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公开(公告)号：JP2010203321A
公开(公告)日：2010-09-16
申请号：JP2009049627
申请日：2009-03-03
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGAWA TAKASHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , YANASE YOSHINORI
CPC classification number: Y02T10/144 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To reduce NOx emission by suitably controlling EGR gas quantity when an operation state is changed to slow acceleration operation during low temperature combustion and the combustion zone is shifted from a low temperature combustion zone to a normal combustion zone in an internal combustion engine. SOLUTION: This system includes EGR control means introducing EGR gas by fully opening a high pressure EGR valve and reducing the opening of a throttle valve smaller than standard opening in the low temperature combustion zone A, and introducing the EGR gas by controlling the high pressure EGR valve to full open position and reducing the opening of a nozzle vane smaller than the standard opening in the normal combustion zone B in which engine load is heavier than that in the low temperature combustion zone A. In transition operation during which the operation state of the internal combustion engine is shifted from the low temperature combustion zone A to the normal combustion zone B, the low temperature combustion zone A is expanded to a high load side as compared with that during normal operation. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：通过在低温燃烧期间将操作状态改变为缓慢加速操作并且燃烧区从低温燃烧区转移到正常燃烧区时，通过适当地控制EGR气体量来减少NOx排放 内燃机 解决方案：该系统包括EGR控制装置，通过完全打开高压EGR阀并减小小于低温燃烧区A中的标准开度的节气门的开度来引入EGR气体，并且通过控制EGR气体引入EGR气体 高压EGR阀到完全打开位置，并且减小喷嘴叶片的开口小于在正常燃烧区域B中的标准开口，其中发动机负载比低温燃烧区域A中的发动机负载重。在其中操作的过渡操作 内燃机的状态从低温燃烧区A向正常燃烧区B移动，与正常运转时相比，低温燃烧区A扩大到高负荷侧。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010031702A
公开(公告)日：2010-02-12
申请号：JP2008192855
申请日：2008-07-25
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , ITO KATSUHIRO
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To suppress deterioration in startability, misfire, a pump loss, and an increase in engine vibration, in an engine provided with a variable valve train leaning the position of an operating angle based on the maximum operating angle or minimum operating angle of an intake valve or an exhaust valve.
SOLUTION: This control device 1 for the engine includes: an operating angle variable device 10 and a valve-opening phase variable mechanism 58 respectively varying the operating conditions of the intake valve 12 and/or the exhaust valve 13; and an ECU 50 learning the position of the operating angle based on the maximum operating angle or minimum operating angle of the intake valve 12 and/or the exhaust valve 13 of the operating angle variable device 10. After an ignition is in the ON position, the ECU 50 learns the position of the operating angle before the engine starts. Thereby, it is possible to suppress the deterioration in startability, misfire, pump loss, and increase in the engine vibration.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：在设置有基于最大操作角度倾斜操作角度位置的可变气门机构的发动机中，抑制起动性，失火，泵损失和发动机振动的增加的劣化，或 进气门或排气阀的最小工作角度。 发动机的控制装置1包括：分别改变进气门12和/或排气门13的运行状态的动作角可变装置10和开阀相位可变机构58; ECU50基于操作角度可变装置10的进气门12和/或排气门13的最大操作角度或最小操作角度来学习操作角度的位置。在点火开关处于接通位置之后， ECU50学习发动机起动前的操作角度的位置。 由此，能够抑制起动性，失火，泵损耗的降低，发动机振动的增加。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009299623A
公开(公告)日：2009-12-24
申请号：JP2008156736
申请日：2008-06-16
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , ITO KATSUHIRO
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To improve acceleration performance and reduce smoke during acceleration in an internal combustion engine provided with a variable swirl device in relation to a control device for an internal combustion engine.
