公开(公告)号：US06729303B2

公开(公告)日：2004-05-04

申请号：US09980638

申请日：2001-12-05

申请人： Hiroyuki Itoyama ,  Kensuke Osamura ,  Nobusuke Toukura ,  Hiroshi Iwano

发明人： Hiroyuki Itoyama ,  Kensuke Osamura ,  Nobusuke Toukura ,  Hiroshi Iwano

IPC分类号： F02D900

CPC分类号： F02M63/0225 ,  F02B37/24 ,  F02D41/0072 ,  F02D41/0275 ,  F02D41/1475 ,  F02D43/00 ,  F02D2200/0402 ,  F02D2250/32 ,  F02M26/05 ,  F02M26/10 ,  F02M26/22 ,  F02M26/28 ,  F02M26/47 ,  F02M26/57 ,  F02M47/027 ,  F02M59/366 ,  Y02T10/144 ,  Y02T10/47

摘要： A control unit (41) controls an opening of an exhaust recirculation valve (6) according to a running condition of a diesel engine (1). The control unit (41) calculates an equivalence ratio of the gas mixture supplied to the engine (1) and a target intake fresh air amount taking account of the air amount in the exhaust gas recirculated by the exhaust gas circulation valve (6), based on the opening of the valve (6) and a target excess air factor of the engine (1) set according to the running condition. By controlling a turbocharger (50) according to the target intake fresh air amount, and by controlling the fuel supply mechanism according to a fuel injection amount calculated from the equivalence ratio, the excess air factor of the engine (1) and an exhaust gas recirculation rate of the exhaust gas recirculation valve (6) are respectively controlled to optimum values.

摘要翻译： 控制单元（41）根据柴油发动机（1）的运转状况来控制排气再循环阀（6）的开度。 控制单元（41）基于排气循环阀（6）再循环的废气中的空气量，计算供给到发动机（1）的气体混合物的当量比和目标进气新鲜空气量 在阀（6）的开度和根据运行条件设定的发动机（1）的目标多余空气系数。 通过根据目标进气新鲜空气量控制涡轮增压器（50），并且通过根据从当量比计算的燃料喷射量控制燃料供给机构，发动机（1）的过量空气系数和排气再循环 排气再循环阀（6）的速率分别被控制到最佳值。

公开(公告)号：US06705303B2

公开(公告)日：2004-03-16

申请号：US10093914

申请日：2002-03-11

申请人： Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Kenji Oota

发明人： Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Kenji Oota

IPC分类号： F02M2507

CPC分类号： F02D41/0275 ,  F01N3/0842 ,  F02B29/0406 ,  F02D21/08 ,  F02D23/00 ,  F02D41/005 ,  F02D41/0052 ,  F02M26/05 ,  F02M26/10 ,  F02M26/47 ,  Y02T10/144 ,  Y02T10/47

摘要： In air-fuel ratio control apparatus and method for an internal combustion engine having an EGR valve interposed in an EGR passage between an intake manifold and an exhaust manifold, a target EGR quantity is calculated, a determination is made which of air-fuel ratio feedback controls through an EGR control and through an intake-air quantity is to be executed according to the target EGR quantity, and one of the air-fuel ratio feedback controls is selectively made according to a result of a determination of which of the air-fuel feedback controls is to be executed. During an execution of a rich spike control, the feedback control through the intake-air quantity control is unconditionally executed.

摘要翻译： 在具有插入在进气歧管和排气歧管之间的EGR通路中的EGR阀的内燃机的空燃比控制装置和方法中，计算目标EGR量，确定空燃比反馈 根据目标EGR量执行通过EGR控制和通过进气量的控制，并且根据确定哪个空气燃料的结果选择性地进行空燃比反馈控制之一 反馈控制将被执行。 在执行丰富的尖峰控制期间，无条件地执行通过进气量控制的反馈控制。

公开(公告)号：US06701244B2

公开(公告)日：2004-03-02

申请号：US09989118

申请日：2001-11-21

申请人： Kenji Oota ,  Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Takeshi Ishino

发明人： Kenji Oota ,  Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Takeshi Ishino

IPC分类号： F02D4114

CPC分类号： F02D43/00 ,  F01N3/0842 ,  F02B29/0406 ,  F02B37/24 ,  F02D21/08 ,  F02D41/0007 ,  F02D41/0072 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/18 ,  F02D2041/0017 ,  F02D2041/1432 ,  F02D2200/0402 ,  F02D2250/21 ,  F02M26/05 ,  Y02T10/144 ,  Y02T10/47 ,  Y10T477/68

摘要： A basic target excess air factor tLAMBDA0 and a target fresh air intake amount tQac are set base upon the operation condition of an engine (30). A target excess air factor tLAMBDA is calculated by multiplying the ratio of a real fresh air intake amount rQac as detected by a sensor (16) and the target fresh air intake amount tQac by the basic target excess air factor tLAMBDA0. A fuel injector (9) is controlled so that the amount of fuel injected thereby converges to a target fuel injection amount tQf which corresponds to the target excess air factor tLAMBDA. It is possible to prevent variation of the output torque of the engine (30) accompanying a rich spike by this control, even if the basic target excess air factor tLAMBDA0 varies abruptly, since the fuel injection amount varies in correspondence to the variation of the real fresh air intake amount rQac.

