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    Hydrocarbon adsorbent state determining apparatus
    2.
    发明授权
    Hydrocarbon adsorbent state determining apparatus 失效
    烃吸附剂状态测定装置

    公开(公告)号：US06923849B2

    公开(公告)日：2005-08-02

    申请号：US10608156

    申请日：2003-06-30

    申请人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

    发明人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

    IPC分类号： F02D45/00 ,  B01D53/04 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24

    CPC分类号： B01D53/0454 ,  Y10S55/30

    摘要： A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of exhaust gases to accurately determine the state of the hydrocarbon adsorbent, including a deterioration thereof, irrespective of the change in the flow rate of exhaust gases. The hydrocarbon adsorbent state determining apparatus determines the state of a hydrocarbon adsorbent disposed in an exhaust system of an internal combustion engine for adsorbing hydrocarbons and moisture within exhaust gases. The hydrocarbon adsorbent state determining apparatus comprises a downstream humidity sensor for detecting the humidity of exhaust gases which have passed through the hydrocarbon adsorbent, a flow velocity parameter detector for detecting a flow velocity parameter indicative of a flow velocity of the exhaust gases, and an ECU for determining the state of the hydrocarbon adsorbent in accordance with the detected humidity of the exhaust gases and the flow velocity parameter.

    摘要翻译： 提供一种烃吸附剂状态确定装置，用于补偿烃吸附剂由于废气流速的变化而吸收水分的能力，从而准确地确定烃吸附剂的状态，包括其劣化，而不管 废气流量的变化。 碳氢化合物吸附剂状态决定装置确定在内燃机的排气系统中设置的用于吸附废气中的碳氢化合物和水分的烃类吸附剂的状态。 碳氢化合物吸附剂状态确定装置包括用于检测通过烃类吸附剂的废气湿度的下游湿度传感器，用于检测表示废气流速的流速参数的流速参数检测器，以及ECU 用于根据检测到的废气湿度和流速参数确定烃类吸附剂的状态。

    Fault determining apparatus for exhaust passage switching valve
    3.
    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。

    Hydrocarbon adsorbent state monitoring device
    5.
    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。

    Apparatus for evaluating deteriorated state of hydrocarbon adsorbent
    7.
    发明授权
    Apparatus for evaluating deteriorated state of hydrocarbon adsorbent 失效
    评估烃吸附剂劣化状态的装置

    公开(公告)号：US06769417B1

    公开(公告)日：2004-08-03

    申请号：US10633570

    申请日：2003-08-05

    申请人： Masaki Ueno ,  Hideharu Yamazaki ,  Tetsuo Endo

    发明人： Masaki Ueno ,  Hideharu Yamazaki ,  Tetsuo Endo

    IPC分类号： F02M3302

    CPC分类号： F01N13/009 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0878 ,  F01N11/00 ,  F01N2560/028 ,  F02D41/0235 ,  F02D41/1441 ,  F02D41/1459 ,  F02D41/1495 ,  F02D41/1496 ,  F02D2041/1472 ,  F02D2041/228 ,  F02M26/15 ,  Y02T10/20 ,  Y02T10/47

    摘要： After an internal combustion engine 1 has started to operate, a changing timing is detected at which a humidity represented by the output signal of a humidity sensor 23 disposed downstream of a hydrocarbon adsorbent 12 changes to a tendency to monotonously increase from a low humidity to a high humidity. Data representing a total amount of moisture carried by an exhaust gas emitted by the internal combustion engine 1 to the hydrocarbon adsorbent 12 up to the changing timing is acquired as a deterioration evaluating parameter. The deteriorated state of the hydrocarbon adsorbent is evaluated based on the deterioration evaluating parameter. The changing timing is detected as a timing at which the relative humidity represented by the output signal of the humidity sensor 23 has changed from a low humidity to a high humidity by a preset value. The preset value is variably set in order to compensate for characteristic changes of the humidity sensor 23 and variations of individual humidity sensors. The deteriorated state of the hydrocarbon adsorbent can thus adequately be monitored while compensating for the characteristic changes of the humidity sensor and the variations of individual humidity sensors.

