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61. 发明专利

JP2008180097A Catalyst deterioration suppression device of internal combustion engine 审中-公开
标题翻译：内燃机催化降解抑制装置
公开(公告)号：JP2008180097A
公开(公告)日：2008-08-07
申请号：JP2007012392
申请日：2007-01-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO , HIRATA ATSUSATO
IPC分类号： F01N3/20 , B01D53/86 , F01N3/04 , F01N3/18
摘要： PROBLEM TO BE SOLVED: To provide a catalyst deterioration suppression device of an internal combustion engine capable of suppressing occurrence of exhaust pressure loss. SOLUTION: This catalyst deterioration suppression device of an internal combustion engine is provided with an exhaust gas purifying catalyst device 14 arranged in an exhaust system, and a water spray device 16 that is structured to lower the temperature of the catalyst device by spray of water. The catalyst deterioration suppression device is also provided with a water spray prohibition means prohibiting the spray of water by the water spray device when the outlet temperature of the exhaust system is below a predetermined value. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供能够抑制排气压力损失的发生的内燃机的催化剂劣化抑制装置。解决方案：内燃机的催化剂劣化抑制装置设置有布置在排气系统中的排气净化催化剂装置14和喷淋装置16，其被构造成通过喷雾降低催化剂装置的温度的水。催化剂劣化抑制装置还设置有防水装置，当排气系统的出口温度低于预定值时，禁止喷水装置喷射水。版权所有（C）2008，JPO＆INPIT

62. 发明专利

JP2008106666A Catalyst deterioration detection device for internal combustion engine 审中-公开
标题翻译：用于内燃机的催化剂检测装置
公开(公告)号：JP2008106666A
公开(公告)日：2008-05-08
申请号：JP2006289903
申请日：2006-10-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KITAURA KOICHI , FUJIWARA TAKAHIKO , MIZOGUCHI HIROAKI
IPC分类号： F01N3/20 , F01N3/24 , F02D41/12 , F02D41/14 , F02D45/00
CPC分类号： F02D41/0295 , F01N3/10 , F01N11/007 , F02D2200/0814
摘要： PROBLEM TO BE SOLVED: To accurately discriminate a small difference of degree of deterioration of a catalyst by using the maximum O 2 storage capacity of a catalyst. SOLUTION: Active air-fuel ratio control vibrating exhaust air-fuel ratio Vfr with keeping a boarder at a predetermined center air-fuel ratio AFc is executed when deterioration of the catalyst is detected. When oxygen is absorbed to the catalyst, exhaust air-fuel ratio is vibrated so that exhaust gas air-fuel ratio shifted to a rich side gets to theoretical air-fuel ratio AFs or less and that degree of leanness per one vibration is larger than degree of richness. Lean gas is intermittently supplied with biasing lean/rich balance of exhaust gas to a lean side, and oxygen can be absorbed to the catalyst by maximally using the O 2 storage capacity of the catalyst. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过使用催化剂的最大存储容量来精确地区分催化剂劣化程度的小差异。解决方案：当检测到催化剂的劣化时，执行主动空燃比控制振动废气空燃比Vfr，同时将边界保持在预定中心空燃比AFc。当氧气被催化剂吸收时，排气空燃比振动，使得排出空燃比转移到浓侧达到理论空燃比AF以下，每一次振动的稀薄度大于等于的丰富。稀释气体被间歇地供应，排气的贫/富均衡偏向贫侧，氧气可以通过最大限度地利用催化剂的O SB SB2储存能力吸收到催化剂中。版权所有（C）2008，JPO＆INPIT

63. 发明专利

JP2008063994A Air-fuel ratio control device of internal combustion engine 有权
标题翻译：内燃机空燃比控制装置
公开(公告)号：JP2008063994A
公开(公告)日：2008-03-21
申请号：JP2006241633
申请日：2006-09-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , KATO NAOTO , OKAZAKI SHUNTARO , IDE KOJI
IPC分类号： F02D41/14 , F01N3/24 , F02D41/02 , F02D45/00
CPC分类号： F02D41/027 , F01N2570/16 , F02D41/0295 , F02D41/1454 , F02D2200/0814
摘要： PROBLEM TO BE SOLVED: To restrain exhaust of emission in a state of reducing oxygen storage capacity of a catalyst, in an air-fuel ratio control device of an internal combustion engine. SOLUTION: A fuel injection quantity is controlled so that the air-fuel ratio of exhaust gas flowing in the catalyst, vibrates by sandwiching the stoichiometric air-fuel ratio. When estimating that the oxygen storage capacity of the catalyst is reduced more than predetermined reference capacity, amplitude of the air-fuel ratio is reduced by control of the fuel injection quantity. A degree of the oxygen storage capacity of the catalyst can be estimated from amplitude of an output signal of an oxygen sensor arranged on the downstream side of the catalyst. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在内燃机的空燃比控制装置中，抑制催化剂的储氧能力降低的状态下的排气排气。解决方案：控制燃料喷射量，使得在催化剂中流动的排气的空燃比通过夹着理论空燃比而振动。当估计催化剂的储氧能力比预定参考容量减少时，通过控制燃料喷射量来降低空燃比的幅度。可以根据布置在催化剂下游侧的氧传感器的输出信号的幅度来估计催化剂的储氧能力。版权所有（C）2008，JPO＆INPIT

