公开(公告)号：JP2005344557A

公开(公告)日：2005-12-15

申请号：JP2004163299

申请日：2004-06-01

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

Inventor： AOYAMA TARO

IPC: F02D9/02 ,  F02D41/00 ,  F02D41/04 ,  F02D45/00 ,  G01N33/28

CPC classification number: F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D35/023 ,  F02D41/123 ,  F02D41/401 ,  F02D2200/0612 ,  Y02T10/36

Abstract: PROBLEM TO BE SOLVED: To provide a technique for highly accurately measuring a cetane number of fuel, while the fuel is actually used for operating an internal combustion engine. SOLUTION: In a fuel cut state of the internal combustion engine (S101), a cetane number measurement fuel is injected (S105) by a specific amount of fuel into a combustion chamber in a compression stroke or an expansion stroke. The cetane number of the fuel is measured based on a period from specific timing to ignition timing wherein the fuel injected by the cetane measurement fuel injection is ignited. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于在燃料实际上用于操作内燃机的同时高精度地测量燃料的十六烷值的技术。 解决方案：在内燃机的燃料切断状态（S101）中，通过特定量的燃料将十六烷值测量燃料（S105）注入到压缩冲程或膨胀冲程的燃烧室中。 燃料的十六烷值是根据从特定时刻到点火正时的时间来测量的，其中通过十六烷
测量燃料喷射喷射的燃料被点燃。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005076456A

公开(公告)日：2005-03-24

申请号：JP2003209645

申请日：2003-08-29

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

Inventor： SASAKI SHIZUO ,  YOSHIZAKI KOJI ,  AOYAMA TARO ,  MURATA HIROKI ,  HASHIMOTO YOSHINOBU ,  NISHIOKA HIROMASA ,  INAGAKI KAZUHISA

IPC: F02B37/00 ,  F02D21/08 ,  F02D23/00 ,  F02M25/07

CPC classification number: F02M26/24 ,  F02B29/0406 ,  F02M26/05 ,  F02M26/06

Abstract: PROBLEM TO BE SOLVED: To enable low-temperature combustion even in high required load. SOLUTION: This internal combustion engine 10 comprises a change-over means for change-over between low-temperature combustion and normal combustion where the amount of inactive gas to be supplied into a combustion chamber is less than the amount of inactive gas when generating a peak amount of soot, and a turbo charger 15. An exhaust gas circulation device has a low pressure exhaust gas recirculation passage 61 where the pressure of recirculated exhaust gas is low, a high pressure exhaust gas recirculation passage 29 where the pressure of recirculated exhaust gas is high, a first recirculated exhaust gas control valve 64 for controlling the amount of recirculated exhaust gas flowing in the low pressure exhaust gas recirculation passage, and a second recirculated exhaust gas control valve 31 for controlling the amount of recirculated exhaust gas flowing in the high pressure exhaust gas recirculation passage. In the internal combustion engine 10 when performing low-temperature combustion, the amount of the recirculated exhaust gas flowing in the low pressure exhaust gas recirculation passage and the amount of the recirculated exhaust gas flowing in the high pressure exhaust gas recirculation passage are controlled in accordance with required engine load. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：即使在高要求的负载下也能实现低温燃烧。 解决方案：该内燃机10包括用于在低温燃烧和正常燃烧之间转换的转换装置，其中供应到燃烧室中的惰性气体的量小于不活泼气体的量， 产生烟灰的峰值量和涡轮增压器15.排气循环装置具有低压废气再循环通道61，其中再循环废气的压力低，高压排气再循环通道29，其中再循环的压力 排气高，用于控制在低压排气再循环通道中流动的再循环废气量的第一再循环排气控制阀64和用于控制流入的再循环排气量的第二再循环排气控制阀31 高压废气再循环通道。 在进行低温燃烧时的内燃机10中，在低压排气再循环路径中流动的再循环排气量和高压排气再循环通路中流动的再循环排气量按照 需要发动机负载。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004100566A

