公开(公告)号：JP2009250057A

公开(公告)日：2009-10-29

申请号：JP2008095979

申请日：2008-04-02

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

Inventor： AOYAMA TARO

IPC: F02D23/00 ,  F02B37/00 ,  F02B37/007 ,  F02B37/24 ,  F02D21/08 ,  F02M25/07

CPC classification number: Y02T10/121 ,  Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide a NOx discharge amount suppressing device when switching a mode to a single-turbo mode from a twin-turbo mode. SOLUTION: An internal combustion engine includes an engine body, first and second superchargers, a control unit having first to third operation control maps, and an EGR passage. Until an operating state exceeds a first switching determination line from the single-turbo mode to the twin-turbo mode to a high rotation side in the single-turbo mode, the control unit performs operation control in a state that the first operation control map is used. Until the operating state enters a hysteresis region in the twin-turbo mode, the control unit performs operation control in the state that the second operation control map is used. After entering the hysteresis region, the control unit performs operation control in the state that the third operation control map is used. The third operation control map shows that supercharged pressure is set lower than in the same operating states in first and second operation control maps, and that an EGR ratio is set higher than in the same operating states in the second operation control map. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：当从双涡轮模式切换到单涡轮增压模式时，提供NOx排放量抑制装置。 解决方案：内燃机包括发动机本体，第一和第二增压器，具有第一至第三操作控制图的控制单元和EGR通道。 直到操作状态超过从单涡轮模式到双涡轮模式的第一切换判定线到单涡轮模式的高旋转侧时，控制单元在第一操作控制图是 用过的。 直到操作状态进入双涡轮模式的滞后区域，控制单元在使用第二操作控制图的状态下执行操作控制。 在进入滞后区域之后，控制单元在使用第三操作控制图的状态下执行操作控制。 第三操作控制图示出了在第一和第二操作控制图中，增压压力被设定为低于相同操作状态，并且将EGR率设定为高于第二操作控制图中的相同操作状态。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009167963A

公开(公告)日：2009-07-30

申请号：JP2008009006

申请日：2008-01-18

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

Inventor： AOYAMA TARO

IPC: F02B39/16 ,  F02B37/007 ,  F02B37/02 ,  F02B37/16 ,  F02M35/10

CPC classification number: F02B37/002 ,  F02B37/16 ,  Y02T10/144

Abstract: PROBLEM TO BE SOLVED: To provide an abnormality determination device specifying an abnormal section in an internal combustion engine including two superchargers. SOLUTION: The abnormality determination device for the internal combustion engine 1 is provided with a first and a second superchargers 13a, 13b disposed in parallel. The device is provided with a plurality of control valves 17, 19, 21, 31 used for changing over operation modes between a twin turbo mode in which the first and the second superchargers 13a, 13b are used for supercharging, and a single turbo mode in which the second supercharger 13b is not used for supercharging but the first supercharger 13a is used for supercharging. The device is provided with a compressor inlet side air flow meter 15 provided in an upstream of a compressor of the second supercharger 13b and detecting intake air quantity GA2 flowing in the second supercharger 13b. The device is provided with a control part 5 carrying out a failure diagnosis of at least one control valve of the plurality of the control valves, based on intake air quantity GA2 during at least one of operations of open operation or close operation of at least one control valve of the plurality of the control valves. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在包括两个增压器的内燃机中指定异常部分的异常确定装置。 解决方案：内燃机1的异常判定装置具备平行配置的第一和第二增压器13a，13b。 该装置设有多个用于在第一和第二增压器13a，13b用于增压的双涡轮模式之间切换操作模式的控制阀17,19,21,31和单个涡轮模式 第二增压器13b不用于增压，而第一增压器13a用于增压。 该装置设置有设置在第二增压器13b的压缩机的上游的压缩机入口侧空气流量计15，并且检测在第二增压器13b中流动的进气量GA2。 该装置设置有控制部5，该控制部5在至少一个开放操作或关闭操作的至少一个操作中基于进气量GA2执行多个控制阀中的至少一个控制阀的故障诊断 多个控制阀的控制阀。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008280866A

