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    • 1. 发明专利
    • In-cylinder pressure detection device of internal combustion engine
    • 内燃机缸内压力检测装置
    • JP2014080917A
    • 2014-05-08
    • JP2012229078
    • 2012-10-16
    • Toyota Motor Corpトヨタ自動車株式会社Fujitsu Ten Ltd富士通テン株式会社
    • URANO SHIGEYUKISAWADA YUTAKASUZUKI YUSUKEWATANABE MASATOSHI
    • F02D45/00
    • G01M15/11F02D35/023F02D41/009F02D41/123F02D41/2451G01L23/00G01M15/08
    • PROBLEM TO BE SOLVED: To provide an in-cylinder pressure detection device of an internal combustion engine, capable of accurately detecting in-cylinder pressure information corresponding to an actual crank angle, in the internal combustion engine mounting an in-cylinder pressure sensor.SOLUTION: An internal combustion engine 10 is determined whether to be in an unburnt state or not (step 100). If the result is the unburnt state, an in-cylinder pressure sensor 34 specifies an in-cylinder pressure maximum value Pduring motoring, and a crank angle sensor 42 detects a crank angle θcorresponding to the P(step 102). Next, a reference crank angle θcorresponding to an engine speed and an engine load rate is specified, and the θis corrected to be the θ(step 104). And then, in order that a measured value of a crank angle corresponding to the Pmay become a crank angle after correction, a relationship between a signal of the crank angle sensor 42 and the crank angle (measured value) corresponding thereto is corrected (step 106).
    • 要解决的问题:提供内燃机的缸内压力检测装置,能够在安装缸内压力传感器的内燃机中精确检测与实际曲柄角对应的缸内压力信息。 确定内燃机10是否处于未燃状态(步骤100)。 如果结果是未燃烧状态,则缸内压力传感器34规定汽缸内压力最大值Pduring电动,曲轴角度传感器42检测曲柄角度θ;对应于P(步骤102)。 接下来,指定对应于发动机转速和发动机负荷率的参考曲柄角度&&该角度校正为&(步骤104)。 然后,为了使与Pmay对应的曲柄角的测量值成为校正后的曲柄角,校正曲柄角传感器42的信号与其对应的曲柄角(测量值)之间的关系(步骤106 )。
    • 3. 发明专利
    • Failure detection device of internal combustion engine
    • 内燃机故障检测装置
    • JP2014020206A
    • 2014-02-03
    • JP2012156277
    • 2012-07-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • URANO SHIGEYUKI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To provide a failure detection device of an internal combustion engine capable of respectively detecting a failure of a cylinder internal pressure sensor and a failure of the internal combustion engine, in the internal combustion engine on which the cylinder internal pressure sensor is mounted.SOLUTION: A failure detection device of an internal combustion engine includes: a cylinder internal pressure sensor 34 which outputs a cylinder internal pressure detection value of an air cylinder of the internal combustion engine 10; means for calculating a difference value ΔP between the maximum value Pof a cylinder internal pressure detection value and a reference value Pof a cylinder internal pressure maximum value estimated from operational conditions of the internal combustion engine 10; and means for respectively detecting a failure of sensitivity deviation of the cylinder internal pressure sensor 34 and a failure of compression leakage of the internal combustion engine 10 depending on whether the difference value ΔP performs a prescribed change in accordance with fluctuation of the number of rotations of engine of the internal combustion engine 10.
