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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

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。

3. 发明专利

JP2015028311A 内燃機関の診断装置有权
标题翻译：内燃机诊断装置
公开(公告)号：JP2015028311A
公开(公告)日：2015-02-12
申请号：JP2013157811
申请日：2013-07-30
申请人：トヨタ自動車株式会社 , Toyota Motor Corp
发明人： ISAI TAKASHI , HAYASHI YASUTA
IPC分类号： F02D45/00 , F02D13/02 , F02D43/00
CPC分类号： F02D41/0002 , F02D13/0211 , F02D41/0255 , F02D41/08 , F02D41/18 , F02D41/221 , F02D2041/001 , Y02T10/18 , Y02T10/42
摘要：【課題】吸気バルブの作用角を変更する可変機構を備える内燃機関において吸気バルブの作用角が変更されている場合にも、吸入空気量が低下する異常が生じていることを診断することができる診断装置を提供する。【解決手段】内燃機関1は吸気バルブ11の作用角を変更する可変機構17を備える。制御部21は、アイドル運転中に吸入空気量が低下する異常が生じているか否かを診断する。制御部21は、可変機構17による作用角の変更態様に応じて、異常を診断するための異常判定閾値を変更する。【選択図】図1
摘要翻译：要解决的问题：提供一种用于内燃机的诊断装置，该内燃机包括用于改变进气门的工作角度的可变机构，即使在工作角度下也能够诊断进气量的减少异常。内燃机1包括用于改变进气门11的工作角度的可变机构17.控制部21诊断空转期间进气量的下降是否异常操作，否则。控制部21根据可变机构17的变形形式改变用于诊断异常的异常判定阈值。

4. 发明专利

JP2007154779A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2007154779A
公开(公告)日：2007-06-21
申请号：JP2005351633
申请日：2005-12-06
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： HAYASHI YASUTA , KAMIURA HIBIKI , HAMADA TAKASHI
IPC分类号： F02D45/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To accurately detect variation of operating angles among cylinders in a multiple cylinder engine.
SOLUTION: In the multiple cylinder engine provided with a variable valve gear varying operating angle of an engine valve (intake valve) provided on a plurality of cylinders respectively, variation of operating angle among cylinders is accurately detected by changing an operation condition of the engine to perform control increasing engine rotation speed (steps ST3, ST4), when variation of operating angle among a plurality of cylinders is detected. Then combustion condition of engine in an idling area or a partial area or the like is stabilized by performing correction of the variable valve gear or the like based on detection results obtained in such a way.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：准确地检测多缸发动机中的气缸之间的操作角度的变化。解决方案：在具有分别设置在多个气缸上的发动机气门（进气阀）的可变气门变速操作角度的多气缸发动机中，通过改变气缸的操作角度的变化来精确地检测气缸之间的操作角度的变化，当检测到多个气缸中的操作角度的变化时，执行控制提高发动机转速的发动机（步骤ST3，ST4）。然后，基于以这种方式获得的检测结果，通过对可变气门齿轮等进行校正，使发动机在空转区域或部分区域等中的燃烧状态稳定。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2013113216A Apparatus for detecting abnormality of imbalance of air-fuel ratio among cylinders 有权
标题翻译：用于检测气缸中空气燃料比例不平衡的装置
公开(公告)号：JP2013113216A
公开(公告)日：2013-06-10
申请号：JP2011260299
申请日：2011-11-29
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ISAI TAKASHI , HAYASHI YASUTA , ITO TOKIJI
IPC分类号： F02D41/04 , F02D41/22 , F02D45/00
CPC分类号： G01M15/042 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To secure sufficient detection accuracy by preventing erroneous decision.SOLUTION: The apparatus for detecting an abnormality of an imbalance of air-fuel ratios among cylinders includes: a variable working angle mechanism which varies a working angle of an intake valve in each of the cylinders in a multi-cylinder internal combustion engine; and an abnormality detection means which detects a parameter X(i) regarding the rotational fluctuation of each of the cylinders and detects whether or not there is the abnormality of the imbalance of the air-fuel ratios among the cylinders based on the detected parameter. The abnormality detection means suspends to determine that the air-fuel ratio is normal when the working angle S in detecting the parameter is within a predetermined large working angle range (step S207: YES), and determines that the air-fuel ratio is normal (step S208) when the working angle in detecting the parameter is within a predetermined small working angle range that is on a small working angle side rather than the large working angle range (step S207: NO).
摘要翻译：要解决的问题：通过防止错误的决定来确保足够的检测精度。解决方案：用于检测气缸中空燃比不平衡异常的装置包括：可变工作角机构，其改变多缸内燃机中每个气缸中的进气门的工作角度 ; 以及异常检测单元，其检测与各气缸的旋转变动有关的参数X（i），并基于检测出的参数，检测气缸中的空燃比的不平衡是否异常。当检测参数中的工作角度S处于预定的大的工作角度范围内时，异常检测装置暂停以确定空燃比正常（步骤S207：是），并且确定空燃比正常（步骤S208），当检测参数的工作角度处于小的工作角度而不是大的工作角度范围内的预定的小的工作角度范围内（步骤S207：否）。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2011256802A Variable valve system for internal combustion engine 审中-公开
标题翻译：用于内燃机的可变阀系统
公开(公告)号：JP2011256802A
公开(公告)日：2011-12-22
申请号：JP2010132813
申请日：2010-06-10
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SHOGENJI YOSHIYUKI , ITO TOKIJI , TAKIMOTO FUMITO , HAYASHI YASUTA
IPC分类号： F02D13/02 , F02D45/00
CPC分类号： F01L1/34 , F01L1/20 , F01L2800/09 , F02D41/0002 , F02D41/2461 , F02D2041/001 , Y02T10/42
摘要： PROBLEM TO BE SOLVED: To restrain to a low degree the influence on the engine operation of large change of the valve characteristics of an engine valve at execution of an initialization process.SOLUTION: In the initialization process of making the driving position of an actuator 15 sensed by a position sensor 35 correspond to an actual driving position, the actuator 15 is moved from the Lo end to the Hi end. The initialization process execution conditions include a condition of having the increase amount of an acceleration demand to an engine 1 is the same or more than a determination value a. Since the engine operation fluctuation is larger under a condition that the increase amount of the acceleration demand to the engine 1 is large, even in the case the maximum lift amount and the working angle of an intake valve 9 are largely changed according to the movement of the actuator 15 in the initialization process, the influence of the change on the engine operation is not outstanding. In other words, the influence by the movement of the actuator 15 on the engine operation is made relatively smaller in the initialization process.
摘要翻译：要解决的问题：在执行初始化处理时，能够低度地抑制发动机气门的阀特性的大的变化对发动机运转的影响。解决方案：在由位置传感器35检测到的致动器15的驱动位置对应于实际驾驶位置的初始化过程中，致动器15从Lo端移动到Hi端。初始化处理执行条件包括使发动机1的加速要求量增加量与判定值a相同或更大的条件。由于在对发动机1的加速要求量增加量大的情况下发动机运转波动较大的情况下，即使在进气门9的最大提升量和作用角度根据运动执行器15在初始化过程中，变化对发动机运转的影响并不突出。换句话说，在初始化过程中，致动器15的运动对发动机操作的影响相对较小。版权所有（C）2012，JPO＆INPIT