公开(公告)日：2004-04-02

申请号：JP2002263173

申请日：2002-09-09

Applicant: Toyota Central Res & Dev Lab Inc ,  Toyota Motor Corp ,  トヨタ自動車株式会社 ,  株式会社豊田中央研究所

Inventor： KOBAYASHI NOBUKI ,  SASAKI SHIZUO ,  AOYAMA TARO ,  INAGAKI KAZUHISA ,  NAKAKITA KIYOMI ,  NAKAHARA SHOJI ,  HOTTA YOSHIHIRO

IPC: F02D9/02 ,  F02D21/08 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  F02D43/00 ,  F02D45/00 ,  F02M45/04 ,  F02M45/10 ,  F02M47/00 ,  F02M51/00

Abstract: PROBLEM TO BE SOLVED: To control the combustion condition of a diesel engine optimally.
SOLUTION: Cylinder pressure sensors 29a to 29d for detecting combustion chamber pressure are placed on each cylinder of a diesel engine 1. An electronic control unit (ECU) 20 of the engine 1 selects the optimal combustion parameter in accordance with the fuel injection mode of fuel injection valves 10a to 10d of the engine 1 out of a plural types of combustion parameters each indicating a combustion condition of the engine 1 calculated based on outputs of the sensors 29a to 29d, and feedback controls the fuel injection amount and the fuel injection timing so that the value of the combustion parameter meets the target value fixed corresponding to the engine operating condition. Accordingly, the engine combustion condition is controlled to be always in the optimal condition regardless of the fuel injection mode or the combustion mode.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2012127327A

公开(公告)日：2012-07-05

申请号：JP2010281962

申请日：2010-12-17

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

Inventor： OYAGI HIROSHI ,  TAKASE KOHEI ,  FUJIWARA KIYOSHI ,  AOYAMA TARO

IPC: F02M25/07 ,  F01M9/02 ,  F02B37/00

CPC classification number: Y02T10/121 ,  Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an internal combustion engine that can reliably prevent an intake system metal components from corroding by neutralizing a condensed water in an oil pan without changing a liquid surface level in the oil pan and where the costs for manufacturing or maintenance are suppressed.SOLUTION: The exhaust gas recirculation device for the internal combustion engine forms an exhaust recirculation passage P4 for making the engine 10 newly suction an exhaust gas that is refluxed from an exhaust pipe 42 to an intake pipe 32, and cools the exhaust gas in the passage using an EGR cooler 73. The exhaust gas recirculation device includes: a condensed water catch 80 that stores the condensed water generated from the exhaust gas in the exhaust recirculation passage P4; an oil temperature sensor 87 that directly or indirectly detects a temperature of an oil for lubricity or cooling that is stored in the engine 10; and a condensed water introduction mechanism 90 that when a temperature detected by the oil temperature sensor 87 reaches one by which the condensed water can vapor, introduces the condensed water stored in the condensed water catch 80 into the oil inside the engine 10.

Abstract translation: 要解决的问题：提供一种用于内燃机的废气再循环装置，其可以可靠地防止进气系统金属部件腐蚀，通过中和油底壳中的冷凝水而不改变油底壳中的液面水平 以及制造或维护成本被抑制的地方。 解决方案：用于内燃机的废气再循环装置形成排气再循环通道P4，用于使发动机10新吸入从排气管42回流到进气管32的排气，并将排气 排气再循环装置包括：冷凝水捕集器80，其将从废气产生的冷凝水存储在排气再循环通道P4中; 直接或间接地检测存储在发动机10中的用于润滑性或冷却性的油的温度的油温传感器87; 以及冷凝水引入机构90，当由油温传感器87检测到的温度达到冷凝水可以蒸汽的温度时，将存储在冷凝水捕集器80中的冷凝水引入到发动机10内的油中。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010209870A

