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    Method and apparatus for controlling an engine
    23.
    发明授权
    Method and apparatus for controlling an engine 失效
    用于控制发动机的方法和装置

    公开(公告)号：US06782694B2

    公开(公告)日：2004-08-31

    申请号：US10084666

    申请日：2002-02-28

    申请人： Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

    发明人： Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0878 ,  F01N9/005 ,  F01N13/009 ,  F02D41/024 ,  F02D41/0275 ,  F02D41/0295 ,  F02D41/1441 ,  F02D2200/0802 ,  F02M26/15 ,  Y02T10/26 ,  Y02T10/47

    摘要： A control method of an engine including at least an HC adsorbing catalyst for adsorbing HC at a low temperature, and emitting adsorbed HC at a high temperature, and a three-way purifying function on the same carrier, and an NOx adsorbing catalyst having an NOx adsorbing function for adsorbing or occluding NOx in oxidizing atmosphere, and emitting NOx in reducing atmosphere, and a three-way purifying function. The engine operated with stoichiometric value or a rich air-fuel when a temperature of the HC adsorbing catalyst and/or a temperature of the NOx adsorbing catalyst is equal to/lower than a predetermined value. The engine is operated with a lean air-fuel ratio when a temperature of the HC adsorbing catalyst and/or a temperature of the NOx adsorbing catalyst is equal to/higher than the predetermined value.

    摘要翻译： 一种发动机的控制方法，其至少包括用于在低温下吸附HC的HC吸附催化剂和在同一载体上排出高温下的HC和三元醇净化功能，以及具有NOx的NOx吸附催化剂 在氧化气氛中吸附或吸留NOx的吸附功能，还原气氛中排出NOx，以及三元净化功能。 当HC吸附催化剂的温度和/或NOx吸附催化剂的温度等于或低于预定值时，发动机以化学计量值运行或富空燃比。 当HC吸附催化剂的温度和/或NOx吸附催化剂的温度等于或高于预定值时，发动机以贫空燃比操作。

    Control device for engine
    25.
    发明授权
    Control device for engine 有权
    发动机控制装置

    公开(公告)号：US08463532B2

    公开(公告)日：2013-06-11

    申请号：US13202350

    申请日：2010-02-04

    申请人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzo Katougi ,  Takanobu Ichihara ,  Minoru Ohsuga ,  Hiroyuki Takamura

    发明人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzo Katougi ,  Takanobu Ichihara ,  Minoru Ohsuga ,  Hiroyuki Takamura

    IPC分类号： F02D41/00

    CPC分类号： F02D41/065 ,  F02D41/0295 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0814 ,  F02D2200/0816

    摘要： Provided is a control device for an engine which is capable of purifying NOx with high efficiency at a restart after an idle stop without deteriorating purification efficiency of HC and CO. At the restart after the idle stop, an air-fuel ratio is controlled to be rich, and an atmosphere inside of a catalyst is estimated on the basis of a required time ΔT from a time point at which an output value (VO2—2) of first oxygen concentration detection means upstream of the catalyst exceeds a predetermined value A1 to a time point at which an output value (VO2—2) of second oxygen concentration detection means downstream of the catalyst exceeds a predetermined value A2, whereby an air-fuel ratio at next and subsequent restarts is corrected so that the atmosphere inside of the catalyst is optimized at the next and subsequent restarts.

    摘要翻译： 提供一种用于发动机的控制装置，其能够在怠速停止之后重新启动时能够高效地净化NOx，而不会降低HC和CO的净化效率。在怠速停止后的重启时，将空燃比控制为 基于从催化剂上游的第一氧浓度检测装置的输出值（VO2-2）（VO2-2）超过规定值A1到a的时间点的所需时间DeltaT来估计催化剂内部的气氛 在催化剂下游的第二氧浓度检测装置的输出值（VO2-2）超过预定值A2的时间点，由此校正下一次和随后的重新启动时的空燃比，使得催化剂内部的气氛为 在下次重新启动和后续重新启动时优化。

    Engine control apparatus
    26.
    发明授权
    Engine control apparatus 有权
    发动机控制装置

    公开(公告)号：US08267076B2

    公开(公告)日：2012-09-18

    申请号：US12826367

    申请日：2010-06-29

    申请人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzou Katogi ,  Takanobu Ichihara ,  Minoru Ohsuga

    发明人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzou Katogi ,  Takanobu Ichihara ,  Minoru Ohsuga

    IPC分类号： F02D41/10

    CPC分类号： F02D41/0085 ,  F02D37/02 ,  F02D41/1454 ,  F02D41/1497 ,  F02D2200/1012

    摘要： The present invention performs correction appropriately according to errors in the fuel system and air system respectively and corrects both variations in the air-fuel ratio and torque. When the difference between a target air-fuel ratio and a real air-fuel ratio is equal to or below a predetermined value when feedback control based on the air-fuel ratio of an exhaust manifold 10A is in progress, the air-fuel ratio of a cylinder cyl—1 having the largest variation of angular acceleration is corrected to the rich side, for example, by increasing the amount of fuel. Angular acceleration per cylinder is then detected again and when the variation in angular acceleration among cylinders is not eliminated, it is judged that there is an error in the amount of air control of the cylinder having the largest variation and the amount of air, amount of fuel, ignition timing or the like are corrected.

