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1. 发明专利

JP2012225331A Internal combustion engine with variable compression ratio mechanism 有权
标题翻译：具有可变压缩比机构的内燃机
公开(公告)号：JP2012225331A
公开(公告)日：2012-11-15
申请号：JP2011096290
申请日：2011-04-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FURUISHI AKIRO , TANAKA HIROYUKI
IPC分类号： F02D13/02 , F02D29/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine with a variable compression ratio mechanism that can suppress the occurrence of knocking or pre-ignition, when a valve closing timing of an intake valve controlled by a variable valve timing mechanism is preset with respect to a mechanical compression ratio controlled by the variable compression ratio mechanism and detection of a current mechanical compression ratio becomes impossible, thus disabling control of the valve closing timing of the intake valve.SOLUTION: When the current mechanical compression ratio can not be detected (t1), the variable compression ratio mechanism is operated until the mechanical compression ratio (E) reaches a lower limit (EL), and the variable valve timing mechanism retards the valve closing timing (IVC) of the intake valve toward the valve closing timing (IVC1), which is set with respect to an upper limit of the mechanical compression ratio.
摘要翻译：要解决的问题：为了提供具有可变压缩比机构的内燃机，其可以抑制由可变气门正时机构控制的进气门的关闭正时被预先设定的可以抑制爆震或预启动的发生关于由可变压缩比机构控制的机械压缩比，并且不能检测当前机械压缩比，从而禁止对进气门的关闭正时的控制。解决方案：当无法检测到当前的机械压缩比（t1）时，运行可变压缩比机构，直到机械压缩比（E）达到下限（EL），并且可变气门正时机构延迟进气门朝向关闭时刻（IVC1）的阀关闭正时（IVC），其相对于机械压缩比的上限设定。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013160087A Failure diagnostic device of cylinder internal pressure sensor 有权
标题翻译：气缸内部压力传感器故障诊断装置
公开(公告)号：JP2013160087A
公开(公告)日：2013-08-19
申请号：JP2012021032
申请日：2012-02-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FURUISHI AKIRO , URANO SHIGEYUKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnostic device of a cylinder internal pressure sensor, configured to highly accurately detect a drift generated in the cylinder internal pressure sensor, even in a cycle where cylinder internal pressure data cannot be obtained in a compression stroke.SOLUTION: The quantity of generated heat is calculated for each crank angle by using cylinder internal pressure based on sensor output of a cylinder internal pressure sensor. A sectional heat quantity is calculated for a predetermined crank angle section from maximum heat quantity generation period to exhaust valve opening period, in a combustion stroke immediately after starting an internal combustion engine. When the sectional heat quantity is beyond a predetermined range, a determination is made that a drift is generated in the sensor output of the cylinder internal pressure sensor.
摘要翻译：要解决的问题：为了提供一种气缸内部压力传感器的故障诊断装置，即使在压缩冲程中不能获得气缸内部压力数据的循环中，也能够高精度地检测气缸内部压力传感器中产生的漂移。解决方案：通过使用基于气缸内部压力传感器的传感器输出的气缸内部压力，计算每个曲柄角度产生的热量。在起动内燃机之后的燃烧行程中，对于从最大热量产生期间到排气阀开度期间的规定的曲柄角段，计算出截面热量。当分段热量超过预定范围时，确定在气缸内部压力传感器的传感器输出中产生漂移。