64. 发明专利

JP2008031929A Air fuel ratio control device for internal combustion engine and fuel injection quantity control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的燃油比率控制装置和用于内燃机的燃料喷射量控制装置
公开(公告)号：JP2008031929A
公开(公告)日：2008-02-14
申请号：JP2006207014
申请日：2006-07-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAGIMOTO TAIGA , FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , KAKO JUNICHI , KATO NAOTO , OKAZAKI SHUNTARO
IPC分类号： F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air fuel ratio control device for an internal combustion engine capable of more quickly making actual air fuel ratio consistent with target air fuel ratio. SOLUTION: This device updates first time integration value SDVoxz1 integrating differential output by time based on present differential output (difference between output value and input value of an air fuel sensor in a downstream of a catalyst) during transition period Tk following fuel increase period, downstream side FR learning correction quantity is updated based on the updated first time integration value, second time integration value SDVoxs2 and downstream side FB learning correction quantity is maintained constant, and fuel injection quantity is determined based on downstream side FB correction quantity and downstream side FB learning correction quantity. After the transition period, the device continues to update the first time integration value and the downstream side FB correction quantity, updates second time integration value based on the present differential output, and updates the downstream side FB learning correction quantity based on the updated second time integration value. Consequently, the downstream side FE correction quantity and the downstream side FB learning quantity can be appropriately calculated. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够更快地使实际空燃比与目标空燃比一致的内燃机的空燃比控制装置。
解决方案：该装置根据现在的差分输出（催化剂下游的空气燃料传感器的输出值与输入值之间的差值），根据燃料增加后的过渡期间Tk，逐次积分差分输出的第一时间积分值SDVoxz1 基于更新的第一时间积分值更新下游侧FR学习校正量，第二时间积分值SDVoxs2和下游侧FB学习校正量保持恒定，并且基于下游侧FB校正量和下游确定燃料喷射量侧FB学习校正量。在过渡期后，设备继续更新第一时间积分值和下游侧FB校正量，基于当前差分输出更新第二时间积分值，并且基于更新的第二次更新下游侧FB学习校正量积分值。因此，可以适当地计算下游侧FE校正量和下游侧FB学习量。版权所有（C）2008，JPO＆INPIT

65. 发明专利

JP2007304068A Exhaust fine particle measuring device 有权
标题翻译：排气微粒测量装置
公开(公告)号：JP2007304068A
公开(公告)日：2007-11-22
申请号：JP2006135602
申请日：2006-05-15
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIZOGUCHI HIROAKI , FUJIWARA TAKAHIKO
IPC分类号： G01N25/22
CPC分类号： G01N1/2252 , F01N3/101 , F01N3/106 , F01N3/2026 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N2560/025 , F01N2560/05 , F01N2560/06 , F02D41/0235 , F02D41/123 , G01N15/06 , Y02T10/22 , Y02T10/26 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To accurately measure fine particles in exhaust gas, using an exhaust fine particle measuring device. SOLUTION: A PM sensor 62 which measures fine particle amount in the exhaust gas is provided between a three-way catalyst 49 and a muffler 50 in an exhaust pipe 47. The PM sensor 62 is constituted so that an oxidation catalyst 71 and an electric heater 72 are fixed, being piled up and that a temperature sensor 73, for measuring the temperature of the oxidation catalyst 71, is interposed between them. Ceria, as an oxygen storage agent storing oxygen in the exhaust gas, is supported on top of the oxidation catalyst 71, and ECU 51 calculates the deposited amount of the exhaust fine particles, based on the integrated value of the temperature rise amount and the air amount sucked, when the oxidation catalyst 71 is heated with the electric heater 72. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：使用排气微粒测量装置精确测量废气中的细颗粒。解决方案：在排气管47中的三元催化剂49和消声器50之间设置有测量排气中的细颗粒量的PM传感器62.PM传感器62构成为使得氧化催化剂71和电加热器72被固定，堆积，并且用于测量氧化催化剂71的温度的温度传感器73置于它们之间。作为在废气中储存氧气的氧气储存剂的二氧化铈被负载在氧化催化剂71的顶部，ECU51基于升温量和空气的积分值计算废气微粒的沉积量当氧化催化剂71与电加热器72一起加热时，吸入量。（C）版权所有（C）2008，JPO＆INPIT

