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    Exhaust air purification device of internal-combustion engine
    91.
    发明专利
    Exhaust air purification device of internal-combustion engine 有权
    内燃机排气净化装置

    公开(公告)号：JP2008157192A

    公开(公告)日：2008-07-10

    申请号：JP2006349762

    申请日：2006-12-26

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TAWARA ATSUSHI

    IPC: F01N3/02 ,  B01D46/42 ,  B01D53/94 ,  F01N3/00 ,  F02D43/00 ,  F02M25/07

    CPC classification number: F02D41/024 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/2006 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/03 ,  F02B29/0406 ,  F02B37/22 ,  F02B2275/14 ,  F02D41/0007 ,  F02D41/0055 ,  F02D41/028 ,  F02D41/029 ,  F02M26/05 ,  F02M26/23 ,  F02M26/49 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/26 ,  Y02T10/47

    Abstract: PROBLEM TO BE SOLVED: To provide an exhaust air purification device of an internal-combustion engine in which it can be prevented that an exhaust-air temperature becomes unable to be appropriately raised during exhaust-air temperature rising control due to a phenomena that movable members are temporally brought into seized states. SOLUTION: In exhaust-air temperature rising control for filter regeneration, depending on an engine operating state, switching is performed between a first control mode for raising the exhaust-air temperature by utilizing an operation of an EGR valve 36 and a second control mode for raising the exhaust-air temperature without utilizing an operation of an EGR valve 36. Then, when the EGR valve 36 has been brought into the sized state at its totally closed position, during the exhaust-air temperature rising control, the first control mode is performed in substitute for the second control mode in the whole of a region where the second control mode is usually performed. Consequently, it can be avoided that the second control mode is performed with the EGR valve 36 temporally seized at its totally closed position. Further, it can be avoided that during the exhaust-air temperature rising control, the exhaust-air temperature cannot be allowed to rise appropriately for filter regeneration due to the performance of the second control mode. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种内燃机的排气净化装置，其能够防止由于现象而在排气升温控制期间排气温度变得不能适当提高 动产成员暂时被扣押。 解决方案：在用于过滤器再生的废气升温控制中，根据发动机工作状态，在通过利用EGR阀36的操作提高排气温度的第一控制模式和第二控制模式之间进行切换 在不利用EGR阀36的操作的情况下提高排气温度的控制模式。然后，当EGR阀36处于其完全关闭位置的大小状态时，在排气升温控制期间，第一 在通常执行第二控制模式的区域的整体中执行控制模式来代替第二控制模式。 因此，可以避免在其完全关闭位置处暂时扣留EGR阀36来执行第二控制模式。 此外，可以避免在排气升温控制期间，由于第二控制模式的执行，排气温度不能适当地用于过滤器再生。 版权所有（C）2008，JPO＆INPIT

    Abnormality determining device of exhaust throttle valve and wastegate valve
    92.
    发明专利
    Abnormality determining device of exhaust throttle valve and wastegate valve 审中-公开
    排气阀和瓦斯阀异常判定装置

    公开(公告)号：JP2008121519A

    公开(公告)日：2008-05-29

    申请号：JP2006305458

    申请日：2006-11-10

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： YOKOI TATSUHISA ,  TAWARA ATSUSHI ,  OTSUBO YASUHIKO ,  UCHIDA TAKAHIRO

    IPC: F02D9/04 ,  F01N3/02

    Abstract: PROBLEM TO BE SOLVED: To provide an abnormality determining device capable of determining, even in an internal combustion engine for arranging an exhaust throttle valve and a wastegate valve in an exhaust passage of the internal combustion engine, abnormality of these valves.
    SOLUTION: The exhaust passage 14 of the internal combustion engine 10 is provided with a DPF 24 for collecting PM and the exhaust throttle valve 18 in order, and is provided with the wastegate valve 21 arranged in a wastegate 20 for bypassing the exhaust throttle valve 18. An electronic control device 40 of the internal combustion engine 10 has an opening-closing control means for controlling opening-closing operation of the exhaust throttle valve 18, an opening fixation determining means and a closing fixation determining means for determining that the exhaust throttle valve 18 and the wastegate valve 21 are fixed in opening or fixed in closing, when exhaust pressure detected by a pressure sensor 33 on the upstream side of the DPF 24 exceeds preset upper limit value and lower limit value, when controlling opening-closing of the exhaust throttle valve 18 by the opening-closing control means.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供一种即使在用于在内燃机的排气通道中排列排气节流阀和废气门阀的内燃机也能够确定这些阀的异常的异常判定装置。 解决方案：内燃机10的排气通道14设置有用于收集PM和排气节流阀18的DPF 24，并且设置有排气门阀21，排气门21布置在废气门20中以绕过排气 节气门18.内燃机10的电子控制装置40具有用于控制排气节流阀18的开闭动作的开闭控制装置，开闭固定判定装置和关闭固定判定装置， 排气节流阀18和废气门阀21在DPF24的上游侧的压力传感器33检测出的排气压力超过设定的上限值和下限值时，在打开或关闭时固定，当控制开闭 由开闭控制装置排出。 版权所有（C）2008，JPO＆INPIT