公开(公告)日：2010-09-24

申请号：JP2009059190

申请日：2009-03-12

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

Inventor： YAMASHITA YOSHIO ,  OYAGI HIROSHI ,  AOYAMA TARO ,  IWATANI KAZUKI

IPC: F02B37/02 ,  F02B37/00 ,  F02B37/007

CPC classification number: Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of inhibiting drop of a supercharging pressure occurring at changeover between a single turbo mode and a twin turbo mode. SOLUTION: The control device for the internal combustion engine includes a first supercharger, a second supercharger, an exhaust gas passage, an intake air passage, an exhaust gas changeover valve, an intake air changeover valve, and a control means. The control means sets a timing for starting open of the intake air change-over valve later than a timing for starting open of the exhaust gas changeover valve in changeover from the single turbo mode to the twin turbo mode, and starts open of the intake air changeover valve when opening of the exhaust gas changeover valve increases to a prescribed opening. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制在单涡轮模式和双涡轮模式之间切换时发生的增压压力下降的内燃机的控制装置。 解决方案：内燃机的控制装置包括第一增压器，第二增压器，排气通道，进气通道，排气切换阀，进气切换阀和控制装置。 控制装置设定比从单涡轮模式切换到双涡轮模式的排气切换阀开始的定时更晚的开始打开进气转换阀的定时，并开始进气 当排气切换阀打开时切换阀增加到规定的开度。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010156221A

公开(公告)日：2010-07-15

申请号：JP2008333853

申请日：2008-12-26

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

Inventor： YAMASHITA YOSHIO ,  AOYAMA TARO ,  IWATANI KAZUKI ,  OYAGI HIROSHI

IPC: F02D45/00

Abstract: PROBLEM TO BE SOLVED: To provide an intake air amount detecting device for an internal combustion engine, which can accurately grasp the intake air amount of two superchargers using a single intake air amount sensor. SOLUTION: This intake air amount detecting device is used for an internal combustion engine 1, in which part of an intake air passage 4 is divided into a first passage 7 and a second passage 8 and the first passage 7 is provided with a primary turbocharger 24 and the second passage 8 is provided with a secondary turbocharger 25. The air amount sucked into the primary turbocharger 24 is measured by an air flow sensor 40, and all the air amount sucked into the internal combustion engine 1 is computed based on the real measurement value of the intake air pressure detected by an intake air pressure sensor 41 and the real measurement value of the engine speed detected using a crank angle sensor 43, and the intake air amount of the secondary turbocharger 25 is determined based on the detection value of the air flow meter 40 and the computed value of all the air amount. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于内燃机的进气量检测装置，其可以使用单个进气量传感器精确地掌握两个增压器的进气量。 解决方案：该进气量检测装置用于内燃机1，其中进气通道4的一部分被分成第一通道7和第二通道8，第一通道7设置有 主涡轮增压器24和第二通道8设置有二次涡轮增压器25.通过空气流量传感器40测量吸入主涡轮增压器24的空气量，并且基于以下方式计算吸入内燃机1的所有空气量 基于检测来确定由进气压力传感器41检测到的进气压力的实际测量值和使用曲柄角传感器43检测的发动机转速的实际测量值，以及次级涡轮增压器25的进气量。 空气流量计40的值和所有空气量的计算值。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010151101A