3. 发明专利

JP2012112314A Internal combustion engine control device 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2012112314A
公开(公告)日：2012-06-14
申请号：JP2010262130
申请日：2010-11-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FURUISHI AKIRO , IKEDA SHINJI , URANO SHIGEYUKI
IPC分类号： F02D41/06
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine control device capable of ensuring a high startability.SOLUTION: The control device includes a direct injection injector, a cylinder pressure sensor, and a crank angle sensor. The combustion pressure in a crank angle in a post-ignition flame propagation detected by the cylinder pressure sensor (hereafter, referred to as a post-ignition crank angle) is divided by a unit crank angle, and a combustion speed is calculated. The control device determines whether the combustion speed is lower than the reference combustion speed during normal combustion in the post-ignition crank angle. When the combustion speed is lower than the reference combustion speed, the amount of an additional fuel is injected to a present combustion cylinder in the same cycle as a cycle from which the combustion speed is calculated.
摘要翻译：要解决的问题：提供能够确保高起动性的内燃机控制装置。解决方案：控制装置包括直接喷射喷射器，气缸压力传感器和曲柄角传感器。由气缸压力传感器检测到的点火后火焰传播中的曲柄角度的燃烧压力（以下称为点火后曲柄角）除以单位曲柄角度，并计算燃烧速度。控制装置确定燃烧速度是否低于在点火后曲柄角度的正常燃烧期间的参考燃烧速度。当燃烧速度低于参考燃烧速度时，附加燃料的量在与计算燃烧速度的循环相同的循环中被注入到本燃烧缸中。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2013104334A Cylinder internal pressure estimation device 审中-公开
标题翻译：气缸内压估计装置
公开(公告)号：JP2013104334A
公开(公告)日：2013-05-30
申请号：JP2011247675
申请日：2011-11-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUDA HIROMICHI , SAWADA YUTAKA , FURUISHI AKIRO
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a cylinder internal pressure estimation device capable of estimating a value of a cylinder internal pressure that cannot be easily detected by a cylinder internal pressure sensor.SOLUTION: An ECU 60 calculates Pbeing a reference cylinder internal pressure on the basis of Pbeing a cylinder internal pressure during an expansion stroke of an engine 10, Vbeing an in-cylinder volume at the time of the cylinder internal pressure, Vbeing an in-cylinder volume at a piston top dead center, κ being a specific heat ratio, and a relation determined by κ=(logP-logP)/(logV-logV). The ECU 60 obtained a peak crank angle being a crank angle in response to a peak cylinder internal pressure of the engine 10. The ECU 60 finds an estimation value of the cylinder internal pressure on the basis of the calculated Pand a correction coefficient α determined so that it becomes smaller as the obtained peak crank angle separates from the top dead center.
摘要翻译：要解决的问题：提供一种能够估计由气缸内部压力传感器不能容易地检测的气缸内部压力的值的气缸内部压力估计装置。解决方案：ECU 60基于作为气缸的P θ计算作为基准气缸内部压力的P 0 θ是气缸内部压力时的缸内体积，V TDC 为活塞上止点的缸内容积，κ为比热比，k =（logP θ -logP 0 ）/（logV θ -logV TDC ）。 ECU60响应于发动机10的峰值气缸内部压力而获得曲轴角度曲线。曲轴角度根据计算出的P 0 ，并且确定为使得其随着所获得的峰值曲柄角与上止点分离而变小的校正系数α。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012189069A Internal combustion engine 审中-公开
标题翻译：内燃机
公开(公告)号：JP2012189069A
公开(公告)日：2012-10-04
申请号：JP2011055837
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： TANAKA HIROYUKI , FURUISHI AKIRO , WATANABE SATOSHI , KOBAYASHI DAISUKE , MORI JUNICHI
IPC分类号： F02D15/04 , F02B75/04 , F02D13/02 , F02D15/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine that includes a variable compression ratio mechanism and a variable valve gear, and that can reduce fuel consumption.SOLUTION: The internal combustion engine includes the variable compression ratio mechanism and the variable valve gear, and is formed to advance a timing for closing an intake valve and reduce a mechanical compression ratio when a request load increases. The variable valve gear starts to advance the timing for closing the intake valve after a predetermined delay time passes since an increase of the request load is detected. The variable compression mechanism is formed to execute delay control of mechanical compression ratio, the control decelerates deterioration the mechanical compression ratio by almost maintaining the mechanical compression ratio, wherein the smaller the increase of the request load is, the more a start timing for the delay control of the mechanical compression ratio is accelerated.
摘要翻译：要解决的问题：提供一种包括可变压缩比机构和可变阀齿轮的内燃机，并且可以降低燃料消耗。解决方案：内燃机包括可变压缩比机构和可变阀齿轮，并且形成为提前关闭进气门的定时，并且当请求负载增加时减小机械压缩比。由于检测到请求负载的增加，所以可变气门齿轮在经过预定的延迟时间之后开始提前关闭进气门的正时。可变压缩机构形成为执行机械压缩比的延迟控制，控制通过几乎保持机械压缩比来减小机械压缩比，其中，请求负载的增加越小延迟的开始时间越多加速机械压缩比的控制。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013147946A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2013147946A
公开(公告)日：2013-08-01
申请号：JP2012007141
申请日：2012-01-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SUZUKI YUSUKE , FURUISHI AKIRO
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To precisely determine the failure of a cylinder internal pressure sensor in a wide operation range and concurrently to attain high determination precision even when performing air-fuel ratio control.SOLUTION: An ECU50 calculates maximum cylinder internal pressure Pmax affected by output sensitivity of a cylinder internal pressure sensor 44 and the center of gravity of combustion CA50 which is a combustion timing index T not affected by the output sensitivity based on only the output of the sensor. Abnormality of the output sensitivity is detected based on a ratio A between a Pmax estimated value which is the maximum cylinder internal pressure calculated based on the center of gravity of combustion CA50 and a detected Pmax value which is an actually obtained maximum cylinder internal pressure. As a result, the abnormality of the sensitivity is detected based on only the output of the cylinder internal pressure sensor 44 in a wide operation range. The high detection precision is attained even when air-fuel ratio control is executed by avoiding the phenomenon where the combustion timing index T is kept at a fixed value by the air-fuel ratio control.
摘要翻译：要解决的问题：即使在执行空燃比控制时，也能够在较宽的运行范围内精确地确定汽缸内部压力传感器的故障，并且同时达到高精度的精度。解决方案：ECU50计算受输出影响的最大气缸内部压力Pmax 气缸内部压力传感器44的灵敏度和作为仅基于传感器的输出而不受输出灵敏度影响的燃烧正时指标T的燃烧CA50的重心。基于基于燃烧CA50的重心计算出的最大气缸内压的Pmax估计值与实际获得的最大气缸内压的检测到的Pmax值之间的比值A，检测输出灵敏度的异常。结果，仅在大的工作范围内仅基于气缸内部压力传感器44的输出来检测灵敏度的异常。即使通过避免通过空燃比控制将燃烧正时指标T保持在固定值的现象来执行空燃比控制，也能够获得高检测精度。

