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    Engine exhaust gas purifying apparatus
    1.
    发明授权
    Engine exhaust gas purifying apparatus 失效
    发动机废气净化装置

    公开(公告)号：US06357224B1

    公开(公告)日：2002-03-19

    申请号：US09592677

    申请日：2000-06-12

    申请人： Shigeru Kawamoto ,  Yutaka Takaku ,  Toshio Ishii ,  Yoshihisa Fujii ,  Shinji Nakagawa ,  Minoru Oosuga

    发明人： Shigeru Kawamoto ,  Yutaka Takaku ,  Toshio Ishii ,  Yoshihisa Fujii ,  Shinji Nakagawa ,  Minoru Oosuga

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N11/007 ,  F01N2550/03 ,  F02B23/101 ,  F02B2075/125 ,  F02D41/0275 ,  F02D41/1441 ,  Y02T10/24 ,  Y02T10/47

    摘要： The invention provides a method of controlling an air-fuel ratio and for diagnosing a deterioration of a catalyst having an NOx trapping agent in an internal combustion engine. An exhaust gas purifying apparatus having an NOx trapping agent arranged within an exhaust gas passage, an air-fuel ratio changing means temporarily changing the air-fuel ratio of the exhaust gas from the lean to the stoichiometric or rich air-fuel ratio at a predetermined cycle, a particular component detecting means detecting a particular component in the exhaust gas downstream the NOx trapping agent, a NOx discharge or reduction completion judging means, and NOx discharge or reduction completion time detecting means detecting a time required for purifying the NOx.

    摘要翻译： 本发明提供一种控制空燃比并且用于诊断在内燃机中具有NOx捕集剂的催化剂的劣化的方法。 一种排气净化装置，其具有配置在排气通路内的NOx捕集剂，空燃比变更单元将预定的排气的空燃比暂时地从所述稀薄变化为理论空燃比， 循环，检测NOx捕集剂下游的废气中的特定成分的特​​定成分检测装置，NOx排放或还原完成判定装置，以及NOx排放或还原完成时间检测装置，其检测净化NOx所需的时间。

    Engine exhaust gas cleaning system
    2.
    发明授权
    Engine exhaust gas cleaning system 有权
    发动机废气净化系统

    公开(公告)号：US06502388B2

    公开(公告)日：2003-01-07

    申请号：US09790688

    申请日：2001-02-23

    申请人： Yutaka Takaku ,  Toshio Ishii ,  Shigeru Kawamoto ,  Shinji Nakagawa ,  Minoru Oosuga ,  Yoshihisa Fujii

    发明人： Yutaka Takaku ,  Toshio Ishii ,  Shigeru Kawamoto ,  Shinji Nakagawa ,  Minoru Oosuga ,  Yoshihisa Fujii

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/03 ,  F01N2900/0422 ,  F02D41/0057 ,  F02D41/0275 ,  F02D41/1441 ,  F02D2200/0806 ,  F02D2200/0816 ,  Y02T10/24 ,  Y02T10/47

    摘要： An object of the present invention is to provide an engine exhaust gas cleaning system which can accurately judge whether or not there is the remaining capacity in an NOx trapping amount of an NOx trapping agent, can optimize the timing of NOx purge control, and can diagnose the deterioration of the NOx trapping agent. The present invention is characterized by an engine exhaust gas cleaning system comprising an operating control parameter changing means for changing operating control parameters of the engine in order to change an amount of NOx trapped to the NOx trapping agent; a concentration detecting means for detecting a concentration of a specified component in the exhaust gas at a position downstream of the NOx trapping agent; an air-fuel ratio changing means for temporarily changing the air-fuel ratio of the exhaust gas to a stoichiometric air-fuel ratio or a rich air-fuel ratio with a preset period; and an NOx trapping amount change detecting means for detecting change in the amount of NOx trapped to the NOx trapping agent based on change in a detected result of the concentration detecting means when the air-fuel ratio is changed after changing the operating control parameter.