SOLUTION: This control device for the internal combustion engine is provided with the variable swirl device capable of switching between a low swirl mode and a high swirl mode, an intake variable valve gear capable of varying intake valve open timing, a stable operation control means setting the variable swirl device to the high swirl mode in steady state operation in a prescribed operation area, and a transient operation control means setting intake valve open timing earlier than intake valve open timing in the prescribed operation area and making the variable swirl device go through the low swirl mode in transient operation shifting from area where load is lower than that in the prescribed operation area to the prescribed operation area.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：相对于内燃机的控制装置，在具有可变涡流装置的内燃机的加速期间，提高加速性能和减少烟雾。 解决方案：用于内燃机的该控制装置设置有能够在低涡流模式和高涡旋模式之间切换的可变涡流装置，能够改变进气门打开正时的进气可变气门齿轮，稳定运行 控制装置在规定的操作区域中将稳定状态运转中的可变涡流装置设定为高涡流模式，以及暂时运转控制装置，在规定的运转区域内比进气门打开正时更早地设定进气门开阀时间， 在负载低于规定操作区域的区域的暂态操作中，通过低涡流模式到规定的操作区域。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009299579A
公开(公告)日：2009-12-24
申请号：JP2008154935
申请日：2008-06-13
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ITO KATSUHIRO , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , OGO TOMOYOSHI
CPC classification number: Y02T10/121 , Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To properly adjust distribution of high pressure EGR gas and low pressure EGR gas, considering energy loss of an engine.
SOLUTION: The control device for an internal combustion engine is suitably used for controlling a system having a turbocharger, a low pressure EGR device, and a high pressure EGR device. Concretely, an EGR distributing/adjusting means acquires a first energy loss in a case using the high pressure EGR device and a second energy loss in a case using the low pressure EGR device, and adjust the distribution of the EGR gas recirculated by the high pressure EGR device and the EGR gas recirculated by the low pressure EGR device, based on the first energy loss and the second energy loss. Worsening of the energy loss of the internal combustion engine is thereby suppressed to suppress degradation in fuel economy.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：考虑到发动机的能量损失，适当地调整高压EGR气体和低压EGR气体的分配。 解决方案：用于内燃机的控制装置适用于控制具有涡轮增压器，低压EGR装置和高压EGR装置的系统。 具体地，在使用高压EGR装置的情况下，EGR分配/调整装置获取第一能量损失，在使用低压EGR装置的情况下获得第二能量损失，并且调整由高压再循环的EGR气体的分布 EGR装置和由低压EGR装置再循环的EGR气体，基于第一能量损失和第二能量损失。 由此抑制内燃机的能量损失的恶化，抑制燃料经济性的劣化。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009197706A
公开(公告)日：2009-09-03
申请号：JP2008041135
申请日：2008-02-22
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ISHIYAMA SHINOBU , TOMOTA AKITOSHI , ONO TOMOYUKI , NAKATANI KOICHIRO , OGO TOMOYOSHI , ITO KATSUHIRO , NAKAGAWA MASAYOSHI , HISATAKA YOSHIHIRO
CPC classification number: Y02T10/144 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of sufficiently reducing emission of white smoke at the cold starting.
SOLUTION: A turbocharger 22 has a variable nozzle 22c. An exhaust throttle valve 24 is provided in an exhaust passage 20 on the downstream side of a turbine of the turbocharger 22. After it is determined that the initial explosion in a diesel engine 10 occurs, each opening of the variable nozzle 22c and the exhaust throttle valve 24 is set to be the opening on the open side compared with that before the occurrence of the initial explosion. Further, the opening of the variable nozzle 22c after the diesel engine 10 reaches the state of complete explosion is set to be the opening on the closing side compared with the opening before reaching the state of complete explosion.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供能够充分减少冷起动时白烟排放的内燃机的控制装置。 解决方案：涡轮增压器22具有可变喷嘴22c。 排气节流阀24设置在涡轮增压器22的涡轮的下游侧的排气通路20中。在确定柴油发动机10中的初始爆炸发生之后，可变喷嘴22c的每个开口和排气节流阀 与初始爆炸发生前相比，阀24被设定为开放侧的开口。 此外，在达到完全爆炸的状态之后，柴油发动机10达到完全爆炸的状态之后的可变喷嘴22c的打开被设定为在达到完全爆炸的状态之前与开启相比在关闭侧的开口。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2009191745A
公开(公告)日：2009-08-27
申请号：JP2008033568
申请日：2008-02-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ISHIYAMA SHINOBU , TOMOTA AKITOSHI , ONO TOMOYUKI , NAKATANI KOICHIRO , OGO TOMOYOSHI , ITO KATSUHIRO , NAKAGAWA MASAYOSHI , HISATAKA YOSHIHIRO
IPC: F02D13/02 , F01N3/20 , F01N3/24 , F02B37/00 , F02B37/12 , F02B37/24 , F02D9/04 , F02D23/00 , F02D41/06 , F02D43/00
CPC classification number: Y02T10/144 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To satisfactorily reduce emission of white smoke during a cold engine state in a control device for an internal combustion engine. SOLUTION: A sufficient valve overlap period is set while increasing back pressure by closing an exhaust throttle valve 24 and a variable nozzle 22c during start of a diesel engine 10. The valve overlap period is set to a period shorter than that during start after completion of start (after complete explosion determination). The exhaust throttle valve 24 is opened and opening of the variable nozzle 22c is reduced after the completion of start. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：为了在内燃机的控制装置中在冷发动机状态期间令人满意地减少白烟的排放。 解决方案：通过在柴油发动机10起动期间关闭排气节流阀24和可变喷嘴22c来增加背压，设定足够的阀重叠周期。阀重叠周期设定为比启动期间更短的时间段 完成启动后（完全爆炸确定后）。 排气节流阀24打开，可变喷嘴22c的开度在启动完成之后减小。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009191674A
公开(公告)日：2009-08-27
申请号：JP2008031565
申请日：2008-02-13
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ONO TOMOYUKI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , NAKATANI KOICHIRO , OGO TOMOYOSHI , ITO KATSUHIRO
CPC classification number: Y02T10/125
Abstract: PROBLEM TO BE SOLVED: To provide a technology for improving combustion, and improving use durability, in a combustion chamber structure.
