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公开(公告)号：JP2005009477A
公开(公告)日：2005-01-13
申请号：JP2003418590
申请日：2003-12-16
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKASAKA YUKIHIRO , HEIKO KEIZO , KADOOKA TAKU , HASHIZUME AKIRA , KANAI HIROSHI , FUWA NAOHIDE , KAGA TOMOYUKI
CPC classification number: F02D13/0226 , F02D13/0207 , F02D13/0261 , F02D13/0265 , F02D41/0002 , F02D41/006 , F02D41/1497 , F02D2041/001 , F02D2200/0406 , F02M26/01 , Y02T10/18 , Y02T10/42
Abstract: PROBLEM TO BE SOLVED: To provide a controller for a multi-cylinder internal combustion engine with variable valve opening characteristics, capable of reducing torque differences among cylinders while preventing emissions from worsening. SOLUTION: The controller for the multi-cylinder internal combustion engine 1 is provided which has a valve opening characteristic control means 9 to control the valve opening characteristics of at least either an intake valve 2 or an exhaust valve 3 and which estimates differences in the amount of intake among the cylinders to restrict the control range of the valve opening characteristic according to the estimated differences in the amount of intake. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供具有可变开阀特性的多缸内燃机的控制器，能够减少气缸之间的扭矩差异，同时防止排放恶化。 解决方案：提供了一种用于多缸内燃机1的控制器，其具有阀开启特性控制装置9，以控制进气门2或排气门3中的至少一个的阀开启特性，并且估计差异 在气缸中的进气量，根据估计的进气量差异来限制阀打开特性的控制范围。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004036461A
公开(公告)日：2004-02-05
申请号：JP2002193728
申请日：2002-07-02
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SONODA YUKIHIRO , MIYASHITA SHIGEKI , KADOOKA TAKU
CPC classification number: Y02T10/125
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder injection type spark ignition internal combustion engine capable of sufficiently increasing the temperature of exhaust gas without requiring complicated fuel injection control.
SOLUTION: The cylinder injection type spark ignition internal combustion engine comprises a fuel injection valve 7 for injecting a fuel in the form of developing penetrating force stronger than that of conical fuel spray and an ignition plug 6. The fuel is injected in a compression stroke by the fuel injection valve to form a combustible mixture near the ignition plug for stratified charge combustion. When the temperature of exhaust gas is increased, the fuel is injected near the top dead center of compression by the fuel injection valve and the ignition timing of the ignition plug is set at the middle of an expansion stroke.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2004036430A
公开(公告)日：2004-02-05
申请号：JP2002192481
申请日：2002-07-01
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU
CPC classification number: Y02T10/125 , Y02T10/146
Abstract: PROBLEM TO BE SOLVED: To achieve relatively good stratified charge combustion even when inner cylinder temperature is low by a control device for a cylinder injection spark ignition internal combustion engine that facilitates forming of a mass of combustible gas mixture inside a cavity formed on the piston top surface in the latter half of the compression process by injecting fuel inside the cavity and making inside of the cavity a stagnation space using the air intake flow turning inside the cylinder.
SOLUTION: This control device comprises a variable means 9 that can vary strength of the air intake flow, and when the piston temperature is below a predetermined temperature, strength of the air intake flow is weakened by the variable means.
COPYRIGHT: (C)2004,JPO-
24.发明专利Exhaust emission control device for spark ignition type internal combustion engine 审中-公开用于火花点火型内燃机的排气控制装置
公开(公告)号：JP2014145271A
公开(公告)日：2014-08-14
申请号：JP2013013335
申请日：2013-01-28
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OTSUKA TAKAYUKI , KADOOKA TAKU , KOBASHI NORIYASU , YOSHIDA TAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for a spark ignition type internal combustion engine, in an exhaust passage of which the exhaust emission control device including a particulate filter is arranged, for suppressing the excessive temperature rise of the particulate filter during decelerating operation after executing an increase in the amount of fuel to suppress the thermal deterioration of exhaust system components.SOLUTION: To solve the above issue, the exhaust emission control device for the spark ignition type internal combustion engine, in the exhaust passage of which the exhaust emission control device including the particulate filter is arranged, reduces the concentration of oxygen in exhaust gas flowing into the particulate filter during decelerating fuel-cut operation of the internal combustion engine when a time (an integrated time) is not shorter than a predetermined time for executing an increase in the amount of fuel to suppress the thermal deterioration of the exhaust system components, thereby reducing the oxidation speed of PMs trapped by the particulate filter.