    摘要翻译： 本发明的目的是提供一种能够精确地判断NOx捕集剂的NOx捕集量是否存在剩余容量的发动机废气净化系统，能够优化NOx净化控制的定时，并且能够诊断 本发明的特征在于一种发动机废气净化系统，其包括操作控制参数改变装置，用于改变发动机的操作控制参数，以便改变捕获到NOx捕集剂的NOx的量; 浓度检测装置，用于检测在所述NOx捕集剂的下游位置处的排气中的特定成分的浓度; 空燃比改变装置，用于将预定期间的废气的空燃比临时改变为理论空燃比或浓空燃比; 以及NOx捕集量变化检测装置，用于当改变所述操作控制参数之后，当所述空燃比改变时，基于所述浓度检测装置的检测结果的变化来检测捕获到所述NOx捕集剂的NOx的量的变化。

    Exhaust gas cleaning system for an engine
    3.
    发明授权
    Exhaust gas cleaning system for an engine 失效
    发动机废气净化系统

    公开(公告)号：US06383267B1

    公开(公告)日：2002-05-07

    申请号：US09592678

    申请日：2000-06-12

    申请人： Yutaka Takaku ,  Shigeru Kawamoto ,  Yoshihisa Fujii ,  Shinji Nakagawa ,  Toshio Ishii ,  Minoru Ohsuga

    发明人： Yutaka Takaku ,  Shigeru Kawamoto ,  Yoshihisa Fujii ,  Shinji Nakagawa ,  Toshio Ishii ,  Minoru Ohsuga

    IPC分类号： B01D5304

    CPC分类号： F01N3/0842 ,  F01N11/007 ,  F01N2550/03 ,  F01N2900/0422 ,  F02B23/101 ,  F02B2075/125 ,  F02D41/0275 ,  F02D41/1441 ,  F02D2200/0806 ,  F02D2200/0816 ,  Y02C20/10 ,  Y02T10/24 ,  Y02T10/47 ,  Y10S55/10 ,  Y10S55/30

    摘要： An exhaust gas cleaning system for an engine capable of judging the amount of trapped NOx and the oxygen storage capacity of an NOx trap agent and which can diagnose the deterioration of the NOx trap agent. The NOx trap is arranged in an exhaust gas passage and the air-fuel ratio of the exhaust gas is temporally changed from a lean air-fuel ratio to the stoichiometric air-fuel ratio or a rich air-fuel ratio with a predetermined cycle. The NOx trapping occurs by absorbing or adsorbing NOx in the exhaust gas when an air-fuel ratio of the exhaust gas is a lean air-fuel ratio and by releasing or reducing NOx when the air-fuel ratio is a rich air-fuel ratio. The amount of trapped NOx is judged from the oxygen concentration and the oxygen concentration in the exhaust gas is detected in the exhaust gas passage in the downstream side of the NOx trap and determined by taking the oxygen storage capacity when the air-fuel ratio of the exhaust gas changes to the stoichiometric air-fuel ratio or the rich air-fuel ratio.

    摘要翻译： 一种能够判断捕集NOx的量和NOx捕集剂的储氧能力并能够诊断NOx捕集剂的劣化的发动机的废气净化系统。 NOx捕集器设置在排气通路中，并且将废气的空燃比时间性地从稀空燃比变化到理论空燃比或浓空燃比，并具有规定的循环。 当排气的空燃比是稀空燃比时，通过吸收或吸附废气中的NOx，并且当空燃比浓空燃比时，通过释放或还原NOx，发生NOx捕集。 从氧浓度判定捕获的NOx的量，并且在NOx捕集器的下游侧的排气通路中检测废气中的氧浓度，并且通过在空气燃料比为 排气变为化学计量空燃比或浓空燃比。

    Apparatus and method for controlling air-to-fuel ratio in engine
    4.
    发明授权
    Apparatus and method for controlling air-to-fuel ratio in engine 有权
    用于控制发动机空燃比的装置和方法

    公开(公告)号：US06324836B1

    公开(公告)日：2001-12-04

    申请号：US09592852

    申请日：2000-06-12

    申请人： Shinji Nakagawa ,  Toshio Ishii ,  Yutaka Takaku ,  Minoru Ohsuga ,  Hiroyuki Takamura

    发明人： Shinji Nakagawa ,  Toshio Ishii ,  Yutaka Takaku ,  Minoru Ohsuga ,  Hiroyuki Takamura

    IPC分类号： F01N300

    CPC分类号： F02D41/1479 ,  F02D41/1441 ,  F02D41/1456

    摘要： If the output of an O2 sensor located downstream of a catalyst deviates from a predetermined range, the air-to-fuel ratio upstream of the catalyst is over-corrected to be a leaner value or a richer value beyond the predetermined purification-efficiency range when the output of the O2 sensor downstream of the catalyst indicates rich or lean, respectively, so that the output of the O sensor downstream of the catalyst returns within a predetermined range as soon as possible.