SOLUTION: A top surface of a piston 3 except for a cavity 31 is flatly formed, and a clearance is arranged between the top surface of the piston 3 when the piston 3 is positioned in the top dead center and a valve under surface of an intake valve 9 and an exhaust valve 10 maximally lifted to the piston 3 side, and the inner bottom of the cavity 31 is formed of a conical surface 32 having the center most protruded to the cylinder head 4 side and a peripheral concave surface 33 recessed to the opposite side of a cylinder head 4 from the peripheral edge of the conical surface 32. A fuel spray F injected from a fuel injection nozzle 13 collides with the conical surface 32 when the piston 3 is positioned in the top dead center, and a collision position of the fuel spray F injected from the fuel injection nozzle 13 passes through a boundary 34 between the conical surface 32 and the peripheral concave surface 33 when the piston 3 moves before and after the top dead center.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种在燃烧室结构中提高燃烧和提高使用耐久性的技术。 解决方案：除了空腔31之外，活塞3的顶面平坦地形成，并且当活塞3位于上止点中时，在活塞3的顶表面之间设置有间隙，并且阀下表面 进气阀9和排气阀10最大程度地升高到活塞3侧，空腔31的内底由具有最突出于气缸盖4侧的中心的圆锥面32和周向凹面33 从圆锥形表面32的周缘凹入到气缸盖4的相反侧。当活塞3定位在上止点时，从燃料喷嘴13喷射的燃料喷雾F与锥形表面32碰撞，以及 当活塞3在上死点前后移动时，从燃料喷射喷嘴13喷射的燃料喷雾F的碰撞位置通过圆锥面32与周面凹面33之间的边界34。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009091917A
公开(公告)日：2009-04-30
申请号：JP2007261146
申请日：2007-10-04
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OKI HISASHI , YAMADA TOMOUMI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , OGO TOMOYOSHI , NAKAGAWA MASAYOSHI , ITO KATSUHIRO , HISATAKA YOSHIHIRO
CPC classification number: Y02T10/121 , Y02T10/146
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine control device exerting sufficient effects of filling rate improving control using exhaust pressure pulsation in an internal combustion engine with an EGR passage and an EGR cooler.
SOLUTION: When a difference between intake manifold pressure detected by an intake pressure sensor 68 and exhaust manifold pressure at the valley of pulsation detected by an exhaust pressure sensor 70 is smaller than a predetermined value, a flow path change-over valve 48 provided on the upstream side of the EGR cooler 42 is changed over into a shut-off condition to shut off the EGR passage 40 and the EGR cooler 42 from an exhaust manifold 20, thereby reducing an exhaust system capacity. As a result, the amplitude of the pressure pulsation of the exhaust manifold is increased to increase the difference between the intake manifold pressure and the exhaust manifold pressure for a valve overlapping period. This sufficiently develops scavenging effects and sufficiently improves a filling rate (an air amount).