    Abnormality diagnosis device for internal combustion engine
    93.
    发明专利
    Abnormality diagnosis device for internal combustion engine 审中-公开
    内燃机异常诊断装置

    公开(公告)号：JP2007332932A

    公开(公告)日：2007-12-27

    申请号：JP2006168847

    申请日：2006-06-19

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TAWARA ATSUSHI ,  KANAZAWA SHOGO

    IPC: F02D45/00 ,  F01N3/02 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N3/36

    CPC classification number: F01N11/00 ,  F01N3/0231 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2033 ,  F01N9/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2550/04 ,  F01N2550/05 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/0402 ,  F01N2900/0421 ,  F01N2900/0422 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/47

    Abstract: PROBLEM TO BE SOLVED: To prevent erroneous determination of existence of abnormality when transient abnormality occurs. SOLUTION: There occurs abnormality which interferes with adjustment of a catalyst bed temperature average value Tave to a target bed temperature Tt during temperature rising control for filter regeneration. There exist some cases where such abnormality is caused permanently and the other where the abnormality is caused transiently. If the abnormality determination is made immediately after a learning value K updated to be a value corresponding to a deviation between the catalyst bed temperature average value Tave and target bed temperature Tt becomes a value out of an appropriate range even once, the determination results in an error even when the device is recovered from the abnormality thereafter and the learning value K falls within the appropriate range again. In order to prevent such occurrence, the count-up performed when the learning value K at update is a value out of the appropriate range is utilized to determine the occurrence of the abnormality. The determination of the abnormality occurrence is made if a counter value of a counter C for resetting the learning value K to an initial value "0" when the learning value K is within the appropriate range reaches the determination value of "2" or more. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：为了防止当发生瞬态异常时错误地确定异常。 解决方案：在过滤器再生的升温控制中，存在干扰催化剂床温度平均值Tave与目标床温度Tt的调整的异常。 存在这样的异常是永久性的，另一种是暂时引起异常的情况。 如果在更新为与催化剂床温度平均值Tave和目标床温度Tt之间的偏差相对应的值的学习值K之后立即进行异常确定，即使在一个适当范围内变为值一次，则确定结果为 即使设备从其后的异常中恢复并且学习值K再次落在适当的范围内。 为了防止这样的发生，利用更新时的学习值K在适当的范围内的值时进行的计数，以确定异常的发生。 如果在学习值K在适当范围内时将学习值K重新设定为初始值“0”的计数器C的计数值达到“2”以上的判定值，则进行异常判定。 版权所有（C）2008，JPO＆INPIT

    Exhaust emission control device for internal combustion engine
    94.
    发明专利
    Exhaust emission control device for internal combustion engine 审中-公开
    用于内燃机的排气排放控制装置

    公开(公告)号：JP2007040240A

    公开(公告)日：2007-02-15

    申请号：JP2005227046

    申请日：2005-08-04

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： KANAZAWA SHOGO ,  SUGIYAMA TATSUMASA ,  KOBAYASHI NOBUKI ,  TAWARA ATSUSHI

