公开(公告)号：US20130219863A1

公开(公告)日：2013-08-29

申请号：US13825838

申请日：2011-10-06

申请人： Shinji Kamoshita ,  Shigeki Nakayama ,  Hiromi Hiramatsu ,  Hiroyuki Murai

发明人： Shinji Kamoshita ,  Shigeki Nakayama ,  Hiromi Hiramatsu ,  Hiroyuki Murai

IPC分类号： F01N3/18

CPC分类号： F01N3/18 ,  F01N3/0256 ,  F01N3/2033 ,  F01N9/00 ,  F01N2240/14 ,  F01N2240/16 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2610/03 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas control apparatus includes: a fuel supply portion that is provided so as to supply fuel to a portion of an exhaust passage, which is upstream of an exhaust gas purification member provided in the exhaust passage; a heating portion that is disposed between the fuel supply portion and the exhaust gas purification member; and a control portion that controls an amount of electric power that is supplied to the heating portion, based on an exhaust gas temperature and an exhaust gas flow rate.

摘要翻译： 排气控制装置包括：燃料供给部，其设置成向设置在排气通路中的排气净化部件的上游侧的排气通路的一部分供给燃料; 设置在燃料供给部和排气净化部件之间的加热部; 以及控制部，其基于排气温度和排气流量来控制供给到加热部的电力量。

公开(公告)号：US08457905B2

公开(公告)日：2013-06-04

申请号：US12812406

申请日：2009-05-18

申请人： Tomomi Onishi ,  Shigeki Nakayama

发明人： Tomomi Onishi ,  Shigeki Nakayama

IPC分类号： G01N31/00 ,  G01F25/00

CPC分类号： F01N11/00 ,  F01N3/021 ,  F01N2550/04 ,  F01N2560/05 ,  F02D41/1446 ,  F02D41/1467 ,  F02D2041/0075 ,  F02D2041/1433 ,  F02D2200/0414 ,  G01M15/102 ,  G01N33/0036 ,  Y02A50/25 ,  Y02T10/20 ,  Y02T10/47

摘要： A soot discharge amount is calculated by multiplying a “steady discharge amount” by a “transient correction value.” The steady discharge amount is a soot discharge amount in a steady operation state, and is acquired through table search. For each of a plurality of factors which affect the soot discharge amount, a steady value (value obtained through table search) of the factor and a transient value (current value) of the factor are substituted for a characteristic equation which represents a change in the soot discharge amount with the value of the factor, whereby a steady characteristic value and a transient characteristic value are acquired. The “ratio between the steady characteristic value and the transient characteristic value” is then calculated for each factor. The transient correction value is obtained by multiplying together all values of the “ratio between the steady characteristic value and the transient characteristic value” obtained for the factors.

摘要翻译： 通过将“稳定排出量”乘以“瞬时校正值”来计算烟灰排放量。 稳定排出量是稳定运行状态下的烟灰排出量，通过表格搜索取得。 对于影响烟灰排放量的多个因素中的每个因素，将因子的稳定值（通过表搜索获得的值）和因子的瞬时值（当前值）代入表示变化的特征方程 烟炱放电量与因子的值，从而获得稳定特性值和瞬态特性值。 然后针对每个因子计算“稳定特性值与瞬态特性值之比”。 通过将所有因子获得的“稳定特性值与瞬态特性值之比”的所有值相乘，从而获得瞬态校正值。

公开(公告)号：US07930922B2

公开(公告)日：2011-04-26

申请号：US11792665

申请日：2006-07-13

申请人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

发明人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

IPC分类号： G01N7/00

CPC分类号： F02D41/029 ,  F01N9/002 ,  F02B29/0406 ,  F02B37/00 ,  F02D35/025 ,  F02D41/0065 ,  F02D41/1455 ,  F02D41/1467 ,  F02D2041/0017 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/602 ,  F02M26/05 ,  F02M26/23 ,  F02M26/46 ,  Y02T10/47