    • 要解决的问题:提供一种能够分别检测气缸内部压力传感器的故障和内燃机的故障的内燃机的故障检测装置,该内燃机在气缸内部压力传感器是 内燃机的故障检测装置包括:缸内压传感器34,其输出内燃机10的气缸的气缸内压检测值; 用于计算气缸内部压力检测值的最大值P与从内燃机10的运转状况估计出的汽缸内部压力最大值的基准值P之间的差值Dgr; P的装置; 以及用于分别检测气缸内部压力传感器34的灵敏度偏差的故障和内燃机10的压缩泄漏的失败的装置,这取决于差值&Dgr; P是否根据数量的波动执行规定的变化 内燃机10的发动机的转速。
    • 4. 发明专利
    • Control apparatus of internal combustion engine
    • 内燃机控制装置
    • JP2012225322A
    • 2012-11-15
    • JP2011095875
    • 2011-04-22
    • Toyota Motor Corpトヨタ自動車株式会社
    • URANO SHIGEYUKIYASUDA HIROMICHI
    • F02D13/06F02D13/02F02D41/22
    • Y02T10/18Y02T10/40
    • PROBLEM TO BE SOLVED: To avoid damages received by an internal-combustion-engine body, an exhaust system, and an intake system when abnormal combustion occurs, concerning a control apparatus of an internal combustion engine.SOLUTION: The apparatus controls the internal combustion engine having a merging section at which exhaust gases coming from exhaust ports of a plurality of cylinders flow together. The apparatus includes: an abnormal combustion detection unit for performing a detection operation that detects a start of the abnormal combustion at each cylinder per cycle; a first valve control unit for controlling a variable exhaust valve device so that, if the start of the abnormal combustion is detected by the abnormal combustion detection unit, an exhaust valve of an abnormal-detected cylinder which is a cylinder detected is forcedly opened; and a second valve control unit for controlling the variable exhaust valve device and a variable intake valve device so that, if the exhaust valve of the abnormal-detected cylinder is forcedly opened by the first valve control unit, the exhaust valve is opened during the intake stroke of an uncombusted-gas flow-in cylinder which is other cylinder to be subjected to the intake stroke to close an intake valve.
    • 要解决的问题:为了避免在内燃机的控制装置上发生异常燃烧时的内燃机主体,排气系统和进气系统的损坏。 解决方案:该装置控制具有合流部分的内燃机,在该合流部分,来自多个气缸的排气口的废气流动在一起。 该装置包括:异常燃烧检测单元,用于执行检测操作,其检测每个循环的每个气缸的异常燃烧的开始; 第一阀控制单元,用于控制可变排气阀装置,使得如果异常燃烧检测单元检测到异常燃烧的开始,则被强制打开检测到的气缸的异常检测气缸的排气阀; 以及第二阀控制单元,用于控制可变排气阀装置和可变进气门装置,使得如果异常检测气缸的排气阀被第一阀控制单元强制打开,排气门在进气期间打开 未燃气体流入气缸的冲程,其是进行进气冲程的其它气缸以关闭进气门。 版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2012189061A
    • 2012-10-04
    • JP2011055685
    • 2011-03-14
    • Toyota Motor Corpトヨタ自動車株式会社
    • SANO TAKESHISUZUKI YUSUKEYASUDA HIROMICHIURANO SHIGEYUKISASAKI KEISUKE
    • F02D41/22F02D41/34F02D45/00
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine that excellently avoids the occurrence of pre-ignition regarding a control device for an internal combustion engine.SOLUTION: In a routine shown in Fig.4, at first, start timing CAof pre-ignition suppression injection is set (a step 100). Subsequently, additional driving of an injector 14 is started and an injection flow rate Qis operated from differential pressure ΔP between cylinder internal pressure Pand fuel pressure P(a step 110). Next, an operation value of the injection flow rate Qis integrated and an actual injection quantity Qis calculated (a step 120). Then, it is determined whether the calculated actual injection quantity Qis larger than a target injection quantity Q(a step 130). When determined that the actual injection quantity Qis larger than the target injection quantity Q, the additional driving of the injector 14 is stopped (a step 140).
    • 要解决的问题:提供一种用于内燃机的控制装置,其优良地避免了关于用于内燃机的控制装置的预点火的发生。 解决方案:在图4所示的程序中,首先设定预点火抑制喷射的开始时刻CA st(k)(步骤100)。 随后,开始喷射器14的附加驱动,并且通过气缸内压P f1 之间的压差ΔP来操作喷射流量Q 和燃料压力P f (步骤110)。 接下来,积分喷射流量Q f 的操作值,并计算实际喷射量Q (k) (步骤120)。 然后,确定计算出的实际喷射量Q (k)是否大于目标喷射量Q (k) SB(步骤130)。 当确定实际喷射量Q r(k)大于目标喷射量Q (k)时, 喷射器14的附加驱动被停止(步骤140)。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2012145040A
    • 2012-08-02
    • JP2011004078
    • 2011-01-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • URANO SHIGEYUKIIKEDA SHINJI
    • F02D13/02F02D23/00F02D45/00
    • Y02T10/144Y02T10/18
    • PROBLEM TO BE SOLVED: To efficiently suppress pre-ignition in an internal combustion engine with a supercharger.SOLUTION: An engine 10 includes an intake variable valve train 34, an exhaust variable valve train 36, the supercharger 38, an intake pressure sensor 44, an exhaust pressure sensor 46, a cylinder pressure sensor 48 and the like. When the pre-ignition is detected in any cylinder and the intake pressure is higher than the exhaust pressure, an ECU 50 enlarges an overlap period of an intake valve 30 and an exhaust valve 32, for example, in a cylinder which reaches an exhaust stroke at first after the pre-ignition is detected. As a result, the intake air smoothly flows out from the cylinder to an exhaust system using boost pressure. The exhaust gas flowing backward into the cylinder to become an ignition source is therefore efficiently discharged and the chain generation of the pre-ignition is suppressed.