公开(公告)日：2008-11-20

申请号：JP2007123782

申请日：2007-05-08

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

Inventor： AOYAMA TARO

IPC: F01N13/08 ,  F01N1/08 ,  F01N3/02

CPC classification number: F01N1/166

Abstract: PROBLEM TO BE SOLVED: To suppress increasing of an internal pressure of an exhaust gas flow passage at a location upstream of a particulate filter.
SOLUTION: This device is comprised of a pressure control valve 5 capable of changing a flow passage area of the exhaust gas flow passage 2 at a location downstream of the particulate filter 3; and a diaphragm type actuator 7 for changing an opening of the pressure control valve 5 using, as a driving source, a difference pressure between inside the exhaust gas flow passage 2 upstream of the particulate filter 3 and inside a muffler 4 to which the exhaust gas flow passage 2 downstream of the particulate filter 3 is connected. The diaphragm type actuator 7 increases the opening of the pressure control valve 5 when the pressure inside the exhaust gas flow passage 2 upstream of the particulate filter 3 is increased.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：抑制微粒过滤器上游位置处的排气流路的内部压力的增加。 解决方案：该装置包括能够在微粒过滤器3的下游位置改变排气流路2的流路面积的压力控制阀5; 以及膜片式致动器7，用于使用作为驱动源的微粒过滤器3上游的排气流路2内部的差压与排气的上游侧的消声器4之间的压力控制阀5的开度 颗粒过滤器3下游的流路2被连接。 当颗粒过滤器3上游的排气流路2内的压力增加时，隔膜式致动器7增加压力控制阀5的开度。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008261248A

公开(公告)日：2008-10-30

申请号：JP2007103119

申请日：2007-04-10

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

Inventor： MORISHIMA AKINORI ,  AOYAMA TARO ,  INOUE MIKIO

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

CPC classification number: F01N3/0821 ,  B01D53/9431 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2258/012 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0878 ,  F01N13/009 ,  F01N13/0093 ,  F01N2610/03

Abstract: PROBLEM TO BE SOLVED: To provide a technique capable of separately controlling concentration of reducing agent of exhaust emission flowing in an exhaust emission control device at an upstream side and an exhaust emission control device at a downstream side which are serially provided for an exhaust emission pipe with a simple structure. SOLUTION: The exhaust emission control system is provided with the two exhaust emission control devices serially arranged for an exhaust emission passage, a bypass passage for bypassing the upstream side exhaust emission control device, an exhaust emission control valve provided for the bypassing passage and a reducing agent supply means arranged at an upstream side of a branching part. The reducing agent is intermittently supplied from the reducing agent supply means, the concentration of the reducing agent of the exhaust emission is changed periodically and the exhaust emission control valve is periodically opened and closed at predetermined timing corresponding to change in concentration of the reducing agent. Thus, the supplied reducing agent is divided into what is to be introduced to the upstream side exhaust emission control device and what is to be introduced to the downstream side exhaust emission control device via the bypass passage. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够分别控制在上游侧的废气排放控制装置中流动的废气排放物的还原剂的浓度和下游侧的排气排放控制装置的浓度的技术， 废气排放管结构简单。 解决方案：废气排放控制系统设置有排气排放通道串联排列的两个废气排放控制装置，用于旁路上游侧废气排放控制装置的旁通通道，为旁路通路设置的废气排放控制阀 以及设置在分支部的上游侧的还原剂供给单元。 还原剂从还原剂供给装置间歇地供给，废气排放的还原剂的浓度周期性地变化，排气排放控制阀在与还原剂的浓度变化对应的规定时间周期性地开闭。 因此，供给的还原剂被分配为将被引入到上游侧废气排放控制装置中的内容物，以及经由旁路通路被引入下游侧排气排放控制装置的内容物。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008163913A

公开(公告)日：2008-07-17

申请号：JP2006356779

申请日：2006-12-29

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

Inventor： AOYAMA TARO

IPC: F02D41/40 ,  F02D43/00 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To secure learning accuracy of an injection quantity regardless of a change in a cetane number.
SOLUTION: When shipping from a factory of an engine 200, initial setting processing is executed by an ECU 100. In the initial setting processing, whether or not an initial cetane number being the cetane number is acquired for initial filling fuel filled for the first time in the engine 200 as an accurate value via, for example, artificial input operation and automatic input processing, is discriminated. When the initial cetane number is not yet acquired, the processing is temporarily controlled in a standby state. When the initial cetane number is already acquired, very small injection quantity learning processing is executed. In the very small injection quantity learning processing, a correction quantity is calculated based on an already acquired accurate initial cetane number and a change in an engine speed of the engine 200 corresponding to very small injection of fuel so as to make an actual injection quantity coincide with a request injection quantity.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了确保喷射量的学习准确性，而与十六烷值的变化无关。