公开(公告)日：2010-07-08

申请号：JP2008332931

申请日：2008-12-26

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

Inventor： YAMASHITA YOSHIO ,  AOYAMA TARO ,  IWATANI KAZUKI ,  OYAGI HIROSHI

IPC: F02B37/007 ,  F02B37/00

CPC classification number: Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To prevent oil leak from a turbine side of a second turbocharger during a single mode in an internal combustion engine with superchargers including two supercharges. SOLUTION: The internal combustion engine with the superchargers includes first and second turbochargers, a catalyst disposed in an exhaust gas passage at a downstream of the first turbocharger, an exhaust gas passage between a turbine of the first turbocharger and the catalyst, an exhaust gas bypass passage communicating to the exhaust gas passage at an upstream of the turbine of the second turbocharger, and an exhaust gas bypass valve disposed in the exhaust gas bypass passage. The exhaust gas bypass valve opens when a difference of exhaust gas pressures of an outlet of the turbine of the first turbocharger and an inlet of the turbine of the second turbocharger is not less than a predetermined value during the single turbo mode. Consequently, part of exhaust gas of a high exhaust gas pressure at the downstream of the turbine of the first turbocharger is introduced to the turbine of the second turbocharger through the exhaust gas bypass passage. As the result, rotation of the second turbocharger is accelerated during the single turbo mode and oil leak from the turbine side of the second turbocharger is prevented. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：在具有包括两个增压器的增压器的内燃机中，在单个模式期间，防止来自第二涡轮增压器的涡轮机侧的油泄漏。 具有增压器的内燃机包括第一和第二涡轮增压器，设置在第一涡轮增压器下游的排气通道中的催化剂，第一涡轮增压器的涡轮与催化剂之间的排气通道， 在第二涡轮增压器的涡轮的上游与排气通路连通的废气旁通路，以及配置在废气旁通通路中的排气旁通阀。 当在单涡轮模式期间当第一涡轮增压器的涡轮机的出口和第二涡轮增压器的涡轮的入口的排气压力的差异不小于预定值时，废气旁通阀打开。 因此，在第一涡轮增压器的涡轮下游的高排气压力的一部分废气通过排气旁通通路被引入第二涡轮增压器的涡轮。 结果，在单涡轮模式期间第二涡轮增压器的旋转被加速，并且防止了来自第二涡轮增压器的涡轮机侧的油泄漏。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009185684A

公开(公告)日：2009-08-20

申请号：JP2008026279

申请日：2008-02-06

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

Inventor： AOYAMA TARO ,  IEMURA AKIYUKI ,  NAKAMURA YOSHITAKA

IPC: F02D9/02 ,  F02B37/007 ,  F02B37/02 ,  F02B39/16 ,  F02D9/04 ,  F02D23/00

CPC classification number: Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide a failure diagnostic device of an internal combustion engine having two superchargers which specifies positions of abnormalities. SOLUTION: The failure diagnostic device of the internal combustion engine includes first and second superchargers which are arranged in parallel with each other and a control valve having an intake selector valve and an intake bypass valve. The intake selector valve is provided at the intake passage of the second supercharger, and the intake bypass valve is provided at the intake bypass passage which connects the outlet of the compressor of the second supercharger with the inlet of the compressor of the first supercharger. The control valve is used for switching a twin turbo mode and a single turbo mode. The failure diagnostic device of the internal combustion engine is also provided with a pressure sensor on the compressor outlet side which is provided downstream of the compressor of the second supercharger and upstream of the intake selector valve, and used for detecting the outlet pressure of the compressor of the second supercharger. In the single turbo mode, the failure diagnosis of at least one of the control valves is performed based on outlet pressure when at least either open movement or close movement is performed. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供具有两个指定异常位置的增压器的内燃机的故障诊断装置。 解决方案：内燃机的故障诊断装置包括彼此并联布置的第一和第二增压器以及具有进气选择阀和进气旁通阀的控制阀。 进气选择阀设置在第二增压器的进气通道处，并且进气旁通阀设置在将第二增压器的压缩机的出口与第一增压器的压缩机的入口连接的进气旁通通道。 控制阀用于切换双涡轮模式和单涡轮模式。 内燃机的故障诊断装置还设置有压缩机出口侧的压力传感器，该压力传感器设置在第二增压器的压缩机的下游并且位于进气选择阀的上游，并用于检测压缩机的出口压力 的第二增压器。 在单涡轮模式中，至少一个控制阀的故障诊断是基于出口压力进行的，当进行至少一个打开运动或闭合运动时。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009002179A