Abstract translation: 要解决的问题：为了提供一种用于火花点火式内燃机的废气排放控制装置，在排气通道中布置有包括颗粒过滤器的废气排放控制装置，用于抑制微粒过滤器过度升温 在执行燃料量的增加以减少排气系统部件的热劣化之后，减速操作。解决方案：为了解决上述问题，用于火花点火式内燃机的废气排放控制装置在其排气通道中 布置有包括微粒过滤器的废气排放控制装置，当时间（积分时间）不短于预定时间时，减少内燃机的减速操作期间流入微粒过滤器的废气中的氧浓度 用于执行燃料量的增加以抑制热量 排气系统部件的劣化，从而降低由颗粒过滤器捕获的PM的氧化速度。
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公开(公告)号：JP2013185504A
公开(公告)日：2013-09-19
申请号：JP2012051602
申请日：2012-03-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU
CPC classification number: Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine which can suppress the deterioration of the estimated accuracy of an exhaust system temperature in the internal combustion engine with a supercharger, in the control device for the internal combustion engine.SOLUTION: Fuel amount increase control increases a fuel jetting quantity of an engine 10 more than a normal jetting quantity to cool and protect exhaust system components by the vaporization latent heat of unburnt fuel contained in the exhaust. In the fuel amount increase control, an ECU 50 estimates a primary delay temperature Tof the exhaust system component and a fuel quantity added to the normal jetting quantity and jetted is calculated based on deviation ΔT between the primary delay temperature Tand a set temperature. In the estimation of the primary delay temperature T, the emission volume ratio of exhaust (W/G passing flow) through an exhaust by-pass passage 30 to the exhaust (turbine passing flow) through a turbine 20b is considered. As a result, the exhaust system component temperature is highly precisely estimated.
Abstract translation: 要解决的问题：提供一种用于内燃机的控制装置的内燃机的控制装置，其可以抑制内燃机中的排气系统温度的估计精度的劣化，内燃机的控制装置。增压器的控制装置。 燃料量增加控制使发动机10的燃料喷射量比正常喷射量增加，以通过排气中包含的未燃烧燃料的蒸发潜热来冷却和保护排气系统部件。 在燃料量增加控制中，ECU50基于主要延迟温度T和设定温度之间的偏差＆Dgr; T来估计排气系统部件的一次延迟温度Tof和添加到正常喷射量的喷射量的燃料量。 在估计主要延迟温度T时，考虑通过排气旁通通道30的排气（W / G通过流量）通过涡轮机20b的排气（涡轮机通过流量）的排放体积比。 因此，高精度地估计排气系统部件的温度。
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Patent Agency Ranking
公开(公告)号：JP2012233462A
公开(公告)日：2012-11-29
申请号：JP2011104415
申请日：2011-05-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SATO SATORU , KADOOKA TAKU
CPC classification number: Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To reliably protect a sensor device arranged downstream of a turbine from making contact with condensed water in an internal combustion engine with a turbo supercharger.SOLUTION: A turbine housing 30 is provided therein with: a turbine 32; and a water reservoir 70 located at a lower side of outlets 32a and 36a of a bypass passage 36, and for reserving condensed water. The water reservoir 70 is formed at a position that allows the water reservoir to be invisible from the outlet 32 of the turbine 32 when a WGV 38 is open. Then, when a damage by getting wet in which the condensed water reserved in the water reservoir 70 is moved to a lower side due to an exhaust flow from the turbine 32 and makes contact with an air-fuel ratio sensor 50, is likely to occur, ECU opens the WGV 38 to cut off communication between the outlet 32a of the turbine 32 and the water reservoir 70, thus resulting in a good balance between a response (output performance) of an engine and the durability of the air-fuel ratio sensor 50.
