公开(公告)号：US06763799B2

公开(公告)日：2004-07-20

申请号：US10305968

申请日：2002-11-29

申请人： Takekazu Ito ,  Hiroki Matsuoka ,  Tatsumasa Sugiyama ,  Yasuhiro Ohtsubo ,  Taro Aoyama ,  Jun Tahara ,  Mamoru Oki ,  Masakuni Yokoyama ,  Hideyuki Kusatugu ,  Keiichi Mizuguchi

发明人： Takekazu Ito ,  Hiroki Matsuoka ,  Tatsumasa Sugiyama ,  Yasuhiro Ohtsubo ,  Taro Aoyama ,  Jun Tahara ,  Mamoru Oki ,  Masakuni Yokoyama ,  Hideyuki Kusatugu ,  Keiichi Mizuguchi

IPC分类号： F02M2507

CPC分类号： F02D41/307 ,  F02B1/12 ,  F02B29/0406 ,  F02D41/0057 ,  F02D41/029 ,  F02D41/3011 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/1431 ,  F02D2041/389 ,  F02D2250/38 ,  F02M26/05 ,  F02M26/10 ,  F02M26/15 ,  F02M26/28 ,  F02M26/35 ,  Y02T10/47

摘要： An internal combustion is capable of switching, during engine operation, between a low-temperature combustion state in which an intake air with a high EGR rate is burned to operate the engine, and a normal combustion state in which an intake air with a low EGR rate is burned to operate the engine. In the internal combustion engine, a pilot injection is executed in addition to a main fuel injection, and furthermore the execution of the pilot injection is restricted during the engine operation with a combustion state switched to the low-temperature combustion state.

摘要翻译： 内燃可以在发动机运转期间在燃烧高EGR率的进气以燃烧发动机的低温燃烧状态和具有低EGR的进气的正常燃烧状态之间切换 速率被燃烧以操作发动机。 在内燃机中，除了主燃料喷射之外还执行先导喷射，此外，在燃烧状态切换到低温燃烧状态的发动机运转期间，引燃喷射的执行受到限制。

公开(公告)号：US07347043B2

公开(公告)日：2008-03-25

申请号：US11397573

申请日：2006-04-05

申请人： Jun Tahara ,  Tatsumasa Sugiyama

发明人： Jun Tahara ,  Tatsumasa Sugiyama

IPC分类号： F01N3/00

CPC分类号： F01N3/0842 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0821 ,  F01N9/002 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/03 ,  F01N2610/03 ,  Y02T10/47

摘要： The exhaust gas purifier includes a fuel addition valve, an NOx catalytic converter, and a catalyst loaded PM filter. The catalyst temperature of catalyst loaded PM filter is increased to a target temperature by adding fuel to the exhaust gas from fuel addition valve, whereby PM trapped on the filter is purified. When the NOx catalytic converter is deteriorated, the target catalyst temperature of catalyst loaded PM filter is changed to a value larger than the target catalyst temperature when the NOx catalytic converter is in a normal state.

摘要翻译： 废气净化器包括燃料添加阀，NOx催化转化器和负载催化剂的PM过滤器。 催化剂负载的PM过滤器的催化剂温度通过向来自燃料添加阀的排气添加燃料而增加到目标温度，由此净化过滤器上的PM。 当NOx催化转化器劣化时，催化剂负载的PM过滤器的目标催化剂温度在NOx催化转化器处于正常状态时变为大于目标催化剂温度的值。

公开(公告)号：US20060225407A1

公开(公告)日：2006-10-12

申请号：US11397573

申请日：2006-04-05

申请人： Jun Tahara ,  Tatsumasa Sugiyama

发明人： Jun Tahara ,  Tatsumasa Sugiyama

IPC分类号： F01N3/00

CPC分类号： F01N3/0842 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0821 ,  F01N9/002 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/03 ,  F01N2610/03 ,  Y02T10/47

摘要： The exhaust gas purifier includes a fuel addition valve, an NOx catalytic converter, and a catalyst loaded PM filter. The catalyst temperature of catalyst loaded PM filter is increased to a target temperature by adding fuel to the exhaust gas from fuel addition valve, whereby PM trapped on the filter is purified. When the NOx catalytic converter is deteriorated, the target catalyst temperature of catalyst loaded PM filter is changed to a value larger than the target catalyst temperature when the NOx catalytic converter is in a normal state.