    摘要翻译： 本发明分别根据燃料系统和空气系统中的误差适当地进行校正，并且校正空燃比和扭矩的变化。 当在进行基于排气歧管10A的空燃比的反馈控制的情况下，当目标空燃比与实际空燃比之间的差等于或低于预定值时，空燃比 具有最大的角加速度变化的气缸cyl-1例如通过增加燃料量被校正到浓侧。 再次检测每缸的角加速度，当不消除气缸之间角加速度的变化时，判断为具有最大变化量和空气量的气缸的空气控制量存在误差， 燃料，点火正时等。

    Control Device for Engine
    27.
    发明申请
    Control Device for Engine 有权
    发动机控制装置

    公开(公告)号：US20110315108A1

    公开(公告)日：2011-12-29

    申请号：US13202350

    申请日：2010-02-04

    申请人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzo Katougi ,  Takanobu Ichihara ,  Minoru Ohsuga ,  Hiroyuki Takamura

    发明人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzo Katougi ,  Takanobu Ichihara ,  Minoru Ohsuga ,  Hiroyuki Takamura

    IPC分类号： F02N11/08

    CPC分类号： F02D41/065 ,  F02D41/0295 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0814 ,  F02D2200/0816

    摘要： Provided is a control device for an engine which is capable of purifying NOx with high efficiency at a restart after an idle stop without deteriorating purification efficiency of HC and CO. At the restart after the idle stop, an air-fuel ratio is controlled to be rich, and an atmosphere inside of a catalyst is estimated on the basis of a required time ΔT from a time point at which an output value (VO2—2) of first oxygen concentration detection means upstream of the catalyst exceeds a predetermined value A1 to a time point at which an output value (VO2—2) of second oxygen concentration detection means downstream of the catalyst exceeds a predetermined value A2, whereby an air-fuel ratio at next and subsequent restarts is corrected so that the atmosphere inside of the catalyst is optimized at the next and subsequent restarts.

    摘要翻译： 提供一种用于发动机的控制装置，其能够在怠速停止之后重新启动时能够高效地净化NOx，而不会降低HC和CO的净化效率。在怠速停止后的重启时，将空燃比控制为 在催化剂上游的第一氧浓度检测装置的输出值（VO2-2）超过规定值A1的时刻，基于所需时间＆Dgr; T，估计催化剂内部的气氛， 到催化剂下游的第二氧浓度检测装置的输出值（VO2-2）超过预定值A2的时间点，由此校正下次再次启动时的空燃比，使得在 催化剂在下一次和随后的重新启动时被优化。

    Engine Control Apparatus
    28.
    发明申请
    Engine Control Apparatus 有权
    发动机控制装置

    公开(公告)号：US20110029218A1

    公开(公告)日：2011-02-03

    申请号：US12826367

    申请日：2010-06-29

    申请人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzou Katogi ,  Takanobu Ichihara ,  Minoru Ohsuga

    发明人： Shinji Nakagawa ,  Kazuhiko Kanetoshi ,  Kouzou Katogi ,  Takanobu Ichihara ,  Minoru Ohsuga

    IPC分类号： F02D41/00

    CPC分类号： F02D41/0085 ,  F02D37/02 ,  F02D41/1454 ,  F02D41/1497 ,  F02D2200/1012

    摘要： The present invention performs correction appropriately according to errors in the fuel system and air system respectively and corrects both variations in the air-fuel ratio and torque. When the difference between a target air-fuel ratio and a real air-fuel ratio is equal to or below a predetermined value when feedback control based on the air-fuel ratio of an exhaust manifold 10A is in progress, the air-fuel ratio of a cylinder cyl_1 having the largest variation of angular acceleration is corrected to the rich side, for example, by increasing the amount of fuel. Angular acceleration per cylinder is then detected again and when the variation in angular acceleration among cylinders is not eliminated, it is judged that there is an error in the amount of air control of the cylinder having the largest variation and the amount of air, amount of fuel, ignition timing or the like are corrected.

    摘要翻译： 本发明分别根据燃料系统和空气系统中的误差适当地进行校正，并且校正空燃比和扭矩的变化。 当在进行基于排气歧管10A的空燃比的反馈控制的情况下，当目标空燃比与实际空燃比之间的差等于或低于预定值时，空燃比 具有最大的角加速度变化的气缸cyl_1例如通过增加燃料量被校正到浓侧。 再次检测每缸的角加速度，当不消除气缸之间角加速度的变化时，判断为具有最大变化量和空气量的气缸的空气控制量存在误差， 燃料，点火正时等。

    Control unit for internal combustion engine
    29.
    发明授权
    Control unit for internal combustion engine 失效
    内燃机控制单元

    公开(公告)号：US06675574B2

    公开(公告)日：2004-01-13

    申请号：US10193207

    申请日：2002-07-12

    申请人： Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

    发明人： Shinji Nakagawa ,  Minoru Ohsuga ,  Masami Nagano

    IPC分类号： F01N300

    CPC分类号： F02D37/02 ,  F02D41/008 ,  F02D41/024 ,  F02D41/1408 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0418 ,  F02D2200/0802 ,  Y02T10/22 ,  Y02T10/26

    摘要： A control unit for an internal combustion engine can activate a three-way catalyst at the early stage and can lessen the deterioration of the exhaust in an internal combustion engine such as HC, CO, and NOx, etc. from the exhaust gas when starting. The control unit for an internal combustion engine is provided with the three-way catalyst and HC adsorbent on an exhaust side. The control unit alternately controls the A/F between a rich state and a lean state in order to quicken the activation of the three-way catalyst when the internal combustion engine starts.

    摘要翻译： 用于内燃机的控制单元可以在早期激活三元催化剂，并且可以在启动时从废气中减轻诸如HC，CO和NOx等的内燃机中的排气的劣化。 用于内燃机的控制单元在排气侧设置有三元催化剂和HC吸附剂。 控制单元交替地控制富状态和稀态之间的A / F，以便在内燃机起动时加快三元催化剂的活化。