200/101 , Y02T10/26 , Y02T10/44
摘要： A DPF target temperature setting unit has a temperature increase rate setting portion which sets a temperature increase change rate such that, until a target set temperature at which PM is burnt is reached after the start of late post injection, the temperature increase change rate is reduced in accordance with an increase in temperature or a period of time elapsed since the start of the late post injection, a stepwise temperature increase change rate in the temperature increase rate setting portion includes two stages of a first-stage change rate A and a second-stage change rate B lower than the first-stage change rate, and a target temperature of the DPF temperature is calculated by using the temperature increase rate of the temperature increase rate setting portion.
摘要翻译： DPF目标温度设定单元具有升温速度设定部，其设定升温变化率，使得在后期喷射开始后到达PM被燃烧的目标设定温度之前，升温变化率降低 根据从后期喷射开始起经过的温度或经过的时间段，温度上升率设定部分的逐步升温变化率包括第一阶段变化率A和第二阶段变化率A， 阶段变化率B低于第一阶段变化率，并且通过使用升温速率设定部的升温速度来计算DPF温度的目标温度。
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公开(公告)号：US08893474B2
公开(公告)日：2014-11-25
申请号：US13807191
申请日：2011-08-22
申请人： Yoshikatsu Ikawa , Hiroyuki Endo , Kazunari Ide , Ko Takayanagi
发明人： Yoshikatsu Ikawa , Hiroyuki Endo , Kazunari Ide , Ko Takayanagi
CPC分类号： B01D53/9495 , F01N3/106 , F01N2900/1602 , F02D41/0235 , F02D41/0245 , F02D41/025 , F02D41/029 , F02D41/1401 , F02D41/1446 , F02D41/405 , F02D2041/1409 , F02D2041/141 , F02D2200/0802 , F02D2200/101 , Y02T10/26 , Y02T10/44
摘要： A DPF target temperature setting unit has a temperature increase rate setting portion which sets a temperature increase change rate such that, until a target set temperature at which PM is burnt is reached after the start of late post injection, the temperature increase change rate is reduced in accordance with an increase in temperature or a period of time elapsed since the start of the late post injection, a stepwise temperature increase change rate in the temperature increase rate setting portion includes two stages of a first-stage change rate A and a second-stage change rate B lower than the first-stage change rate, and a target temperature of the DPF temperature is calculated by using the temperature increase rate of the temperature increase rate setting portion.
摘要翻译： DPF目标温度设定单元具有升温速度设定部，其设定升温变化率，使得在后期喷射开始后到达PM被燃烧的目标设定温度之前，升温变化率降低 根据从后期喷射开始起经过的温度或经过的时间段，温度上升率设定部分的逐步升温变化率包括第一阶段变化率A和第二阶段变化率A， 阶段变化率B低于第一阶段变化率，并且通过使用升温速率设定部的升温速度来计算DPF温度的目标温度。
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公开(公告)号：US20120174653A1
公开(公告)日：2012-07-12
申请号：US13386142
申请日：2010-06-11
IPC分类号： F01N11/00
CPC分类号： F01N9/002 , F01N3/021 , F01N2900/1606 , F02D41/1456 , F02D41/1467 , F02D2200/0812 , Y02T10/20 , Y02T10/47
摘要： Providing a PM emission amount estimation device for the diesel engine wherein the accuracy of the correction in correcting the basic level of the PM emission amount by use of the PM emission amount estimation map can be enhanced; and, the PM emission amount particularly during the transient state of the engine operation condition can be accurately computed so as to estimate, with high precision, the PM emission amount and the PM emission accumulated-amount (integrated amount) during the whole engine operation conditions including the transient state as well as the steady state. A PM emission amount estimation device for estimating the amount of the PM for estimating the amount of the PM that is emitted from a diesel engine and collected by a DPF provided in the exhaust gas passage of the engine, the device including, but not limited to: a PM emission amount estimation base-map 3 with which the base PM emission amount is computed in response to the operation condition of the engine; a PM emission amount estimation correction-map 5 that determines a correction factor for correcting the base PM emission amount computed by the PM emission amount estimation base-map 3, the correction factor being determined in response to the transient engine operation condition; a transient state judgment device 7 that judges that the engine is operated in a transient operation condition based on the change of the air excess ratio regarding the engine; a PM emission amount computation device 9 that corrects the computed base PM emission amount by multiplying the computed base PM emission amount by the correction factor computed with the PM emission amount estimation correction-map 5 only in a case where it is judged, by the transient state judgment device 7, that the engine is in a transient operation condition whereas the base PM emission amount is directly outputted in a case where it is judged that the engine is in a steady operation condition.
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