摘要翻译： 废气净化器包括燃料添加阀，NOx催化转化器和负载催化剂的PM过滤器。 催化剂负载的PM过滤器的催化剂温度通过向来自燃料添加阀的排气添加燃料而增加到目标温度，由此净化过滤器上的PM。 当NOx催化转化器劣化时，催化剂负载的PM过滤器的目标催化剂温度在NOx催化转化器处于正常状态时变为大于目标催化剂温度的值。

公开(公告)号：US20060016180A1

公开(公告)日：2006-01-26

申请号：US11181823

申请日：2005-07-15

申请人： Tetsuji Tomita ,  Tatsumasa Sugiyama ,  Jun Tahara

发明人： Tetsuji Tomita ,  Tatsumasa Sugiyama ,  Jun Tahara

IPC分类号： F01N3/00

CPC分类号： F02D21/08 ,  F01N3/0253 ,  F01N11/002 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/029 ,  F02D2200/0802 ,  F02M26/05 ,  F02M26/15 ,  F02M26/35

摘要： An apparatus for preventing a filter for purifying exhaust gas emitted by a vehicle diesel engine from overheating is provided. The filter filters particulate matter in exhaust gas. Particulate matter that is accumulated in the filter through filtering is burned and purified by executing a temperature increase process in which the filter is heated. The apparatus includes an electronic control unit as overheat prevention means. During the temperature increase process, the overheat prevention means executes an increase process for increasing the flow rate of exhaust gas when the filter is likely to overheat. As a result, the filter is effectively prevented from overheating.

摘要翻译： 提供一种用于防止车辆柴油发动机排放的排气净化过滤器过热的装置。 过滤器过滤器排除废气中的颗粒物。 通过过滤器积聚在过滤器中的颗粒物质通过执行过滤器被加热的升温过程被燃烧和净化。 该装置包括作为过热防止装置的电子控制单元。 在升温过程中，过热防止装置执行用于在过滤器过热时提高废气流量的增加处理。 结果，有效地防止了过滤器的过热。

公开(公告)号：US08266893B2

公开(公告)日：2012-09-18

申请号：US12092218

申请日：2006-10-31

申请人： Shigehiro Matsuno ,  Jun Tahara

发明人： Shigehiro Matsuno ,  Jun Tahara

IPC分类号： F01N3/00

CPC分类号： B01D53/9409 ,  B01D53/9495 ,  B01D2251/208 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/0275 ,  F02D41/1441 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02M26/15 ,  F02M26/23 ,  F02M26/35

摘要： An adding time a of a fuel addition to an exhaust system is limited to a guard value G or less during an adding period A of a concentrated intermittent fuel of a catalyst recovery control. Accordingly, a one-time fuel adding amount from an adding valve 46 is limited to be equal to or less than a predetermined value, and it is possible to prevent such a great amount of unburned fuel component that cannot be fully purified by a NOx catalyst from being supplied to the NOx catalyst during the adding period A. Further, if a total amount (GF+Q1)·t of the unburned fuel component supplied to the NOx catalyst during the adding period A reaches an allowable upper limit value UL, the concentrated intermittent fuel addition is canceled and a suspend period B is forcibly started. Accordingly, it is possible to prevent a total amount of such a great amount of unburned fuel component that cannot be fully purified by the NOx catalyst from being supplied to the NOx catalyst during the adding period A. Therefore, generation of white smoke in exhaust gas of the internal combustion engine by an excessive supply of the unburned fuel component to the NOx catalyst at a time of executing catalyst recovery control can be prevented.

摘要翻译： 在催化剂回收控制的浓缩间歇燃料的添加期间A中，排气系统的添加燃料添加时间a被限制在保护值G以下。 因此，来自加法阀46的一次性燃料添加量被限制在等于或小于预定值，并且可以防止这样大量的不能被NOx催化剂完全净化的未燃燃料成分 在添加期间A期间供给到NOx催化剂。此外，如果在添加期间A中供给到NOx催化剂的未燃燃料成分的总量（GF + Q1）·t达到容许上限值UL，则 集中的间歇燃料添加被取消并且暂停期间B被强制启动。 因此，可以防止在添加期间A中将不能被NOx催化剂全部纯化的大量未燃燃料成分的总量供给至NOx催化剂。因此，排气中产生白烟 可以防止在执行催化剂回收控制时过量地供应未燃燃料组分到NOx催化剂的内燃机。

公开(公告)号：US20090301063A1

公开(公告)日：2009-12-10

申请号：US12065237

申请日：2006-08-28

申请人： Jun Tahara ,  Masaaki Kobayashi

发明人： Jun Tahara ,  Masaaki Kobayashi

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： B01D53/9495 ,  B01D53/9445 ,  B01D2251/208 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/106 ,  F01N9/00 ,  F01N11/002 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2250/14 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/1811 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/22 ,  Y02T10/47

