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    • 21. 发明专利
    • 内燃機関の排気冷却システム
    • 内燃机排气冷却系统
    • JP2015004323A
    • 2015-01-08
    • JP2013130466
    • 2013-06-21
    • トヨタ自動車株式会社Toyota Motor Corp
    • MORITA KOJI
    • F01N3/02F01N13/14
    • 【課題】冷却部を有する内燃機関の排気冷却システムにおいて、内燃機関の低負荷運転時の排気温度の低下抑制を図るとともに、排気センサの被水による故障を回避する。【解決手段】内燃機関の排気冷却システムにおいて、冷却部による冷却箇所から排気浄化触媒に至るまでの排気通路において、該排気通路を流れる排気からの受熱を抑制するように、該排気通路の内壁面の所定部位に塗布された断熱コート部が設けられる。そして、断熱コート部の下流側の触媒上流側空間の排気通路の内壁面上に配置される排気センサは、排気通路を流れる排気のうち断熱コート部上の所定の境界層領域を流れる排気として定義される所定排気が排気浄化触媒に流れ込む際の、排気流線として定義される所定排気流線が、触媒上流側空間を形成する該排気通路の内壁面の何れかの部位に近接している場合、該近接部位を除く該触媒上流側空間を形成する該排気通路の内壁面上に配置される。【選択図】図5
    • 要解决的问题:在具有冷却部的内燃机的排气冷却系统中,抑制内燃机的低负荷运转时的排气温度的降低,防止由于排气传感器的润湿而引起的故障。 :在内燃机的排气冷却系统中,在排气通路的内壁面的规定区域施加绝热涂层部,以抑制排气通路中排出的排气的热量从排气通路 将冷却部分冷却至排气净化催化剂。 布置在绝热涂层部分下游侧的催化剂上游侧空间中的排气通道的内壁表面上的排气传感器设置在限定催化剂上游侧空间的排气通道的内壁表面上,不包括 近似部分,当在排气通道中流动的排气中的限定为作为在绝热涂层部分上的规定边界层区域中流动的排气的规定排气被限定为排气流路的规定废气流线接近任何 排气通道的内壁表面的区域限定催化剂上游侧空间。
    • 22. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2014034882A
    • 2014-02-24
    • JP2012174745
    • 2012-08-07
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02D41/34F01N3/24F02D19/08F02D41/02F02D41/04
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of purifying NOx regardless of an active state of an exhaust purification catalyst without worsening fuel efficiency.SOLUTION: A control device of an internal combustion engine promotes a water-gas-shift reaction (CO+HO→CO+H) by design in an exhaust pipe 18 at an upstream side of an exhaust purification catalyst 20 while warming up the same. The water-gas-shift reaction has an activation temperature of approximately 150°C and progresses regardless of an existence of the exhaust purification catalyst 20. As a reaction formula of the water-gas-shift reaction shows, product materials thereof include H. Thus, NOx can be purified through a strong reduction function of the Hby promoting the water-gas-shift reaction.
    • 要解决的问题:提供一种能够在不降低燃料效率的情况下,不管废气净化催化剂的活性状态而净化NOx的内燃机的控制装置。解决方案:内燃机的控制装置促进水煤气 - 通过设计在排气净化催化剂20的上游侧的排气管18中进行变换反应(CO + HO→CO + H)。 水煤气变换反应具有约150℃的活化温度,并且随着排气净化催化剂20的存在而进行。作为水煤气变换反应的反应式,其产物为H.因此 ,可以通过促进水煤气变换反应的Hby的强还原功能来纯化NOx。
    • 24. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2013124634A
    • 2013-06-24
    • JP2011275153
    • 2011-12-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • KIMURA KOICHIMORITA KOJI
    • F02D41/14F01N3/08F01N3/28
    • PROBLEM TO BE SOLVED: To solve such a problem that exhaust a gas purification capacity of a catalyst device is degraded when the amount of oxygen stored in a catalyst device is insufficient when executing OT-increase control for controlling degradation caused by the temperature rise of the catalyst device.SOLUTION: This control device of an internal combustion engine has an OT-increase control means which increases a fuel injection quantity in an engine 20 when the temperature of a three-way catalyst 40 (catalyst device) exceeds an OT-increase temperature, and enriches an air-fuel ratio in the engine 20. The control device of the internal combustion engine performs the lean control of the air-fuel ratio in the engine 20 during a period from a time when the three-way catalyst 40 reaches a predetermined state until it reaches the OT-increase temperature on the basis of a required time from the time when the three-way catalyst 40 reaches the predetermined state until the time when it reaches the OT-increase temperature and a difference oxygen storage quantity between the oxygen storage quantity at the point of time when the three-way catalyst reaches the predetermined state and the maximum oxygen storage quantity of the three-way catalyst 40.