Abstract translation: 要解决的问题：为了可靠地保护布置在涡轮机下游的传感器装置与具有涡轮增压器的内燃机中的冷凝水接触。 解决方案：涡轮机壳体30中设置有：涡轮机32; 以及位于旁路通路36的出口32a，36a的下侧的储水器70，用于保留冷凝水。 储水器70形成在允许储水器在WGV 38打开时从涡轮机32的出口32不可见的位置。 然后，当由于来自涡轮32的排气流动而与储油室70中保留的冷凝水移动到下侧并与空燃比传感器50接触而导致的湿气损伤可能发生 ECU打开WGV 38以切断涡轮32的出口32a与储水器70之间的连通，从而在发动机的响应（输出性能）与空燃比传感器的耐久性之间达到良好的平衡 50.版权所有（C）2013，JPO＆INPIT
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27.发明专利
公开(公告)号：JP2012137050A
公开(公告)日：2012-07-19
申请号：JP2010290908
申请日：2010-12-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU
CPC classification number: Y02T10/144 , Y02T10/40
Abstract: PROBLEM TO BE SOLVED: To control the influence of mixing in a supercharger turbine to improve detection accuracy, and to prevent detection error.SOLUTION: If a wastegate valve 27 is opened, abnormality of inter-cylinder air-fuel ratio dispersion is detected based on a detection value of a pre-catalyst sensor 17, and meanwhile if the wastegate valve 27 is closed, abnormality of inter-cylinder air-fuel ratio dispersion is detected based on a detection value of a post-catalyst sensor 18. In the detection based on the pre-catalyst sensor 17, exhaust gas which passes through a west gate passage 26 is measured, so that air-fuel ratio leveling due to influence from an exhaust turbine 25b of a super charger 25 is controlled. In the detection based on the post-catalyst sensor 18, if abnormality that air-fuel ratio becomes rich occurs in some cylinders, sensor output is more on the lean side than that at normal time with increase of hydrogen during exhaustion. Thereby, detection is continuously performed.
Abstract translation: 要解决的问题：为了控制增压器涡轮机中的混合的影响，提高检测精度，并防止检测误差。 解决方案：如果废气门27打开，则基于催化剂前传感器17的检测值来检测缸间空燃比分散的异常，同时如果废气门27关闭，则异常 基于催化剂后传感器18的检测值来检测缸间空燃比分散。在基于催化剂前传感器17的检测中，测量通过西门通道26的排气，使得 控制由超级充电器25的排气涡轮25b的影响引起的空燃比调平。 在基于后催化剂传感器18的检测中，如果在一些气缸中发生空燃比变大的异常，则在排气期间随着氢气的增加，传感器输出比正常时更多。 由此，连续进行检测。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2012002148A
公开(公告)日：2012-01-05
申请号：JP2010138413
申请日：2010-06-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SATO SATORU , IRISAWA YASUYUKI , MITANI SHINICHI , KADOOKA TAKU , URANO SHIGEYUKI , YOSHIZAKI SATOSHI
CPC classification number: F02D19/0665 , F02D19/0605 , F02D19/0628 , F02D19/0636 , F02D19/0655 , F02D41/003 , F02M31/186 , Y02T10/126 , Y02T10/36
Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of improving starting performance and emission by suppressing air-fuel ratio deviation during supplying vaporized fuel, in the internal combustion engine where the vaporized fuel is supplied into cylinders in statuses that fuel is hardly vaporized at a low-temperature start or the like.SOLUTION: The control device for the internal combustion engine includes a vaporized fuel tank 38 for storing vaporized fuel, and a normally-closed vaporized fuel supply valve 42 for opening and closing a connection part between the vaporized fuel tank 38 and a surge tank 20. In a state that the vaporized fuel supply valve 42 is closed during operation, fuel is injected into the tank to produce the vaporized fuel. At starting the engine, the vaporized fuel supply valve 42 is opened to supply the vaporized fuel stored in the tank into the surge tank 20. During producing the vaporized fuel, the air-fuel ratio of mixture in the vaporized fuel supply valve 42 is estimated, and the production of the vaporized fuel is continued until the air-fuel ratio is almost zero.