公开(公告)日：2009-01-08

申请号：JP2007161824

申请日：2007-06-19

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

Inventor： GOTO ISAMU ,  AOYAMA TARO

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/02 ,  F01N3/08 ,  F01N3/24

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine more effectively utilizing HC adsorbed by an HC adsorbing catalyst after catalyst light-off to increase a temperature increasing effect of a catalyst floor temperature due to catalyst combustion of the HC adsorbing catalyst and activate an exhaust-gas purification catalyst in an early stage using the temperature-increased exhaust gas, and thereby improving a purification performance of the exhaust gas.
SOLUTION: The exhaust emission control device for the internal combustion engine uses fuel supplied from a fuel tank 16 by a fuel injection valve 21 as fuel for combustion inside an engine cylinder, and uses a reducing agent adding valve 22 for reducing NOx. When it is before the catalyst light-off of a NOx purification catalyst 43a and an exhaust-gas flow rate is less than a predetermined value, the purification device makes a discharging amount of HC in the exhaust gas to be in a greater amount condition to positively adsorb HC by the HC adsorbing catalyst. Therefore, the catalyst floor temperature is rapidly increased by the catalyst combustion after the catalyst light-off of the HC adsorbing catalyst, a warm-up performance of the NOx purification catalyst 43a is improved, and a NOx purification performance is improved.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：为了在催化剂熄灭后更有效地利用HC吸附催化剂吸附的HC来提供用于内燃机的废气排放控制装置，以增加催化剂燃烧引起的催化剂底板温度的升温效果 的HC吸附催化剂，并且使用升温废气在早期使活性化废气净化催化剂，从而提高废气的净化性能。 解决方案：内燃机的废气排放控制装置使用燃料喷射阀21从燃料箱16供给的燃料作为发动机气缸内的燃烧用燃料，并且使用用于还原NOx的还原剂添加阀22。 当在NOx净化催化剂43a的催化剂熄灭之前和废气流量小于预定值时，净化装置使废气中的HC的排出量处于更大的量条件下， 通过HC吸附催化剂正向吸附HC。 因此，在HC吸附催化剂的催化剂熄灭之后催化剂燃烧迅速地提高了催化剂底板温度，提高了NOx净化催化剂43a的预热性能，提高了NOx净化性能。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008063986A

公开(公告)日：2008-03-21

申请号：JP2006241255

申请日：2006-09-06

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

Inventor： FUKUDA KOICHIRO ,  AOYAMA TARO

IPC: F01N3/36 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/22 ,  F01N3/24 ,  F01N3/28 ,  F01N3/32

Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of starting supply of a reducing agent in an early stage, when starting supply of secondary air, in an exhaust emission control device of an internal combustion engine. SOLUTION: An exhaust passage of the internal combustion engine is provided with a reducing agent supply means, an exhaust emission control catalyst, a secondary air supply means and a catalyst having oxidation capacity in order. When a supply quantity of the secondary air gradually increases by starting the supply of the secondary air from the secondary air supply means, a supply quantity of the reducing agent from the reducing agent supply means, is adjusted in response to the supply quantity of secondary air so that the air-fuel ratio of exhaust gas flowing in the catalyst having the oxidation capacity becomes the target air-fuel ratio. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够在开始供给二次空气的早期阶段中在内燃机的废气排放控制装置中开始供给还原剂的技术。 解决方案：内燃机的排气通道依次具有还原剂供给装置，废气排放控制催化剂，二次空气供给装置和具有氧化能力的催化剂。 当二次空气的供给量通过从二次空气供给装置开始二次空气的供给而逐渐增加时，根据二次空气的供给量调整来自还原剂供给单元的还原剂的供给量 使得在具有氧化能力的催化剂中流动的废气的空燃比成为目标空燃比。 版权所有（C）2008，JPO＆INPIT