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1. 发明专利

JP2011094570A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2011094570A
公开(公告)日：2011-05-12
申请号：JP2009251031
申请日：2009-10-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI
IPC分类号： F01N3/02 , F02D9/04
摘要： PROBLEM TO BE SOLVED: To suppress erroneous diagnosis of a clogging abnormality of a filter. SOLUTION: An exhaust passage 14 of an internal combustion engine 10 is provided with a filter 22 collecting PM and an exhaust throttle valve 18 arranged in this order from upstream of the exhaust passage 14. A pressure sensor 33 detecting exhaust pressure Pex is disposed upstream of the filter 22 of the exhaust passage 14. An electronic control device 40 controls open/close of the exhaust throttle valve 18, and diagnoses the clogging abnormality of the filter 22 based on the exhaust pressure Pex detected by the pressure sensor 33. Based on an engine operating condition, a determination value Pexth, which is exhaust pressure upstream of the exhaust throttle valve 18 of the exhaust passage 14, larger than pressure of the fully opened valve 18, and smaller than pressure of the fully closed valve 18, is set. The abnormality diagnosis is prohibited when it is determined that the exhaust pressure Pex is larger than the determination value Pexth, before execution of abnormality diagnosis of the filter 22. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：抑制过滤器堵塞异常的错误诊断。解决方案：内燃机10的排气通道14设置有收集PM的过滤器22和从排气通道14的上游依次排列的排气节流阀18.检测排气压力Pex的压力传感器33是设置在排气通道14的过滤器22的上游。电子控制装置40控制排气节流阀18的打开/关闭，并且基于由压力传感器33检测的排气压力Pex来诊断过滤器22的堵塞异常。基于发动机工作状态，作为排气通路14的排气节流阀18上游排气压力的判定值Pexth大于全开阀18的压力，小于全闭阀18的压力，被设置。在执行过滤器22的异常诊断之前，当确定排气压力Pex大于确定值Pexth时，禁止异常诊断。（C）2011，JPO和INPIT

2. 发明专利

JP2007321614A Exhaust emission control device of internal combustion engine 审中-公开
标题翻译：内燃机排气控制装置
公开(公告)号：JP2007321614A
公开(公告)日：2007-12-13
申请号：JP2006151343
申请日：2006-05-31
申请人： 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
发明人： TAWARA ATSUSHI , YAMAMOTO YUKIHISA
IPC分类号： F01N3/36 , B01D53/94 , F02D45/00
CPC分类号： F02D41/0275 , F01N3/025
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine capable of adding a proper quantity of unburnt fuel component to a catalyst in fuel adding control. SOLUTION: An electronic control device estimates the catalyst bed temperature from a detecting value of the exhaust temperature (Step S210), and calculates the switching air volume for determining the necessity of correcting an adding quantity (Step S220). A determination is made on whether or not the detected actual air volume of suction air is larger than the switching air volume (Step S240). When the actual air volume exceeds the switching air volume, since a determination can be made that an operation state of the internal combustion engine is put in a white smoke easily generating state, a correction is made for reducing the adding quantity of fuel added from an adding valve (Step S260). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在燃料添加控制中向催化剂添加适量的未燃燃料成分的内燃机的废气排放控制装置。解决方案：电子控制装置从排气温度的检测值估计催化剂床温度（步骤S210），并计算用于确定校正添加量的必要性的开关风量（步骤S220）。确定所检测到的吸入空气的实际空气量是否大于开关风量（步骤S240）。当实际风量超过切换风量时，由于能够确定内燃机的运转状态为白烟容易产生状态，因此进行校正，以减少从燃料添加量加入阀（步骤S260）。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007127022A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2007127022A
公开(公告)日：2007-05-24
申请号：JP2005319498
申请日：2005-11-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MATSUNO SHIGEHIRO , TAWARA ATSUSHI
IPC分类号： F01N3/20 , B01D53/94 , F01N3/08 , F01N3/36
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： PROBLEM TO BE SOLVED: To suppress the occurrence of white smoke in exhaust gases by the excessive supply of unburned fuel components into an NOx catalyst when sulfur (S) poisoning recovery control is performed. SOLUTION: In the adding period A of the sulfur (S) poisoning recovery control, an adding time a for adding a fuel to an exhaust system is limited to a guard value G or less. Therefore, the added amount of fuel per unit time during the adding period A can be limited to an allowable upper limit value Q1 max or below, and it can be suppressed that the unburned fuel components are not purified by the NOx catalyst during the adding period A. After the adding time A is started, when the overall amount [(GF+Q1)×t] of the unburned fuel components fed to the NOx catalyst reaches an allowable upper limit value UL, a concentrated intermittent fuel addition in the adding period A is stopped and the period A is forcibly moved to a rest period B. Consequently, it can be suppressed that the overall amount [(GF+Q1)×t] of the unburned fuel components fed to the NOx catalyst is increased such that the unburned fuel components cannot be purified by the NOx catalyst during the adding period A. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了抑制当执行硫（S）中毒恢复控制时，通过过量地将未燃烧的燃料成分供应到NOx催化剂中来抑制废气中的白烟的发生。解决方案：在硫（S）中毒恢复控制的添加周期A中，将用于向排气系统添加燃料的添加时间a限制在保护值G以下。因此，在添加期间A中，每单位时间的燃料添加量可以限制在允许上限值Q1 max以下，并且可以抑制未加燃料成分在添加期间不被NOx催化剂净化 A.开始添加时间A后，当供给到NOx催化剂的未燃燃料成分的总量[（GF + Q1）×t]达到允许上限值UL时，加法时间内的浓缩间歇燃料添加 A停止，时段A被强制地移动到休止期B.因此，可以抑制供给到NOx催化剂的未燃燃料成分的总量[（GF + Q1）×t]增大，未加燃料组分在添加期间A期间不能被NOx催化剂净化。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007064183A Exhaust emission control device 有权
标题翻译：排气排放控制装置
公开(公告)号：JP2007064183A
公开(公告)日：2007-03-15
申请号：JP2005255138
申请日：2005-09-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI , KOBAYASHI MASAAKI
IPC分类号： F01N3/36 , B01D53/86 , B01D53/94 , F01N3/02 , F01N3/20 , F02D45/00
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： PROBLEM TO BE SOLVED: To restrain the clogging of a fuel adding valve for adding fuel to an exhaust passage even if the exhaust temperature of an internal combustion engine changes by an environmental change such as an atmospheric pressure change. SOLUTION: A correction is made so as to shorten an adding interval of the fuel (Step ST1 to ST4) as a variation in its exhaust temperature becomes large on the basis of a variation in the present exhaust temperature to the basis exhaust temperature when setting a basic adding interval. When the exhaust temperature rises in highland by such a correction of the adding interval, the adding interval of the fuel is shortened and corrected in response to its exhaust temperature rise, and since an adding quantity of the fuel is increasingly corrected, a temperature rise in a tip part of the fuel adding valve can be restrained, to thereby avoid the problem of blocking up a nozzle port of the fuel adding valve by a deposit. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使内燃机的排气温度变化等大气压变化的环境变化，也可以抑制用于将燃料添加到排气通道的燃料添加阀的堵塞。解决方案：基于当前排气温度与基本排气温度的变化，进行校正以缩短燃料的添加间隔（步骤ST1至ST4），因为排气温度的变化变大设置基本的添加间隔时。当排气温度通过这样的加法间隔的校正而升高时，由于排气温度升高，燃料的添加间隔被缩短和校正，并且由于燃料的添加量越来越多地被校正，因此，可以抑制燃料添加阀的前端部，从而避免了通过沉积物堵塞燃料添加阀的喷嘴端口的问题。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006291830A Turbocharger control device 有权
标题翻译：涡轮增压器控制装置
公开(公告)号：JP2006291830A
公开(公告)日：2006-10-26
申请号：JP2005112857
申请日：2005-04-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI , YASUZAKI ICHIJI
IPC分类号： F02B37/24 , F02D23/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To provide a turbocharger control device for properly controlling the drive of a variable nozzle mechanism for a turbocharger even when a combustion mode in an internal combustion engine is changed over. SOLUTION: In the engine 1, the combustion mode is changed over to maintain the function of an exhaust emission control device 30. The control device 25 controls the drive of a variable nozzle mechanism 71 so that the charging pressure of the turbocharger 60 having the variable nozzle mechanism 71 for changing the exhaust flow path area of an exhaust flow-in part gets to target charging pressure. The control device 25 sets the basic drive amount of the variable nozzle mechanism 71 in accordance with the target charging pressure and the corrects the basic drive amount with a feedback correction amount calculated in accordance with a deviation between actual charging pressure and the target charging pressure. It also changes the feedback correction amount along with the change-over of the combustion mode. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使当内燃机的燃烧模式被切换时，也可以提供一种用于适当地控制用于涡轮增压器的可变喷嘴机构的驱动的涡轮增压器控制装置。解决方案：在发动机1中，改变燃烧模式以维持排气控制装置30的功能。控制装置25控制可变喷嘴机构71的驱动，使得涡轮增压器60的充气压力具有用于改变排气流入部的排气流路面积的可变喷嘴机构71成为目标充气压力。控制装置25根据目标充气压力设定可变喷嘴机构71的基本驱动量，并且根据实际充气压力和目标充气压力之间的偏差计算出的反馈校正量来校正基本驱动量。它也随着燃烧模式的转换而改变反馈校正量。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006291826A Controller of internal combustion engine 有权
标题翻译：内燃机控制器
公开(公告)号：JP2006291826A
公开(公告)日：2006-10-26
申请号：JP2005112852
申请日：2005-04-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI
IPC分类号： F02D41/16 , F01N3/02 , F01N3/24 , F02D29/04 , F02D29/06 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a controller of an internal combustion engine capable of suppressing the deterioration of fuel economy due to the continued control of the increasing temperature of a catalyst over a long period by rapidly completing the regeneration of the filter even under such a condition that idle operation is frequently performed under the control of the increasing temperature of the catalyst for regenerating the filter. SOLUTION: When the idle operation is frequently performed under the control of the increasing temperature of the catalyst for regenerating the filter and a catalyst floor temperature becomes difficult to rise, the burning of PM deposited in an exhaust system is not advanced and it takes much time for the filter to be regenerated and the fuel economy of the internal combustion engine 10 may be deteriorated. However, when the deposited amount of PM is determined to be increased during the control of the increasing temperature of the catalyst, an exhaust temperature raising control is performed for raising exhaust gas temperatures during the idle operation of the internal combustion engine 10. By the execution of that control. the catalyst floor temperature can be held at a high value even under the idle operation, and a time for completing the regeneration of the filter is reduced, and further the deterioration of the fuel economy of the internal combustion engine 10 can be suppressed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的控制器，其能够通过快速完成过滤器的再生而连续控制催化剂在长时间内的温度的持续控制，从而抑制燃料经济性的劣化在用于再生过滤器的催化剂的升高温度的控制下经常进行空转操作的条件下进行。解决方案：当在用于再生过滤器的催化剂的升高温度的控制下频繁地执行怠速操作并且催化剂底板温度变得难以上升时，沉积在排气系统中的PM的燃烧不会提前，需要花费大量时间来使过滤器再生，并且内燃机10的燃料经济性可能劣化。然而，当在催化剂的升高温度的控制期间确定PM的沉积量增加时，在内燃机10的怠速运转期间执行用于提高排气温度的排气升温控制。通过执行的控制。即使在怠速运转时，也能够将催化剂底板温度保持在高的值，从而能够降低过滤器再生的时间，进而能够抑制内燃机10的燃料经济性的劣化。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006291825A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2006291825A
公开(公告)日：2006-10-26
申请号：JP2005112851
申请日：2005-04-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI , SUGIYAMA TATSUMASA
IPC分类号： F01N3/02 , B01D46/42 , B01D53/94 , F01N3/023 , F01N3/025 , F01N3/029 , F01N3/035 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/24 , F01N3/28 , F01N3/36 , F01N13/02
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： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine capable of suppressing the lowering of particulate matter purification capability at the upstream part of an exhaust filter when the catalytic function of a catalyst device is deteriorated. SOLUTION: This exhaust emission control device comprises a fuel addition valve 71, an NOx catalytic converter 72, and a catalyst carrying type PM filter 73. The PM arrested by the filter 73 is purified by increasing the temperature of the catalyst floor of the catalyst carrying type PM filter 73 to a target catalyst floor temperature. When the NOx catalytic converter 72 is deteriorated, the target catalyst floor temperature of the catalyst carrying type PM filter 73 is changed to a value larger than a target catalyst floor temperature when the NOx catalytic converter 72 is normal. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够抑制催化剂装置的催化功能恶化时排气过滤器的上游部分的颗粒物净化能力降低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包括燃料添加阀71，NOx催化转化器72和催化剂负载型PM过滤器73.由过滤器73阻塞的PM通过增加催化剂底板的温度而被净化催化剂载体型PM过滤器73达到目标催化剂底板温度。当NOx催化转化器72恶化时，催化剂负载型PM过滤器73的目标催化剂底面温度被变化为当NOx催化转化器72正常时大于目标催化剂底板温度的值。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2005090253A Exhaust emission control system for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制系统
公开(公告)号：JP2005090253A
公开(公告)日：2005-04-07
申请号：JP2003321408
申请日：2003-09-12
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KOBAYASHI NOBUKI , SUGIYAMA TATSUMASA , TAWARA ATSUSHI
IPC分类号： F01N3/08 , B01D53/94 , F01N3/00 , F01N3/20 , F01N3/28 , F01N3/36 , F02D41/02
CPC分类号： F02D41/028 , F02D2200/0611 , F02D2200/0818
