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1. 发明专利

JP2013007278A Inter-cylinder air-fuel ratio dispersion abnormality detection device of multi-cylinder internal combustion engine 审中-公开
标题翻译：多缸气体燃料比分散式多缸内燃机异常检测装置
公开(公告)号：JP2013007278A
公开(公告)日：2013-01-10
申请号：JP2011138733
申请日：2011-06-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ADACHI KATSUMI , KITANO SHOTA , TANAKA HITOSHI , NAKAJIMA ISAO , ODA SUMIHISA , HAKARIYA MASAFUMI , KUSHIHAMA KIYOTAKA , NODA KAZUYUKI , KATAYAMA AKIHIRO , OBARA YUICHI
IPC分类号： F02D45/00 , F02D41/02 , F02D41/14 , F02D41/22
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide an inter-cylinder air-fuel ratio dispersion abnormality detection device capable of controlling degradation of exhaust emission in a multi-cylinder internal combustion engine.SOLUTION: The inter-cylinder air-fuel ratio dispersion abnormality detection device includes: an air-fuel ratio feedback control means for controlling the air-fuel ratio to the predetermined target air-fuel ratio based on the output of an air-fuel ratio detection means; a learning control means for performing the learning control while performing the feedback control; a fuel injection amount change control means for performing the fuel injection amount change control for forcibly changing the fuel injection amount of the predetermined object cylinder by the predetermined amount; and a detection means for detecting the inter-cylinder air-fuel ratio dispersion abnormality based on the rotational fluctuation of the predetermined object cylinder before and after the change when the fuel injection amount change control is performed to the predetermined object cylinder. When the fuel injection amount change control is performed by the fuel injection amount change control means, the learning control by the learning control means is stopped. Further, the target air-fuel ratio in the air-fuel ratio feedback control is changed from the predetermined target air-fuel ratio by the amount corresponding to the change amount in the fuel injection amount of the predetermined object cylinder in the fuel injection amount change control.
摘要翻译：解决的问题：提供一种能够控制多气缸内燃机的废气排放的劣化的气缸间空燃比色散异常检测装置。解决方案：气缸间空燃比色散异常检测装置包括：空燃比反馈控制装置，用于根据空气 - 燃料比的输出控制空燃比至预定目标空燃比; 燃料比检测装置; 学习控制装置，用于在执行反馈控制的同时执行学习控制; 燃料喷射量变更控制装置，用于执行燃料喷射量变更控制，以强制地将所述预定物料筒的燃料喷射量改变预定量; 以及检测装置，用于当对预定物体气缸执行燃料喷射量改变控制时，基于在预定物体滚筒的变化之前和之后的旋转波动来检测气缸间空燃比分散异常。当通过燃料喷射量变化控制装置执行燃料喷射量变化控制时，学习控制装置的学习控制被停止。此外，将空燃比反馈控制中的目标空燃比从预定目标空燃比改变为与燃料喷射量变化中的预定物料筒的燃料喷射量的变化量相对应的量控制。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012246903A Multi-cylinder internal combustion engine with inter-cylinder air-fuel ratio variation failure detection device 审中-公开
标题翻译：多缸内燃机与缸内空燃比变化故障检测装置
公开(公告)号：JP2012246903A
公开(公告)日：2012-12-13
申请号：JP2011121784
申请日：2011-05-31
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TANAKA HITOSHI , NAKAJIMA ISAO , ODA SUMIHISA , KUSHIHAMA KIYOTAKA , KITANO SHOTA , NODA KAZUYUKI , ADACHI KATSUMI , HAKARIYA MASAFUMI , OBARA YUICHI , KATAYAMA AKIHIRO
IPC分类号： F02D41/14 , F01N3/36 , F02D41/02 , F02D41/22 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a multi-cylinder internal combustion engine capable of preventing exhaust emission deterioration due to execution of failure detection.SOLUTION: This multi-cylinder internal combustion engine provided with an inter-cylinder air-fuel ratio variation failure detection device includes: an air-fuel ratio detection means (20, 21) for detecting an air-fuel ratio of exhaust gas; and a detection means (100) for increasing a fuel injection amount of a predetermined target cylinder and detecting inter-cylinder air-fuel ratio variation failure on the basis of rotation variation of the target cylinder at least after the increase; and a secondary air introduction means (30, 32, 34) for introducing secondary air in an exhaust passage. The exhaust emission deterioration is prevented by executing and controlling the introduction of the secondary air by the secondary air introduction means, in association with the increase in the fuel injection amount by the detection means.