    摘要翻译： 如果位于催化剂下游的O2传感器的输出偏离预定范围，则催化剂上游的空燃比被过度校正为超过预定净化效率范围的更稀的值或更丰富的值， 催化剂下游的O 2传感器的输出分别表示浓或稀，使得催化剂下游的O传感器的输出尽可能快地返回到预定范围内。

    Controller of internal combustion engine
    5.
    发明授权
    Controller of internal combustion engine 有权
    内燃机控制器

    公开(公告)号：US07267100B2

    公开(公告)日：2007-09-11

    申请号：US10473772

    申请日：2001-04-03

    申请人： Shinji Nakagawa ,  Minoru Oosuga ,  Masami Nagano ,  Mamoru Nemoto ,  Toshio Hori

    发明人： Shinji Nakagawa ,  Minoru Oosuga ,  Masami Nagano ,  Mamoru Nemoto ,  Toshio Hori

    IPC分类号： F02D31/00 ,  F02D41/00

    CPC分类号： F02D41/18 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/1401 ,  F02D41/222 ,  F02D2011/102 ,  F02D2041/0017 ,  F02D2041/141 ,  F02D2041/1434 ,  F02D2250/18 ,  Y02T10/42

    摘要： An internal combustion engine controller, is used with a fuel-based torque-on-demand control type, multi-cylinder, direct-injection internal combustion engine, to provide an air flow rate control that excels in response and convergence. The internal combustion engine controller includes a section for computing a target throttle opening from operating conditions, which in turn includes a first computing section for determining a target throttle opening by feedback control in accordance with operating conditions including an intake air flow rate; a second computing section for determining a target throttle opening by feed-forward control in accordance with operating conditions; and a third computing means for determining a target throttle opening based on the target throttle opening value determined by the first computing means and the second computing means.

    摘要翻译： 内燃机控制器与基于燃料的转矩控制型多气缸直喷式内燃机一起使用，以提供响应和收敛性优异的空气流量控制。 内燃机控制器包括用于根据操作条件计算目标节气门开度的部分，该部分又包括用于根据包括进气流量的操作条件通过反馈控制确定目标节气门开度的第一计算部分; 第二计算部分，用于根据操作条件通过前馈控制确定目标节气门开度; 以及第三计算装置，用于基于由第一计算装置和第二计算装置确定的目标节气门开度值来确定目标节气门开度。

    Controller of internal combustion engine
    6.
    发明申请
    Controller of internal combustion engine 有权
    内燃机控制器

    公开(公告)号：US20050103309A1

    公开(公告)日：2005-05-19

    申请号：US10473772

    申请日：2001-04-03

    申请人： Shinji Nakagawa ,  Minoru Oosuga ,  Masami Nagano ,  Mamoru Nemoto ,  Toshio Hori

    发明人： Shinji Nakagawa ,  Minoru Oosuga ,  Masami Nagano ,  Mamoru Nemoto ,  Toshio Hori

    IPC分类号： F02D11/10 ,  F02D41/00 ,  F02D41/14

    CPC分类号： F02D41/18 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/1401 ,  F02D41/222 ,  F02D2011/102 ,  F02D2041/0017 ,  F02D2041/141 ,  F02D2041/1434 ,  F02D2250/18 ,  Y02T10/42

    摘要： Disclosed is an internal combustion engine controller, which is used with a fuel-based torque-on-demand control type, multi-cylinder, direct-injection internal combustion engine to provide an air flow rate control means that excels in response and convergence. This internal combustion engine controller comprises means for computing a target throttle opening from operating conditions. The means for computing a target throttle opening includes: a first computing means for determining a target throttle opening by exercising feedback control in accordance with operating conditions including an intake air flow rate; a second computing means for determining a target throttle opening by exercising feed-forward control in accordance with operating conditions; and a third computing means for determining a target throttle opening in accordance with a target throttle opening value determined by the first computing means and a target throttle opening value determined by the second computing means.