    摘要翻译： 在内燃机1开始运行之后，检测出由位于碳氢化合物吸附剂12的下游侧的湿度传感器23的输出信号所表示的湿度变化为从低湿度向单调增加的趋势的变更时刻 高湿度 获取表示由内燃机1向碳氢化合物吸附剂12排出的废气在变更时刻所携带的水分总量的数据作为劣化评价参数。 基于劣化评价参数来评价烃吸附剂的劣化状态。 作为将由湿度传感器23的输出信号表示的相对湿度从低湿度变为高湿度的预定值的时刻，检测出变更时刻。 为了补偿湿度传感器23的特性变化和各个湿度传感器的变化，可以设定预设值。 因此可以充分监测烃吸附剂的劣化状态，同时补偿湿度传感器的特性变化和各个湿度传感器的变化。

    Degradation discrimination system of internal combustion engine exhaust gas purification system
    9.
    发明授权
    Degradation discrimination system of internal combustion engine exhaust gas purification system 失效
    内燃机废气净化系统劣化辨别系统

    公开(公告)号：US06334304B1

    公开(公告)日：2002-01-01

    申请号：US09551170

    申请日：2000-04-17

    申请人： Kei Machida ,  Tetsuo Endo ,  Shiro Takakura ,  Yuji Yasui

    发明人： Kei Machida ,  Tetsuo Endo ,  Shiro Takakura ,  Yuji Yasui

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  B01D53/944 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N2550/03 ,  F01N2570/12 ,  F01N2900/0422 ,  F02D41/1446 ,  F02D45/00 ,  F02D2200/0804 ,  Y02T10/22 ,  Y02T10/47

    摘要： A system for discriminating degradation of an exhaust purification system of an internal combustion engine having an adsorbent installed at a bypass exhaust gas passage adsorbing unburned HC in exhaust gas generated by the engine. Based on the assumption that the degradation of the adsorbent made from zeolite progresses or advances depending on its temperature, the temperature is detected and if it exceeds a predetermined temperature, an index indicative of the degree of degradation progress is determined based on a surplus exceeding the predetermined temperature. The index is accumulated to be compared with a threshold value and the adsorbent is discriminated to be degraded when the accumulated index exceeds the threshold value, thereby enabling to discriminate the adsorbent degradation accurately with a simple configuration.

    摘要翻译： 一种用于区分内燃机的排气净化系统的劣化的系统，所述内燃机的排气净化系统具有安装在旁路废气通道上的吸附剂，吸附由发动机产生的废气中的未燃HC。 基于由沸石制成的吸附剂的降解根据其温度进行或退化的假设，检测温度并且如果其超过预定温度，则表示降解进行程度的指标基于超过 预定温度。 累积指数与阈值进行比较，并且当累积指数超过阈值时，鉴别吸附剂劣化，从而能够以简单的配置精确地鉴别吸附剂劣化。

    Method of evaluating deteriorated state of exhaust gas adsorbent
    10.
    发明授权
    Method of evaluating deteriorated state of exhaust gas adsorbent 失效
    评价废气吸附剂劣化状态的方法

    公开(公告)号：US06367245B1

    公开(公告)日：2002-04-09

    申请号：US09654157

    申请日：2000-09-01

    申请人： Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

    发明人： Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/03 ,  F01N2900/0422 ,  Y02T10/47

    摘要： Exhaust gas sensors or air-fuel ratio sensors for generating outputs depending on the concentration of HC are disposed respectively upstream and downstream of an HC adsorbent in an exhaust passage. When an exhaust gas emitted from an internal combustion engine is supplied to the exhaust passage to allow the HC adsorbent to adsorb HC in the exhaust gas, an amount of HC adsorbed by the HC adsorbent per unit time is determined based on the difference between outputs from the exhaust gas sensors. A deteriorated state of the HC adsorbent is evaluated by comparing the determined adsorbed amount of HC and its integrated value with a threshold set depending on a temperature or the like of the HC adsorbent.

    摘要翻译： 用于根据HC浓度产生输出的排气传感器或空燃比传感器分别设置在排气通道中的HC吸附剂的上游和下游。 当从内燃机排出的排气被供给到排气通道以允许HC吸附剂吸附废气中的HC时，每单位时间吸附HC吸附剂的HC量根据来自 废气传感器。 通过将所确定的HC的吸附量与其积分值进行比较，根据HC吸附剂的温度等设定阈值来评价HC吸附剂的劣化状态。