公开(公告)号：JP2010174647A

公开(公告)日：2010-08-12

申请号：JP2009015375

申请日：2009-01-27

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

Inventor： ONO TOMOYUKI

IPC: F02M25/07 ,  F02F1/00

CPC classification number: Y02T10/121

Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine with a more compact EGR device than ever before, allowing quick warming-up in cold-start of an engine.
SOLUTION: The engine includes the EGR device for taking out part of exhaust from an exhaust system of the engine as EGR gas to recirculate it in an intake system. In the EGR device, an EGR passage recirculating the EGR gas therein is formed between a cylinder bore wall face and a cylinder block outer wall face, and can exchange heat between the EGR gas flowing therein and the cylinder bore wall face, and includes an internal passage covering the cylinder wall face while approaching the cylinder bore wall face and being extended in an axial direction of a cylinder bore.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供具有比以往更紧凑的EGR装置的内燃机，允许在发动机的冷启动中快速预热。 解决方案：发动机包括EGR装置，用于从发动机的排气系统中取出一部分排气作为EGR气体，以在进气系统中再循环。 在EGR装置中，在气缸孔壁面与气缸体外壁面之间形成有再循环EGR气体的EGR通路，能够在流入其内的EGR气体与气缸孔壁面之间进行热交换， 通过在气缸孔壁面接近并在气缸孔的轴向方向上延伸的情况下覆盖气缸壁面。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010084708A

公开(公告)日：2010-04-15

申请号：JP2008256733

申请日：2008-10-01

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

Inventor： TOMOTA AKITOSHI ,  ISHIYAMA SHINOBU ,  OGO TOMOYOSHI ,  ITO KATSUHIRO ,  YANASE YOSHINORI ,  IWATA KAZUYASU ,  ONO TOMOYUKI

IPC: F01N13/10 ,  F01N13/08 ,  F01N13/14 ,  F02F1/42

Abstract: PROBLEM TO BE SOLVED: To provide a technology that suppresses exhaust gas from being cooled in an exhaust collecting space where the exhaust gas discharged from exhaust ports is collected in an exhaust system for an internal combustion engine. SOLUTION: This exhaust system includes a recessed part 9 having the opening 51 of a plurality of exhaust ports 5 formed on the inner face thereof in a cylinder head 3, and a cover part 11 forming an exhaust gas collecting space 12 for collecting exhaust gas between itself and the recess 9 in an exhaust manifold 10 connected to the cylinder head 3. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种抑制废气在排气收集空间中被冷却的技术，其中从排气口排出的废气被收集在用于内燃机的排气系统中。 解决方案：该排气系统包括凹部9，该凹部9具有形成在气缸盖3的内表面上的多个排气口5的开口51和形成用于收集的排气收集空间12的盖部11 废气自身与连接到气缸盖3的排气歧管10中的凹部9之间。排气：（C）2010，JPO＆INPIT

公开(公告)号：JP2010031704A

公开(公告)日：2010-02-12

申请号：JP2008192857

申请日：2008-07-25

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

Inventor： NAKATANI KOICHIRO ,  TOMOTA AKITOSHI ,  ISHIYAMA SHINOBU ,  ONO TOMOYUKI ,  OGO TOMOYOSHI ,  ITO KATSUHIRO

IPC: F02D21/08 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F02D41/38 ,  F02D43/00 ,  F02D45/00 ,  F02M25/07

