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    Gas-mixture-state estimation apparatus for internal combustion engine and emission-generation-amount estimation apparatus
    51.
    发明授权
    Gas-mixture-state estimation apparatus for internal combustion engine and emission-generation-amount estimation apparatus 有权
    内燃机用气体混合状态推定装置和发光量估计装置

    公开(公告)号：US07848871B2

    公开(公告)日：2010-12-07

    申请号：US11886595

    申请日：2006-03-24

    申请人： Tomomi Onishi ,  Shigeki Nakayama

    发明人： Tomomi Onishi ,  Shigeki Nakayama

    IPC分类号： B60T7/12 ,  F02B23/00

    CPC分类号： F02D41/402 ,  F02D35/02 ,  F02D35/024 ,  F02D35/026 ,  F02D41/1458 ,  F02D41/1462 ,  F02D41/1467 ,  F02D2041/1433 ,  F02D2250/31 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/44

    摘要： This apparatus equally divides an injection period TAU into three periods; i.e., front, intermediate, and rear periods, and assumes that first injection (mass Q(1)) corresponding to the “front period” is executed at one time at a fuel injection start timing, second injection (mass Q(2)) corresponding to the “intermediate period” is executed at one time when ⅓ TAU has elapsed after the first injection, and third injection (mass Q(3)) corresponding to the “rear period” is executed at one time when ⅓ TAU has elapsed after the second injection. A first gas mixture based on the first injection, a second gas mixture based on the second injection, and a third gas mixture based on the third injection are individually handled, and the excess air ratio of gas mixture, the state (temperature, etc.) of gas mixture, and the emission generation amounts in gas mixture are estimated for each gas mixture.

    摘要翻译： 该装置将喷射周期TAU等分成三个周期; 即，在燃料喷射开始时刻，第二次喷射（质量Q（2））中，一次执行与“前期”对应的第一喷射（质量Q（1）），即前，中，后期间， 在第一次注射之后经过1/3NUU时，一次执行与“中间期间”对应的“中间期间”，并且在经过了1/3TU后，一次执行与“后期”对应的第三次注入（质量Q（3）） 第二次注射。 分别处理基于第一次注入的第一气体混合物，基于第二次喷射的第二气体混合物和基于第三次喷射的第三气体混合物，并且混合气体的过量空气比，状态（温度等） ），并且对于每种气体混合物估计气体混合物中的排放量。

    EXHAUST-GAS RECIRCULATION APPARATUS AND EXHAUST-GAS RECIRCULATION FLOW RATE ESTIMATION METHOD FOR INTERNAL COMBUSTION ENGINES
    52.
    发明申请
    EXHAUST-GAS RECIRCULATION APPARATUS AND EXHAUST-GAS RECIRCULATION FLOW RATE ESTIMATION METHOD FOR INTERNAL COMBUSTION ENGINES 审中-公开
    排气再循环装置和排气回送流量估算方法内燃机

    公开(公告)号：US20100199639A1

    公开(公告)日：2010-08-12

    申请号：US12678817

    申请日：2008-09-16

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

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

    IPC分类号： F02M25/07 ,  F02D41/14 ,  G01M15/10

    CPC分类号： F02D41/1445 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F02B29/0406 ,  F02D9/04 ,  F02D41/0072 ,  F02D41/144 ,  F02D41/18 ,  F02M26/05 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/23 ,  F02M26/38 ,  F02M26/46 ,  F02M26/47 ,  Y02T10/47

    摘要： An exhaust-gas recirculation apparatus for an internal combustion engine has a high-pressure EGR passage (20), a low-pressure EGR passage (21), a high-pressure EGR valve (22), and a low-pressure EGR valve (24) and performs open-loop control to the low-pressure EGR valve (24). The flow rate (Ghpl) of EGR gas flowing in the high-pressure EGR passage (20) and the flow rate (Glpl) of EGR gas flowing in the low-pressure EGR gas (21) are estimated based on the oxygen concentration (O2s) in the gas at the portion of the intake passage (3) downstream of the portion to which exhaust gas is delivered from the high-pressure EGR passage (2), the flow rate (Gdpf) of the gas passing through an exhaust-gas purifying catalyst unit (11) provided in the exhaust passage between the exhaust-gas inlets of the high-pressure EGR passage (20) and the low-pressure EGR passage (21), the flow rate (Gafm) of fresh air, and the fuel amount (Q) supplied to the cylinders (2) of the internal combustion engine per unit time.

