公开(公告)号：JP2014142199A

公开(公告)日：2014-08-07

申请号：JP2013009255

申请日：2013-01-22

申请人： Nippon Soken Inc ,  株式会社日本自動車部品総合研究所 ,  Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： MIZUTANI KEIGO ,  TERANISHI SHINYA ,  SHIMOKAWA HIRONOBU ,  AOKI KEIICHIRO ,  WAKAO KAZUHIRO

IPC分类号： G01N27/416 ,  F01N3/00

摘要： PROBLEM TO BE SOLVED: To detect SOx contained in an exhaust gas.SOLUTION: An exhaust-component gas detector comprises an oxygen pump cell and a sensor cell. The oxygen pump cell has a first solid electrolyte forming a part of an exterior wall of a space into which an exhaust gas is introduced and a pair of electrodes that hold the first solid electrolyte therebetween and are disposed in such a manner that one of the electrodes contacts the space. The sensor cell has a second solid electrolyte forming a part of an exterior wall of the space, a pair of electrodes that hold the second solid electrolyte therebetween and are disposed in such a manner that one of the electrodes contacts the space, and a SOx absorbing and storing section provided on the electrode contacting the space. A voltage to regulate the concentration of oxygen in the space is applied to the oxygen pump cell. A voltage to decompose SOx is applied to the sensor cell. When current is applied to the sensor cell after a predetermined period of time when application of current is stopped, the amount of SOx or the concentration of SOx is estimated depending on an output from the sensor cell.

摘要翻译： 要解决的问题：检测废气中所含的SO x。解决方案：排气组分气体检测器包括氧泵单元和传感器单元。 氧泵单元具有第一固体电解质，其形成引入废气的空间的外壁的一部分，以及一对电极，其将第一固体电解质保持在其间并且以这样的方式设置，使得电极中的一个 联系空间。 所述传感器单元具有形成所述空间的外壁的一部分的第二固体电解质，一对电极，其将所述第二固体电解质保持在其间并且以使得所述电极中的一个接触所述空间并且吸收SO x的方式设置 以及设置在与该空间接触的电极上的存储部。 将调节该空间中的氧浓度的电压施加到氧气泵电池。 将分解SOx的电压施加到传感器单元。 当在施加电流停止的预定时间段之后将电流施加到传感器单元时，根据传感器单元的输出来估计SO x的量或SO x的浓度。

公开(公告)号：JP2014015878A

公开(公告)日：2014-01-30

申请号：JP2012152937

申请日：2012-07-06

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： WAKAO KAZUHIRO ,  KATO YOSHIE

IPC分类号： F02D41/34 ,  F02D19/08 ,  F02D41/02 ,  F02D45/00

CPC分类号： F02D41/3094 ,  F02D19/084 ,  F02D19/087 ,  F02D41/1454 ,  F02D2200/0611 ,  Y02T10/36

摘要： PROBLEM TO BE SOLVED: To early eliminate a situation that alcohol concentration of injected fuel from a port injection valve and alcohol concentration of injected fuel from a cylinder injection valve are different from each other, found when alcohol concentration of a fuel is changed by oil supply, in an internal combustion engine in which cylinder direct injection and port injection are combined.SOLUTION: The fuel is injected to both of the cylinder injection valve and the port injection valve with a prescribed injection ratio, when the change of alcohol concentration of the fuel stored in a fuel tank is detected. An injection rate of the port injection valve is increased, when a measured value of an air-fuel ratio of a cylinder or a group of cylinders in which cylinder order in distributing the fuel to the cylinder injection valve is relatively higher than cylinder order in distributing the fuel to the port injection valve, changes first. Conversely, the injection rate of the cylinder injection valve is increased when a measured value of an exhaust air-fuel rate of a cylinder or a group of cylinders in which the cylinder order in distributing the fuel to the port injection valve is high, changes first.