CPC classification number: Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide a control device for an engine capable of inhibiting discharge of smoke and maintaining low temperature combustion using an EGR to a higher load when post injection executed in a timing range in which injected fuel can burn in a cylinder is used.
SOLUTION: An ECU 1A includes a post injection control means executing post injection in the range in which the injected fuel can burn in the cylinder and an EGR rate control means controlling an EGR valve 43 to increase EGR rate as load of the engine rises when the post injection control means executes post injection, in an engine 50 including a NOx storage reduction type catalyst 22 in an exhaust system 20, an EGR passage 41 re-circulating exhaust gas to an intake system 10 from the exhaust system 20, and the EGR valve 43 changing opening of the EGR passage 41.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于能够抑制烟雾排放的发动机的控制装置，并且在喷射燃料可燃烧的定时范围内执行后喷射时，使用EGR将其保持在低温燃烧 使用气缸。 解决方案：ECU1A包括在喷射燃料可以在气缸中燃烧的范围内执行后喷射的后喷射控制装置，以及控制EGR阀43的EGR率控制装置，以增加作为发动机负荷的EGR率 在排气系统20中包括NOx储存还原型催化剂22的发动机50中，后排气喷射控制装置执行后喷射时，上升，EGR通路41将废气从排气系统20再循环到进气系统10，以及 EGR阀43改变EGR通道41的打开。版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009221930A

公开(公告)日：2009-10-01

申请号：JP2008066376

申请日：2008-03-14

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

Inventor： NAKATANI KOICHIRO ,  TOMOTA AKITOSHI ,  ISHIYAMA SHINOBU ,  ONO TOMOYUKI ,  OGO TOMOYOSHI ,  ITO KATSUHIRO

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/08 ,  F01N3/24 ,  F02D13/02 ,  F02D23/00 ,  F02D41/04 ,  F02D43/00

CPC classification number: Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control system of an internal combustion engine, supercharging intake air by utilizing energy of exhaust gas, the system which prevents an unnecessary increase of an intake air amount when reducing an air-fuel ratio of gas discharged from the internal combustion engine. SOLUTION: In the exhaust emission control system of the internal combustion engine including a supercharger in which the intake air is supercharged by utilizing the energy of the exhaust gas, when a treatment (rich treatment) for reducing the air-fuel ratio of the gas discharged from the internal combustion engine to a target rich air-fuel ratio equal to or smaller than a theoretical air-fuel ratio, is performed, an increase of the exhaust gas energy converted to kinetic energy of the centrifugal supercharger is prevented by retarding a valve opening timing of an exhaust valve. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供内燃机的废气排放控制系统，通过利用废气的能量来增加吸入空气，该系统防止在降低空燃比时不必要地增加进气量 从内燃机排出的气体。 解决方案：在包括通过利用废气的能量进气进气进气的增压器的内燃机的废气排放控制系统中，当用于降低空气燃料比的处理（浓缩处理）时， 从内燃机排出的气体为理论空燃比以下的目标浓空燃比，通过延迟排出来防止转换成离心增压器的动能的废气能量的增加 排气阀的开阀定时。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009156090A

公开(公告)日：2009-07-16

申请号：JP2007332674

申请日：2007-12-25

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

Inventor： ONO TOMOYUKI

IPC: F02D21/08 ,  F02D17/00 ,  F02M25/07

CPC classification number: F02D41/0087 ,  F02D41/0065 ,  Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide a technique in an exhaust recirculating device of an variable cylinder internal combustion engine for obtaining a proper combustion condition relative to an operating cylinder in a cylinder reducing operation while improving fuel consumption by the cylinder reducing operation, and for reducing an NOx amount generated by the operating cylinder in combustion. SOLUTION: This device has a plurality of cylinders, and can execute a cylinder reducing operation for continuing an operation by stopping fuel injection to some of the cylinders and continuing the operation with the rest of the cylinders under a cylinder reducing operation. The device comprises a low-pressure EGR device and a high-pressure EGR device. In the cylinder reducing operation, a ratio of a low-pressure EGR gas amount at an EGR gas amount combined with a low-pressure EGR gas amount recirculated from the low-pressure EGR device supplied to an internal combustion engine and a high-pressure EGR gas amount recirculated from the high-pressure EGR device is made high. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种可变气缸内燃机的排气再循环装置中的技术，用于在通过气缸减少操作改善燃料消耗的同时在气缸减速操作中获得相对于操作气缸的适当的燃烧状态， 并且用于在燃烧中减少由操作气缸产生的NOx量。 解决方案：该装置具有多个气缸，并且可以通过停止向一些气缸的燃料喷射并且在气缸减小操作下继续与其余气缸的操作来执行气缸减速操作以继续操作。 该装置包括低压EGR装置和高压EGR装置。 在气缸减少运转中，EGR气体量的低压EGR气体量与从供给到内燃机的低压EGR装置和高压EGR再循环的低压EGR气体量组合的低压EGR气体量的比例 从高压EGR装置再循环的气体量变高。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009114944A

