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    Engine control device
    2.
    发明授权
    Engine control device 失效
    发动机控制装置

    公开(公告)号：US06269634B1

    公开(公告)日：2001-08-07

    申请号：US09497431

    申请日：2000-02-03

    申请人： Kazuya Yokota ,  Junichi Taga ,  Youichi Kuji ,  Masayuki Kuroki ,  Akihide Takami ,  Kenji Okamoto ,  Hiroshi Yamada ,  Makoto Kyougoku ,  Seiji Miyoshi

    发明人： Kazuya Yokota ,  Junichi Taga ,  Youichi Kuji ,  Masayuki Kuroki ,  Akihide Takami ,  Kenji Okamoto ,  Hiroshi Yamada ,  Makoto Kyougoku ,  Seiji Miyoshi

    IPC分类号： F01N300

    CPC分类号： F02D41/005 ,  F01N3/0842 ,  F01N13/009 ,  F01N2570/04 ,  F02D37/02 ,  F02D41/028 ,  F02D41/402 ,  F02D2200/0818 ,  F02M26/15 ,  Y02T10/47

    摘要： An engine control device, which is adapted for an engine provided with an NOx-absorbing material arranged in an exhaust passage for absorbing NOx in an oxygen-rich atmosphere, and releasing NOx and absorbing sulfur content when the oxygen concentration drops, includes a discriminator for judging whether the amount of sulfur absorbed by the NOx-absorbing material has reached a prescribed quantity, and a reductant concentration controller which increases the temperature of the NOx-absorbing material by decreasing a quantity related to EGR ratio for desulfurizing the NOx-absorbing material based on the result of judgment made by the discriminator. When the quantity related to the EGR ratio is decreased, the temperature of exhaust gas increases. Consequently, the temperature of the NOx-absorbing material increases and the sulfur in the NOx-absorbing material is freed and released.

    摘要翻译： 一种发动机控制装置，其适用于设置有排气通道中的NOx吸收材料的发动机控制装置，用于吸收富氧气氛中的NOx，并且当氧浓度下降时释放NOx并吸收硫含量，包括用于 判断由吸收NOx的吸收材料吸收的硫的量是否达到规定量;还原剂浓度控制器，其通过减少与NOx吸收材料脱硫相关的EGR率来增加NOx吸收材料的温度， 根据鉴别人的判断结果。 当与EGR率相关的量减少时，废气的温度升高。 因此，吸收NO x的材料的温度升高，NOx吸收材料中的硫释放释放。

    Control apparatus for direct-injection engine
    3.
    发明授权
    Control apparatus for direct-injection engine 有权
    直喷发动机控制装置

    公开(公告)号：US06449946B2

    公开(公告)日：2002-09-17

    申请号：US09779631

    申请日：2001-02-09

    申请人： Youichi Kuji ,  Masayuki Kuroki ,  Junichi Taga ,  Kazuya Yokota ,  Keiji Araki

    发明人： Youichi Kuji ,  Masayuki Kuroki ,  Junichi Taga ,  Kazuya Yokota ,  Keiji Araki

    IPC分类号： F01N300

    CPC分类号： F02D41/0255 ,  F02B2075/125 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/26 ,  Y02T10/44

    摘要： In steps S25 to S42, in order to activate an inactive catalyst earlier, the air-fuel ratio in a combustion chamber is set to be &lgr;≈1 during a period T1 after engine start until catalyst light-off at around 50% HC purifying ratio immediately after the HC purifying ratio begins to rapidly rise, before the catalyst warms up, divisional injection is made at least during the period T1 required until light-off is reached, and a swirl is weakened during the period T1 compared to a latter period which follows this period T1. The divisional injection is made and the swirl is strengthened even during the latter period.

    摘要翻译： 在步骤S25〜S42中，为了较早地活化无活性催化剂，燃烧室中的空燃比在发动机起动后的期间T1内设定为d≈1，直到催化剂在约50％HC净化率下熄灭 在HC净化比率开始快速升高之后，在催化剂加热之前，至少在T1期间需要分开注入，直到达到点火，并且在T1期间与之后的时期相比，涡流减弱 遵循这个时期T1。 分区注入，即使在后期也会加强漩涡。

    Exhaust-gas cleaning devices for engine
    4.
    发明授权
    Exhaust-gas cleaning devices for engine 失效
    发动机废气净化装置

    公开(公告)号：US06374596B2

    公开(公告)日：2002-04-23

    申请号：US09761105

    申请日：2001-01-17

    申请人： Junichi Taga ,  Kazuya Yokota ,  Youichi Kuji ,  Masayuki Kuroki

    发明人： Junichi Taga ,  Kazuya Yokota ,  Youichi Kuji ,  Masayuki Kuroki

    IPC分类号： F01N300

    CPC分类号： F01N9/005 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N11/007 ,  F01N13/009 ,  F01N2550/03 ,  F01N2570/14 ,  F01N2570/16 ,  F02B2075/125 ,  Y02A50/2344 ,  Y02T10/47

    摘要： An exhaust-gas cleaning device comprises an absorption quantity detector (22) for determining the first and second amounts of NOx and oxygen absorbed by a NOx-absorbing material and an oxygen-absorbing material during first and second reference times based on sensing signals fed from an oxygen concentration detector (11), a NOx quantity estimator (23) for obtaining first and second estimated values of the amount of NOx absorbed by the NOx-absorbing material during the first and second reference times in accordance with engine operating condition, and a deterioration detector (24) for making a judgment on deterioration of the NOx-absorbing material based on the first and second amounts of absorption of NOx and oxygen determined by the absorption quantity detector (22) and the first and second estimated values of the amount of NOx obtained by the NOx quantity estimator (23).