Abstract translation: 要解决的问题：提供一种能够提供起动性能和排放的内燃机的控制装置，该内燃机通过在供给汽化燃料时抑制空燃比偏差，而在内燃机中将汽化燃料供给到气缸 在低温起动等时燃料几乎不蒸发的状态。 解决方案：用于内燃机的控制装置包括用于储存汽化燃料的汽化燃料箱38和用于打开和关闭蒸发的燃料箱38和喘振之间的连接部分的常闭汽化燃料供应阀42 在操作期间汽化燃料供给阀42关闭的状态下，向罐内注入燃料，生成汽化燃料。 在启动发动机时，打开汽化的燃料供应阀42以将存储在罐中的蒸发燃料供应到缓冲罐20中。在生产汽化燃料期间，估计汽化燃料供应阀42中混合物的空燃比 ，并且继续生产汽化燃料，直到空燃比几乎为零。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011236815A
公开(公告)日：2011-11-24
申请号：JP2010109111
申请日：2010-05-11
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU , IRISAWA YASUYUKI , MITANI SHINICHI , YOSHIZAKI SATOSHI , SATO SATORU , URANO SHIGEYUKI
Abstract: PROBLEM TO BE SOLVED: To determine with simple structure whether a supply condition of vaporized fuel at starting failure is in a short supply or an excess supply, in a control device for supplying the vaporized fuel into a cylinder in a condition that fuel is difficult to vaporize at such as a low-temperature start.SOLUTION: The device has: a vaporized-fuel tank 38 for storing the vaporized fuel; and a normally-closed vaporized-fuel supply valve 42 which opens/closes a connection between the vaporized-fuel tank 38 and a surge tank 20. The device: injects fuel into the tank while the vaporized-fuel supply valve 42 is closed during an operation to produce the vaporized fuel; opens the vaporized-fuel supply valve 42 when an engine starts; and supplies the vaporized fuel stored in the tank to the surge tank 20. If an engine speed is not increased normally when the engine starts, a cylinder injection of fuel is further carried out in the compression stroke. The device, then, determines that the vaporized fuel is in the short supply when a behavior of the engine speed after injection is to be a predetermined increasing behavior, while that it is in the excess supply when not to be the predetermined increasing behavior.
Abstract translation: 要解决的问题：为了简单的结构确定起动故障时汽化燃料的供应状态是否供应不足或供应过剩，在用于将汽化燃料供应到汽缸中的控制装置中，燃料 在低温起动时难以汽化。 解决方案：该装置具有：用于储存汽化燃料的汽化燃料箱38; 以及常闭气化燃料供给阀42，其打开/关闭蒸发燃料箱38和缓冲罐20之间的连接。该装置：在蒸发燃料供给阀42关闭期间将燃料喷射到罐中 操作以产生蒸发的燃料; 当发动机起动时打开蒸发燃料供给阀42; 并且将储存在罐中的汽化燃料供给到缓冲罐20.如果在发动机起动时发动机转速没有正常增加，则在压缩冲程中进一步进行燃料的汽缸喷射。 然后，当喷射后的发动机速度的行为为预定的增加行为时，该装置确定汽化的燃料处于短路状态，而当不是预定的增加行为时，其处于过量供应。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011202539A
公开(公告)日：2011-10-13
申请号：JP2010068658
申请日：2010-03-24
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YOSHIZAKI SATOSHI , MITANI SHINICHI , KADOOKA TAKU , SATO SATORU , URANO SHIGEYUKI , IRISAWA YASUYUKI
CPC classification number: Y02T10/123 , Y02T10/36
Abstract: PROBLEM TO BE SOLVED: To improve the startability of an internal combustion engine by quickly supplying a gasified fuel into cylinders even during a cold startup.SOLUTION: The engine 10 includes a normal fuel tank 32, a gasified fuel tank 36, an in-tank injection valve 38, a gasified fuel supply valve 40, and others. An ECU 60 operates to supply the gasified fuel stored in the gasified fuel tank 36 during the operation of the engine to a surge tank 20 during the startup. When the gasified fuel is short during the startup, after a negative pressure is generated in the gasified fuel tank 36 utilizing cranking, the in-tank injection valve 38 is driven to newly generate gasified fuel. The gasified fuel is supplied to the surge tank 20, and the engine is re-started. Thereby, during the startup, the gasified fuel stored beforehand can be immediately supplied into the cylinders, and even if the gasified fuel is short, new gasified fuel can be quickly generated, and the engine can be smoothly re-started.
Abstract translation: 要解决的问题：即使在冷启动期间，通过将气化燃料快速供给到气缸中来提高内燃机的启动性。解决方案：发动机10包括正常燃料箱32，气化燃料箱36，内箱 喷射阀38，气化燃料供给阀40等。 在启动期间，ECU60操作以将发动机操作期间储存在气化燃料箱36中的气化燃料供应到缓冲箱20。 在起动时气化燃料短时，在气化燃料箱36利用起动作用产生负压后，驱动槽内喷射阀38，新产生气化燃料。 将气化燃料供给到缓冲罐20，再次起动发动机。 因此，在起动时，能够将预先存储的气化燃料立即供给到气缸中，即使气化燃料短，也能够快速地产生新的气化燃料，能够平稳地重新起动发动机。
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