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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

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

4. 发明专利

JP2014211131A 内燃機関の空燃比制御装置有权
标题翻译：内燃机空燃比控制器
公开(公告)号：JP2014211131A
公开(公告)日：2014-11-13
申请号：JP2013088519
申请日：2013-04-19
申请人：トヨタ自動車株式会社 , Toyota Motor Corp
发明人： YOSHIKAWA YUYA , ITO TOKIJI , NAKAJIMA ISAO , TSUJI HIROAKI , KATO TOSHIHIRO , ODA SUMIHISA , HAKARIYA MASAFUMI , OKADA MASAHIDE , MATSUDA YOSHIFUMI
IPC分类号： F02D41/14 , F02D45/00
CPC分类号： F02D41/1454 , F02D41/0085 , F02D41/1441 , F02D41/1456 , F02D41/1495 , F02D41/2454 , F02D2041/1422
摘要：【課題】下流側センサの素子割れが発生した場合と、気筒間空燃比インバランスが生じている場合との判別を促進する。【課題手段】O2センサの出力値が所定値よりもリーンである状態の継続時間が所定時間以上である(S182)場合に、学習制御においてサブフィードバック制御における補正量を学習値に取り込む取り込み速度が、所定時間未満である場合よりも大きく設定される(S184)。学習制御における学習の進行に伴って、O2センサの出力状態に関する情報をより迅速に取得できるので、O2センサの素子割れが発生した場合と、気筒間空燃比インバランスが生じている場合との判別を促進することが可能になる。学習制御の完了までの間にわたり補正量ガード制御の実行を抑制するので、学習制御の完了までの間にわたって、気筒間空燃比インバランスの有無を判定するのに十分な空燃比の補正量が確保される。【選択図】図14
摘要翻译：要解决的问题：加速鉴别出气缸发生空燃比不平衡的情况下下游传感器发生元件裂纹的情况。解决方案：如果Osensor的输出值偏低的状态的持续时间为与预定值相比等于或大于预定时间（S182），用于将学习控制中的学习值中的子反馈控制的校正量捕获的速度设定为比持续时间短于预定时间（S184）。随着学习进程的学习进展，可以更迅速地获得有关Osensor输出状态的信息。因此，可以加速区分发生元件在Ossor之间出现空气燃料比不平衡的情况下发生的情况。由于在完成学习控制之前抑制了校正量保护控制的执行，因此可以确保足以确定气缸中的空燃比不平衡发生的空燃比校正量，直到学习控制完成为止。

