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121 条记录 (耗时 0.029 秒)

    Diagnosis apparatus for internal combustion engine
    73.
    发明授权
    Diagnosis apparatus for internal combustion engine 失效
    内燃机诊断装置

    公开(公告)号：US06883307B2

    公开(公告)日：2005-04-26

    申请号：US10083496

    申请日：2002-02-27

    申请人： Yoichi Iihoshi ,  Minoru Ohsuga ,  Yutaka Takaku

    发明人： Yoichi Iihoshi ,  Minoru Ohsuga ,  Yutaka Takaku

    IPC分类号： F02D45/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/10 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N11/00 ,  F01N13/02 ,  F02D41/02 ,  F02D41/14 ,  F01N3/00

    CPC分类号： F01N3/0835 ,  F01N11/002 ,  F01N11/007 ,  F01N13/009 ,  F01N2550/02 ,  F01N2550/03 ,  F02D41/027 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/1495 ,  F02D41/187 ,  Y02T10/20 ,  Y02T10/47

    摘要： In an internal combustion engine diagnosis apparatus comprising a cleanup catalyst arranged on an exhaust pipe of an internal combustion engine and an HC adsorption catalyst arranged downstream of and in parallel to the cleanup catalyst, degradation and failure of the HC adsorption catalyst is accurately diagnosed. The internal combustion engine diagnosis apparatus comprising the cleanup catalyst arranged in the exhaust pipe of the internal combustion engine; and the HC adsorption catalyst arranged in parallel to and downstream of the cleanup catalyst, during high temperature period the HC adsorption catalyst desorbing and cleaning up HC desorbed during low temperature period, wherein degradation of the HC adsorption catalyst is diagnosed based on a gradient of temperature of the HC adsorption catalyst during a period when temperature of the HC adsorption catalyst is within a range of 50° C. to 250° C.

    摘要翻译： 在内燃机诊断装置中，具有布置在内燃机的排气管上的净化催化剂和布置在净化催化剂的下游并与催化剂平行的HC吸附催化剂，能够准确地诊断HC吸附催化剂的劣化和失效。 所述内燃机诊断装置包括设置在所述内燃机的排气管内的净化催化剂; HC吸附催化剂在清洗催化剂平行于和下游排列，在高温期间HC吸附催化剂解吸和清除HC在低温期间脱附，其中HC吸附催化剂的降解基于温度梯度被诊断 的HC吸附催化剂的温度在50℃〜250℃的范围内。

    Evaluating method for no eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor
    74.
    发明申请
    Evaluating method for no eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor 审中-公开
    无消除催化剂的评价方法，评价装置及其效率控制方法

    公开(公告)号：US20050060986A1

    公开(公告)日：2005-03-24

    申请号：US10986140

    申请日：2004-11-12

    申请人： Minoru Ohsuga ,  Mamoru Fujieda ,  Nobuo Kurihara

    发明人： Minoru Ohsuga ,  Mamoru Fujieda ,  Nobuo Kurihara

    IPC分类号： B01D53/30 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F01N11/00 ,  F02D41/02 ,  F01N3/00 ,  F01N3/10 ,  F01N7/00

    CPC分类号： F02D41/0235 ,  B01D53/8696 ,  B01D53/9495 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/22 ,  Y02T10/47 ,  Y10T436/177692 ,  Y10T436/20 ,  Y10T436/206664 ,  Y10T436/208339 ,  Y10T436/21

    摘要： In order to prevent a catalyst for an internal combustion engine from decreasing efficiency by deterioration after long time use of the catalyst, the decreased efficiency of the catalyst is determined, and the internal engine is controlled based on results of the determination so as to maintain high efficiency of the catalyst. The catalyst is installed in an exhaust pipe of the engine. Sensors for detecting conditions of exhaust gas both at upstream side and downstream side of the catalyst are provided, respectively. As for the sensor, for example, an oxygen sensor of which output varies stepwise at λ=1, or a sensor of which output varies in proportion to air-fuel ratio can be used. Detected values of the sensors are taken into a control unit, eliminating efficiency and deteriorating degree of the catalyst are estimated by comparison of the detected values, and the engine is controlled so that the eliminating efficiency becomes maximum. In accordance with the present invention, a preferable exhaust gas cleaning characteristics of the catalyst can be maintained because the decreased efficiency of the catalyst is determined exactly and the engine is controlled so as to prevent the catalyst from decreasing efficiency.

    摘要翻译： 为了防止内燃机的催化剂长时间使用催化剂后的劣化而降低效率，确定催化剂的效率降低，并且根据测定结果来控制内部发动机以保持高 催化剂的效率。 催化剂安装在发动机的排气管中。 分别提供用于检测催化剂的上游侧和下游侧的废气条件的传感器。 对于传感器，例如，可以使用其输出在λ= 1处逐步变化的氧传感器，或者其输出与空燃比成比例地变化的传感器。 传感器的检测值被带入控制单元，通过比较检测值来估计催化剂的效率和劣化程度，并且控制发动机以使消除效率变得最大。 根据本发明，由于精确地确定催化剂的效率降低并且控制发动机以防止催化剂效率降低，因此可以保持催化剂的优选废气清洁特性。

    Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor
    75.
    发明授权
    Evaluating method for NOx eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor 失效
    NOx排出催化剂的评价方法及其评价装置及其效率控制方法