66. 发明专利

JP2007255355A Fuel injection control device of internal combustion engine 有权
标题翻译：内燃机燃油喷射控制装置
公开(公告)号：JP2007255355A
公开(公告)日：2007-10-04
申请号：JP2006082599
申请日：2006-03-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATO NAOTO , KAKO JUNICHI , OKAZAKI SHUNTARO , FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , HAGIMOTO TAIGA
IPC分类号： F02D41/14 , F01N3/24 , F02D41/06 , F02D41/10 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To differentiate a rich control pattern after fuel cut control (FC) between a case in which an integrated value of deviation is converged and a case in which it is not converged in a fuel injection control device for performing air-fuel ratio feedback control at least based on the integrated value of deviation updated by the counting of deviation between the output value of an air-fuel ratio sensor on the downstream side of a catalyst and a value equivalent to a theoretical air-fuel ratio. SOLUTION: An air-fuel ratio is controlled to the theoretical air-fuel ratio AFstoich based on the feedback correction amount calculated by PID treatment of the deviation between the output value of the air-fuel ratio sensor on the downstream side of the catalyst and the sensor value equivalent to the theoretical air-fuel ratio AFstoich. The conversion of the integrated value of the deviation is determined. The FC is performed according to the operating conditions of an engine. Post-FC rich control is performed immediately after completing FC. When the integrated value of deviation is determined to be converged (Fig.4A), a reduction in the oxygen storage amount of the catalyst by the post-FC rich control is increased more than a case in which the integrated value of deviation is determined to be not converged (Fig.4B). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了区分在集成偏差积分值的情况与在燃料喷射控制装置之间不会聚的情况下的燃料切断控制（FC）之后的浓控制模式，以执行至少基于由催化剂下游侧的空燃比传感器的输出值与理论空燃比的值之间的偏差的计数而更新的偏差积分值的空燃比反馈控制。解决方案：基于通过PID处理计算出的反馈校正量，将空燃比控制为理论空燃比AF，其中，空气 - 燃料比的下游侧的空燃比传感器的输出值之间的偏差催化剂和传感器值相当于理论空燃比AFstoich。确定偏差积分值的转换。 FC根据发动机的运行条件进行。完成FC后立即执行后FC丰富控制。当积分的偏差值被确定为收敛时（图4A），通过富FC后控制，催化剂的储氧量的降低比将偏差的积分值确定为不收敛（图4B）。版权所有（C）2008，JPO＆INPIT

67. 发明专利

JP2007247574A Air fuel ratio control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：JP2007247574A
公开(公告)日：2007-09-27
申请号：JP2006073820
申请日：2006-03-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATO NAOTO , KAKO JUNICHI , OKAZAKI SHUNTARO , FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , HAGIMOTO TAIGA
IPC分类号： F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air fuel ratio control device capable of keeping fluctuation width of time integration value irrespective of cylinder suction air quantity in air fuel ratio control device executing feed back control of air fuel ratio based on time integration value of difference between output value of an electromotive type oxygen concentration sensor in a downstream of a catalyst and target air fuel ratio equivalent value. SOLUTION: The device integrates a value (DVoxs×(KL/100)×Kga) based on a deviation DVoxs which is a value subtracting output value Voxs of the oxygen concentration sensor in a downstream of the catalyst from the target air fuel ratio equivalent value Voxsref and load rate KL equivalent to cylinder suction air quantity with synchronizing with fuel injection, and renews time integration value SDVoxs (=Σ(DVoxz×(KL/100)×Kga)) of the deviation DVoxs (refer step 1360). Air fuel ratio feed back control is executed based on sub-feed back correction quantity Vafsfb to which time integration value SDVoxs is reflected. Consequently, change quantity of time integration value SDVoxs per one renewal is made smaller as the load rate KL gets smaller, and change speed of time integration value SDVoxs gets smaller. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种空燃比控制装置，其能够在空燃比控制装置中与空燃比的反馈控制基于时间积分值而与时间积分值的波动宽度保持无关地吸入空气量在催化剂下游的电动型氧浓度传感器的输出值与目标空燃比当量值之差。解决方案：设备基于偏差DVox积分值（DVoxs×（KL / 100）×Kga），DVox值是从目标空气燃料中减去催化剂下游的氧浓度传感器的输出值Voxs的值比值等效值Voxsref和负载率KL相当于与燃料喷射同步的气缸吸入空气量，并且更新偏差DVox的时间积分值SDVox（=Σ（DVoxz×（KL / 100）×Kga））（参见步骤1360）。基于反映了时间积分值SDVoxs的副反馈校正量Vafsfb执行空燃比反馈控制。因此，随着负载率KL变小，时间整合值SDVoxs的每次更新的变化量变小，并且时间积分值SDVox的变化速度变小。版权所有（C）2007，JPO＆INPIT