    摘要翻译： 公开了一种内燃机控制器，其与基于燃料的转矩按需控制型多缸直喷式内燃机一起使用，以提供响应和收敛性优异的空气流量控制装置。 该内燃机控制器包括用于从操作条件计算目标节气门开度的装置。 用于计算目标节气门开度的装置包括：第一计算装置，用于根据包括进气流量的操作条件通过执行反馈控制来确定目标节气门开度; 第二计算装置，用于根据操作条件通过执行前馈控制来确定目标节气门开度; 以及第三计算装置，用于根据由第一计算装置确定的目标节气门开度值和由第二计算装置确定的目标节气门开度值来确定目标节气门开度。

    Engine control apparatus
    7.
    发明授权
    Engine control apparatus 失效
    发动机控制装置

    公开(公告)号：US07664591B2

    公开(公告)日：2010-02-16

    申请号：US11476798

    申请日：2006-06-29

    申请人： Shinji Nakagawa ,  Kozo Katogi ,  Minoru Oosuga

    发明人： Shinji Nakagawa ,  Kozo Katogi ,  Minoru Oosuga

    IPC分类号： G06F19/00 ,  G06G7/70

    CPC分类号： F02D41/047 ,  F02D41/064 ,  F02D41/22 ,  F02D2041/288 ,  F02D2200/0414 ,  F02D2200/0612 ,  F02D2200/0614

    摘要： An apparatus and a method of control of the engine for separating and detecting the fuel remaining in the engine and in the intake passages before the start of the engine and also detecting the fuel property, and calculating a parameter such as an optimum fuel injection quantity when the engine is started, and thus enabling an efficient exhaust performance and a good running performance to be compatible at start-up. The engine control apparatus has a unit for detecting or estimating a burned fuel quantity of the engine, and a unit for separating and detecting a burned fuel quantity supplied from the fuel injection valve and a burned quantity of fuel other than the fuel supplied from the injection valve.

    摘要翻译： 一种发动机的控制装置和方法，用于分离和检测在发动机起动之前的发动机和进气通道中的燃料，并且还检测燃料特性，并且计算诸如最佳燃料喷射量之类的参数， 发动机起动，因此能够在启动时实现高效的排气性能和良好的运行性能。 发动机控制装置具有用于检测或估计发动机的燃烧燃料量的单元，以及用于分离和检测从燃料喷射阀供给的燃烧燃料量的单元和从喷射器供给的燃料的燃烧量 阀。

    Engine control apparatus
    8.
    发明申请
    Engine control apparatus 失效
    发动机控制装置

    公开(公告)号：US20070016357A1

    公开(公告)日：2007-01-18

    申请号：US11476798

    申请日：2006-06-29

    申请人： Shinji Nakagawa ,  Kozo Katogi ,  Minoru Oosuga

    发明人： Shinji Nakagawa ,  Kozo Katogi ,  Minoru Oosuga

    IPC分类号： G06F19/00 ,  G06G7/70

    CPC分类号： F02D41/047 ,  F02D41/064 ,  F02D41/22 ,  F02D2041/288 ,  F02D2200/0414 ,  F02D2200/0612 ,  F02D2200/0614

    摘要： An apparatus and a method of control of the engine for separating and detecting the fuel remaining in the engine and in the intake passages before the start of the engine and also detecting the fuel property, and calculating a parameter such as an optimum fuel injection quantity when the engine is started, and thus enabling an efficient exhaust performance and a good running performance to be compatible at start-up. The engine control apparatus has a unit for detecting or estimating a burned fuel quantity of the engine, and a unit for separating and detecting a burned fuel quantity supplied from the fuel injection valve and a burned quantity of fuel other than the fuel supplied from the injection valve.

    摘要翻译： 一种发动机的控制装置和方法，用于分离和检测在发动机起动之前的发动机和进气通道中的燃料，并且还检测燃料特性，并且计算诸如最佳燃料喷射量之类的参数， 发动机起动，因此能够在启动时实现高效的排气性能和良好的运行性能。 发动机控制装置具有用于检测或估计发动机的燃烧燃料量的单元，以及用于分离和检测从燃料喷射阀供给的燃烧燃料量的单元和从喷射器供给的燃料的燃烧量 阀。