摘要翻译： 要解决的问题：为了尽早消除来自端口喷射阀的喷射燃料的酒精浓度和来自气缸喷射阀的喷射燃料的酒精浓度彼此不同的情况，当燃料的酒精浓度由供油变化时发现 在内燃机中，其中气缸直接喷射和端口喷射被组合。解决方案：当燃料的酒精浓度变化时，将燃料以规定的喷射比率喷射到气缸喷射阀和喷射阀两者中 存储在燃料箱中。 当分配燃料到气缸喷射阀的气缸顺序相对高于分配气缸顺序时的气缸或一组气缸的空燃比的测量值，喷射阀的喷射速率增加 燃油到港口喷油阀，先改变。 相反，当将燃料分配到端口喷射阀的气缸顺序高的气缸或一组气缸的排气空燃比的测量值高时，气缸喷射阀的喷射速率增加 。

公开(公告)号：JP2012225194A

公开(公告)日：2012-11-15

申请号：JP2011091321

申请日：2011-04-15

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： SASAI YOSHIE ,  WAKAO KAZUHIRO

IPC分类号： F02D19/08 ,  F02D41/02 ,  F02D41/04

CPC分类号： Y02T10/123

摘要： PROBLEM TO BE SOLVED: To provide a fuel feed system capable of accurately estimating the property of fuel, which is jetted from an injector, by a fuel property sensor disposed in a return pipe.SOLUTION: The fuel property sensor is disposed in the return pipe 14. A position of the disposition of the fuel property sensor is set as a position in which time until the fuel flowing into the return pipe 14 from a pressure regulator 12 at an arbitrary point in time reaches the fuel property sensor 16 is shorter than time until the fuel flowing into a fuel pipe 6 from the pressure regulator 12 at the same point in time reaches a delivery pipe 8.

摘要翻译： 要解决的问题：提供一种能够通过设置在返回管中的燃料特性传感器来精确地估计从喷射器喷射的燃料的性质的燃料供给系统。 燃料特性传感器设置在返回管14中。燃料特性传感器的配置位置被设定为直到从压力调节器12流入回流管14的燃料的时间 任何时间到达燃料特性传感器16的时间比在同一时间点从压力调节器12流入燃料管6的燃料到达输送管8的时间短。（C）2013 ，JPO＆INPIT

公开(公告)号：JP2012225191A

公开(公告)日：2012-11-15

申请号：JP2011091279

申请日：2011-04-15

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： SASAI YOSHIE ,  WAKAO KAZUHIRO

IPC分类号： F02D41/22 ,  F02D19/08 ,  F02D35/00 ,  F02D41/14 ,  F02D45/00

CPC分类号： Y02T10/40

摘要： PROBLEM TO BE SOLVED: To provide a fault detection device of an internal combustion engine, which accurately determines the presence or absence of a fault in an injector.SOLUTION: An ethanol concentration sensor 32, which is arranged midway through a fuel feed passage 28 for feeding the injector 22 with fuel in a fuel tank 26 subject to the supply of ethanol, gasoline or mixed fuel made from the ethanol and the gasoline and which detects an ethanol concentration, is provided. An air-fuel ratio sensor 38, which is arranged midway through an exhaust passage 16 and which detects an air-fuel ratio of exhaust gas, is provided. A fuel injection amount calculation means calculates the injection amount of fuel injected from the injector on the basis of fuel injection time of the injector 22. The fault in the injector 22 is detected on the basis of the result of comparison between a reference fuel amount Qs and an accumulated fuel injection amount Q from the time when a change in the ethanol concentration is detected on the basis of the output of the ethanol concentration sensor 32, to the time when a change in the air-fuel ratio, caused by the change of the ethanol concentration, is detected on the basis of the output of the air-fuel ratio sensor 38.