摘要翻译：要解决的问题：提供一种能够防止由于执行故障检测而引起的废气劣化的多气缸内燃机。解决方案：具备缸内空燃比变动故障检测装置的多气缸内燃机具备：空燃比检测机构（20,21），其检测废气的空燃比 ; 以及检测装置（100），用于至少在增加之后基于目标气缸的旋转变化来增加预定目标气缸的燃料喷射量并检测缸间空燃比变化故障; 以及用于在排气通道中引入二次空气的二次空气引入装置（30,32,34）。与通过检测装置的燃料喷射量的增加相关联地执行和控制二次空气引入装置引入二次空气来防止废气排放恶化。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012021417A Device for determining smolder of ignition plug 审中-公开
标题翻译：用于确定点火插头的装置的装置
公开(公告)号：JP2012021417A
公开(公告)日：2012-02-02
申请号：JP2010158102
申请日：2010-07-12
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HASHIZUME KATSUSHI , OSAKI SHINSUKE , KATAYAMA AKIHIRO , UCHIDA TAKAHIRO , ONISHI AKITO , NODA KAZUYUKI , KATO TOSHIHIRO
IPC分类号： F02P17/00 , F02D45/00 , F02P17/12
摘要： PROBLEM TO BE SOLVED: To provide a device for determining smolder that improves the accuracy of the smolder determination of an ignition plug.SOLUTION: When the period when a current detection signal during the primary current energization of an ignition coil is a predetermined value or larger is a predetermined period or longer, the device determines whether a current engine operating region is an ignition generating region with an engine speed and a load factor as parameters. When the engine operating region is the ignition generating region, the device determines that "smolder occurs" when the current detection signal (drift voltage value) after the annihilation of an ion current is the predetermined value or larger, and determines that "no smolder occurs" when it is smaller than the predetermined value.
摘要翻译：要解决的问题：提供一种用于确定闷燃的装置，其提高火花塞的阴燃测定的精度。解决方案：当点火线圈的初级电流通电期间的电流检测信号为预定值或更长的时间段为预定时间段或更长时间时，该装置确定当前的发动机工作区域是否是具有发动机转速和负载系数作为参数。当发动机工作区域是点火生成区域时，当离子电流湮灭之后的电流检测信号（漂移电压值）为预定值或更大时，器件确定“发生闷燃”，并且确定“不发生闷烧 “当它小于预定值时。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012012991A Fuel injection control device of multi-cylinder internal combustion engine 有权
标题翻译：多缸内燃机燃油喷射控制装置
公开(公告)号：JP2012012991A
公开(公告)日：2012-01-19
申请号：JP2010150017
申请日：2010-06-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATAYAMA AKIHIRO , ODA SUMIHISA
IPC分类号： F02D41/04
摘要： PROBLEM TO BE SOLVED: To control as much as possible the emission deterioration due to the fuel increase to cylinders in a control device of a multi-cylinder internal combustion engine which executes a control for increasing and correcting a fuel injection amount to control the rotational fluctuation of cylinders.SOLUTION: As for the cylinder with the greatest rotational fluctuation, the fuel injection amount is increased and corrected to suppress the rotational fluctuation assuming that the rotational fluctuation is caused by the lean combustion deterioration. As for the other cylinders, the fuel injection amount is not increased and corrected even when the rotational fluctuation is occurred so as to avoid the risk to increase the fuel by mistake for a cylinder which does not need the increase and correction of the fuel injection amount. Such a control enables the proper increase and correction of the fuel injection amount, thereby suppressing the emission deterioration.
