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    Deteriorated state evaluation device of exhaust emission control equipment
    1.
    发明授权
    Deteriorated state evaluation device of exhaust emission control equipment 失效
    废气排放控制设备劣化状态评估装置

    公开(公告)号：US06935099B2

    公开(公告)日：2005-08-30

    申请号：US10484817

    申请日：2002-08-23

    申请人： Yasuyuki Miyahara ,  Masahiro Sato ,  Masaki Ueno ,  Kenichi Ohmori

    发明人： Yasuyuki Miyahara ,  Masahiro Sato ,  Masaki Ueno ,  Kenichi Ohmori

    IPC分类号： F01N3/08 ,  F01N11/00 ,  F01N3/00

    CPC分类号： F01N3/0835 ,  F01N3/0807 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2570/12 ,  Y02T10/20 ,  Y02T10/47

    摘要： After an engine 1 has started to operate, a state in which a humidity represented by an output of a humidity sensor 19 downstream of a hydrocarbon adsorbent 7 takes a minimum value is sequentially searched for, and a timing at which the humidity changes from the minimum value to a monotonously increasing state is grasped as a timing at which the adsorption of moisture and hydrocarbons by the hydrocarbon adsorbent 7 is saturated. After the engine has started to operate, a parameter representing an integrated amount of moisture given to the hydrocarbon adsorbent 7 by the exhaust gas is sequentially generated, and a deteriorated state of the hydrocarbon adsorbent 7 is evaluated based on the value of the parameter at the timing at which the adsorption is saturated. The deteriorated state of the hydrocarbon absorbent can thus accurately be evaluated by an inexpensive arrangement which employs the humidity sensor 19 disposed downstream of the hydrocarbon adsorbent 7.

    摘要翻译： 在发动机1开始运行之后，依次搜索由碳氢化合物吸附剂7下游的湿度传感器19的输出表示的湿度为最小值的状态，以及湿度从最小值变化的时刻 将作为单一增加状态的值作为将烃类吸附剂7吸收水分和烃类饱和的时刻进行掌握。 在发动机开始运转之后，依次产生表示通过废气赋予烃类吸附剂7的一体化的水分量的参数，根据该吸附剂7的参数值，评价烃吸附剂7的劣化状态 吸附饱和的时间。 因此，可以通过使用设置在烃吸附剂7的下游的湿度传感器19的廉价的装置来精确地评价烃类吸收剂的劣化状态。

    Adsorbent state determining apparatus
    4.
    发明授权
    Adsorbent state determining apparatus 失效

    公开(公告)号：US06640540B2

    公开(公告)日：2003-11-04

    申请号：US09978020

    申请日：2001-10-17

    申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/30 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/12 ,  Y02T10/47

    摘要： An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.

    Combustion state control system of internal combustion engine
    5.
    发明授权
    Combustion state control system of internal combustion engine 失效
    内燃机燃烧状态控制系统

    公开(公告)号：US06516772B2

    公开(公告)日：2003-02-11

    申请号：US09904851

    申请日：2001-07-16

    申请人： Masaki Ueno ,  Yasunori Ehara ,  Masahiro Sato ,  Ken Ogawa ,  Isao Komoriya

    发明人： Masaki Ueno ,  Yasunori Ehara ,  Masahiro Sato ,  Ken Ogawa ,  Isao Komoriya

    IPC分类号： F02B7508

    CPC分类号： F02D41/005 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D37/02 ,  F02D41/0032 ,  F02D41/1497 ,  F02D41/3029 ,  F02D2041/1416 ,  F02M25/08 ,  F02M26/53 ,  F02M2026/009 ,  Y02T10/123 ,  Y02T10/47

    摘要： In a direct injection spark ignition engine which is operable in lean-burn operation modes including a pre-mixture combustion mode and a stratified combustion operation mode and a stoichiometric air/fuel ratio operation mode, which are different in the desired air/fuel ratio. The degradation of combustion state is detected through misfire detection and if it is determined to be degraded, the desired air/fuel ratio, the EGR flow rate and the ignition timing are changed when the engine is operated in the stratified combustion operation mode, while the desired air/fuel ratio, the EGR flow rate and the purge flow rate are changed when the engine is operated in the pre-mixture combustion operation mode, thereby ensuring to suppress the combustion state degradation effectively.