5. 发明专利

JP2013002395A Device for detecting abnormal air-fuel ratio variation between cylinders of multi-cylinder internal combustion engine 有权
标题翻译：用于检测多缸内燃机缸体之间异常空燃比变化的装置
公开(公告)号：JP2013002395A
公开(公告)日：2013-01-07
申请号：JP2011135668
申请日：2011-06-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATAYAMA AKIHIRO , NAKAJIMA ISAO , HAKARIYA MASAFUMI , TANAKA HITOSHI , KUSHIHAMA KIYOTAKA , KITANO SHOTA , NODA KAZUYUKI , ADACHI KATSUMI , OBARA YUICHI , ODA SUMIHISA
IPC分类号： F02D45/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/22
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To properly detect an abnormal air-fuel ratio variation between cylinders.SOLUTION: An abnormal air-fuel ratio variation between cylinders detection device includes: a fuel injection amount change control means that executes fuel injection amount change control to forcibly increasingly or decreasingly change the fuel injection amount of a prescribed target cylinder so as to gradually increase an amount of change in the fuel injection amount of the prescribed target cylinder; a determination means that determines whether or not the output fluctuation amount regarding the prescribed target cylinder obtained with the execution of the fuel injection amount change control reaches a prescribed output fluctuation amount; and a detection means that detects an abnormal air-fuel ratio variation between cylinders on the basis of the amount of change in the fuel injection amount of the prescribed target cylinder by the fuel injection amount change control at the time when it is affirmatively determined by the determination means.
摘要翻译：要解决的问题：适当地检测气缸之间的异常空燃比变化。解决方案：气缸检测装置之间的异常空燃比变化包括：燃料喷射量变更控制装置，其执行燃料喷射量变更控制，强制地越来越多地或者逐渐地改变规定的目标气缸的燃料喷射量，从而逐渐增加规定目标气缸的燃料喷射量的变化量; 确定装置，确定通过执行燃料喷射量变更控制获得的关于规定目标缸的输出变动量是否达到规定的输出变动量; 以及检测装置，其基于由所述预定目标气缸的燃料喷射量的变化量通过由所述预定目标气缸的燃料喷射量确定的燃料喷射量变化控制来确定气缸之间的异常空燃比变化确定手段。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013002394A Device for detecting abnormal air-fuel ratio variation between cylinders of multi-cylinder internal combustion engine 有权
标题翻译：用于检测多缸内燃机缸体之间异常空燃比变化的装置
公开(公告)号：JP2013002394A
公开(公告)日：2013-01-07
申请号：JP2011135588
申请日：2011-06-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATAYAMA AKIHIRO , NAKAJIMA ISAO , HAKARIYA MASAFUMI , TANAKA HITOSHI , KUSHIHAMA KIYOTAKA , KITANO SHOTA , NODA KAZUYUKI , ADACHI KATSUMI , OBARA YUICHI , ODA SUMIHISA
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To more properly detect an abnormal air-fuel ratio variation between cylinders in a multi-cylinder internal combustion engine capable of performing ignition timing feedback control.SOLUTION: An device is configured to perform imbalance abnormality detection processing for detecting an abnormal air-fuel ratio variation between cylinders on the basis of the rotation fluctuation (S713) when a fuel injection amount is changed (S705, S729), and ignition timing feedback control processing for feedback-correcting the ignition timing for each cylinder so as to suppress the rotation fluctuation. In the imbalance abnormality detection processing of the device, the imbalance abnormality is detected in consideration of the correction amount of the feedback correction (S711). Without promoting the tendency to neglect and keep unsoundness of the operation of an intake system or a fuel supply system, the unsoundness can be detected as the abnormal air-fuel ratio variation between cylinders while maintaining the normal operation, and the abnormal air-fuel ratio variation between cylinders can be more properly detected.
摘要翻译：要解决的问题：能够更好地检测能够执行点火正时反馈控制的多气缸内燃机中的气缸之间的异常空燃比变动。解决方案：一种装置被配置为执行不平衡异常检测处理，用于在燃料喷射量改变时基于旋转波动（S713）来检测气缸之间的异常空燃比变化（S705，S729），以及点火正时反馈控制处理，用于对每个气缸的点火正时进行反馈校正，以抑制旋转波动。在装置的不平衡异常检测处理中，考虑到反馈校正的校正量来检测不平衡异常（S711）。在不引起忽视和保持进气系统或燃料供给系统的运行不健全的倾向的情况下，可以将不良性作为维持正常运转的气缸之间的异常空燃比变动来检测，异常空燃比气瓶之间的变化可以更正确地检测。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012246843A Inter-cylinder air-fuel ratio variation failure detection device for multi-cylinder internal combustion engine 审中-公开
标题翻译：用于多缸内燃机的缸内空气燃料比变化失效检测装置
公开(公告)号：JP2012246843A
公开(公告)日：2012-12-13
申请号：JP2011119421
申请日：2011-05-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ODA SUMIHISA , NAKAJIMA ISAO , HAKARIYA MASAFUMI , TANAKA HITOSHI , KUSHIHAMA KIYOTAKA , KITANO SHOTA , NODA KAZUYUKI , ADACHI KATSUMI , OBARA YUICHI , KATAYAMA AKIHIRO
IPC分类号： F02D41/22 , F02D9/02 , F02D11/10 , F02D41/08 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To prevent deviation in rotation immediately after the completion of fuel injection amount change.SOLUTION: This inter-cylinder air-fuel ratio variation failure detection device for a multi-cylinder internal combustion engine changes a fuel injection amount of a predetermined target cylinder during an idle operation, and detects an inter-cylinder air-fuel ratio variation failure on the basis of the rotation variation of the target cylinder at least after the change. Idle rotation speed control is executed, for causing the actual rotation speed to agree with a target idle rotation speed during the idle operation. During the fuel injection amount change, a target opening θt is calculated, on the basis of a correction amount Δθ based on a difference between the actual rotation speed and the target idle rotation speed, a learning value θg in accordance with the correction amount, and a correction value θa for correcting at least one of them. A valve opening is controlled so as to agree with the calculated target opening.