摘要翻译：要解决的问题：为了尽可能地控制多气缸内燃机的控制装置中的燃料增加的气体的排放恶化，其执行用于增加和校正燃料喷射量以进行控制的控制气缸的旋转波动。解决方案：对于具有最大旋转波动的气缸，假设旋转波动是由稀薄燃烧劣化引起的，燃料喷射量被增加和校正以抑制旋转波动。对于其他气缸，即使发生旋转波动，燃料喷射量也不会增加和校正，从而避免了不需要燃料喷射量的增加和校正的气缸错误地增加燃料的风险。这样的控制能够适当地增加和校正燃料喷射量，从而抑制排放恶化。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011252428A Device for detecting combustion deterioration 有权
标题翻译：用于检测燃烧检测的装置
公开(公告)号：JP2011252428A
公开(公告)日：2011-12-15
申请号：JP2010126349
申请日：2010-06-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ISHIDA MAKI , OKAZAKI SHUNTARO , KATAYAMA AKIHIRO , IKEJIRI YUKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To reduce variation in a detected value of a combustion deterioration rate caused by travelling of a bad road or torque fluctuation, and to improve detection accuracy.SOLUTION: The device 1 for detecting combustion deterioration calculates a second difference value by subtracting a turning-angle-velocity difference between a third cylinder which has a phase difference of a 360° crank angle from a first cylinder and a fourth cylinder in which combustion occurs next to the third cylinder from the turning-angle-velocity difference between the first cylinder which is a flame-off detection target and a second cylinder in which combustion occurs next to the first cylinder, and also calculates a flame-off determined value from an operation state of an internal combustion engine, and then compares the second difference value and the flame-off determined value to detect deterioration of a combustion state. The device further calculates an average value of a detected value which is detected within a predetermined period, as the combustion deterioration rate of the period.
摘要翻译：要解决的问题：减少由于道路不良或扭矩波动的行驶引起的燃烧恶化率的检测值的变化，并提高检测精度。解决方案：用于检测燃烧劣化的装置1通过从第一气缸和第四气缸之间减去具有360°曲柄角的相位差的第三气缸之间的转角速度差来计算第二差值从第一气缸的第一气缸与熄火检测对象之间的转角速度差与在第一气缸旁边发生燃烧的第二气缸之间的转角速度差发生在第三气缸旁边的燃烧，还计算熄火确定值，然后比较第二差值和熄火确定值以检测燃烧状态的劣化。该装置还计算在预定时段内检测到的检测值的平均值作为周期的燃烧恶化率。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2009174397A Misfire detection device for internal combustion engine 有权
标题翻译：内燃机故障检测装置
公开(公告)号：JP2009174397A
公开(公告)日：2009-08-06
申请号：JP2008012922
申请日：2008-01-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KONDO AKIRA , KATAYAMA AKIHIRO
IPC分类号： F02D45/00
CPC分类号： F02D41/1498 , F02D2200/1015 , G01M15/11
摘要： PROBLEM TO BE SOLVED: To provide a misfire detection device for an internal combustion engine capable of accurately detecting misfire even if the internal combustion engine is under an operation state that load is light and that ignition timing is controlled to substantially retarded side.