    • 要解决的问题:为了有效地抑制具有增压器的内燃机中的预点火。 解决方案:发动机10包括进气可变气门机构34,排气可变气门机构36,增压器38,进气压力传感器44,排气压力传感器46,气缸压力传感器48等。 当在任何气缸中检测到预点火并且进气压力高于排气压力时,ECU50例如在进入排气冲程的气缸中放大进气门30和排气门32的重叠周期 首先在检测到预先点火之后。 结果,进气通过增压压力从气缸平稳地流出到排气系统。 因此,向后流入气缸而成为点火源的废气被有效地排出,并且抑制了预点火链的产生。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2010203262A
    • 2010-09-16
    • JP2009047411
    • 2009-02-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • HIROOKA SHIGEMASAMITANI SHINICHIYOSHIZAKI SATOSHISATO SATORUURANO SHIGEYUKI
    • F02D41/34F02D41/06F02P5/15
    • Y02T10/44Y02T10/46
    • PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine improved in the starting performance of the internal combustion engine achievable in stratified combustion.
      SOLUTION: In a vehicle control system 1, fuel injection timing into a cylinder and ignition timing are changed to desired timing based on the speed fluctuation of the internal combustion engine after starting is started by a compression stroke injection means, an ignition means, a fuel injection timing control means, and an ignition timing control means. Thereby, when starting is performed by compression stroke injection, favorable combustion is performed. Accordingly, it is possible to improve the starting performance of the internal combustion engine achievable in the stratified combustion.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种内燃机的控制装置,其改善了分层燃烧中可实现的内燃机的启动性能。 解决方案:在车辆控制系统1中,通过压缩冲程喷射装置开始启动之后,基于内燃机的速度波动将燃料喷射正时转换为气缸和点火正时改变为期望的定时,点火装置 ,燃料喷射正时控制装置和点火正时控制装置。 因此,当通过压缩冲程喷射进行启动时,执行良好的燃烧。 因此,可以提高分层燃烧中可实现的内燃机的起动性能。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • 筒内圧センサの異常検出装置
    • 气缸压力传感器异常检测装置
    • JP2015052289A
    • 2015-03-19
    • JP2013185280
    • 2013-09-06
    • トヨタ自動車株式会社Toyota Motor Corp
    • SASAKI KEISUKENAGAI MASAKATSUURANO SHIGEYUKI
    • F02D45/00
    • 【課題】内燃機関の圧縮比又はフリクションの異常と、筒内圧センサの異常とを切り分け、筒内圧センサの異常の有無を判定する。【解決手段】本発明の筒内圧センサの異常検出装置は、内燃機関の停止制御開始から内燃機関の停止までの時間に応じて内燃機関の圧縮比の変化量を推定し、推定された圧縮比の変化量に応じて、停止制御開始後の最大筒内圧の推定値を算出し、停止制御開始後の筒内圧センサの出力に基づいて、停止制御開始後の実際の最大筒内圧を取得する。実際の最大筒内圧と推定値とをパラメータとして、筒内圧センサの感度異常の有無が判定される。【選択図】図8
    • 要解决的问题:通过将气缸压力传感器的异常与内燃机的压缩比或摩擦力的异常相分离来确定气缸压力传感器的异常。解决方案:气缸压力传感器异常检测装置:估计压缩比的变化 根据从内燃机的停止控制开始至其停止的期间的内燃机; 根据估计的压缩比的变化计算停止控制开始后的最大气缸压力的估计值; 并根据停止控制开始后的气缸压力传感器的输出,求出停止控制开始后的实际最大气缸压力。 气缸压力传感器异常检测装置以实际最大气缸压力和估计值为参数来确定气缸压力传感器的灵敏度异常。
    • 9. 发明专利
    • Internal combustion engine control device
    • 内燃机控制装置
    • JP2013147977A
    • 2013-08-01
    • JP2012008046
    • 2012-01-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • URANO SHIGEYUKISAWADA YUTAKA
    • F02D45/00
    • F02D35/023F02D35/028F02D41/009
