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1. 发明专利

JP2011163175A Device for control of variable valve system 有权
标题翻译：用于控制可变阀系统的装置
公开(公告)号：JP2011163175A
公开(公告)日：2011-08-25
申请号：JP2010025284
申请日：2010-02-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAYASHI YASUTA , ITO TOKIJI , TAKIMOTO FUMITO
IPC分类号： F02D13/02
CPC分类号： F02D13/0215 , F02D13/0226 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a device for control of a variable valve system, capable of ensuring a relatively wide operation angle control range while also being able to reliably avoid valve stamp. SOLUTION: An electronic control unit 10 performs an upper guard for an operation angle according to an actual value timing of an intake valve 2, and when a target valve timing is a value on the retard side of a determining value, the control unit reinforces the upper guard compared with when the target value timing is not a value on the retard side of the determining value. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可变阀系统的控制装置，其能够确保相对宽的操作角度控制范围，同时还能够可靠地避免阀盖。解决方案：电子控制单元10根据进气门2的实际定时执行操作角度的上护罩，当目标气门正时为确定值的延迟侧的值时，控制与目标值定时不是确定值的延迟侧的值相比，加强了上护罩。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2009097464A Control device for multi-cylinder internal combustion engine 审中-公开
标题翻译：多缸内燃机控制装置
公开(公告)号：JP2009097464A
公开(公告)日：2009-05-07
申请号：JP2007271330
申请日：2007-10-18
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO TOKIJI , IWAHASHI KAZUHIRO
IPC分类号： F02D13/02
摘要： PROBLEM TO BE SOLVED: To provide a multi-cylinder internal combustion engine capable of suppressing both the lowering of a fuel consumption rate and the unnecessary change of engine rotation speed. SOLUTION: The control device adjusts intake air amount through the cooperation between the change control of the maximum lift amount of an intake valve of each cylinder in an internal combustion engine and the change control of opening of a throttle valve provided in an engine intake passage. When the change control of the maximum lift amount is executed, a control lower limit value VLgd1 about the maximum lift amount is set. According to the degree of variation between cylinders of the maximum lift amount, a relationship between each basic correction value Kgdl, Kgdm and an engine load GN is learned (S102 to S104). According to the engine load GN at each time and each basic correction value Kgdl, Kgdm, the control lower limit value Lgd1 is set (S101, S106). COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供能够抑制燃料消耗率的降低和发动机转速的不必要的变化的多气缸内燃机。解决方案：控制装置通过在内燃机中的每个气缸的进气门的最大提升量的变化控制与设置在发动机中的节流阀的打开的改变控制之间的协调来调节进气量进气通道。当执行最大提升量的改变控制时，设定关于最大提升量的控制下限值VLgd1。根据最大提升量的气缸的变动程度，知道各基本校正值Kgd1，Kgdm与发动机负荷GN之间的关系（S102〜S104）。根据每次的发动机负荷GN和每个基本校正值Kgd1，Kgdm，设定控制下限值Lgd1（S101，S106）。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2013133807A Control device for variable valve mechanism 有权
标题翻译：可变阀机构的控制装置
公开(公告)号：JP2013133807A
公开(公告)日：2013-07-08
申请号：JP2011286716
申请日：2011-12-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO TOKIJI , MIYANOO YUJI , HAYASHI YASUTA
IPC分类号： F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a control device of a variable valve mechanism capable of inhibiting a combustion failure of fuel in a cylinder caused by an excessive valve overlap amount produced in an engine operation range where the valve overlap amount between an intake valve and an exhaust valve is reduced.SOLUTION: When the target valve overlap amount obtained based on a current engine rotational speed and a current engine load is a small value which is smaller than a determination value, a guard value used for guard processing to set an upper limit guard to the valve overlap amount is determined so as to be a value at further reduction side. Accordingly, the excessive valve overlap amount caused by overshoot can be lessened even if the overshoot of the valve overlap amount with respect to the guard value occurs during the transient operation of an internal combustion engine 1 in the engine operation range where the valve overlap amount is smaller than the determination value.
摘要翻译：要解决的问题：提供一种可变阀机构的控制装置，该可变阀机构能够抑制由在进气门和进气门之间的阀重叠量的发动机运转范围内产生的过大的阀重叠量引起的气缸内的燃料的燃烧故障排气阀减少。解决方案：当基于当前发动机转速和当前发动机负载获得的目标阀重叠量是小于确定值的小值时，用于保护处理以设定上限的保护值确定阀重叠量的保护作为进一步减少侧的值。因此，即使在内燃机1的过渡操作期间在阀重叠量为的发动机运转范围内发生相对于保护值的阀重叠量的过冲，也可以减小由过冲引起的过大的阀重叠量小于确定值。