摘要： A soot generation amount estimation apparatus obtains a generation speed of a precursor of soot (accordingly, the concentration of the precursor) in consideration of formation of the precursor from fuel, thermal decomposition of the formed precursor, and formation of soot from the formed precursor, and estimates a generation speed of soot (accordingly, the concentration of soot (the generation amount of soot)) in consideration of formation of soot from the precursor, which depends on the concentration of the precursor, and oxidation of the formed soot. The apparatus employs a reaction model in which the reaction process in which soot is generated from fuel is divided into two steps; i.e., a reaction process in which a precursor is generated from fuel and a reaction process in which soot is generated from the precursor. Thus, phenomena, such as a “delay in soot generation” in the reaction process in which soot is generated from fuel, can be accurately simulated.

摘要翻译： 烟炱发生量估计装置考虑到来自燃料的前体的形成，所形成的前体的热分解和来自所形成的前体的烟灰的形成，获得烟炱前体的生成速度（相应地，前体的浓度） 并且考虑到来自前体的烟灰的形成（其取决于前体的浓度）和形成的烟灰的氧化，估计烟灰的产生速度（因此，烟灰的浓度（烟灰的产生量））。 该装置采用反应模型，其中从燃料产生烟灰的反应过程分为两个步骤; 即其中从燃料产生前体的反应过程和从前体产生烟灰的反应过程。 因此，可以精确地模拟在燃料中产生烟灰的反应过程中的“烟灰产生的延迟”等现象。

公开(公告)号：US20110054762A1

公开(公告)日：2011-03-03

申请号：US12445558

申请日：2008-05-20

申请人： Shigeki Nakayama ,  Tomomi Onishi ,  Akio Matsunaga

发明人： Shigeki Nakayama ,  Tomomi Onishi ,  Akio Matsunaga

IPC分类号： F02M25/07

CPC分类号： F02D41/144 ,  F02B37/127 ,  F02D41/0007 ,  F02D41/0072 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22 ,  F02M26/45 ,  Y02T10/144 ,  Y02T10/47

摘要： A technique is provided which, in an exhaust gas recirculation apparatus for an internal combustion engine, can calculate a low-pressure EGR rate and a high-pressure EGR rate in an accurate manner, and control the flow rates of both a low pressure EGR passage and a high pressure EGR passage in a closed-loop control manner, thereby to make the temperature of intake air and a supercharging pressure stable and to suppress the deterioration of exhaust emissions as well as the deterioration of power performance. The low pressure EGR rate, representative of the proportion of an amount of low pressure EGR gas to an amount of intake air sucked into the internal combustion engine, and the high pressure EGR rate, representative of the proportion of an amount of high pressure EGR gas to the amount of intake air, are calculated by using a CO2 concentration in an intake passage at a location downstream of a connection portion of the low pressure EGR passage and upstream of a connection portion of the high pressure EGR passage, a CO2 concentration in the intake passage at a location downstream the connection portion of the high pressure EGR passage, and a CO2 concentration of an exhaust gas discharged from the internal combustion engine (S103). The low pressure EGR rate and the high pressure EGR rate to be calculated are controlled to individual target values, respectively (S104).

摘要翻译： 提供了一种在内燃机的排气再循环装置中能够以精确的方式计算低压EGR率和高压EGR率的技术，并且控制低压EGR通路 和高压EGR通路，从而使进气温度和增压压力稳定，并且抑制废气排放的劣化以及功率性能的劣化。 代表低压EGR气体的量与吸入内燃机的进气量的比例的低压EGR率和表示高压EGR气体的比例的高压EGR率 通过在低压EGR通路的连接部分的下游位置和高压EGR通路的连接部分的上游的位置处的进气通道中使用CO 2浓度来计算进气量， 在高压EGR通路的连接部分下游的位置和从内燃机排出的废气的CO 2浓度的进气通道（S103）。 将要计算的低压EGR率和高压EGR率分别控制到各个目标值（S104）。