摘要翻译： 要解决的问题：提供内燃机的故障检测装置，其精确地确定喷射器中是否存在故障。 解决方案：乙醇浓度传感器32，其布置在燃料供给通道28的中途，用于在燃料箱26中供应燃料以供应乙醇，汽油或由乙醇制成的混合燃料 汽油，其检测乙醇浓度。 提供了布置在排气通道16的中途并且检测排气的空燃比的空燃比传感器38。 燃料喷射量计算装置基于喷射器22的燃料喷射时间计算从喷射器喷射的燃料的喷射量。基于参考燃料量Qs 从基于乙醇浓度传感器32的输出检测到乙醇浓度的变化时的累积燃料喷射量Q到由空气燃料比变化引起的空燃比的变化的时刻 基于空燃比传感器38的输出检测乙醇浓度。版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012140879A

公开(公告)日：2012-07-26

申请号：JP2010292978

申请日：2010-12-28

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： WAKAO KAZUHIRO ,  SASAI YOSHIE

IPC分类号： F02D45/00 ,  B60K15/077 ,  G01F23/26 ,  G01F25/00

摘要： PROBLEM TO BE SOLVED: To properly and easily diagnose rationality of a fuel remaining amount sensor.SOLUTION: A liquid surface detection sensor 18 is provided inside a fuel tank 2 to be exposed from a liquid surface when the fuel remaining amount decreases. In the liquid surface detection sensor 18, a sensor output value varies depending on whether a measuring part is located above the liquid surface of fuel or is immersed in the fuel like an electrostatic capacity sensor. Moreover, the liquid surface detection sensor determines whether the rationality of the fuel remaining amount sensor 16 is maintained by verifying whether the fuel residual amount that is calculated based on a sensor output value of the fuel remaining amount sensor 16 and a sensor output value of the liquid surface detection sensor 18 are not inconsistent.

摘要翻译： 要解决的问题：适当且容易地诊断燃料剩余量传感器的合理性。 解决方案：当燃料剩余量减少时，液面检测传感器18设置在燃料箱2内部以从液面露出。 在液面检测传感器18中，传感器输出值根据测量部位是否位于燃料的液面以上，或像静电容量传感器那样浸入燃料中而变化。 此外，液面检测传感器通过验证基于燃料剩余量传感器16的传感器输出值计算出的燃料剩余量是否维持燃料剩余量传感器16的合理性，以及传感器输出值 液面检测传感器18不一致。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010190203A

公开(公告)日：2010-09-02

申请号：JP2009038532

申请日：2009-02-20

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： SANO KEISUKE ,  WAKAO KAZUHIRO

IPC分类号： F02D45/00 ,  F01N3/08 ,  F01N3/18

摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine, capable of detecting the abnormality of air fuel ratio sensors without increasing emission. SOLUTION: The exhaust emission control device for the internal combustion engine 10 includes an adsorption catalyst 40 provided in the exhaust passage 20 of the internal combustion engine 10 and O 2 sensors 60A, 60B each provided at least downstream of the adsorption catalyst 40 in the exhaust passage 20 and serving as the air fuel ratio sensor having a built-in heater. Before start of the internal combustion engine 10, the heaters are operated to activate the O 2 sensors 60A, 60B, and based on the detection signals of the O 2 sensors 60A, 60B with respect to the exhaust gas at start of the internal combustion engine 10, the abnormality of the O 2 sensors 60A, 60B is detected. COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 解决的问题：提供一种能够检测空燃比传感器的异常而不增加排放的内燃机的废气排放控制装置。 解决方案：用于内燃机10的废气排放控制装置包括设置在内燃机10的排气通道20中的吸附催化剂40和分别设置在内燃机10的排气通道20和第二传感器60A， 最少在排气通道20中的吸附催化剂40的下游，并且用作具有内置加热器的空燃比传感器。 在启动内燃机10之前，操作加热器以激活O 2 SBB传感器60A，60B，并且基于O 2 传感器60A， 60B相对于内燃机10起动时的废气，检测出O 2 传感器60A，60B的异常。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010168986A