    • PROBLEM TO BE SOLVED: To improve a detecting accuracy of heat generation quantity during combustion based on an output of a CPS.SOLUTION: An intracylinder detecting value is detected according to the output of an intracylinder pressure sensor arranged in a predetermined cylinder of an internal combustion engine in an internal combustion engine control device. Further, the total heat generation quantity in the predetermined cylinder, and the maximum intracylinder pressure angle being a crank angle when an intracylinder pressure of the predetermined cylinder becomes the maximum are detected according to the intracylinder pressure detecting value. Further, a crank angle in which a combustion ratio according to the maximum intracylinder pressure angle becomes a predetermined combustion ratio is calculated based on a relationship between a crank angle when the combustion ratio becomes the predetermined combustion ratio and the maximum intracylinder pressure angle. A heat generation ratio in a compression upper dead center is calculated according to the intracylinder pressure detecting value. Further, heat generation quantity in the predetermined cylinder during combustion is calculated according to the value of the predetermined combustion rate to the total heat generation quantity, a crank angle becoming the predetermined combustion rate, and heat generation ratio.
    • 要解决的问题:基于CPS的输出来提高燃烧期间的发热量的检测精度。解决方案:根据布置在内燃机的预定气缸中的缸内压力传感器的输出来检测缸内检测值 发动机在内燃机控制装置中。 此外,根据缸内压力检测值来检测预定气缸中的总发热量和当预定气缸的缸内压力变为最大时的曲柄角的最大缸内压力角。 此外,基于当燃烧比变为预定燃烧比时的曲柄角与最大缸内压力角之间的关系来计算根据最大缸内压力角的燃烧比变为预定燃烧比的曲柄角。 根据缸内压力检测值计算压缩上止点的发热量。 此外,根据预定燃烧率相对于总发热量的值,变成预定燃烧率的曲柄角和发热率来计算燃烧期间的预定气缸中的发热量。
    • 10. 发明专利
    • Cylinder internal pressure detecting device of internal combustion engine
    • 内燃机缸体内压检测装置
    • JP2012225303A
    • 2012-11-15
    • JP2011095142
    • 2011-04-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • SASAKI KEISUKESAWADA YUTAKASUZUKI YUSUKEYASUDA HIROMICHIURANO SHIGEYUKI
    • F02D45/00
    • PROBLEM TO BE SOLVED: To detect a foreign matter such as a deposit deposited on a cylinder internal pressure sensor, with a simple constitution, to efficiently remove the foreign matter.SOLUTION: An ECU 60 generates vibration by an inverse piezoelectric effect by applying a voltage on a piezoelectric element of the cylinder internal pressure sensor 48, and acquires a vibration frequency Vb, and detects a foreign matter such as a deposit deposited on the cylinder internal pressure sensor 48 based on a deviation between the acquired vibration frequency Vb and a reference vibration frequency Va generated when the foreign matter is not deposited on the cylinder internal pressure sensor 48. Since no special structure or sensor is required for detecting deposition of the foreign matter, the system can be simplified. The foreign matter is removed only when detected, so that there is no need to unnecessarily execute control for removing the foreign matter, thereby reducing wasteful energy loss.
    • 要解决的问题:为了以简单的结构检测沉积在气缸内部压力传感器上的沉积物的异物,有效地除去异物。 解决方案:ECU60通过在气缸内部压力传感器48的压电元件上施加电压,通过反压电效应产生振动,并获取振动频率Vb,并且检测沉积在 基于所获取的振动频率Vb与当异物未沉积在气缸内部压力传感器48上时产生的参考振动频率Va之间的偏差的气缸内部压力传感器48.由于不需要特殊结构或传感器来检测沉积 异物,系统可以简化。 只有在检测到异物才被除去,因此不需要不必要地执行用于除去异物的控制,从而减少浪费的能量损失。 版权所有(C)2013,JPO&INPIT