    • 解决的问题为了解决当执行用于控制由温度引起的劣化的OT增加控制时,当存储在催化剂装置中的氧气的量不足时,催化剂装置的气体净化能力的排出降低的问题 催化剂装置的上升。 解决方案:内燃机的该控制装置具有OT增加控制装置,当三元催化剂40(催化剂装置)的温度超过OT增加温度时,增加发动机20中的燃料喷射量 ,并且丰富了发动机20的空燃比。内燃机的控制装置在从三元催化剂40达到时间的期间起执行发动机20的空燃比的稀薄控制 基于从三元催化剂40达到预定状态直到其达到OT增加温度的时间所需的时间达到OT增加温度,直到达到OT-升温温度为止, 三元催化剂达到预定状态的时间点的氧气储存量和三元催化剂40的最大储氧量。(C)2013,JPO&INPIT
    • 25. 发明专利
    • Lubricating device of internal combustion engine
    • 内燃机润滑装置
    • JP2012180812A
    • 2012-09-20
    • JP2011045720
    • 2011-03-02
    • Toyota Motor Corpトヨタ自動車株式会社
    • FUKUTOMI IPPEIMORITA KOJIFUJIWARA TAKAHIKO
    • F01M11/03F01M11/10
    • PROBLEM TO BE SOLVED: To provide a lubricating device of an internal combustion engine capable of estimating the deterioration of an oil filter due to the detachment of a hydrotalcite.SOLUTION: The lubricating device (5) of the internal combustion engine includes a deterioration estimation means (84): for acquiring either one of a duration of the oil filter (40), which is disposed in a circulation passage (50) of the oil lubricating the internal combustion engine (10), or the parameter having a corelation with the duration, and the dielectric constant of the oil; for acquiring a change of the dielectric constant for either one of the duration or the parameter, based on either one of the acquired duration or the parameter and the dielectric constant; and for estimating the deterioration of the oil filter due to the detachment of the hydrotalcite from the oil filter, based on the acquired change of the dielectric constant.
    • 要解决的问题:提供一种内燃机的润滑装置,其能够估计由于水滑石的脱离导致的过滤器的劣化。 解决方案:内燃机的润滑装置(5)包括劣化推定装置(84):用于获取布置在循环通道(50)中的油过滤器(40)的持续时间中的任一个, 的润滑内燃机(10)的油,或与持续时间相关的参数和油的介电常数; 用于基于获取的持续时间或参数和介电常数中的任一个获取持续时间或参数中的任一个的介电常数的变化; 并且用于基于获得的介电常数的变化来估计由于水滑石与油过滤器的分离而导致的滤油器的劣化。 版权所有(C)2012,JPO&INPIT
    • 26. 发明专利
    • Control system of internal-combustion engine
    • 内燃机控制系统
    • JP2008215211A
    • 2008-09-18
    • JP2007054133
    • 2007-03-05
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJISUDA SHOGO
    • F02D43/00F02D45/00F02P5/15
    • Y02T10/46
    • PROBLEM TO BE SOLVED: To suppress oil dilution while relieving the limitation of the fuel injection timing, in a control system of a spark ignition type internal-combustion engine equipped with a fuel injection valve to inject the fuel directly into a cylinder.
      SOLUTION: The quantity of oil diluting fuel is reduced by shifting the ignition timing to an excessively advanced angle than the MBT in case the quantity of the fuel (which dilutes an oil) likely to dilute a lubricant oil upon attaching to the inner wall surface of each engine cylinder exceeds the upper limit value. This relieves the limitation of the fuel injection timing, and the fuel injection timing is set when the injection fuel and the sucked air can be mixed uniformly. As a result, worsening of the fuel consumption and the increase of smokes are reduced effectively.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:在具有燃料喷射阀的火花点火式内燃机的控制系统中,为了在减轻燃料喷射正时的限制的同时抑制油稀释,以将燃料直接喷射到气缸中。

      解决方案:在连接到内部的燃料(其中稀释油)可能稀释润滑油的量的情况下,通过将点火正时转移到比MBT过大的角度来减少油稀释燃料的量 每个发动机气缸的壁面超过上限值。 这样可以减轻燃料喷射正时的限制,并且可以在喷射燃料和吸入空气均匀混合时设定燃料喷射正时。 结果,有效地降低了燃料消耗的恶化和烟雾的增加。 版权所有(C)2008,JPO&INPIT

    • 27. 发明专利
    • Fuel injection control device of internal combustion engine
    • 内燃机燃油喷射控制装置
    • JP2008025502A
    • 2008-02-07
    • JP2006200693
    • 2006-07-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02D41/34F02D41/04F02D41/06F02D45/00
    • F02D41/064F02D41/3064F02D41/3076F02D41/3094F02D2200/0406Y02T10/128
    • PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine capable of appropriately changing an injection share ratio while appropriately maintaining an operating condition of the internal combustion engine.