摘要： PROBLEM TO BE SOLVED: To prevent a large amount of HC from being released into the air, when SOx accumulated in a NOx catalyst is separated by SOx poisoning recovery control. SOLUTION: The exhaust emission control system for an internal combustion engine has the NOx catalyst occluding and reducing NOx in exhaust. When the SOx accumulated in the NOx catalyst is separated, concentration of sulfur in fuel is detected, an amount of the SOx accumulated in the NOx catalyst in addition to the concentration of the sulfur of the fuel is estimated, and an air-fuel ratio of the exhaust flowing into the NOx catalyst is set to an air-fuel ratio on a richer side according to reduction in estimated SOx accumulation amount. Accordingly, the HC concentration of exhaust flowing from the NOx catalyst becomes within an allowable HC concentration. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止大量HC被释放到空气中，当通过SOx中毒恢复控制分离在NOx催化剂中积聚的SO x时。解决方案：用于内燃机的废气排放控制系统具有NOx催化剂吸留并减少排气中的NOx。当NOx催化剂中累积的SO x分离时，检测到燃料中的硫浓度，除了燃料的硫浓度之外，还可以估计NOx催化剂中累积的SO x的量，空燃比根据估计的SO x累积量的减少，流入NOx催化剂的排气被设定为更富裕侧的空燃比。因此，从NOx催化剂流出的排气的HC浓度成为允许的HC浓度。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2009270511A Device and method for diagnosing abnormality of fuel system 有权
标题翻译：用于诊断燃油系统异常的装置和方法
公开(公告)号：JP2009270511A
公开(公告)日：2009-11-19
申请号：JP2008122421
申请日：2008-05-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI
IPC分类号： F02D41/22 , F02D41/04 , F02D45/00 , F02M55/02
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To reduce adverse effect caused by drive of a pressure reducing valve for diagnosing whether or not the pressure reducing valve is abnormal or not. SOLUTION: An ECU (electronic control unit) 200 includes a control part 300, a determination part 302 and a limitation part 304. The control part 300 controls a pressure reducing valve so as to drive the same by a predetermined diagnostic mode when diagnosing whether the pressure reducing valve for reducing the pressure of a fuel in a common rail is abnormal or normal. The determination part 302 determines whether or not at least one conditions related to the pressure rise of the fuel in the common rail, a condition related to the pressure decline of the fuel in the common rail, and a condition related to the drive of the pressure reducing valve is satisfied. The limitation part 304 restricts the control for driving the pressure reducing valve if at least either the condition related to the pressure rise of the fuel in the common rail, the condition related to the pressure decline of the fuel in the common rail, or the condition related to the drive of the pressure reducing valve is satisfied. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：减少用于诊断减压阀是否异常的减压阀的驱动引起的不利影响。解决方案：ECU（电子控制单元）200包括控制部分300，确定部分302和限制部分304.控制部分300控制减压阀，以便通过预定的诊断模式来驱动它诊断用于降低共轨中的燃料的压力的减压阀是否异常或正常。确定部302判定与共轨中的燃料的压力上升有关的至少一个条件，与共轨中的燃料的压力下降有关的条件以及与压力的驱动有关的条件减压阀满足。限制部304限制用于驱动减压阀的控制，只要与共轨中的燃料的压力上升有关的条件，与共轨中的燃料的压力下降有关的条件，与减压阀的驱动有关。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009013842A Exhaust emission control device for engine 有权
标题翻译：用于发动机的排气排放控制装置
公开(公告)号：JP2009013842A
公开(公告)日：2009-01-22
申请号：JP2007175378
申请日：2007-07-03
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAWARA ATSUSHI , HIRAI TARO
IPC分类号： F01N3/08 , B01D53/86 , B01D53/94 , F01N3/20 , F01N3/36 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an engine capable of suppressing unburned fuel components from passing through a catalyst in an unreacted state, becoming white smoke, and being discharged into the atmosphere. SOLUTION: An electronic control device 50 executes fuel adding treatment for supplying unburned fuel components to a NOx occlusion reduction catalyst carried by a PM filter 42 provided in an exhaust passage 30. The electronic control device 50 sets a reference exhaust flow rate based on a catalyst bed temperature of the PM filter 42 estimated based on an upstream side exhaust temperature and a downstream side exhaust temperature detected by an upstream side exhaust temperature sensor 55 provided on the upstream side of the PM filter 42 and a downstream side exhaust temperature sensor 56 provided at the downstream side of the PM filter 42, and when the exhaust flow rate is the reference exhaust flow rate or more, inhibits the fuel adding treatment. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种能够抑制未燃燃料成分在未反应状态下通过催化剂的发动机的废气排放控制装置，成为白烟，并排出到大气中。解决方案：电子控制装置50执行用于将未燃燃料成分供给到由设置在排气通道30中的PM过滤器42承载的NOx吸留还原催化剂的燃料添加处理。电子控制装置50基于排气流量基于由设置在PM过滤器42的上游侧的上游侧排气温度传感器55检测出的上游侧排气温度和下游侧废气温度推定的PM过滤器42的催化剂床温度和下游侧排气温度传感器 56设置在PM过滤器42的下游侧，当排气流量为基准排气流量以上时，抑制燃料添加处理。版权所有（C）2009，JPO＆INPIT

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