    公开(公告)号：US06812029B2

    公开(公告)日：2004-11-02

    申请号：US09814792

    申请日：2001-03-23

    申请人： Minoru Ohsuga ,  Mamoru Fujieda ,  Nobuo Kurihara

    发明人： Minoru Ohsuga ,  Mamoru Fujieda ,  Nobuo Kurihara

    IPC分类号： G01N3110

    CPC分类号： F02D41/0235 ,  B01D53/8696 ,  B01D53/9495 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/22 ,  Y02T10/47 ,  Y10T436/177692 ,  Y10T436/20 ,  Y10T436/206664 ,  Y10T436/208339 ,  Y10T436/21

    摘要： In order to prevent a catalyst for an internal combustion engine from decreasing efficiency by deterioration after long time use of the catalyst, the decreased efficiency of the catalyst is determined, and the internal engine is controlled based on results of the determination so as to maintain high efficiency of the catalyst. The catalyst is installed in an exhaust pipe of the engine. Sensors for detecting conditions of exhaust gas both at upstream side and downstream side of the catalyst are provided, respectively. As for the sensor, for example, an oxygen sensor of which output varies stepwise at &lgr;=1, or a sensor of which output varies in proportion to air-fuel ratio can be used. Detected values of the sensors are taken into a control unit, eliminating efficiency and deteriorating degree of the catalyst are estimated by comparison of the detected values, and the engine is controlled so that the eliminating efficiency becomes maximum. In accordance with the present invention, a preferable exhaust gas cleaning characteristics of the catalyst can be maintained because the decreased efficiency of the catalyst is determined exactly and the engine is controlled so as to prevent the catalyst from decreasing efficiency.

    Engine Controller
    79.
    发明申请
    Engine Controller 有权
    发动机控制器

    公开(公告)号：US20090292448A1

    公开(公告)日：2009-11-26

    申请号：US12470202

    申请日：2009-05-21

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

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

    IPC分类号： F02D41/30 ,  F02P5/00 ,  F01N3/00

    CPC分类号： F02D37/02 ,  F02D35/023 ,  F02D41/064 ,  F02D41/1454 ,  F02D41/1497 ,  F02D2200/1012 ,  F02P5/103 ,  F02P5/1506 ,  Y02T10/46

    摘要： An engine controller capable of optimizing both the air-fuel ratio and the ignition timing to provide HC-minimized performance under the relevant driving conditions (environmental conditions) in order to minimize the amount of HC emitted from an engine at the time of start-up (before catalyst activation) is provided. The engine controller includes: air-fuel ratio control means for controlling the air-fuel ratio to be within a predetermined range (for example, 14.5 to 16.5) when the engine is operated at a certain driving condition (for example, in a state in which the catalyst is not activated such as the time of starting a cooler, or idling time); and ignition timing correction means for correcting the ignition timing to the retard side when the engine is operated at the certain driving condition and the air-fuel ratio is within the predetermined range.

    摘要翻译： 一种能够优化空燃比和点火正时两者的发动机控制器，以在相关驾驶条件（环境条件）下提供HC最小化的性能，以便在起动时最小化从发动机排出的HC的量 （催化剂活化之前）。 发动机控制器包括：空燃比控制装置，用于在发动机在某一行驶状态下操作时（例如，在一定的驾驶状态下）将空燃比控制在预定范围内（例如14.5至16.5） 催化剂未启动，例如启动冷却器的时间或空转时间）; 以及点火正时校正装置，用于当发动机在特定驾驶状态下操作并且空燃比在预定范围内时，将点火正时校正到延迟侧。

    Engine control apparatus
    80.
    发明授权
    Engine control apparatus 有权
    发动机控制装置

    公开(公告)号：US07472692B2

    公开(公告)日：2009-01-06

    申请号：US11656383

    申请日：2007-01-23

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

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

    IPC分类号： F02M51/00 ,  G06F19/00

    CPC分类号： F02D41/061 ,  F02D19/0615 ,  F02D19/0631 ,  F02D19/0636 ,  F02D19/0657 ,  F02D41/0025 ,  F02D41/1454 ,  F02D41/1487 ,  F02D41/187 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0612 ,  Y02T10/36

    摘要： An engine control apparatus which can ensure and maintain a stability and constant exhaust emission characteristics even in such a condition that a nature of a fuel used as present is unsure, and which is robust among different fuel natures, comprising a plurality of different nature fuel quantity computing means and an operating condition detecting means for detecting an operating condition of an engine, wherein a first nature fuel quantity computing means among the plurality of different nature fuel quantity computing means is used as a fuel quantity computing means during an engine start, and the first nature fuel quantity computing means is forcibly changed over into a second nature fuel quantity computing means if an engine operating condition detected by the operating condition detecting means satisfies a predetermined term.

    摘要翻译： 一种发动机控制装置，其即使在当前所使用的燃料的性质不确定且在不同的燃料性质中是鲁棒的，这样可以确保和保持稳定性和恒定的废气排放特性，其包括多种不同的自然燃料量 计算装置和操作条件检测装置，用于检测发动机的运行状态，其中在发动机起动期间，使用多个不同性质燃料量计算装置中的第一自然燃料量计算装置作为燃料量计算装置， 如果由操作条件检测装置检测到的发动机操作条件满足预定项，则第一自然燃料量计算装置被强制地转换成第二自然燃料量计算装置。