解决方案：当从发动机200的出厂运送时，由ECU 100执行初始设定处理。在初始设定处理中，是否获取了用于初始填充燃料的初始填充燃料的十六烷值， 通过例如人工输入操作和自动输入处理，将发动机200中的第一次作为精确值进行辨别。 当尚未获得初始十六烷值时，处理被暂时控制在待机状态。 当已经获得初始十六烷值时，执行非常小的喷射量学习处理。 在非常小的喷射量学习处理中，基于已经获得的准确的初始十六烷值和与非常小的燃料喷射相对应的发动机200的发动机转速的变化来计算校正量，使得实际喷射量一致 具有请求注入量。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008121596A

公开(公告)日：2008-05-29

申请号：JP2006307749

申请日：2006-11-14

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

Inventor： NISHIOKA HIROMASA ,  AOYAMA TARO

IPC: F01N3/20 ,  B01D53/94

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine executing a first regeneration process after engine start to reduce NO X emission quantity to the atmosphere. SOLUTION: Regeneration start temperature T' is set for each NO X storage quantity A of an NO X catalyst device (step 103) to keep temperature of the NO X catalyst device at a time of the first regeneration process after engine start as low as possible in temperature equal to or higher than the set temperature discharging little NO X from the NO X catalyst device. When present temperature T of the NO X catalyst device gets to a regeneration start temperature or higher set for the present NO X storage quantity of the NO X catalyst device (step 104), the first regeneration process after engine start is executed (step 105). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在发动机启动之后执行第一再生处理的内燃机的废气排放控制装置，以将NO X 排放量排放到大气中。

解决方案：为了保持NO X 催化剂装置的每个NO X 储存量A（步骤103），设定再生开始温度T' SB> X 催化剂装置在发动机起动之后的第一再生处理时尽可能低的温度等于或高于来自NO X > X 催化剂装置。 当NO X 催化剂装置的当前温度T达到对于NO SB SB X X SB / >催化剂装置（步骤104），执行发动机起动之后的第一再生处理（步骤105）。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008095545A

公开(公告)日：2008-04-24

申请号：JP2006275437

申请日：2006-10-06

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

Inventor： MORI TOSHIHIRO ,  AOYAMA TARO

IPC: F01N3/08 ,  F01N3/36

Abstract: PROBLEM TO BE SOLVED: To provide technology allowing accurate estimation of an amount of fuel adhered to an exhaust passage even when a flow rate of exhaust gas is very small in an exhaust emission control device for an internal combustion engine.
SOLUTION: The exhaust emission control device for the internal combustion engine is provided with a new adhered fuel amount estimating means (S104) for estimating the amount of the fuel adhered to the exhaust passage out of the fuel added to the exhaust gas, evaporated fuel amount estimating means (S106, S110) for estimating an evaporated amount of the fuel adhered to the exhaust passage with the usage of models which are different when the flow rate of the exhaust gas is equal to or lower than the prescribed amount and is higher than the prescribed amount, and adhered fuel amount estimating means (S107, S111) for estimating the amount of the fuel remaining in the exhaust passage with the usage of models which are different when the flow rate of the exhaust gas is equal to or lower than the prescribed amount and is higher than the prescribed amount.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：即使在内燃机的废气排放控制装置中排气的流量非常小的情况下，也能够准确地估计附着在排气通路上的燃料量的技术。 解决方案：用于内燃机的废气排放控制装置设置有新的附着燃料量估计装置（S104），用于估计附加到排放通道中的燃料的量，所述燃料附加到排放通道中， 蒸发燃料量估计装置（S106，S110），用于当排气的流量等于或低于规定量时使用不同的模型来估计粘附到排气通道的燃料的蒸发量，并且是 高于规定量的燃料量估计装置，以及当废气流量等于或等于下限时使用不同模型的估计残留在排气通道中的燃料量的附着燃料量估计装置（S107，S111） 超过规定金额，高于规定金额。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008057486A

公开(公告)日：2008-03-13

申请号：JP2006237631

申请日：2006-09-01

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

Inventor： FUKUDA KOICHIRO ,  AOYAMA TARO

IPC: F01N3/02

Abstract: PROBLEM TO BE SOLVED: To easily and accurately estimate the actually discharged amount of particulate matter in an exhaust emission control device of an internal combustion engine.
SOLUTION: The relation between a PM emission factor which is in proportion to the discharged amount of particulate matter and larger as an excess air ratio is smaller and the excess air ratio is stored. The actually discharged amount of particulate matter is calculated by multiplying the discharged amount of PM when an engine is operated in a standard state by the ratio of the PM emission factor obtained according to the actual excess air ratio to the PM emission factor obtained according to the excess air factor when the engine is operated in the standard state.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了容易且准确地估计内燃机的废气排放控制装置中的颗粒物质的实际排出量。