公开(公告)号：US20100179745A1

公开(公告)日：2010-07-15

申请号：US12602693

申请日：2008-06-06

申请人： Shigeki Nakayama ,  Akio Matsunaga ,  Tomomi Onishi ,  Akiyuki Iemura

发明人： Shigeki Nakayama ,  Akio Matsunaga ,  Tomomi Onishi ,  Akiyuki Iemura

IPC分类号： F02D41/00 ,  F02B47/08

CPC分类号： F02D41/144 ,  F02D41/0072 ,  F02D41/123 ,  F02M26/05 ,  F02M26/06 ,  Y02T10/47

摘要： An exhaust gas recirculation device of an internal combustion engine (1) including a low-pressure EGR passage (20), a high-pressure EGR passage (21), a low-pressure EGR valve (23) and a high-pressure EGR valve (24) further includes an air-fuel ratio sensor (12) that is disposed in the exhaust passage (4) upstream of the position of its connection with the low-pressure EGR passage (20). In the case where a predetermined fuel-cut condition is satisfied, an ECU (30) estimates the flow amounts of exhaust gas flowing in the low-pressure EGR passage (20) and the high-pressure EGR passage (21), on the basis of the oxygen concentrations acquired by the air-fuel ratio sensor (12) at timings at which the exhaust gases recirculated into the intake passage (3) via the low-pressure EGR passage (20) and via the high-pressure EGR passage (21) reach the air-fuel ratio sensor (12), respectively.

摘要翻译： 一种内燃机（1）的废气再循环装置，包括低压EGR通路（20），高压EGR通路（21），低压EGR阀（23）和高压EGR阀 （24）还包括在与低压EGR通路（20）的连接位置上游设置在排气通道（4）中的空燃比传感器（12）。 在满足预定的燃料切断条件的情况下，ECU（30）基于在低压EGR通路（20）和高压EGR通路（21）中流动的排气的流量， 在排气通过低压EGR通道（20）再循环到进气通道（3）中的排气和经由高压EGR通道（21）的空气 - 燃料比传感器（12）获取的氧气浓度 ）分别到达空燃比传感器（12）。

公开(公告)号：US20100000213A1

公开(公告)日：2010-01-07

申请号：US12522749

申请日：2008-01-23

申请人： Tomomi Onishi ,  Akio Matsunaga ,  Shigeki Nakayama

发明人： Tomomi Onishi ,  Akio Matsunaga ,  Shigeki Nakayama

IPC分类号： F02D23/00 ,  F02M25/07

CPC分类号： F02D41/0007 ,  F02B29/0406 ,  F02D9/04 ,  F02D41/0065 ,  F02D41/123 ,  F02D2041/0017 ,  F02M25/06 ,  F02M26/05 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/23 ,  Y02T10/144 ,  Y02T10/47

摘要： An exhaust gas control system for an internal combustion engine includes a turbocharger that includes a compressor arranged in an intake passage, and a turbine arranged in an exhaust passage; a low-pressure EGR unit that recirculates a portion of exhaust gas back to the internal combustion engine through a low-pressure EGR passage that provides communication between the exhaust passage, at a portion downstream of the turbine, and the intake passage, at a portion upstream of the compressor; a low-pressure EGR valve that is provided in the low-pressure EGR passage, and that changes the flow passage area of the low-pressure EGR passage; and a valve control unit that executes an opening/closing control over the low-pressure EGR valve. When it is determined that the internal combustion engine is under a predetermined low-temperature environment, the low-pressure EGR valve is kept closed while the internal combustion engine is in the fuel-supply cutoff operation mode.

摘要翻译： 一种用于内燃机的排气控制系统包括：涡轮增压器，包括布置在进气通道中的压缩机和布置在排气通道中的涡轮机; 低压EGR单元，其通过低压EGR通道将排气的一部分再循环回内燃机，所述低压EGR通道在涡轮机下游的部分和进气通道之间提供排气通道与进气通道之间的连通 压缩机上游; 低压EGR阀，其设置在低压EGR通路中，并且改变低压EGR通路的流路面积; 以及阀控制单元，其执行低压EGR阀的打开/关闭控制。 当确定内燃机处于预定的低温环境下时，在内燃机处于燃料供给切断操作模式的同时，低压EGR阀保持关闭。