4. 发明专利

JP2009097484A Displacement area learning device 审中-公开
标题翻译：位移学习设备
公开(公告)号：JP2009097484A
公开(公告)日：2009-05-07
申请号：JP2007272455
申请日：2007-10-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO TOKIJI , KANEMOTO HIROYUKI
IPC分类号： F01L13/00 , F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To prevent a displacement area from being decided under a lock abnormal condition in a position control by a displacement sensor, and to use a suitable displacement area corresponding to a misalignment when the misalignment in a relation corresponding to a displacement sensor detection value is generated.
SOLUTION: When the lock abnormal condition is detected (YES in S104), the maximum working anlge side end position Hpos is learned (S114-S118), and the minimum working angle side end position Lpos is temporary set (S120), thereby controlling a position of a moving portion. Then, if the lock abnormal condition is not resolved, the lock abnormal condition is repeatedly detected, the displacement is not decided. In the case of the misalignment in the corresponding relation, the lock abnormal condition is not detected after learning. The minimum working side end position Lpos is also learned (S126-S130), thereby continuing the position control reflecting the misalignment of the corresponding relation.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止在通过位移传感器的位置控制中的锁定异常状态下确定位移区域，并且当对应于对应于一个位置传感器的关系中的未对准时使用与不对准相对应的适当位移区域产生位移传感器检测值。解决方案：当检测到锁定异常状态（S104中为“是”）时，学习最大工作侧向端部位置Hpos（S114〜S118），最小工作角度侧端部位置Lpos被临时设定（S120）从而控制移动部分的位置。然后，如果锁定异常状态未解决，则重复检测到锁定异常状态，不决定位移。在对应关系中的未对准的情况下，学习后检测不到锁定异常状态。还学习最小工作侧端部位置Lpos（S126-S130），从而继续反映相应关系的未对准的位置控制。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2010209830A Control device for internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2010209830A
公开(公告)日：2010-09-24
申请号：JP2009058033
申请日：2009-03-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO TOKIJI
IPC分类号： F02D41/14 , F02D41/04 , F02D41/10 , F02D41/12
摘要： PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of successfully controlling emission and fuel economy by properly performing air-fuel ratio rich control even in such a state that the occurrence of a control abnormality to a lean side in air-fuel feedback control is suspected.
SOLUTION: An ECU 24 estimates the degree of a probability of the occurrence of the control abnormality at the lean side in the air-fuel ratio feedback control based on an air-fuel ratio learning value during idle operation calculated by the air-fuel ratio feedback control in the air-fuel ratio rich control starting from the end of fuel cut control. When the estimated degree of the probability of the occurrence of the control abnormality is small, the ECU 24 terminates the performance of the air-fuel ratio rich control when a first implementation term is terminated. Meanwhile, when the estimated degree of the probability of the occurrence of the control abnormality is large, the ECU terminates the performance of the air-fuel ratio rich control when a second implementation term shorter than the first implementation term is terminated.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过适当地执行空燃比丰富控制来成功地控制排放和燃料经济性的内燃机的控制装置，即使在将控制异常发生到贫怀疑有空气燃料反馈控制。解决方案：ECU24基于由空中燃料比反馈控制计算的怠速运转期间的空燃比学习值，估计空燃比反馈控制中的倾斜侧的控制异常发生的概率的程度，燃料比反馈控制在空燃比丰富的控制中从燃油切断控制结束开始。当估计发生控制异常的概率为小时，ECU24终止第一实施期限时的空燃比富控制的执行。同时，当估计发生控制异常的概率大时，当终止比第一实施期短的第二实施期时，ECU终止空燃比富控制的执行。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010159720A Diagnostic device for air-fuel ratio sensor 审中-公开
标题翻译：用于空气 - 燃料比传感器的诊断装置
公开(公告)号：JP2010159720A
公开(公告)日：2010-07-22
申请号：JP2009003479
申请日：2009-01-09
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKIMOTO FUMITO , ITO TOKIJI
IPC分类号： F02D45/00 , F02D41/02 , F02D41/04 , F02D41/22
摘要： PROBLEM TO BE SOLVED: To conduct an accurate diagnosis whether a rich signal of an air-fuel ratio sensor is properly output during a normal operation.
SOLUTION: When a state in which an intake-air volume Ga is equal to or greater than a predetermined value Ga0 is kept for a predetermined time period or longer (c1≥c10), determination is made whether an air-fuel ratio sensor on downstream side of the exhaust emission purifying catalyst is outputting a rich signal. When the rich signal is output, if it is determined that the output voltage Vr is equal to or smaller than a normal output Vr0 which is not influenced by dew condensation of sensor element, and the rich signal has been continually output for a predetermined time period or longer (c2≥c20), it is diagnosed that the rich signal is output properly.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在正常操作期间，是否正确输出空燃比传感器的丰富信号是否正确输出的准确诊断。解决方案：当进气量Ga等于或大于预定值Ga0的状态保持预定时间段（c1≥c10）时，确定空燃比在排气净化催化剂的下游侧的传感器输出浓信号。当富信号输出时，如果确定输出电压Vr等于或小于不受传感器元件的结露影响的正常输出Vr0，并且富信号已经连续输出预定时间段或更长（c2≥c20），则诊断为富信号正确输出。版权所有（C）2010，JPO＆INPIT