摘要： An ECU corrects a fuel addition interval, based on an amount of change between an exhaust gas temperature at present and a basic exhaust gas temperature obtained when a basic addition interval is set, to reduce the fuel addition interval with an increase in the amount of change in the exhaust gas temperature (steps ST1-ST4). With such correction of the addition interval, when the exhaust gas temperature is increased in a highland region or the like, the fuel addition interval is corrected to be reduced and an fuel addition amount is corrected to be increased according to the increase in the exhaust gas temperature. Thereby, an increase in a temperature at a tip portion of a fuel addition valve can be suppressed, and thus clogging of an ejection hole of the fuel addition valve with deposits can be avoided.

摘要翻译： ECU根据当前排气温度与设定基本相加间隔之间获得的基本排气温度之间的变化量来校正燃料添加间隔，以随着变化量的增加而减少燃料添加间隔 在排气温度下（步骤ST1〜ST4）。 通过这种相加间隔的校正，当在高地区域等中排气温度升高时，燃料添加间隔被校正为减少，并且根据废气的增加来校正燃料添加量以增加燃料添加量 温度。 因此，能够抑制燃料添加阀的前端部的温度上升，能够避免燃料添加阀的喷出孔堵塞。

公开(公告)号：US20090288393A1

公开(公告)日：2009-11-26

申请号：US12092218

申请日：2006-10-31

申请人： Shigehiro Matsuno ,  Jun Tahara

发明人： Shigehiro Matsuno ,  Jun Tahara

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： B01D53/9409 ,  B01D53/9495 ,  B01D2251/208 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/0275 ,  F02D41/1441 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02M26/15 ,  F02M26/23 ,  F02M26/35

摘要： An adding time a of a fuel addition to an exhaust system is limited to a guard value G or less during an adding period A of a concentrated intermittent fuel of a catalyst recovery control. Accordingly, a one-time fuel adding amount from an adding valve 46 is limited to be equal to or less than a predetermined value, and it is possible to prevent such a great amount of unburned fuel component that cannot be fully purified by a NOx catalyst from being supplied to the NOx catalyst during the adding period A. Further, if a total amount (GF+Q1)·t of the unburned fuel component supplied to the NOx catalyst during the adding period A reaches an allowable upper limit value UL, the concentrated intermittent fuel addition is canceled and a suspend period B is forcibly started. Accordingly, it is possible to prevent a total amount of such a great amount of unburned fuel component that cannot be fully purified by the NOx catalyst from being supplied to the NOx catalyst during the adding period A. Therefore, generation of white smoke in exhaust gas of the internal combustion engine by an excessive supply of the unburned fuel component to the NOx catalyst at a time of executing catalyst recovery control can be prevented.

摘要翻译： 在催化剂回收控制的浓缩间歇燃料的添加期间A中，排气系统的添加燃料添加时间a被限制在保护值G以下。 因此，来自加法阀46的一次性燃料添加量被限制在等于或小于预定值，并且可以防止这样大量的不能被NOx催化剂完全净化的未燃燃料成分 在添加期间A期间供给到NOx催化剂。此外，如果在添加期间A中供给至NOx催化剂的未燃烧燃料成分的总量（GF + Q1）·t达到容许上限值UL，则 集中的间歇燃料添加被取消并且暂停期间B被强制启动。 因此，可以防止在添加期间A中将不能被NOx催化剂全部纯化的大量未燃燃料成分的总量供给至NOx催化剂。因此，排气中产生白烟 可以防止在执行催化剂回收控制时过量地供应未燃燃料组分到NOx催化剂的内燃机。

公开(公告)号：US08229654B2

公开(公告)日：2012-07-24

申请号：US12678915

申请日：2008-09-19

申请人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

发明人： Jun Tahara ,  Mitsuhiro Nada ,  Hiroki Kinuhata

IPC分类号： B60T7/12 ,  G05D1/00

CPC分类号： F02D31/009 ,  F02D41/22 ,  F02D2041/227 ,  F02D2250/26 ,  Y02T10/40

摘要： An output restriction device for restricting engine output when a drive power output system for an internal combustion engine has an abnormality is provided. The output restriction device includes an abnormality detection unit, and initial restriction unit, and a secondary restriction unit. The abnormality restriction unit detects an abnormality in the drive power output system. The initial restriction unit restricts a tolerable range of the engine output to a first restriction region when the abnormality detection unit detects an abnormality in the drive power output system. A secondary restriction unit shifts the tolerable range of the engine output to a second restriction region, which has an upper limit lower than that of the first restriction region, in accordance with an operation history of the engine after the initial restriction unit restricts the tolerable range of the engine output to the first restriction region.