      SOLUTION: A fuel injection control device of an internal combustion engine is equipped with a fuel injection means which allows a first fuel injection for producing stratified combustion and a second fuel injection for producing homogeneous combustion, respectively, and an injection share ratio control means by which an injection share ratio between the injection quantity of the first fuel injection and the injection quantity of the second fuel injection corresponding to one combustion stroke can be controlled to a target injection share ratio Atgt set with a prescribed engine state after start as a reference, wherein an initial injection share ratio Ai is set on the basis of the engine state at start and the change in the injection share ratio is controlled by referring to the engine state after start when changing the injection share ratio from the initial injection share ratio Ai to the target injection share ratio Atgt.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种内燃机的燃料喷射控制装置,其能够适当地改变喷射份额比,同时适当地保持内燃机的运行状态。 解决方案:内燃机的燃料喷射控制装置配备有燃料喷射装置,其分别允许用于产生分层燃烧的第一燃料喷射和用于产生均匀燃烧的第二燃料喷射,以及喷射分配比率控制 能够将与第一燃料喷射相对应的第一燃料喷射的喷射量与第二燃料喷射的喷射量之间的喷射分配比率控制在起动后的规定的发动机状态下设定为目标喷射分配比率Atgt的装置, 参考,其中基于起动时的发动机状态设定初始喷射份额比Ai,并且通过参照启动后的发动机状态来控制喷射份额比的变化,当从初始喷射份额比改变喷射份数比时 Ai到目标注入份额比例 版权所有(C)2008,JPO&INPIT
    • 28. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2005337127A
    • 2005-12-08
    • JP2004157785
    • 2004-05-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • MORITA KOJI
    • F02M63/00F02D13/02F02D41/04F02D41/34F02D43/00F02D45/00
    • F02D41/3094F02D13/0261F02D41/1454F02D2041/147
    • PROBLEM TO BE SOLVED: To use an air/fuel ratio sensor with high reliability in an internal combustion engine having a port injection valve and a cylinder injection valve.
      SOLUTION: An injection ratio of the port injection valve (31) and the cylinder injection valve (32) is calculated and a concentration of hydrogen at the calculated injection ratio is calculated from a map memorized in ECU (100). The calculated concentration of hydrogen is corrected by a inlet/outlet valve correction coefficient calculated from the map memorized in ECU based on water temperature correction coefficient calculated from the map memorized in ECU based on a cooling water temperature detected by a water temperature sensor (53), an amount of angle of lead of a inlet valve timing adjustment device (70) and an adjustment value of an amount of angle of delay of an outlet valve timing adjustment device (80). An air/fuel ratio sensor correction value at the corrected concentration of hydrogen is determined from the map memorized in ECU and is added to the detection value detected by the air/fuel ratio sensors (22, 23) to correct the air/fuel ratio sensor.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:在具有端口喷射阀和气缸喷射阀的内燃机中使用具有高可靠性的空气/燃料比传感器。 解决方案:计算端口喷射阀31和气缸喷射阀32的喷射比,并根据存储在ECU(100)中的图计算计算喷射比的氢浓度。 基于由水温传感器(53)检测到的冷却水温度,根据从存储在ECU中的地图计算出的水温校正系数,根据从存储在ECU中的地图计算出的入口/出口阀校正系数, ,入口气门正时调整装置(70)的铅角度和出口气门正时调整装置(80)的延迟角度的调整值。 根据存储在ECU中的映射确定校正氢浓度的空燃比传感器校正值,并将其与由空/燃比传感器(22,23)检测的检测值相加,以校正空/燃比传感器 。 版权所有(C)2006,JPO&NCIPI
    • 30. 发明专利
    • 内燃機関の排気冷却システム
    • 用于内燃机的排气冷却系统
    • JP2015010472A
    • 2015-01-19
    • JP2013133971
    • 2013-06-26
    • トヨタ自動車株式会社Toyota Motor Corp
    • SHINODA SACHIHISAMORITA KOJINAKAGAWA NORIHISANAGASAKA KEISUKE
    • F01N13/10F01N3/02F01N3/24F01N13/08F01N13/14
    • 【課題】排気冷却用構成を有する内燃機関の排気冷却システムにおいて、内燃機関の低負荷運転時に、好適な排気温度の低下抑制を実現する。【解決手段】内燃機関が有する複数の気筒に対応する複数の排気枝管の集合部より下流側の排気管に排気浄化触媒が配置された、該内燃機関の排気冷却システムであって、排気枝管の集合部よりも上流側の排気通路を冷却する冷却部と、冷却部による冷却箇所より下流側の排気枝管から該冷却部への熱移動を阻害するように、複数の排気枝管に対応して構成された熱伝達阻害部であって、該熱伝達阻害部による熱移動の阻害能力は、内燃機関が所定の低負荷運転状態にあるときの温度が高い排気枝管ほど、該排気枝管に対応する該阻害能力が大きくなるように設定された熱伝達阻害部と、を備える。【選択図】図2
    • 要解决的问题:为了提供一种具有排气冷却结构的内燃机的排气冷却系统,该系统适用于在内燃机的低负载运行期间适当地抑制排气温度的降低。 提供了一种用于内燃机的排气冷却系统,该排气排放控制催化剂配置在与内燃机的多个气缸相对应的多个排气支管的收集部分的下游的排气管中。 排气冷却系统包括用于冷却排气分支管的收集部分上游的排气通道的冷却部分,以及与多个排气支管相关联地构造的传热抑制部,以便抑制来自排气的热传递 分支管道由冷却部件冷却到冷却部件的位置下方,传热抑制部件具有传热抑制能力,其设定成使得当内燃机处于所述排气支管的温度较高时 预定的低负荷运行状态,对应于排气支管的抑制能力较高。