公开(公告)号：JP2007327399A

公开(公告)日：2007-12-20

申请号：JP2006158726

申请日：2006-06-07

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： KADOOKA TAKU ,  NAKASAKA YUKIHIRO ,  HOSOKAWA YOHEI ,  KAWAI TAKASHI

IPC: F02D41/34 ,  F02D13/02 ,  F02D43/00

CPC classification number: F02D41/062 ,  F02D41/009 ,  F02D41/3094 ,  F02N19/004 ,  F02N2200/021

Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of suitably using an effect by delayed opening of an intake valve in starting of the internal combustion engine. SOLUTION: Before start of cranking, a piston stop position of each cylinder is acquired (step 100). Delayed closing of the intake valve is set on the first compression cylinder and delayed opening of the intake valve is set on the other cylinders (step 104). When the piston stop position of the first injection cylinder among the other cylinders is before the intake TDC, a fuel injection mode is set to be port injection (step 108). When the piston stop position of the first injection cylinder is after the intake TDC, the fuel injection mode is set to the cylinder injection (step 110). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种内燃机的控制装置，其能够通过在内燃机起动时延迟打开进气门来适当地使用效果。 解决方案：在开始起动之前，获取每个气缸的活塞停止位置（步骤100）。 进气门的延迟关闭设定在第一压缩气缸上，并且进气门的延迟打开被设定在其它气缸上（步骤104）。 当其他气缸中的第一注射气缸的活塞停止位置在进气TDC之前时，将燃料喷射模式设定为端口喷射（步骤108）。 当第一注射缸的活塞停止位置在进气TDC之后时，燃料喷射模式被设定为气缸喷射（步骤110）。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2005194936A

公开(公告)日：2005-07-21

申请号：JP2004002235

申请日：2004-01-07

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： MUTO HARUFUMI ,  HEIKO KEIZO ,  KADOOKA TAKU ,  KASASHIMA KENJI ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02D41/02 ,  F02D41/04

Abstract: PROBLEM TO BE SOLVED: To provide a state quantity estimating device for accurately estimating a state quantity such as intake pressure concerning intake air of an internal combustion engine, in view of volumetric change of a throttle valve downstream intake pipe according to the intake pressure.
SOLUTION: This device sequentially calculates the intake pressure Pm(k) and an intake temperature Tm(k) in the throttle valve downstream intake pipe, by applying a mass conservation law and an energy conservation law concerning the air in the intake pipe. The volume Vm(k) of the throttle valve downstream intake pipe used in the formula (a step 1025) describing the mass conservation law and energy conservation law is sequentially calculated by the formula (a step 1015) in view of contraction of the intake pipe caused by pressure difference (Pa-Pm) between the inside and outside of the intake pipe and a cooling water temperature THW (i.e. an intake pipe body temperature), where the Pa is atmospheric pressure. Since the volumetric change of the throttle valve downstream intake pipe is considered, the intake pressure Pm(k) and the intake temperature Tm(k) (i.e. a predicted intake air amount KLfwd(k)) can be estimated with high accuracy.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种状态量估计装置，用于根据进气口的下游进气管的体积变化，精确地估计诸如内燃机的进气的进气压的状态量 压力。 解决方案：该装置通过应用质量守恒定律和关于进气管中的空气的能量守恒定律，顺序地计算节流阀下游进气管中的进气压力Pm（k）和进气温度Tm（k） 。 考虑到进气管的收缩，通过公式（步骤1015），依次计算描述质量守恒定律和能量守恒定律的公式（步骤1025）中使用的节流阀下游进气管的体积Vm（k） 由进气管内外部的压力差（Pa-Pm）和冷却水温度THW（即进气管体温度）导致，Pa是大气压。 考虑到节气门下游进气管的体积变化，可以高精度地推定进气压力Pm（k）和进气温度Tm（k）（即，预测进气量KLfwd（k））。 版权所有（C）2005，JPO＆NCIPI

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

IPC: F01L13/00 ,  F02D13/02 ,  F02D41/00 ,  F02D41/14 ,  F02D45/00 ,  F02M25/07

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

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

IPC: F02P5/15 ,  F01N3/08 ,  F01N3/20 ,  F02B23/10 ,  F02D41/06 ,  F02D43/00 ,  F02M61/18

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

IPC: F02B17/00 ,  F02B23/08 ,  F02B23/10 ,  F02B31/00 ,  F02D41/02 ,  F02D43/00 ,  F02D45/00

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

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

IPC: F02D45/00 ,  F01N3/02 ,  F01N3/023

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。

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

IPC: F02D45/00 ,  F02D23/02 ,  F02D41/04

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。

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

IPC: F02B37/12 ,  F02B37/18

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

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

IPC: F02D45/00 ,  F02B37/18 ,  F02D41/22

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

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

IPC: F02D41/06 ,  F02D19/02 ,  F02D19/08 ,  F02D41/02 ,  F02D41/34 ,  F02D45/00

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