    IPC: F01N3/20 ,  B01D53/94 ,  F01N3/08 ,  F01N3/36

    Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine, capable of efficiently restoring the NOx storing capability of a NOx storage reduction catalyst. SOLUTION: The device comprises the NOx storage reduction catalyst 30 provided in an exhaust passage 22 of the internal combustion engine 10 which executes lean burn, and a fuel addition valve 26 provided in the exhaust passage 22 on the upstream side beyond the NOx storage reduction catalyst 30. The NOx storage reduction catalyst 30 occludes NOx in exhaust gas when the air-fuel ratio of exhaust gas flowing thereinto is lean, and reduces the NOx being occluded with the air-fuel ratio of the exhaust gas to be rich. By adding fuel to the exhaust gas with fuel injection from the fuel addition valve 26, the air-fuel ratio of the exhaust gas is temporarily changed to be rich to restore the NOx storing capability of the NOx storage reduction catalyst 30. A fuel addition amount per unit time for the fuel addition valve 26 is set in accordance with the temperature of an exhaust manifold 24. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决的问题：提供能够有效地恢复NOx储存还原催化剂的NOx储存能力的用于内燃机的废气排放控制装置。 解决方案：该装置包括设置在执行稀薄燃烧的内燃机10的排气通道22中的NOx储存还原催化剂30以及设置在排气通道22中的上游侧超过NOx的燃料添加阀26 储存还原催化剂30时，在排出气体的空燃比变稀的情况下，NOx吸留还原催化剂30吸收废气中的NOx，并且使废气的空燃比浓缩而使NOx被吸留。 通过从燃料添加阀26向具有燃料喷射的废气添加燃料，废气的空燃比暂时变为浓度，以恢复NOx储存还原催化剂30的NOx储存能力。燃料添加量 燃料添加阀26的单位时间根据排气歧管24的温度而设定。（C）2007，JPO＆INPIT

    Exhaust emission control device of internal combustion engine
    95.
    发明专利
    Exhaust emission control device of internal combustion engine 有权
    内燃机排气控制装置

    公开(公告)号：JP2006291837A

    公开(公告)日：2006-10-26

    申请号：JP2005112873

    申请日：2005-04-08

    Applicant: Toyota Industries Corp ,  Toyota Motor Corp ,  トヨタ自動車株式会社 ,  株式会社豊田自動織機

    Inventor： TAWARA ATSUSHI ,  YAMAMOTO TOSHIYUKI ,  HONJO NORITOSHI

    IPC: F02D45/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N3/36

    Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine capable of increasing the estimated accuracy of the temperature of a catalyst device. SOLUTION: This exhaust emission control device calculates the estimated value of the catalyst floor temperature of a catalyst carrying type PM filter 73 by combining a first estimated catalyst floor temperature calculated based on the measured value of a first exhaust gas temperature sensor 91 with a second estimated catalyst floor temperature calculated based on the measured value of a second exhaust gas temperature sensor 92. Furthermore, the degree of the reflection the first estimated catalyst floor temperature on the estimated value of the catalyst floor temperature and the degree of the reflection of the second estimated catalyst floor temperature on the estimated value of the catalyst floor temperature are set according to an exhaust gas flow. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 解决的问题：提供能够提高催化剂装置的温度的估计精度的内燃机的废气排放控制装置。 解决方案：该废气排放控制装置通过将基于第一排气温度传感器91的测量值计算出的第一估计催化剂底面温度与第一排气温度传感器91的测量值相结合，计算催化剂载体型PM过滤器73的催化剂底板温度的估计值 基于第二排气温度传感器92的测量值计算的第二估计催化剂底面温度。此外，第一估计催化剂底部温度与催化剂底板温度的估计值的反射程度和反射程度 根据废气流量来设定第二估计催化剂底板温度与催化剂底板温度的估计值。 版权所有（C）2007，JPO＆INPIT

    Controller of internal combustion engine
    96.
    发明专利
    Controller of internal combustion engine 审中-公开
    内燃机控制器