解决方案：与排放的颗粒物质量成比例的PM排放因子与过量空气比之间的关系较小，并且存储过量空气比。 通过将发动机以标准状态运转的PM的排出量乘以根据实际过量空气比获得的PM排放因子与根据实际过量空气比获得的PM排放因子的比例，将颗粒物质的实际排出量乘以 发动机在标准状态下运行时的过量空气因子。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007327465A

公开(公告)日：2007-12-20

申请号：JP2006160857

申请日：2006-06-09

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

Inventor： AOYAMA TARO ,  NAKANO YASUAKI

IPC: F01N3/20 ,  F01N3/08

CPC classification number: F01N3/206 ,  F01N3/0842 ,  F01N3/0871 ,  F01N11/002 ,  F01N2550/03 ,  Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of quickly reducing NOx stored in a storage-reduction type NOx catalyst, when transferring to a state capable of reducing NOx stored in the storage-reduction type NOx catalyst, in an exhaust emission control device of an internal combustion engine.
SOLUTION: This exhaust emission control device has a reducing agent adding means for adding a reducing agent into exhaust gas, and the storage-reduction type NOx catalyst. When transferring to a state capable of reducing the NOx from a state of being unable to reduce the NOx though there is a reduction request of the NOx stored in the storage-reduction NOx catalyst, when performing intensive reduction for intensively adding the reducing agent to the storage-reduction type NOx catalyst, a concentration degree when adding the reducing agent is changed in the intensive reduction on the basis of an NOx quantity stored in the storage-reduction type NOx catalyst and the temperature of the storage-reduction type NOx catalyst.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供能够快速还原储存在还原型NOx催化剂中的NOx的技术，当转移到能够还原储存还原型NOx催化剂中存储的NOx的状态时，在废气​​排放 内燃机的控制装置。 解决方案：该废气排放控制装置具有用于将还原剂添加到废气中的还原剂添加装置和储存还原型NOx催化剂。 当转移到能够从不能够还原NOx的状态降低NOx的状态时，尽管存储在储存还原NOx催化剂中的NOx的减少请求，当进行强化还原时，将还原剂集中添加到 储存还原型NOx催化剂中，加入还原剂时的浓度根据储存还原型NOx催化剂中储存的NOx量和储存还原型NOx催化剂的温度而急剧减少而改变。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007285156A

公开(公告)日：2007-11-01

申请号：JP2006110929

申请日：2006-04-13

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

Inventor： INOUE MIKIO ,  AOYAMA TARO

IPC: F01N3/20 ,  B01D53/94 ,  F01N3/08 ,  F01N3/36

Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of favorably performing the air-fuel ratio degradation control by suppressing degradation of the fuel economy in the air-fuel ratio degradation control in an exhaust emission control device of an internal combustion engine. SOLUTION: In the exhaust emission control device of the internal combustion engine for regenerating the performance of a NOx catalyst by performing the rich spike control for degrading the air-fuel ratio of an exhaust gas by feeding a fuel to the exhaust gas of the internal combustion engine, the wall temperature of an exhaust gas passage is estimated, and the execution permission is determined for permitting the execution of the rich spike control when the estimated wall temperature exceeds the predetermined value, and prohibiting the execution of the rich spike control when the estimated wall temperature is lower than the predetermined value. The estimated wall temperature is corrected for determining acceptance/rejection of the next rich spike control based on the gradient of the change in the air-fuel ratio when the air-fuel ratio is degraded in the rich spike control under execution. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种能够通过抑制内燃机的废气排放控制装置中的空燃比劣化控制中的燃料经济性的劣化来有利地进行空燃比劣化控制的技术。 解决方案：在用于再生NOx催化剂性能的内燃机的废气排放控制装置中，通过执行用于使废气的空燃比降低的富炽控制， 内燃机，排气通道的壁温进行推定，并且当估计的壁温超过预定值时确定允许执行富穗控制的执行许可，并且禁止执行富穗控制 当估计的壁温度低于预定值时。 基于执行中的富穗控制中的空燃比劣化时的空燃比的变化的梯度，校正估计的壁温度，以确定下一个富穗控制的接受/拒绝。 版权所有（C）2008，JPO＆INPIT