    摘要翻译： 用于内燃机的废气再循环装置具有高压EGR通路（20），低压EGR通路（21），高压EGR阀（22）和低压EGR阀（ 24），对低压EGR阀（24）进行开环控制。 基于氧浓度（O2s）估计在高压EGR通路（20）中流动的EGR气体的流量（Ghpl）和在低压EGR气体（21）中流动的EGR气体的流量（Glpl） ）在从高压EGR通路（2）排出废气部分的下游侧的进气通路（3）的部分的气体中，通过排气的气体的流量（Gdpf） 设置在高压EGR通路（20）和低压EGR通路（21）的排气入口之间的排气通路中的净化催化剂单元（11），新鲜空气的流量（Gafm） 每单位时间供给到内燃机的气缸（2）的燃料量（Q）。

    FEEDBACK CONTROL SYSTEM
    53.
    发明申请
    FEEDBACK CONTROL SYSTEM 失效
    反馈控制系统

    公开(公告)号：US20100174471A1

    公开(公告)日：2010-07-08

    申请号：US12601424

    申请日：2008-05-22

    申请人： Shigeki Nakayama

    发明人： Shigeki Nakayama

    IPC分类号： F02D41/00 ,  F02B33/00

    CPC分类号： F02D41/1401 ,  F02D41/0007 ,  F02D41/0072 ,  F02D2041/1409 ,  F02D2041/1422 ,  F02M26/49

    摘要： In a feedback control system in which a base gain having a constant value or a variable gain is set as a feedback gain in accordance with the state of the system and an input value is calculated based on a function having, as variables, a proportional term and an integral term, the integral term is recalculated when a discriminant value obtained by substituting a base proportional term calculated using the base gain for the proportional term and a normal integral term calculated using the feedback gain for the integral term in the function is larger than an upper limit value. The integral term is recalculated in such a way that a value obtained by substituting the base proportional term for the proportional term and the recalculated integral term for the integral term in the function becomes equal to or smaller than the upper limit value.

    摘要翻译： 在根据系统的状态将具有常数值或可变增益的基本增益设定为反馈增益的反馈控制系统中，基于具有作为变量的比例项的函数来计算输入值 和积分项，当通过将使用基准增益计算的基准比例项代入比例项而获得的判别式值和使用函数中的积分项计算的正态积分项大于 一个上限值。 积分项被重新计算，使得通过将比例项的基本比例项替换为函数中的积分项的重新计算的积分项而获得的值变为等于或小于上限值。

    Exhaust gas purification apparatus for internal combustion engine
    56.
    发明授权
    Exhaust gas purification apparatus for internal combustion engine 有权
    内燃机废气净化装置

    公开(公告)号：US09238985B2

    公开(公告)日：2016-01-19

    申请号：US14409652

    申请日：2012-06-20

    申请人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

    发明人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

    IPC分类号： G01N21/00 ,  F01N3/20 ,  B01D53/94

    CPC分类号： F01N3/208 ,  B01D53/9431 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

    摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision, an amount of variation over a predetermined time in a reducing agent amount adsorbed to a selective reduction type NOx catalyst is calculated from an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously by a supply unit, which is calculated on the basis of a temperature of the selective reduction type NOx catalyst, and the reducing agent amount adsorbed to the selective reduction type NOx catalyst, whereupon a reducing agent amount adsorbed to the selective reduction type NOx catalyst following the elapse of the predetermined time is estimated by adding the variation amount to the reducing agent amount adsorbed to the selective reduction type NOx catalyst.