    摘要翻译： 排气净化装置包括：吸收量检测器（22），用于基于从第一和第二参考时间期间馈送的感测信号，确定在第一和第二参考时间期间由吸收NO x的材料和氧吸收材料吸收的NO x和氧的量的第一和第二量 氧浓度检测器（11），用于根据发动机工作条件获得在第一和第二参考时间期间由吸收NOx的吸收材料吸收的NOx的第一和第二估计值的NOx量估计器（23），以及 劣化检测器（24），用于基于由吸收量检测器（22）确定的NOx和氧的吸收的第一和第二吸收量以及第一和第二估计值，判断吸收NOx的材料的劣化 由NOx量估计器（23）获得的NOx。

    Control system for an engine
    5.
    发明授权
    Control system for an engine 失效
    发动机控制系统

    公开(公告)号：US06234139B1

    公开(公告)日：2001-05-22

    申请号：US09252788

    申请日：1999-02-19

    申请人： Junichi Taga ,  Michihiro Imada ,  Masayuki Kuroki ,  Masayuki Tetsuno ,  Kiyotaka Mamiya ,  Hirofumi Nishimura

    发明人： Junichi Taga ,  Michihiro Imada ,  Masayuki Kuroki ,  Masayuki Tetsuno ,  Kiyotaka Mamiya ,  Hirofumi Nishimura

    IPC分类号： F02B1700

    CPC分类号： F02D41/3064 ,  F02D41/0002 ,  F02D41/3029 ,  F02D2041/0015 ,  Y02T10/42

    摘要： An engine control system for an engine equipped with a swirl control valve which is operative in operation modes different in fuel injection form according to engine operating conditions judges based on a change in an engine operating condition whether a mode shift to one operation mode to another is demanded and controls the swirl control valve so as to attain a target opening for the one engine operation mode while keeping a specific mode shift waiting until the swirl valve opening reaches a limit value permissible in one engine operation mode into which the specific mode shift is made when the swirl control valve is judged to be out of the limit value.

    摘要翻译： 一种具有涡轮控制阀的发动机控制系统，该发动机控制系统根据发动机工作条件在燃料喷射形式不同的操作模式下工作，基于发动机运行状态的变化来判断模式向一个操作模式的转换是否为 要求并控制旋流控制阀，以便在保持特定模式换档的同时等待直到涡旋阀开度达到一个发动机运转模式允许的限制值为止，达到一个发动机运转模式的目标开度 当涡流控制阀被判定为超出极限值时。

    Exhaust gas purifying device for engine
    7.
    发明授权
    Exhaust gas purifying device for engine 失效
    发动机废气净化装置

    公开(公告)号：US06834497B2

    公开(公告)日：2004-12-28

    申请号：US10663802

    申请日：2003-09-17

    申请人： Seiji Miyoshi ,  Akihide Takami ,  Hiroshi Yamada ,  Masayuki Kuroki

    发明人： Seiji Miyoshi ,  Akihide Takami ,  Hiroshi Yamada ,  Masayuki Kuroki

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N11/007 ,  F01N2430/08 ,  F01N2550/03 ,  F01N2900/0422 ,  F02B31/06 ,  F02D41/0047 ,  F02D41/0275 ,  F02D41/0295 ,  F02D41/146 ,  F02D41/22 ,  F02D2200/0806 ,  F02D2200/0816 ,  Y02T10/24 ,  Y02T10/47

    摘要： An exhaust gas purifying device of the present invention comprises NOx trap catalyst including NOx trap material, catalytic metal and O2 storage material, NOx sensor, section for releasing NOx when NOx absorbed amount of the NOx trap catalyst reaches a specified amount, section for determining diagnosis conditions of the NOx trap catalyst, section for detecting termination of O2 release from the O2 storage material, and section for diagnosing O2 storage capacity according to output value (NO1) of the NOx sensor during a term from beginning of the oxygen concentration lowering by the NOx release section until termination of the O2 release and for diagnosing NOx reduction capacity of the catalytic metal according to output value (NO2) of the NOx sensor after termination of O2 release, wherein a speed of lowering oxygen concentration during the diagnosis is set so as to be slower than that during non-diagnosis.

    摘要翻译： 本发明的排气净化装置包括NOx捕集催化剂，其包括NOx捕集材料，催化金属和O 2储存材料，NOx传感器，当NOx捕集催化剂的NOx吸收量达到规定量时释放NOx的部分，用于确定诊断的部分 NO x捕集催化剂的条件，用于检测从O 2储存材料中释放的O2的终止的部分，以及根据由氧浓度降低开始的期间的NOx传感器的输出值（NO1）来诊断O 2存储容量的部分 NOx释放部分，直到O2释放结束，并且根据在O 2释放结束之后的NOx传感器的输出值（NO2）来诊断催化金属的NOx还原能力，其中将诊断期间将氧浓度降低的速度设定为 比非诊断时要慢。