摘要翻译： 提供一种用于当内燃机的驱动力输出系统异常时用于限制发动机输出的输出限制装置。 输出限制装置包括异常检测单元和初始限制单元以及次级限制单元。 异常限制部检测驱动力输出系统的异常。 当异常检测单元检测到驱动功率输出系统中的异常时，初始限制单元将发动机输出的容许范围限制到第一限制区域。 次级限制单元根据发动机的运行历史，在初始限制单元限制容许范围之后，将发动机输出的可容许范围转移到具有比第一限制区域的上限低的上限的第二限制区域 的发动机输出到第一限制区域。

公开(公告)号：US20080006024A1

公开(公告)日：2008-01-10

申请号：US11812320

申请日：2007-06-18

申请人： Jun Tahara ,  Fuminori Honjo

发明人： Jun Tahara ,  Fuminori Honjo

IPC分类号： F01N3/035 ,  F01N3/023

CPC分类号： F01N3/0814 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/002 ,  F01N13/0097 ,  F01N2560/025 ,  F01N2560/06 ,  F02B37/00 ,  F02D11/10 ,  F02D41/0002 ,  F02D41/028 ,  F02D41/029 ,  F02D41/10 ,  Y02T10/47

摘要： A PM catalyst regeneration control for the purpose of “soot removal” is performed prior to a sulfur poisoning recovery control. In the PM catalyst regeneration control, PM deposits in a catalyst are burned. A target throttle opening degree for the sulfur poisoning recovery control is preset smaller than a target throttle opening for the PM catalyst regeneration control in order to reduce the intake air volume during deceleration. A catalyst bed temperature is thus prevented from dropping, and therefore maintained at a level appropriate to sulfur poisoning recovery. Controlling the intake air volume during deceleration in such a manner results in more efficient catalyst recovery from sulfur poisoning, so that the fuel economy is maintained during the sulfur poisoning recovery control.

摘要翻译： 在硫中毒恢复控制之前进行用于“除烟”目的的PM催化剂再生控制。 在PM催化剂再生控制中，催化剂中的PM沉积物被燃烧。 为了减少减速时的进气量，将硫中毒恢复控制的目标节气门开度设定为比PM催化剂再生控制用的目标节气门开度小。 因此，可以防止催化剂床温度下降，因此保持在适于硫中毒回收的水平。 以这种方式控制减速期间的进气量导致从硫中毒更有效的催化剂回收，使得在硫中毒恢复控制期间维持燃料经济性。

公开(公告)号：US08181447B2

公开(公告)日：2012-05-22

申请号：US12065237

申请日：2006-08-28

申请人： Jun Tahara ,  Masaaki Kobayashi

发明人： Jun Tahara ,  Masaaki Kobayashi

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： B01D53/9495 ,  B01D53/9445 ,  B01D2251/208 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/106 ,  F01N9/00 ,  F01N11/002 ,  F01N13/0097 ,  F01N2250/02 ,  F01N2250/14 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/1811 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/22 ,  Y02T10/47

摘要： An ECU corrects a fuel addition interval, based on an amount of change between an exhaust gas temperature at present and a basic exhaust gas temperature obtained when a basic addition interval is set, to reduce the fuel addition interval with an increase in the amount of change in the exhaust gas temperature. With such correction of the addition interval, when the exhaust gas temperature is increased in a highland region or the like, the fuel addition interval is corrected to be reduced and an fuel addition amount is corrected to be increased according to the increase in the exhaust gas temperature. Thereby, an increase in a temperature at a tip portion of a fuel addition valve can be suppressed, and thus clogging of an ejection hole of the fuel addition valve with deposits can be avoided.

摘要翻译： ECU根据当前排气温度与设定基本相加间隔之间获得的基本排气温度之间的变化量来校正燃料添加间隔，以随着变化量的增加而减少燃料添加间隔 在废气温度下。 通过这种相加间隔的校正，当在高地区域等中排气温度升高时，燃料添加间隔被校正为减少，并且根据废气的增加来校正燃料添加量以增加燃料添加量 温度。 因此，能够抑制燃料添加阀的前端部的温度上升，能够避免燃料添加阀的喷出孔堵塞。