7. 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

8. 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

9. 发明专利

JP2012145054A Apparatus for detecting fluctuation abnormality of air-fuel ratios among cylinders of multi-cylinder internal combustion engine 审中-公开
标题翻译：用于检测多缸内燃机缸体空气燃料比例波动异常的装置
公开(公告)号：JP2012145054A
公开(公告)日：2012-08-02
申请号：JP2011004852
申请日：2011-01-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ISAI TAKASHI , HAYASHI YASUTA
IPC分类号： F02D41/22 , F02D13/02 , F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for detecting a fluctuation abnormality of air-fuel ratios among cylinders of a multi-cylinder internal combustion engine, which increases a detecting opportunity.SOLUTION: The apparatus includes: a changing means for changing an operation angle of an intake valve according to an operating condition of the internal combustion engine; a fuel cutting means for executing a fuel cut when a predetermined condition is established; a rich control means for controlling an air-fuel ratio to be richer than a predetermined standard value; and a detecting means for detecting the fluctuation abnormality of the air-fuel ratio among the cylinders, when the operation angle S is not more than a predetermined value Sx, and when the rich control is being made by the rich control means just after return from the fuel cut.
摘要翻译：要解决的问题：提供一种用于检测多缸内燃机的气缸之间的空燃比的波动异常的装置，这增加了检测机会。解决方案：该装置包括：根据内燃机的运行状态改变进气门的操作角度的改变装置; 燃料切断装置，用于当建立预定条件时执行燃料切断; 用于控制空燃比比预定标准值更丰富的丰富控制装置; 以及检测装置，用于当操作角度S不大于预定值Sx时检测气缸之间的空燃比的波动异常，并且当富控制装置在刚返回之后进行浓控制时燃油切断。版权所有（C）2012，JPO＆INPIT

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