公开(公告)日：2010-08-05

申请号：JP2009011865

申请日：2009-01-22

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： WAKAO KAZUHIRO ,  ITO TAKAAKI ,  SANO KEISUKE ,  YODA KOICHI

IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28

摘要： PROBLEM TO BE SOLVED: To prevent predetermined components adsorbed onto an adsorbent from being unintendedly desorbed during the period between the completion of adsorbing operation and the start of desorbing operation in an exhaust emission control device for an internal combustion engine. SOLUTION: This exhaust emission control device of an internal combustion engine includes an adsorbent 24 in a bypass passage 20 which bypasses part of a main exhaust passage 14. The exhaust emission control device further includes a changeover valve 22 disposed at an upper stream side connection part 20a for changing over an exhaust gas flow passage configuration between a first flow passage configuration for closing the bypass passage 20 to prevent the exhaust gas from being introduced into the bypass passage 20 and a second flow passage configuration for opening the bypass passage 20 to introduce the exhaust gas into the bypass passage 20. A reverse-flow prevention valve 26 is provided to the bypass valve 20 at a portion between a downstream side connection part 20b and the adsorbent 24. During the period between the completion of adsorbing operation and the start of desorbing operation, the changeover valve 22 is controlled in such a manner that the first flow passage configuration is selected, and the reverse-flow prevention valve 26 is controlled in such a manner that the bypass passage 20 is closed. COPYRIGHT: (C)2010,JPO&INPIT

摘要翻译： 要解决的问题：为了防止在吸附操作完成和内燃机的废气排放控制装置中的解吸操作开始之间的期间吸附在吸附剂上的预定组分被不期望地解吸。 解决方案：内燃机的废气排放控制装置在旁通通路20中具有旁通主排气通路14的一部分的吸附剂24.废气排放控制装置还具有设置在上流的切换阀22 侧连接部分20a，用于在用于关闭旁通通道20的第一流动通道构造之间切换废气流动通道构造，以防止废气被引入旁通通道20;以及第二流动通道构造，用于打开旁路通道20 将排气引入旁路通路20.在下游侧连接部20b与吸附剂24之间的部分，向旁通阀20设置防逆流阀26.在完成吸附操作和 开始解吸操作，转换阀22被控制成使得第一流动通道配置 并且逆流防止阀26以旁路通路20关闭的方式进行控制。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009167852A

公开(公告)日：2009-07-30

申请号：JP2008005196

申请日：2008-01-15

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： WAKAO KAZUHIRO ,  ITO TAKAAKI ,  SANO KEISUKE ,  YODA KOICHI

IPC分类号： F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F02D19/02 ,  F02D41/04

CPC分类号： Y02T10/32 ,  Y02T10/47

摘要： PROBLEM TO BE SOLVED: To properly control exhaust emission by restraining the emission of NOx when starting a hydrogen engine in a cold state. SOLUTION: In this hydrogen engine using hydrogen as fuel, while arranging a water adsorbent 24 in an exhaust pipe 14, a bypass pipe 26 is formed on the downstream side of the water adsorbent 24, and an NOx adsorbent 28 is arranged in the bypass pipe 26. A switching valve 30 for switching a flow passage between the bypass pipe 26 and the exhaust pipe 14 is arranged in a branch 14A of the bypass pipe 26. When starring the engine in the cold state, the switching valve 30 is controlled so that exhaust gas flows in the bypass pipe 26. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：通过在冷态启动氢气发动机时抑制NOx的排放来适当地控制废气排放。 解决方案：在使用氢作为燃料的氢发动机中，在排水管14中设置水吸附剂24的同时，在水吸附剂24的下游侧形成旁通管26，并且将NOx吸附剂28配置在 旁通管26.用于切换旁通管26和排气管14之间的流路的切换阀30设置在旁通管26的分支14A中。当将发动机在冷态中主动时，切换阀30为 控制使废气在旁通管26中流动。版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009041527A