7. 发明专利

JP2012197736A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2012197736A
公开(公告)日：2012-10-18
申请号：JP2011063091
申请日：2011-03-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FURUISHI AKIRO , HOKUTO HIROYUKI , SAKAYANAGI YOSHIHIRO
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine that calculates an amount of residual moisture in a cylinder when cranking before fuel injection, and in response to the calculation, can properly set a time to energize a heater before combustion.SOLUTION: An amount of heat generated before fuel injection is calculated based on a pressure inside a cylinder within an adiabatic compression/expansion period detected by an in-cylinder pressure sensor, and a volume inside a cylinder when the pressure is detected. An amount of residual moisture in the cylinder can be calculated based on a difference between the predetermined amount of heat generation and the amount of generated heat. A more amount of residual moisture in the cylinder means more delay in the starting time to energize a heater of the exhaust sensor.
摘要翻译：要解决的问题：提供一种用于内燃机的控制装置，其计算在燃料喷射之前起动时气缸中的残余水分量，并且响应于该计算，可以适当地设定加热器的通电时间燃烧前解决方案：基于在由缸内压力传感器检测到的绝热压缩/膨胀时段内的气缸内的压力以及当检测到压力时气缸内的体积计算在燃料喷射之前产生的热量。可以基于预定发热量与发热量之间的差异来计算气缸中的残留水分量。气缸中更多的残余水分意味着在启动时间上更多的延迟来对排气传感器的加热器通电。版权所有（C）2013，JPO＆INPIT

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