    公开(公告)号：JP2006291827A

    公开(公告)日：2006-10-26

    申请号：JP2005112854

    申请日：2005-04-08

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TAWARA ATSUSHI

    IPC: F02D45/00 ,  F01N3/02 ,  F01N3/24 ,  F01N3/36 ,  F02D41/04

    CPC classification number: Y02T10/47

    Abstract: PROBLEM TO BE SOLVED: To suppress conditions in which a calculated learned value becomes improper as a value corresponding to a stationary displacement between a catalyst floor temperature and a target floor temperature, and the supplied amount of the unburned fuel components for the learned value is excessively is excessively corrected. SOLUTION: When the target floor temperature Tt of a catalyst is increased more than before during the temperature raising control, the averaged value of the added amount of fuel from an addition valve 46 per unit time is increased so that the averaged value Tave of catalyst floor temperatures can follow up the target floor temperature Tt. However, a temperature difference ΔT between the averaged value Tave of the catalyst floor temperatures and the target floor temperature Tt is temporarily increased based on the heat capacity of the catalyst. If a learned value K is calculated based on a ratio Tt/Tave, the calculated learned value K becomes improper as a value corresponding to the stationary displacement between the averaged value Tave of the catalyst floor temperature and the target floor temperature Tt. However, the learning of the learned value K is prohibited in a period between the time when the target floor temperature Tt is increased more than before and the time when the catalyst floor temperature T is stabilized. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为了抑制计算学习值变得不适当的条件，作为对应于催化剂底板温度和目标楼层温度之间的静止位移的值，以及用于所学习的未燃烧燃料组分的供应量 过度的过度校正。 解决方案：当在升温控制期间催化剂的目标地板温度Tt比以前增加时，来自每单位时间的来自加法阀46的燃料的添加量的平均值增加，使得平均值Tave 催化剂地板温度可跟随目标楼层温度Tt。 然而，催化剂底板温度的平均值Tave与目标楼层温度Tt之间的温差ΔT基于催化剂的热容量暂时增加。 如果基于比率Tt / Tave计算学习值K，则计算出的学习值K变得不适于作为与催化剂底板温度的平均值Tave与目标楼层温度Tt之间的静止位移对应的值。 然而，在目标楼层温度Tt比以前增加的时间与催化剂楼层温度T稳定的时间之间的时间段内禁止学习值K的学习。 版权所有（C）2007，JPO＆INPIT

    Exhaust emission control catalyst control method and exhaust emission control catalyst control device for internal combustion engine
    97.
    发明专利
    Exhaust emission control catalyst control method and exhaust emission control catalyst control device for internal combustion engine 有权
    排气控制催化剂控制方法和排气控制催化剂控制装置内燃机

    公开(公告)号：JP2005083298A

    公开(公告)日：2005-03-31

    申请号：JP2003318109

    申请日：2003-09-10

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： KOBAYASHI NOBUKI ,  OTSUBO YASUHIKO ,  TAWARA ATSUSHI ,  SUGIYAMA TATSUMASA

    IPC: B01D53/86 ,  B01D53/94 ,  F01N3/025 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N3/36 ,  F01N9/00 ,  F01N13/02 ,  F02B37/00 ,  F02D41/02 ,  F02D41/14

    CPC classification number: F02D41/1454 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2570/04 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/028 ,  F02D41/1446 ,  F02D41/405 ,  Y02T10/47

    Abstract: PROBLEM TO BE SOLVED: To prevent heat deterioration acceleration of an exhaust emission control catalyst in the downstream side and worsening of fuel economy in recovering from sulfur poisoning at the occurrence of a trouble in an exhaust emission control catalyst on the upstream side of an internal combustion engine exhaust system. SOLUTION: If at least any one of the conditions that an upstream side exhaust temperature T exin of the exhaust emission control catalyst on the downstream side is T exin >T sin (S206) and that a downstream side exhaust temperature T exout of the exhaust emission control catalyst in the downstream side is T exout >T sout (S208) is satisfied when an air/fuel ratio is AF≤AFr (Yes in S204), calculation for recovering from S poisoning is executed (S210). Thus, a recovering degree from the S poisoning can be obtained with high accuracy. Since temperature raising treatment for a catalyst floor temperature and air/fuel ratio reducing treatment can be executed appropriately by the S poisoning recovering control, the heat deterioration acceleration of the exhaust emission control catalyst on the downstream side and the worsening of fuel economy can be prevented even if a problem such as deterioration or clogging arises in a NOx storage/reducing catalyst on the upstream side. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：为了防止排气排放控制催化剂在下游侧的热劣化加速，以及在发生上游侧的废气排放控制催化剂的问题时从硫中毒中回收燃料经济性 内燃机排气系统。 解决方案：如果下游侧排气排放控制催化剂的上游侧排气温度T exin 的条件中的至少任一个为T exin > T ＆lt; SB＆gt; sin＆lt; / SB＆gt;（S206），并且下游侧的废气排放控制催化剂的下游侧排气温度T exout 为T exout > T < 当空燃比为AF≤AFr（S204中为“是”）时，满足SB> sout （S208），执行从S中毒恢复的计算（S210）。 因此，可以高精度地获得S中毒的恢复程度。 由于可以通过S中毒回收控制适当地进行催化剂底板温度和空燃比降低处理的升温处理，可以防止排气排放控制催化剂在下游侧的热劣化加速和燃料经济性的恶化 即使在上游侧的NOx吸留还原催化剂中出现劣化或堵塞等问题。 版权所有（C）2005，JPO＆NCIPI

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