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1. 发明申请

US20100199639A1 EXHAUST-GAS RECIRCULATION APPARATUS AND EXHAUST-GAS RECIRCULATION FLOW RATE ESTIMATION METHOD FOR INTERNAL COMBUSTION ENGINES 审中-公开
标题翻译：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）。

2. 发明授权

US08706385B2 Exhaust gas recirculation device of internal combustion engine, and control method for the device 有权
标题翻译：内燃机废气再循环装置及装置的控制方法
公开(公告)号：US08706385B2
公开(公告)日：2014-04-22
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： B60T7/12 , G05D1/00 , G06F7/00 , G06F17/00 , F02M25/07
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）。

3. 发明申请

US20100179745A1 EXHAUST GAS RECIRCULATION DEVICE OF INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD FOR THE DEVICE 有权
标题翻译：内燃机排气再循环装置及装置的控制方法
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）。

4. 发明申请

US20110054762A1 EXHAUST GAS RECIRCULATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气回收装置
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）。

5. 发明申请

US20100000213A1 EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME 有权
标题翻译：用于内燃机的排气控制系统及其控制方法
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。

6. 发明授权

US08108129B2 Exhaust gas recirculation apparatus for an internal combustion engine 有权
标题翻译：用于内燃机的废气再循环装置
公开(公告)号：US08108129B2
公开(公告)日：2012-01-31
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： B60T7/12 , G05D1/00 , G06F7/00 , G06F17/00 , F02B47/08 , 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）。

7. 发明授权

US08453446B2 Exhaust gas control system for internal combustion engine and method for controlling the same 有权
标题翻译：内燃机排气控制系统及其控制方法
公开(公告)号：US08453446B2
公开(公告)日：2013-06-04
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： F02B33/44 , F02B77/08 , F02B47/08 , F02M25/07 , F02D17/04
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。

8. 发明申请

US20100050999A1 EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME 有权
标题翻译：用于内燃机的排气再循环系统及其控制方法
公开(公告)号：US20100050999A1
公开(公告)日：2010-03-04
申请号：US12522631
申请日：2008-01-11
申请人： Hiroki Murata , Masahiro Nagae , Hajime Shimizu , Shigeki Nakayama , Tomomi Onishi
发明人： Hiroki Murata , Masahiro Nagae , Hajime Shimizu , Shigeki Nakayama , Tomomi Onishi
IPC分类号： F02M25/07 , F02B33/44 , F02B47/08
CPC分类号： F02D41/0052 , F02D9/04 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , F02M26/53 , Y02T10/47
摘要： In an exhaust gas recirculation system for an internal combustion engine, which includes a turbocharger; a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; and a low-pressure EGR valve, first, the opening amount of the high-pressure EGR valve is controlled in a feedback manner, and, then, the opening amount of a low-pressure EGR valve is controlled in a feedback manner in a transitional operation period in which the operation mode of the internal combustion engine is changing. In this way, the intake air amount is promptly adjusted to the target intake air amount without causing hunting.
摘要翻译：在用于内燃机的排气再循环系统中，其包括涡轮增压器; 高压EGR单元; 低压EGR单元; 高压EGR阀; 和低压EGR阀，首先以反馈方式控制高压EGR阀的开度，然后以过渡状态的反馈方式控制低压EGR阀的开度内燃机的运转模式变化的运转期间。以这种方式，将吸入空气量迅速地调节到目标吸入空气量而不引起狩猎。

9. 发明授权

US07848871B2 Gas-mixture-state estimation apparatus for internal combustion engine and emission-generation-amount estimation apparatus 有权
标题翻译：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。

10. 发明授权

US08457905B2 Soot discharge estimating device for internal combustion engines 失效
标题翻译：内燃机烟灰排放估算装置
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。

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