公开(公告)日：2009-05-28

申请号：JP2007288461

申请日：2007-11-06

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 ,  NAKAGAWA MASAYOSHI ,  HISATAKA YOSHIHIRO

IPC: F02D13/02 ,  F02B37/00 ,  F02B37/013 ,  F02B37/12 ,  F02B37/24 ,  F02D23/00

CPC classification number: F02B37/24 ,  F02B37/004 ,  F02B37/007 ,  F02B37/18 ,  F02D13/02 ,  F02D23/02 ,  F02D41/0007 ,  F02D2041/001 ,  F02D2200/0408 ,  Y02T10/144 ,  Y02T10/18

Abstract: PROBLEM TO BE SOLVED: To suppress the occurrence of a level difference in an air quantity upon a changeover of superchargers in a control device for an internal combustion engine. SOLUTION: This control device for the internal combustion engine brings its actuating state into a small turbo actuating state mainly actuating a small turbo supercharger 16 on a relatively low-rotation and low-load side, and brings it into a large turbo actuating state mainly actuating a large turbo supercharger 18 on a relatively high-rotation and high-load side. In the small turbo actuating state, filling efficiency improvement control for improving a filling efficiency by the use of a scavenging effect can be executed. Before the changeover from the small turbo actuating state to the large one, the speed of start-up of supercharging pressure by the large turbo supercharger 18 is predicted previously. When the start-up thereof is predicted to be gentle, the range of improvement in the filling efficiency by the filling efficiency improvement control is reduced. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了抑制内燃机的控制装置中的增压器的切换时的空气量的差异的发生。 解决方案：用于内燃机的这种控制装置使其致动状态进入一个小的涡轮致动状态，主要在相对低转动和低负荷的一侧驱动小型涡轮增压器16，并将其带入大型涡轮致动器 状态主要在相对高旋转和高负载侧上致动大型涡轮增压器18。 在小涡轮致动状态下，可以执行用于通过使用清扫效果来提高灌装效率的灌装效率提高控制。 在从小型涡轮致动状态切换到较大的涡轮增压器状态之前，预先预测由大涡轮增压器18启动增压压力的速度。 当其启动预测为温和时，通过填充效率改善控制来提高填充效率的范围被减小。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009046996A

公开(公告)日：2009-03-05

申请号：JP2007211008

申请日：2007-08-13

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

Inventor： ISHIYAMA SHINOBU ,  TOMOTA AKITOSHI ,  FURUHASHI MICHIO ,  ONO TOMOYUKI ,  NAKATANI KOICHIRO ,  OGO TOMOYOSHI ,  HISATAKA YOSHIHIRO