公开(公告)号：US20090097525A1

公开(公告)日：2009-04-16

申请号：US10584940

申请日：2005-02-08

申请人： Taku Ibuki ,  Shigeki Nakayama

发明人： Taku Ibuki ,  Shigeki Nakayama

IPC分类号： G01K17/00 ,  G01K1/16

CPC分类号： F02D35/026 ,  F02D35/025

摘要： In a gas mixture temperature estimation method for an internal combustion engine, before a forefront portion of a gas mixture reaches an inner wall surface of the combustion chamber, the gas mixture temperature is calculated in accordance with a predetermined equation which is based on the assumption that no head exchange occurs between the gas mixture and cylinder interior gas which exists around the gas mixture without mixing with fuel. After the gas mixture forefront portion reaches the inner wall surface of the combustion chamber, the gas mixture temperature calculated in accordance with the equation is corrected in consideration of the quantity of heat transfer between the gas mixture and the cylinder interior gas and the quantity of heat transfer between the gas mixture and the wall.

摘要翻译： 在用于内燃机的气体混合物温度估计方法中，在气体混合物的前部部分到达燃烧室的内壁表面之前，根据预定的方程式计算气体混合物温度，该预定公式基于以下假设： 在气体混合物周围存在的气体混合物和气缸内部气体之间不会发生头部交换，而不与燃料混合。 在气体混合物前端部分到达燃烧室的内壁表面之后，考虑到气体混合物和气缸内部气体之间的热传递量和热量来校正根据等式计算的气体混合物温度 气体混合物和墙壁之间的转移。

公开(公告)号：US20070255484A1

公开(公告)日：2007-11-01

申请号：US11628494

申请日：2005-09-13

申请人： Daichi Imai ,  Shigeki Nakayama ,  Takao Fukuma

发明人： Daichi Imai ,  Shigeki Nakayama ,  Takao Fukuma

IPC分类号： F02D28/00

CPC分类号： F02D41/0072 ,  F02B29/0406 ,  F02B2275/14 ,  F02D41/0007 ,  F02D41/1462 ,  F02D2041/0017 ,  F02M26/05 ,  F02M26/23 ,  F02M26/46 ,  F02M26/47 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/47

摘要： This control apparatus obtains a relation (trade-off line) between NOx generation amount and PM generation amount with EGR ratio serving as a parameter from an NOx generation amount estimation model which calculates the NOx generation amount on the basis of the oxygen mole concentration of intake gas and a PM generation amount estimation model which calculates the PM generation amount on the basis of an excess air factor. Further, the control apparatus obtains a straight line (ratio determination line) which passes through a point (appropriate point A) corresponding to a combination of steady-condition appropriate values of the NOx generation amount and the PM generation amount under the present operating conditions and which has a slope K determined in consideration of a regulation value based on a law relating to emission control. The control apparatus uses an intersection (target point B) between the trade-off line and the ratio determination line as an emission target value, and sets an EGR ratio target value Regrt to an EGR ratio corresponding to the target point B.

摘要翻译： 该控制装置从NOx生成量估计模型获得NOx生成量与PM生成量之间的关系（权衡关系），其中，EGR比用作为参数的EGR率，该NOx生成量估计模型基于进气的氧摩尔浓度计算NOx生成量 气体和PM生成量估计模型，其根据过量空气系数计算PM生成量。 此外，控制装置获得通过与当前运行条件下的NOx生成量的稳定值适当值和PM生成量的组合对应的点（适当点A）的直线（比例判定线），以及 其具有考虑到基于与排放控制有关的规则的调节值而确定的坡度K. 控制装置使用权衡线和比例判定线之间的交点（目标点B）作为排放目标值，并将EGR率目标值Regrt设定为与目标点B对应的EGR率。

公开(公告)号：US20070169748A1

公开(公告)日：2007-07-26

申请号：US10587576

申请日：2005-03-24

申请人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyarna ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