    摘要翻译： 在直喷式火花点火式发动机中，其可在包括预混合燃烧模式和分层燃烧运行模式以及理想空燃比操作模式的稀薄燃烧运行模式中操作，所述预混合燃烧模式和所需空气/燃料比不同。 通过失火检测来检测燃烧状态的劣化，如果判定为劣化，则在发动机以分层燃烧运转模式运转时改变所需的空燃比，EGR流量和点火正时， 期望的空燃比，EGR流量和排气流量在发动机在预混合燃烧运转模式下运转时发生变化，从而有效地抑制了燃烧状态的劣化。

    Fault determining apparatus for exhaust passage switching valve
    6.
    发明授权
    Fault determining apparatus for exhaust passage switching valve 失效
    排气通道切换阀故障判定装置

    公开(公告)号：US06477830B2

    公开(公告)日：2002-11-12

    申请号：US09833615

    申请日：2001-04-13

    申请人： Shiro Takakura ,  Masaki Ueno ,  Masahiro Sato ,  Tetsuo Endo

    发明人： Shiro Takakura ,  Masaki Ueno ,  Masahiro Sato ,  Tetsuo Endo

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  F01N3/101 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N2250/12 ,  F01N2410/12 ,  F01N2550/03 ,  F01N2550/06 ,  F01N2560/028 ,  F01N2900/0422 ,  Y02T10/22 ,  Y02T10/47

    摘要： A fault determining apparatus for an exhaust passage switching valve which is capable of directly, rapidly and properly determining a fault in an exhaust passage switching valve, under conditions such as immediately after the start of an internal combustion engine, in which the switching valve should be essentially operated, without the need for setting a special fault determining mode. The fault determining apparatus determines a fault in the exhaust passage switching valve for switching an exhaust passage of exhaust gases discharged from an internal combustion engine between a main exhaust passage having a three-way catalyst and a bypass exhaust passage having filled in an intermediate portion thereof an adsorbent capable of adsorbing hydrocarbons and moisture in the exhaust gases in accordance with an activated state of the three-way catalyst. The fault determining apparatus comprises a humidity sensor for detecting a humidity of the exhaust gases introduced into the bypass exhaust passage, and an ECU for determining a fault in the exhaust passage switching valve based on the result of detection performed by the humidity sensor when the exhaust passage should have been switched to the bypass exhaust passage by the exhaust passage switching valve.

    摘要翻译： 一种用于排气通道切换阀的故障确定装置，其能够在内燃机启动之后的状态下直接，快速和适当地确定排气通道切换阀中的故障，其中切换阀应当 基本上操作，而不需要设置专门的故障确定模式。 故障确定装置确定排气通道切换阀中的故障，用于切换在具有三通催化剂的主排气通道和填充在其中间部分中的旁通排气通道之间从内燃机排出的废气的排气通道 能够根据三元催化剂的活化状态吸附废气中的碳氢化合物和水分的吸附剂。 故障判定装置包括：湿度传感器，用于检测引入旁通排气通道的废气的湿度;以及ECU，其用于根据由排气通道切换阀中的排气通道进行的检测结果来确定排气通道切换阀的故障 通道应该被排气通道切换阀切换到旁通排气通道。

    Exhaust gas purification system of internal combustion engine
    7.
    发明授权
    Exhaust gas purification system of internal combustion engine 失效
    内燃机废气净化系统