IPC: F02D21/08 ,  F02D23/00 ,  F02M25/07

CPC classification number: Y02T10/121 ,  Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide technique capable of restraining troubles such as instability of combustion or increase of HC emission during the transition of the acceleration of an internal combustion engine before completion of warm-up in an EGR system using both an HPLEGR means and an LPLEGR means or switching them in accordance with an operation state of the internal combustion engine.
SOLUTION: This system is provided with the HPLEGR means for introducing a part of exhaust gas on the upstream side of a turbine of a turbocharger to an intake passage on the downstream side of a compressor of the turbocharger, the LPLEGR means for introducing a part of the exhaust gas on the downstream side of the turbine to an intake passage on the upstream side of the compressor, an EGR control means increasing an EGR amount by the LPLEGR means as the load gets higher and increasing the EGR amount by the HPLEGR means as the load gets lower, and a combustion stabilizing means for stabilizing combustion of the fuel in the internal combustion engine when the acceleration transition state is detected in the halfway of the warm-up of the internal combustion engine.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种技术，其能够在使用两个HPLEGR的EGR系统中在完成预热之前在内燃机的加速过渡期间抑制诸如燃烧不稳定性或HC排放增加的故障 装置和LPLEGR意味着或根据内燃机的操作状态切换它们。 解决方案：该系统设置有HPLEGR装置，用于将涡轮增压器的涡轮机的上游侧的一部分排气引入涡轮增压器的压缩机的下游侧的进气通道，LPLEGR装置，用于引入 涡轮下游侧的排气的一部分与压缩机的上游侧的进气通路相连接，EGR控制单元随着负载变高而增加EGRLE装置的EGR量，并通过HPLEGR增加EGR量 意味着负载变低，以及燃烧稳定装置，用于当在内燃机的预热中途检测到加速过渡状态时，稳定内燃机燃料的燃烧。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008255815A

公开(公告)日：2008-10-23

申请号：JP2007096289

申请日：2007-04-02

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

Inventor： OGO TOMOYOSHI ,  TOMOTA AKITOSHI ,  ISHIYAMA SHINOBU ,  FURUHASHI MICHIO ,  ONO TOMOYUKI ,  NAKATANI KOICHIRO ,  HISATAKA YOSHIHIRO

IPC: F02D13/02 ,  F02B31/02 ,  F02D15/00

CPC classification number: Y02T10/146 ,  Y02T10/18

Abstract: PROBLEM TO BE SOLVED: To control the strength of a swirl in a cylinder at a high degree of flexibility with a comparatively simple structure in a diesel engine. SOLUTION: This diesel engine 10 comprises a first intake valve 14a, a second intake valve 14b, a first intake port communicated to the first intake valve 14a, a second intake port communicated to the second intake valve 14b, a first valve operating mechanism 20 driving the first intake valve 14a at a fixed operating angle, and a second valve operating mechanism 22 driving the second intake valve 14b at a variable operating angle between a minimum operating angle smaller than the fixed operating angle of the first intake valve 14a and a maximum operating angle larger than the fixed operating angle of the first intake valve 14b. A swirl ratio of the first intake port alone is larger than that of the second intake port alone. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：以柴油发动机中比较简单的结构，以高度的灵活性来控制气缸中的涡流的强度。 解决方案：该柴油发动机10包括第一进气门14a，第二进气门14b，连通到第一进气门14a的第一进气口，连通到第二进气门14b的第二进气口，第一阀门操作 机构20以固定的操作角度驱动第一进气门14a;第二气门操作机构22以可操作角度驱动第二进气门14b，该最小操作角度小于第一进气门14a的固定操作角度的最小操作角度;以及第二气门操作机构22， 最大操作角度大于第一进气门14b的固定操作角度。 单独的第一进气口的涡流比仅大于第二进气口的涡流比。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008215118A

公开(公告)日：2008-09-18

申请号：JP2007051114

申请日：2007-03-01

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

Inventor： TOMOTA AKITOSHI ,  ISHIYAMA SHINOBU ,  FURUHASHI MICHIO ,  ONO TOMOYUKI ,  NAKATANI KOICHIRO ,  OGO TOMOYOSHI

IPC: F02D41/04 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N3/36 ,  F02D21/08 ,  F02D43/00 ,  F02D45/00