SOLUTION: This device is provided with a revolution fluctuation quantity measuring part 51 measuring revolution fluctuation quantity ΔTdi, a misfire determination part 55 determining misfire according to a comparison result of revolution fluctuation quantity and determination threshold, a light load determination part 56 determining whether the internal combustion engine is operating under a light load condition or not, and an ignition timing retardation determination part 57 determining whether ignition timing is not less than a retardation determination value or not. The misfire determination means 55 includes a map M1 setting determination threshold th1 according to engine revolution speed ne, and a map M2 setting determination threshold th2 to a side expanding revolution fluctuation quantity more than the map M1, and is constructed to determine misfire based on the map M1 and the map M2 if the engine operates under a light load condition and the ignition timing is not less than retardation determination value and to determine misfire based on only the map M1 in other cases.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使内燃机处于负载较轻的操作状态并且将点火正时控制到基本上延迟侧，也能够提供能够精确地检测失火的内燃机的失火检测装置。解决方案：该装置设有测量旋转变动量ΔTdi的旋转波动量测量部51，根据旋转变动量和判定阈值的比较结果确定失火的失火判定部55，轻负载确定部56确定内燃机是否在轻负载条件下工作，点火正时延迟确定部57判定点火正时是否不小于延迟判定值。失火判定装置55包括根据发动机转速ne的映射M1设定判定阈值th1以及比映射M1多的向侧面扩大的旋转变动量的映射M2设定判定阈值th2，构成为基于如果发动机在轻负载条件下运行并且点火正时不小于延迟确定值并且在其他情况下仅基于地图M1来确定失火，则映射M1和地图M2。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2009108690A Multiple cylinder internal combustion engine misfiring cylinder identifying apparatus 有权
标题翻译：多缸缸内燃机发动机缺油缸识别装置
公开(公告)号：JP2009108690A
公开(公告)日：2009-05-21
申请号：JP2007278853
申请日：2007-10-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATAYAMA AKIHIRO
IPC分类号： F02D45/00
CPC分类号： G01M15/11
摘要： PROBLEM TO BE SOLVED: To provide a misfiring cylinder identifying apparatus for a multiple cylinder internal combustion engine capable of identifying the misfiring cylinder of the multiple cylinder internal combustion engine only with a relatively easy logic.
SOLUTION: An electronic control unit 23 determines whether or not a single cylinder is misfiring or a plurality of cylinders is misfiring based on a revolution speed fluctuation pattern of all of the cylinders. When it is determined that a plurality of cylinders is misfiring, the electronic control unit 23 obtains an integrated value of a revolution speed fluctuation amount in a specified number of cycles for each cylinder, and identifies two cylinders among the plurality of cylinders in the order of the integrated values from largest as the misfiring cylinders. Thus, the misfiring cylinder is identified with the simple logic both when the single cylinder is misfiring and when two cylinders are misfiring by separating the determination of whether the single cylinder is misfiring or the plurality of cylinders is misfiring from the identification of the misfiring cylinder.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于多气缸内燃机的点火缸识别装置，其能够仅使用相对容易的逻辑来识别多气缸内燃机的失火气缸。解决方案：电子控制单元23基于所有气缸的转速波动模式来确定单个气缸是否发生故障，或者多个气缸是否点火。当确定多个气缸发生故障时，电子控制单元23以每个气缸的指定循环次数获得转速波动量的积分值，并以多个气缸的顺序识别两个汽缸最大的积分值作为失火气瓶。因此，当单缸发动不正常时，通过分离单缸失火的判断或者多个气缸是否由于点火不正确的气缸的识别而发生故障，两个汽缸发生故障时，就用简单的逻辑来识别出发动故障。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2006132543A Controller for internal combustion engine 有权
标题翻译：内燃机控制器
公开(公告)号：JP2006132543A
公开(公告)日：2006-05-25
申请号：JP2006014094
申请日：2006-01-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： WATANABE SATOSHI , KANAMARU MASANOBU , KATAYAMA AKIHIRO , ONAKA HIDEMI
IPC分类号： F02D41/16 , F02D43/00 , F02D45/00 , F02P5/15
摘要： PROBLEM TO BE SOLVED: To converge the number of revolutions into target number of revolutions in a short time when starting an engine. SOLUTION: An electronic control unit (ECU) 10 of the engine 1 performs control of the number of revolutions of either of control of the number of revolutions of intake amount for controlling the number of revolutions of the engine to target number of revolutions by adjusting opening of an electronic throttle valve 16 of the engine in accordance with the number of revolutions when starting the engine and control of the number of revolutions at ignition time for controlling the number of revolutions of the