公开(公告)日：2009-02-26

申请号：JP2007209896

申请日：2007-08-10

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： YODA KOICHI ,  ITO TAKAAKI ,  SANO KEISUKE ,  WAKAO KAZUHIRO

IPC分类号： F01N3/18 ,  B01D53/94 ,  F01N3/08 ,  F01N3/24

摘要： PROBLEM TO BE SOLVED: To improve adsorbing performance and purge efficiency by keeping an adsorbent at a proper temperature according to the operating conditions. SOLUTION: A main passage 18, an adsorbing passage 20, and a bypass passage 22 are connected to an exhaust passage 14. A heating passage 36 in which the adsorbent 34 is disposed is formed in the main passage 18. In an adsorbing mode, the exhaust gas is circulated to the adsorbing passage 20 for adsorbing control. In a heating purge mode, purge control is performed by a purge passage 40 while heating the adsorbent 34 by circulating the exhaust gas into the heating passage 36. In a heat-dissipating purge mode, the exhaust gas is circulated into the bypass passage 22 to dissipate the heat of the adsorbent 34, and the purge control is performed in this state. Consequently, the temperature of the adsorbent 34 can be suppressed during the adsorbing control. Also, the temperature of the adsorbent 34 can be held in a proper temperature range during the purge control. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：通过根据操作条件将吸附剂保持在适当的温度来提高吸附性能和吹扫效率。 解决方案：主通道18，吸附通道20和旁通通道22连接到排气通道14.在主通道18中形成有设置有吸附剂34的加热通道36.在吸附 模式，废气循环到吸附通道20以进行吸附控制。 在加热吹扫模式中，通过吹扫通道40进行吹扫控制，同时通过将排气循环到加热通道36中来加热吸附剂34.在散热吹扫模式中，排气循环到旁通通道22中 消散吸附剂34的热量，并且在该状态下进行清洗控制。 因此，在吸附控制中可以抑制吸附剂34的温度。 此外，在清洗控制期间，吸附剂34的温度可以保持在适当的温度范围内。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008309013A

公开(公告)日：2008-12-25

申请号：JP2007155641

申请日：2007-06-12

申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

发明人： WAKAO KAZUHIRO ,  ITO TAKAAKI ,  SANO KEISUKE ,  YODA KOICHI

IPC分类号： F01N3/20 ,  B01D53/94 ,  F01N3/22 ,  F01N3/24 ,  F01N3/32 ,  F02D41/04 ,  F02D45/00

CPC分类号： Y02T10/47

摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control system of internal combustion engines which can effectively treat and reduce an oxidized NOx adsorbent in the exhaust emission control system that has a NOx adsorbent therein. SOLUTION: An exhaust emission control system comprises: an emission passage 14 wherein an emission from an internal combustion engine 10 flows; a bypass 20 diverged from the emission passage 14 at the upstream section connecting with the emission passage 14, the bypass 20 converging again with the emission passage 14 at the downstream connecting section below the upstream connecting section; a switching valve 22 switching over an emission flow destination between the emission passage 14 and the bypass 20; a prestage catalyst 16 disposed at the upstream of the upstream connecting section in the emission passage 14; and an NOx adsorbent 24 arranged in the bypass 20 and having a function to adsorb NOx included in the emission, wherein an exhaust air-oil ratio in the internal combustion engine 10 is controlled better than a theoretical air-oil ratio in terms of fuel enrichment when an adsorption capacity degradation due to oxidization of the NOx adsorbent 24 is identified. COPYRIGHT: (C)2009,JPO&INPIT

摘要翻译： 要解决的问题：提供一种可以有效地处理和还原在其中具有NOx吸附剂的废气排放控制系统中的氧化的NOx吸附剂的内燃机的废气排放控制系统。 解决方案：排气排放控制系统包括：排气通道14，其中来自内燃机10的排放物流动; 旁路20在与排出通道14连接的上游部分处从排放通道14分叉，旁路20再次与排放通道14会聚在上游连接部分下游的下游连接部分; 在发射通道14和旁路20之间切换发射流的目的地的切换阀22; 布置在排放通道14中的上游连接部分的上游的预置催化剂16; 以及设置在旁路20中并且具有吸附排放物中所含的NOx的功能的NOx吸附剂24，其中在燃料浓缩方面控制内燃机10中的排气空气 - 油比优于理论空气 - 油比 当识别出由于NOx吸附剂24的氧化引起的吸附容量降低时。 版权所有（C）2009，JPO＆INPIT