    摘要翻译： 为了以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，从吸附到选择还原型NOx催化剂的还原剂量中的预定时间内的变化量从上限值 当由选择还原型NOx催化剂的温度计算的供应单元连续供给还原剂时吸附到选择还原型NOx催化剂上的还原剂量和还原剂吸附量的还原剂量 涉及选择还原型NOx催化剂，通过将吸附在选择还原型NOx催化剂上的还原剂量的变化量加到预定时间后吸附到选择还原型NOx催化剂上的还原剂量来估计。

    EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    57.
    发明申请
    EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
    用于内燃机的排气净化装置

    公开(公告)号：US20150238904A1

    公开(公告)日：2015-08-27

    申请号：US14409692

    申请日：2012-06-20

    申请人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

    发明人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

    IPC分类号： B01D53/94

    CPC分类号： B01D53/9495 ,  B01D53/9431 ,  F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0416 ,  F01N2900/08 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

    摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision while maintaining a condition in which NOx can be purified by the selective reduction type NOx catalyst, the present invention includes: an upper limit value calculation unit that calculates an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously during a steady state operation in an internal combust ion engine; and an estimation unit that estimates an upper limit value calculated by the upper limit value calculation unit when the reducing agent is supplied for at least a predetermined time during the steady state operation in the internal combustion engine to be the reducing agent amount adsorbed to the selective reduction type NOx catalyst at that time.

    摘要翻译： 为了在保持能够通过选择还原型NOx催化剂净化NOx的条件的同时，以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，本发明包括：上限值计算单元 计算在内部燃烧式离子发动机的稳态运行中连续供给还原剂时吸附到所述选择还原型NOx催化剂的还原剂量的上限值; 以及估计单元，其估计在所述内燃机的稳态运行期间将所述还原剂供给至少预定时间时由所述上限值计算单元计算的上限值作为所述选择性吸附剂的还原剂量 此时还原型NOx催化剂。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    60.
    发明申请
    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号：US20130323130A1

    公开(公告)日：2013-12-05

    申请号：US13379467

    申请日：2011-02-18

    申请人： Junichi Matsuo ,  Hiromasa Nishioka ,  Katsuhiko Oshikawa ,  Yoshihisa Tsukamoto ,  Hiroshi Otsuki ,  Shigeki Nakayama

    发明人： Junichi Matsuo ,  Hiromasa Nishioka ,  Katsuhiko Oshikawa ,  Yoshihisa Tsukamoto ,  Hiroshi Otsuki ,  Shigeki Nakayama

    IPC分类号： F01N3/08

    CPC分类号： F01N3/0814 ,  B01D53/9418 ,  B01D53/945 ,  B01D53/9495 ,  B01D2255/104 ,  B01D2255/2092 ,  B01D2255/91 ,  B01J23/50 ,  B01J35/0006 ,  B01J37/0242 ,  B01J37/0244 ,  Y02T10/22 ,  Y02T10/24

    摘要： An exhaust purification system in which when an air-fuel ratio of exhaust gas is leaner than a stoichiometric air-fuel ratio, a silver-alumina-based catalyst device releases adsorbed NO2 at a first set temperature and releases adsorbed NO at a second set temperature which is lower than the first set temperature. When the air-fuel ratio of the exhaust gas is leaner than the stoichiometric air-fuel ratio and the silver-alumina-based catalyst device is a third set temperature which is lower than the second set temperature, a temperature rise of the silver-alumina-based catalyst device is suppressed to maintain the silver-alumina-based catalyst device near the third set temperature, and at least part of the NO which is adsorbed at the silver-alumina-based catalyst device is oxidized to NO2 to be adsorbed at the silver-alumina-based catalyst device, then the suppression of the temperature rise of the silver-alumina-based catalyst device is lifted.

    摘要翻译： 一种排气净化系统，其中当排气的空燃比比化学计量空燃比更稀的时，银 - 氧化铝基催化剂装置在第一设定温度下释放吸附的NO 2，并在第二设定温度下释放吸附的NO 低于第一设定温度。 当排气的空燃比比化学计量空燃比稀的时，银 - 氧化铝系催化剂装置为比第二设定温度低的第三设定温度时，银 - 氧化铝的升温 的催化剂装置被抑制以将银 - 氧化铝基催化剂装置保持在第三设定温度附近，并且吸附在银 - 氧化铝基催化剂装置上的至少一部分NO被氧化成NO 2以被吸附在 银 - 氧化铝基催化剂装置，则提升了银 - 氧化铝基催化剂装置的温度升高抑制。