摘要翻译：要解决的问题：为了防止燃料喷射量改变完成之后的旋转偏差。解决方案：用于多缸内燃机的该缸内空燃比变化故障检测装置在怠速运转期间改变预定目标气缸的燃料喷射量，并且检测缸内空燃比至少在改变之后，基于目标气缸的旋转变化的变化失效。执行怠速转速控制，以使怠速运转时的实际转速与目标空转速度一致。在燃料喷射量变化期间，根据基于实际转速与目标空转速度之间的差的校正量Δθ，根据校正量的学习值θg，计算目标开度θt，以及用于校正其中的至少一个的校正值θa。控制阀开度以与计算的目标开度一致。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012246810A Inter-cylinder air-fuel ratio variation failure detection device for multi-cylinder internal combustion engine 审中-公开
标题翻译：用于多缸内燃机的缸内空气燃料比变化失效检测装置
公开(公告)号：JP2012246810A
公开(公告)日：2012-12-13
申请号：JP2011118137
申请日：2011-05-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TANAKA HITOSHI , OBARA YUICHI , KUSHIHAMA KIYOTAKA , NAKAJIMA ISAO , NODA KAZUYUKI , HAKARIYA MASAFUMI , KITANO SHOTA , ADACHI KATSUMI , KATAYAMA AKIHIRO , ODA SUMIHISA
IPC分类号： F02D41/22 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To stabilize engine rotation before changing a fuel injection amount to the utmost to contribute to the improvement in detection accuracy.SOLUTION: This inter-cylinder air-fuel ratio variation failure detection device for a multi-cylinder internal combustion engine changes a fuel injection amount of a predetermined target cylinder when a predetermined premise is established, and detects inter-cylinder air-fuel ratio variation failure on the basis of the rotation variation of the target cylinder before and after the change. After the premise established and before the fuel injection amount is changed, the rotation speed of the internal combustion engine is changed from a predetermined reference rotation speed to perform the search for a stable rotation speed minimizing the rotation variation of the internal combustion engine.
摘要翻译：要解决的问题：为了在改变燃料喷射量之前最大限度地稳定发动机转速，有助于提高检测精度。解决方案：用于多缸内燃机的该缸内空燃比变化故障检测装置在建立预定的前提时改变预定目标气缸的燃料喷射量，并且检测气缸间空气燃料基于目标气缸在变化前后的旋转变化的比率变化失效。在建立前提和燃料喷射量变化之前，内燃机的转速从规定的基准转速变化，以进行使内燃机的旋转变化最小的稳定转速的搜索。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012202384A Apparatus for detecting abnormality of inter-cylinder air-fuel ratio variation of multi-cylinder internal combustion engine 审中-公开
标题翻译：用于检测多缸内燃机的缸内空燃比变化异常的装置
公开(公告)号：JP2012202384A
公开(公告)日：2012-10-22
申请号：JP2011070563
申请日：2011-03-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KITANO SHOTA , TANAKA HITOSHI , NAKAJIMA ISAO , ODA SUMIHISA , HAKARIYA MASAFUMI , KUSHIHAMA KIYOTAKA , NODA KAZUYUKI , KATAYAMA AKIHIRO , OBARA YUICHI , ADACHI KATSUMI , KATO JUICHI , OGAWA YOHEI
IPC分类号： F02D41/04 , F02D41/10 , F02D41/22 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To maximally prevent deterioration in exhaust emission caused by the execution of abnormality detection.SOLUTION: An apparatus for detecting an abnormality of an inter-cylinder air-fuel ratio variation of a multi-cylinder internal combustion engine increases the fuel injection quantity of a prescribed target cylinder and detects an abnormality of an inter-cylinder air-fuel ratio variation on the basis of at least a change in the rotation of the target cylinder after an increase in fuel injection quantity. The increase in the fuel injection quantity is executed during the execution of prescribed rich control. The increase in the fuel injection quantity is executed by utilizing the timing of the rich control. Therefore, it is possible to maximally prevent the deterioration in exhaust emission caused by the execution of abnormality detection.
摘要翻译：要解决的问题：最大限度地防止由执行异常检测引起的废气排放的劣化。解决方案：一种用于检测多缸内燃机的缸内空燃比变化的异常的装置增加了规定的目标气缸的燃料喷射量，并且检测了气缸内空燃比变化的异常，至少基于燃料喷射量增加后的目标气缸的旋转变化的燃料比变化。燃料喷射量的增加在执行规定的浓控制期间执行。通过利用富控制的定时来执行燃料喷射量的增加。因此，可以最大限度地防止由异常检测的执行引起的废气排放的劣化。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2012154300A Inter-cylinder air-fuel ratio imbalance abnormality detection device for multi-cylinder internal combustion engine 有权
标题翻译：内燃机空燃比不平衡异常检测装置多缸内燃机
公开(公告)号：JP2012154300A
公开(公告)日：2012-08-16
申请号：JP2011016675
申请日：2011-01-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAKARIYA MASAFUMI , ODA SUMIHISA , SHIMADA TATSURO
IPC分类号： F02D45/00 , F02M25/08 , F02P5/15
CPC分类号： G01M15/104
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of detecting an inter-cylinder air-fuel ratio imbalance abnormality and prevent wrong detection, in a multi-cylinder internal combustion engine capable of implementing ignition timing control for each cylinder.SOLUTION: In the deice in which abnormality detection processing (S103 to S105 and S107) of detecting the inter-cylinder air-fuel ratio imbalance abnormality on the basis of revolution speed fluctuations of the multi-cylinder internal combustion engine and ignition timing control for controlling the ignition timing so as to restrict revolution speed fluctuations in the multi-cylinder internal combustion engine are implemented, the implementation of the ignition timing control is restricted when the abnormality detection processing is implemented. It is possible to improve the detecting accuracy of the inter-cylinder air-fuel ratio imbalance abnormality and to prevent the wrong detection because reduction of the rotation fluctuation accompanying with the implementation of the ignition timing control is restricted.
摘要翻译：要解决的问题为了提高能够实现每个气缸的点火正时控制的多气缸内燃机，提高气缸内空燃比不平衡异常检测的精度，防止错误的检测。解决方案：在基于多缸内燃机的转速波动和点火正时的基础上检测缸内空燃比不平衡异常的异常检测处理（S103〜S105和S107）的设置实施用于控制点火正时以控制多气缸内燃机中的转速波动的控制，当执行异常检测处理时，限制点火正时控制的实现。可以提高缸内空燃比不平衡异常的检测精度，并且防止由于点火正时控制的实施而引起的旋转波动的减小受到限制，从而防止错误的检测。版权所有（C）2012，JPO＆INPIT

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