68. 发明专利

JP2007056755A Catalyst deterioration detection device for internal combustion engine 有权
标题翻译：用于内燃机的催化剂检测装置
公开(公告)号：JP2007056755A
公开(公告)日：2007-03-08
申请号：JP2005242720
申请日：2005-08-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO
IPC分类号： F01N3/20 , B01D53/94 , F01N3/24 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a catalyst deterioration detection device for an internal combustion engine capable of stabilizing its behavior when output of an exhaust gas sensor arranged behind catalyst fluctuates to improve deterioration detection precision of catalyst. SOLUTION: A target air-fuel ratio on the upstream side of catalyst is alternately and rectangularly changed between a rich target air-fuel ratio (afrefr) and a lean target air-fuel ratio (afrefl). Short period A/F fluctuation is given to the target air-fuel ratio by shorter period and amplitude when compared with fluctuation of base waveform along the base waveform of the target air-fuel ratio changing rectangularly. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决问题的方案：提供一种用于内燃机的催化剂劣化检测装置，其能够在布置在催化剂后面的废气传感器的输出波动时稳定其性能，以提高催化剂的劣化检测精度。解决方案：催化剂上游侧的目标空燃比在富目标空燃比（afrefr）和稀燃目标空燃比（afrefl）之间交替地和矩形地变化。与基于目标空燃比的基波形的基本波形的波动相比变短的周期和幅度，对目标空燃比进行短周期A / F波动。版权所有（C）2007，JPO＆INPIT

69. 发明专利

JP2006337205A Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：JP2006337205A
公开(公告)日：2006-12-14
申请号：JP2005163014
申请日：2005-06-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO
IPC分类号： G01N27/409
摘要： PROBLEM TO BE SOLVED: To provide a gas sensor manufacturable easily, while keeping a performance for detecting a gas component. SOLUTION: An inner cover 31 and an outer cover 41 are provided around a sensor element 25 for detecting the gas component, and the first gas passage 51 and the second gas passage 52 are formed in company therewith. The sensor element 25 is disposed in the second gas passage 52. Catalyst carrying cloth 60 for carrying a catalyst component is wound around the inner cover 31, and the catalyst carrying cloth 60 is disposed in the first gas passage 51. Hereby, gas outside the outer cover 41 flows into the first gas passage 51, and the gas is subjected to catalytic treatment when passing the catalyst carrying cloth 60 and flows into the second gas passage 52, and then the component is detected by the sensor element 25. The catalyst carrying cloth 60 is provided easily because it is wound around the inner cover 31. Resultantly, this gas sensor is manufactured easily, while keeping the performance for detecting the gas component. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供容易制造的气体传感器，同时保持用于检测气体成分的性能。解决方案：在用于检测气体成分的传感器元件25周围设置有内盖31和外盖41，并且与其形成第一气体通道51和第二气体通道52。传感器元件25设置在第二气体通道52中。用于承载催化剂组分的催化剂载体布60缠绕在内盖31上，催化剂载体布60设置在第一气体通道51中。因此，外盖41流入第一气体通道51，并且在通过催化剂载体布60并且流入第二气体通道52中时对气体进行催化处理，然后由传感器元件25检测部件。催化剂携带布60容易地被设置，因为它缠绕在内盖31周围。因此，在保持检测气体成分的性能的同时，容易地制造该气体传感器。版权所有（C）2007，JPO＆INPIT

70. 发明专利

JP2006077738A Catalyst deterioration detection device for internal combustion engine 审中-公开
标题翻译：用于内燃机的催化剂检测装置
公开(公告)号：JP2006077738A
公开(公告)日：2006-03-23
申请号：JP2004265784
申请日：2004-09-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO
IPC分类号： F01N3/20
摘要： PROBLEM TO BE SOLVED: To provide technique for more correctly detecting deterioration of an exhaust purifying catalyst in starting an internal combustion engine. SOLUTION: This device is provided with the exhaust purifying catalyst provided in an exhaust passage of the internal combustion engine to purify exhaust of the internal combustion engine, and a temperature change detection means to detect temperature change of the exhaust purifying catalyst. Immediately after start of the internal combustion engine, temperature change of the exhaust purifying catalyst is detected by the temperature change detection means (S105), and based on the detected temperature change, deterioration of the exhaust purifying catalyst is determined (S109). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种更正确地检测起动内燃机中的排气净化催化剂的劣化的技术。解决方案：该装置设置有排气净化催化剂，其设置在内燃机的排气通道中，以净化内燃机的排气;以及温度变化检测装置，用于检测排气净化催化剂的温度变化。在内燃机起动后，通过温度变化检测机构检测排气净化催化剂的温度变化（S105），根据检测出的温度变化，确定排气净化催化剂的劣化（S109）。版权所有（C）2006，JPO＆NCIPI

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