发明人： Shigeki Nakayama ,  Koji Kitano ,  Taro Aoyarna ,  Ryo Hasegawa ,  Takashi Koyama ,  Kazuhisa Inagaki ,  Yoshifumi Wakisaka ,  Matsuei Ueda ,  Kiyomi Nakakita

IPC分类号： F02M7/00 ,  F02D41/00

CPC分类号： F02D35/028 ,  F02D35/02 ,  F02D35/026 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/1433 ,  Y02T10/128

摘要： A gas-mixture-ignition-time estimation apparatus for an internal combustion engine estimates the temperature of a premixed gas mixture for PCCI combustion (i.e., cylinder interior temperature Tg), while relating it to the angle CA, on the basis of a state quantity of the cylinder interior gas at the time of start of compression (CAin) (heat energy of the cylinder interior gas at the time of start of compression), the amount of a change in the state quantity of the cylinder interior gas attributable to compression in a compression stroke (minute piston work), and the heat generation quantity of a cool flame generated in PCCI combustion prior to autoignition (hot flame) (cool flame heat generation quantity Aqlto). A time when the cylinder interior temperature Tg reaches a predetermined autoignition start temperature Tig is estimated as an autoignition start time (Caig) of the premixed gas mixture related to PCCI combustion. Since the cool flame heat generation quantity Oqlto is taken into consideration, the autoignition start time related to PCCI combustion can be estimated accurately.

摘要翻译： 用于内燃机的气体混合燃烧时间估计装置估计用于PCCI燃烧的预混合气体混合物的温度（即气缸内部温度Tg），同时将其与角度CA相关联，基于状态量 压缩开始时的气缸内部气体（CAin）（压缩开始时的气缸内部气体的热能），由压缩引起的气缸内部气体的状态量的变化量 压缩行程（分钟活塞），以及自燃（热焰）之前的PCCI燃烧产生的冷焰（冷焰产生量Aqlto）的发热量。 气缸内部温度Tg达到预定自燃起始温度Tig的时间被估计为与PCCI燃烧相关的预混合气体混合物的自燃起始时间（Caig）。 由于考虑了冷焰发热量Oqlto，因此可以准确地估计与PCCI燃烧有关的自燃开始时间。

公开(公告)号：US06928361B2

公开(公告)日：2005-08-09

申请号：US10399734

申请日：2001-10-31

申请人： Shigeki Nakayama ,  Toshio Suematsu ,  Takao Fukuma ,  Tomihisa Oda ,  Yasuo Harada ,  Akio Matsunaga ,  Tomoyuki Ono ,  Teruhiko Miyake ,  Yoshitsugu Suzuki

发明人： Shigeki Nakayama ,  Toshio Suematsu ,  Takao Fukuma ,  Tomihisa Oda ,  Yasuo Harada ,  Akio Matsunaga ,  Tomoyuki Ono ,  Teruhiko Miyake ,  Yoshitsugu Suzuki

IPC分类号： F02D45/00 ,  F02D41/14 ,  F02D41/24 ,  F02D41/38 ,  F02D41/40

CPC分类号： F02D41/1408 ,  F02D41/1403 ,  F02D41/1487 ,  F02D41/2422 ,  F02D41/2429 ,  F02D41/2467 ,  F02D2200/0602

摘要： A control apparatus for a motor vehicle is provided in which each of a plurality of output values of the vehicle varies depending upon a plurality of input control parameters for controlling the vehicle. The control apparatus changes the input control parameter or parameters so that each of the output values becomes substantially equal to a corresponding target output value. The control apparatus then determines adapted values of the input control parameters, based on values of the input control parameters obtained when each of the output values becomes substantially equal to the corresponding target output value or falls within a permissible adaptation range of the target output value.

摘要翻译： 提供了一种用于机动车辆的控制装置，其中车辆的多个输出值中的每一个根据用于控制车辆的多个输入控制参数而变化。 控制装置改变输入控制参数或参数，使得每个输出值变得基本上等于相应的目标输出值。 然后，控制装置基于当每个输出值变得基本等于相应的目标输出值时获得的输入控制参数的值，或者落在目标输出值的允许适应范围内，确定输入控制参数的适应值。