engine to target number of revolutions by adjusting ignition time of the engine. After starting the engine, the ECU performs the operation for causing lag of ignition time by predetermined amount to heat catalyst and reducing this lag amount gradually and sets high reduction speed of lag amount at ignition time for heating catalyst when it controls the number of revolutions at ignition time so that lag amount becomes zero in a short time. Consequently, interference of the control of the number of revolutions at ignition time with the operation for heating catalyst is prevented to converge the number of revolutions of the engine into target number of revolutions in a short time. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在启动发动机时，在短时间内将转数转换成目标转数。发动机1的电子控制单元（ECU）10进行将发动机的转数控制为目标转速的进气量的转数的控制的转数的控制通过根据发动机起动时的转速调节发动机的电子节气门16的开度，并控制点火时的转数，通过调整点火将发动机的转数控制在目标转速发动机的时间。起动发动机后，ECU进行使点火时间延迟预定量的加热催化剂的操作，并逐渐减小该滞后量，并且在点火时间设定加热催化剂的滞后量的减速速度，当其控制转速为点火时间使得滞后量在短时间内变为零。因此，防止在点火时间的转数的控制与加热催化剂的操作的干扰使发动机的转数在短时间内收敛成目标转数。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2003097334A DEVICE FOR DETECTING DETERIORATION OF CATALYST OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003097334A
公开(公告)日：2003-04-03
申请号：JP2001285885
申请日：2001-09-19
申请人： TOYOTA MOTOR CORP
发明人： UCHIDA TAKAHIRO , SAWADA YUTAKA , NAGAI TOSHINARI , KATAYAMA AKIHIRO , KUZE YASUHIRO , KATO NAOTO
IPC分类号： F02D45/00 , B01D53/86 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/04 , F02D41/12 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To determine deterioration of catalysts without largely worsening of exhaust emission by a device for detecting deterioration of the catalyst for purifying exhaust gas of an internal combustion engine. SOLUTION: An upstream side catalyst 32 and a downstream side catalyst 34 are arranged in an exhaust passage and a first O2 sensor 38 is arranged between both the catalysts, and a second O2 sensor 40 is arranged in the downstream of the downstream side catalyst 34. An air-fuel ratio is forcedly oscillated and an oxygen storage capacity OSC of the upstream side catalyst 32 is detected, and deterioration of the upstream side catalyst 32 is detected basing whether the capacity OSC is larger than a predetermined value or not. Forced oscillation of the air-fuel ratio is performed only when an oxygen storage state of the downstream side catalyst 34 is optimal.

10. 发明专利

JP2003049639A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2003049639A
公开(公告)日：2003-02-21
申请号：JP2001241239
申请日：2001-08-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATAYAMA AKIHIRO , SAWADA YUTAKA , NAGAI TOSHINARI , UCHIDA TAKAHIRO , KATO NAOTO , KUZE YASUHIRO
IPC分类号： F02D45/00 , B01D53/86 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/14
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of further improving exhaust emission control performance using the oxygen storage capacity of exhaust emission control catalyst.
SOLUTION: This catalyst exhaust emission control device for the internal combustion engine comprises storage capacity calculating means 18, 25, and 26 for calculating the oxygen storage capacity of the exhaust emission control catalyst 19 disposed on an exhaust passage 7 of the internal combustion engine 1, and a use banning means 18 that determines whether or not a predetermined banning condition is satisfied and, when the predetermined banning condition is satisfied, bands the use of the latest oxygen storage capacity calculated by the storage capacity calculating means instead of the oxygen storage capacity used until then. Further correct exhaust emission control is allowed by banning the use of the latest calculated oxygen storage capacity when the predetermined banning condition is satisfied, namely by preventing for use for the exhaust emission control of the calculated oxygen storage capacity that is concerned to be inaccurate.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够使用废气排放控制催化剂的储氧能力进一步提高废气排放控制性能的内燃机的废气排放控制装置。解决方案：用于内燃机的该催化剂废气排放控制装置包括用于计算设置在内燃机1的排气通道7上的废气排放控制催化剂19的储氧能力的储存容量计算装置18,25和26，以及确定是否满足预定禁止条件的使用禁止装置18，并且当满足预定禁止条件时，使用由存储容量计算装置计算的最新储氧容量的使用来代替所使用的储氧容量直到那时。通过在规定的禁止条件满足时禁止使用最新的计算出的氧气存储容量，即通过防止用于废气排放控制的计算的氧气存储容量的不正确来允许进一步正确的废气排放控制。

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