CPC classification number: F02D41/0055 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N2240/36 ,  F01N2430/08 ,  F02B29/0406 ,  F02B31/085 ,  F02B37/00 ,  F02B2275/14 ,  F02D9/04 ,  F02D41/0275 ,  F02D41/403 ,  F02D2041/0015 ,  F02D2250/18 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/23 ,  Y02T10/123 ,  Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To reduce torque reduction in an internal combustion engine as much as possible when recirculation of exhaust gas by an EGR device and rich spike control are performed in an exhaust emission control system of an internal combustion engine equipped with the EGR device that recirculates a part of the exhaust gas further on the downstream side than a reducing agent adding valve in the internal combustion engine. SOLUTION: In the rich spike control, a base air-fuel ratio AFb is reduced within a range of a combustion fluctuation ΔCC not exceeding an allowable limit ΔCCL (S108). When the combustion fluctuation ΔCC exceeds the allowable limit ΔCCL, a base air-fuel ratio AFbs in spike is corrected to the lean side (S213), and when a torque reduction amount ΔTD is greater than an allowable value ΔTDL, the base air-fuel ratio AFbs in spike is corrected to the rich side (S215). When the combustion fluctuation ΔCC exceeds the allowable limit ΔCCL and the torque reduction amount ΔTD is greater than the allowable value ΔTDL, the base air-fuel ratio AFbs in spike is corrected to the lean side and a fuel discharge number EN is increased (S216). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了在内燃机的废气排放控制系统中进行EGR装置的循环再循环和丰富的尖峰控制，尽可能减小内燃机的转矩降低， EGR装置，其在废气的一部分中进一步再循环在内燃机中的还原剂添加阀的下游侧。 解决方案：在丰富的尖峰控制中，基本空燃比AFb在不超过允许极限ΔCCL的燃烧波动ΔCC的范围内减小（S108）。 当燃烧波动ΔCC超过允许极限ΔCCL时，将尖峰中的基本空燃比AFb校正为稀薄侧（S213），并且当转矩降低量ΔTD大于允许值ΔTDL时，基础空气燃料 峰值比AFFS被校正到富侧（S215）。 当燃烧波动ΔCC超过允许极限ΔCCL并且扭矩减小量ΔTD大于允许值ΔTDL时，将尖峰中的基本空燃比AFb校正为稀侧，并且燃料排放数EN增加（S216） 。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008038648A

公开(公告)日：2008-02-21

申请号：JP2006210726

申请日：2006-08-02

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

Inventor： MIYAKE TERUHIKO ,  NAKAYAMA SHIGEKI ,  MURATA HIROKI ,  NAGAE MASAHIRO ,  SHIMIZU HAJIME ,  HAGA HIROYUKI ,  MATSUMOTO ISAO ,  YAMASHITA AKIRA ,  KARITA KOJI ,  ONO TOMOYUKI ,  ONISHI TOMOMI

IPC: F02M25/07 ,  F02D45/00

CPC classification number: F02D41/0072 ,  F02D41/0007 ,  Y02T10/144 ,  Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide a technique for suitably controlling gas composition and intake gas quantity by accurately calculating both of low pressure EGR gas quantity and high pressure EGR gas quantity in an exhaust gas recirculation device for an internal combustion engine.
SOLUTION: Compressor passing gas quantity is acquired from fore-and-aft pressures of a compressor and rotation speed of the compressor (S103). Low pressure EGR gas quantity is calculated from compressor passing gas quantity and fresh air quantity (S104), and high pressure EGR gas quantity is calculated from compressor passing gas quantity and suction air quantity (S105). Low pressure EGR gas quantity and high pressure EGR gas quantity are controlled to target quantities, respectively (S106).
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过精确地计算用于内燃机的排气再循环装置中的低压EGR气体量和高压EGR气体量来适当地控制气体成分和进气量的技术。 解决方案：从压缩机的前后压力和压缩机的转速获得压缩机通过气体量（S103）。 从压缩机通过气体量和新鲜空气量计算低压EGR气体量（S104），从压缩机通过气体量和吸入空气量计算高压EGR气体量（S105）。 将低压EGR气体量和高压EGR气体量分别控制为目标量（S106）。 版权所有（C）2008，JPO＆INPIT