7. 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。

8. 发明专利

JP2013019314A Failure determining apparatus for multi-cylinder internal combustion engine 审中-公开
标题翻译：多缸内燃机失效确定装置
公开(公告)号：JP2013019314A
公开(公告)日：2013-01-31
申请号：JP2011153091
申请日：2011-07-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAYASHI YASUTA , ITO TOKIJI , ISAI TAKASHI
IPC分类号： F02D45/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To provide a failure determining apparatus for a multi-cylinder internal combustion engine, capable of precisely detecting imbalance between multiple cylinders due to small shift and large shift of an operation angle of an intake valve.SOLUTION: An engine control computer 15 measures rotation variation of a multi-cylinder internal combustion engine during idling in each of a state in which an operation angle of an intake valve 7 is small and a state in which the operation angle is large, and determines imbalance between multiple cylinders on the basis of the results. The engine control computer 15 determines small shift of the operation angle of the intake valve 7 when the rotation variation is large only while the operation angle of the intake valve 7 is small, determines large shift of the operation angle of the intake valve 7 when the rotation variation is large only while the operation angle is large, and determines lean shift of an injector 5 when the rotation variation is large in both of the states.
摘要翻译：要解决的问题：提供一种用于多缸内燃机的故障判定装置，其能够精确地检测由于小的换档而导致的多个气缸之间的不平衡，并且进气门的操作角度的大的偏移。解决方案：发动机控制计算机15在进气门7的操作角度小的状态和操作角度大的状态中的每一个中测量多缸内燃机在空转期间的旋转变化，并根据结果确定多个气瓶之间的不平衡。发动机控制计算机15仅当进气门7的操作角度小的情况下才确定进气阀7的操作角度的小的变化，当进气门7的操作角度变小时，确定进气门7的操作角度的大偏移旋转变化仅在操作角度大时才变大，并且当两个状态下的旋转变化大时，确定喷射器5的偏移。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2012189058A Fuel injection control device for multiple cylinder internal combustion engine 审中-公开
标题翻译：多缸内燃机燃油喷射控制装置
公开(公告)号：JP2012189058A
公开(公告)日：2012-10-04
申请号：JP2011055660
申请日：2011-03-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAYASHI YASUTA , ITO TOKIJI , ISAI TAKASHI
IPC分类号： F02D41/22 , F02D13/02 , F02D41/02 , F02D41/04 , F02D45/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device that can improve an exhaust emission control performance when variations among rich side cylinders occur even in a multiple cylinder internal combustion engine in which a lift amount of an intake valve is changed.SOLUTION: An engine 10 includes a lift amount variable mechanism 42 for changing the lift amount of the intake valve 30. An electronic control device 50 detects the variations among the cylinders which are the variations of air-fuel ratio among the cylinders and performs increase correction of a fuel injection quantity when the variations among the cylinders are biased to the rich side. An increase correction quantity of the fuel injection quantity is increased as the lift amount of the intake valve 30 becomes smaller.
摘要翻译：要解决的问题：提供一种燃料喷射控制装置，即使在改变进气门升程量的多气缸内燃机中也可以发生富侧气缸之间的变化时的废气排放控制性能。发动机10包括用于改变进气门30的提升量的提升量可变机构42.电子控制装置50检测气缸之间的变化，这些气缸之间的空燃比的变化是气缸和当气缸之间的变化偏向富侧时，执行燃料喷射量的校正。随着进气门30的升程量变小，燃料喷射量的增加修正量增大。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2011149325A Control device for variable valve actuation system 有权
标题翻译：可变阀门执行系统的控制装置
公开(公告)号：JP2011149325A
公开(公告)日：2011-08-04
申请号：JP2010011109
申请日：2010-01-21
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO TOKIJI
IPC分类号： F02D13/02
CPC分类号： F01L1/3442 , F01L1/024 , F01L13/0015 , F01L2001/34469 , F01L2001/34479 , F01L2800/16 , F02D13/0203 , F02D2041/001
摘要： PROBLEM TO BE SOLVED: To provide a control device for a variable valve actuation mechanism, which is able to further reliably avoid valve stamp. SOLUTION: An electronic control unit 10 learns the reference operating position of a variable valve timing mechanism 8 and calculates a first valve timing detected value as a relative value of the operating position of the variable valve timing mechanism 8 with reference to the most retarded position, also calculates a second valve timing detected value as an absolute value based on the output timing of a signal of a cam angle sensor 17, and uses one of these two valve timing detected values, at which the valve lift center is closer to the piston top dead center, to variably set the control range of the valve operating angle of an intake valve 2. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够进一步可靠地避免阀盖的可变气门致动机构的控制装置。
解决方案：电子控制单元10学习可变气门正时机构8的基准操作位置，并将第一气门正时检测值作为参考最多的可变气门正时机构8的操作位置的相对值还基于凸轮角度传感器17的信号的输出定时，计算第二气门正时检测值作为绝对值，并且使用这两个气门正时检测值中的一个，气门升程中心更靠近活塞上止点，可变地设定进气阀2的阀门操作角度的控制范围。版权所有（C）2011，JPO＆INPIT

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