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种内燃机控制装置，其利用EGR通道和EGR冷却器在内燃机中利用排气压力脉动施加足够的填充率改进控制效果。 解决方案：当由进气压力传感器68检测的进气歧管压力与由排气压力传感器70检测到的脉动谷值处的排气歧管压力之间的差小于预定值时，流路切换阀48 设置在EGR冷却器42的上游侧的截止状态被切换为从排气歧管20切断EGR通路40和EGR冷却器42，从而降低排气系统的容量。 结果，增加排气歧管的压力脉动的幅度，以增加阀重叠期间的进气歧管压力和排气歧管压力之间的差。 这充分发挥清除效果，充分提高填充率（空气量）。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008309030A
公开(公告)日：2008-12-25
申请号：JP2007156433
申请日：2007-06-13
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , FURUHASHI MICHIO , ONO TOMOYUKI , OGO TOMOYOSHI , HISATAKA YOSHIHIRO
CPC classification number: F02D21/08 , F02B29/04 , F02D13/0203 , F02D41/0062 , F02D41/0072 , F02D2041/001 , F02M26/01 , F02M26/07 , Y02T10/18 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide technology inhibiting deviation of intake air temperature from target temperature to the minimum and making an EGR rate satisfactorily following a target value in an exhaust gas recirculation device for an internal combustion engine. SOLUTION: This exhaust gas recirculation device is provided with a turbocharger, a low pressure EGR passage taking part of exhaust gas from an exhaust passage at a downstream of a turbine as low pressure EGR gas and re-circulating the low pressure EGR gas to an intake air passage at an upstream of a compressor, a high pressure EGR passage taking part of exhaust gas from an exhaust passage at an upstream of the turbine as high pressure EGR gas and re-circulating the high pressure EGR gas to an intake air passage at a downstream of the compressor, and a valve timing changing means capable of adjusting internal EGR gas. Feedback control of EGR rate indicating rate of EGR gas in intake air is performed by adjustment of internal EGR gas quantity with using the valve timing changing means when quantity of high pressure EGR gas circulating in the high pressure EGR passage is not greater than first predetermined quantity. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供抑制进气温度与目标温度的偏差达到最小值的技术，并使EGR率满足内燃机的废气再循环装置中的目标值。 解决方案：该排气再循环装置设置有涡轮增压器，低压EGR通路，其将来自涡轮机下游的排气通道的一部分排气作为低压EGR气体并重新循环低压EGR气体 到压缩机上游的进气通道，高压EGR通道，其将来自涡轮机上游的排气通道的一部分排气作为高压EGR气体，并将高压EGR气体再循环到进气口 在压缩机的下游通道，以及能够调节内部EGR气体的气门正时改变装置。 当在高压EGR通道中循环的高压EGR气体的量不大于第一预定量时，通过利用气门正时改变装置调节内部EGR气体量来进行进气中EGR气体的EGR率指示率的反馈控制 。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008223722A
公开(公告)日：2008-09-25
申请号：JP2007066720
申请日：2007-03-15
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： FURUHASHI MICHIO , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , OGO TOMOYOSHI , HISATAKA YOSHIHIRO
IPC: F02D21/08 , F01N3/20 , F01N3/24 , F01N3/36 , F02D13/02 , F02D23/00 , F02D41/02 , F02D41/38 , F02D43/00 , F02M25/07
CPC classification number: Y02T10/144 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To provide technology for inhibiting a change in oxygen concentration of exhaust gas recirculated from affecting power output of an internal combustion engine in the internal combustion engine performing EGR for recirculating a part of exhaust gas passing through an exhaust system to an intake system.
SOLUTION: The internal combustion engine has a first pilot injection and a second pilot injection in addition to a main injection during combustion and has a low-pressure EGR means for recirculating the exhaust gas passing through the exhaust system downstream of a turbine of a supercharger to the intake system upstream of a compressor of the supercharger. A control device of the internal combustion engine performs increasing control of an injection quantity and/or advancing control of injection timing of the second pilot injection according to an oxygen concentration of the exhaust gas recirculated by the low-pressure EGR means during a rich spike process.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供用于抑制在影响内燃机中的内燃机的内燃机的输出功率再循环的废气的氧浓度变化的技术，所述内燃机进行EGR，以使通过排气系统的废气的一部分再循环 进入系统。 解决方案：除了在燃烧期间的主喷射之外，内燃机还具有第一引燃喷射和第二引燃喷射，并且具有低压EGR装置，用于将通过排气系统的废气再循环到涡轮机的下游 在增压器的压缩机上游的进气系统的增压器。 内燃机的控制装置根据由低压EGR装置再循环的废气的氧浓度，在浓穗过程中执行对喷射量的控制和/或进行第二引燃喷射的喷射正时的控制 。 版权所有（C）2008，JPO＆INPIT
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