    公开(公告)号：US06286306B1

    公开(公告)日：2001-09-11

    申请号：US09498653

    申请日：2000-02-07

    申请人： Shiro Takakura ,  Yuji Yasui ,  Tadashi Satoh ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Masahiro Sato

    发明人： Shiro Takakura ,  Yuji Yasui ,  Tadashi Satoh ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Masahiro Sato

    IPC分类号： F01N300

    CPC分类号： B01D53/9495 ,  B01D53/9454 ,  F01N3/0835 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F02M26/15 ,  F02M26/48 ,  Y02T10/22

    摘要： A system for purifying exhaust gas generated by an internal combustion engine having a bypass exhaust gas passage branching from an exhaust pipe which is opened or closed by a switch-over valve, and an adsorbent which adsorbs unburneds component in the exhaust gas installed at the bypass exhaust passage. In the system, when the engine operation is within a high engine speed and high load region, the switch-over valve is operated to open the bypass exhaust gas passage to reduce noise due to switch-over valve chattering, etc. Similarly, the bypass exhaust gas passage is opened at that range, when the exhaust gas temperature is greater or equal to a predetermined value, to introduce high temperature exhaust gas to burn away cloggy material adhered to the adsorbent which would otherwise deteriorate or degrade the adsorbent.

    摘要翻译： 一种用于净化由内燃机产生的废气的系统，该内燃机具有从由切换阀打开或关闭的排气管分支的旁通废气通道，以及吸附在旁路旁的排气中的未燃烧成分 排气通道。 在该系统中，当发动机运转在高发动机转速和高负载区域内时，切换阀被操作以打开旁路废气通道，以减少切换阀颤动等引起的噪音。类似地，旁路 废气通道在该范围内打开，当废气温度大于或等于预定值时，引入高温废气以消除附着在吸附剂上的阻塞材料，否则会使吸附剂劣化或降解。

    Hydrocarbon adsorbent state monitoring device
    10.
    发明授权
    Hydrocarbon adsorbent state monitoring device 失效
    烃类吸附剂状态监测装置

    公开(公告)号：US06928805B2

    公开(公告)日：2005-08-16

    申请号：US10490392

    申请日：2002-10-21

    申请人： Hideharu Yamazaki ,  Masahiro Sato ,  Kei Machida ,  Tetsuo Endo ,  Masaki Ueno

    发明人： Hideharu Yamazaki ,  Masahiro Sato ,  Kei Machida ,  Tetsuo Endo ,  Masaki Ueno

    IPC分类号： F01N3/08 ,  F01N11/00 ,  F02M25/07 ,  F01N3/00

    CPC分类号： F01N11/00 ,  F01N3/0835 ,  F01N3/0878 ,  F01N2550/03 ,  F01N2560/028 ,  F02D2200/0418 ,  F02M26/15 ,  Y02T10/20 ,  Y02T10/47

    摘要： A characteristic change of a humidity sensor 19 is detected based on the transitional characteristics of output data of the humidity sensor 19 with respect to integrated moisture quantity data representative of an integrated amount of moisture that is supplied to an HG adsorbent 7 by an exhaust gas after an engine 1 has started to operate. A parameter for grasping a state of the HC adsorbent 7 is corrected. The state, such as a deteriorated state or the like, of a hydrocarbon adsorbent (HC adsorbent) is properly monitored while compensating for the effect of the characteristic change of the humidity sensor and the effect of variations of the characteristics of individual units of the humidity sensor.

    摘要翻译： 湿度传感器19的特征变化基于湿度传感器19的输出数据的过渡特性，相对于表示通过废气在HG吸附剂7供给的HG吸附剂7的积分的湿度的积分量的综合水分量数据 发动机1已开始运转。 用于获取HC吸附剂7的状态的参数被校正。 适当地监测烃类吸附剂（HC吸附剂）的劣化状态等的状态，同时补偿湿度传感器的特性变化的影响以及湿度的各个单位特性的变化的影响 传感器。