摘要翻译： 基于发动机（30）的运转状态设定基本目标多余空气因子tLAMBDA0和目标新鲜空气吸入量tQac。 通过将由传感器（16）检测到的实际新鲜空气吸入量rQac与目标空气吸入量tQac的比乘以基本目标多余空气因子tLAMBDA0来计算目标多余空气因子tLAMBDA。 控制燃料喷射器（9），使得喷射的燃料量因此收敛到对应于目标多余空气系数tLAMBDA的目标燃料喷射量tQf。 即使基本目标过剩空气因子tLAMBDA0突然变化，也可以防止由该控制引起的伴随着丰富尖峰的发动机（30）的输出转矩的变化，因为燃料喷射量根据实际的变化而变化 新鲜进气量rQac。

公开(公告)号：US06640775B2

公开(公告)日：2003-11-04

申请号：US10042212

申请日：2002-01-11

申请人： Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Kenji Oota

发明人： Hiroyuki Itoyama ,  Hiroshi Iwano ,  Kensuke Osamura ,  Kenji Oota

IPC分类号： F02D4100

CPC分类号： F02D41/1497 ,  F02D21/08 ,  F02D35/0007 ,  F02D41/005 ,  F02D41/0072 ,  F02D2041/0017 ,  F02D2041/1418 ,  F02D2041/389 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02D2200/1004 ,  F02D2200/703 ,  F02D2250/18 ,  F02M26/05 ,  F02M26/10 ,  Y02T10/47

摘要： An air-fuel ratio control system for an internal combustion engine is comprised of an engine condition detecting unit and a control unit. The control unit is arranged to calculate a target engine torque on the basis of an engine operating condition, to calculate a target EGR ratio, a target excess air ratio and a target intake air quantity on the basis of the engine operating condition and the target engine torque, to calculate a target equivalence ratio on the basis of the target EGR ratio and the target excess air ratio, to calculate a target injection quantity on the basis of the engine operating condition and the target equivalence ratio, and to control an air-fuel ratio by bringing a real intake air quantity to the target intake air quantity and by bringing a real fuel injection quantity to the target fuel injection quantity.

公开(公告)号：US06687598B2

公开(公告)日：2004-02-03

申请号：US10107490

申请日：2002-03-28

申请人： Kenji Oota ,  Hiroshi Iwano ,  Hiroyuki Itoyama ,  Takeshi Ishino ,  Kensuke Osamura

发明人： Kenji Oota ,  Hiroshi Iwano ,  Hiroyuki Itoyama ,  Takeshi Ishino ,  Kensuke Osamura

IPC分类号： F02D3302

CPC分类号： F02D41/0002 ,  F02D35/0023 ,  F02D41/005 ,  F02D41/0072 ,  F02D41/1458 ,  F02D41/1497 ,  F02D41/263 ,  F02D2200/0402 ,  F02D2200/0614 ,  F02D2200/1004 ,  F02D2250/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A method for controlling an engine comprises establishing a torque correction coefficient (KA) to compensate for reducing effect of available engine torque in operating range of different excess air ratios (&lgr;) that are lower than a predetermined value (unity=1). An initial base desired in-cylinder air mass (tQacb) is determined based on a requested engine torque (tTe). A desired excess air ratio (t&lgr;) is determined. The initial base desired in-cylinder air mass (tQacb) is adjusted with at least the desired excess air ratio (t&lgr;) and the correction coefficient (KA) to generate a desired in-cylinder air mass (tQac). A desired injected fuel mass (tQf) is controlled based on the desired in-cylinder air mass (tQac) to deliver the requested engine torque (tTe) with the desired excess air ratio (t&lgr;) held accomplished.

摘要翻译： 用于控制发动机的方法包括建立扭矩校正系数（KA），以补偿在低于预定值（unity = 1）的不同过量空气比（λ）的操作范围内可用的发动机转矩的减小效果。 基于要求的发动机扭矩（tTe）确定期望的缸内空气质量（tQacb）的初始底座。 确定所需的过量空气比（tlambda）。 用至少所需的过量空气比（tlambda）和校正系数（KA）来调节所需的缸内空气质量（tQacb）的初始底部以产生所需的缸内空气质量（tQac）。 基于期望的缸内空气质量（tQac）来控制期望的喷射燃料质量（tQf），以便以所保持的期望的过量空气比（tlambda）递送所要求的发动机扭矩（t Te）。

公开(公告)号：US06412469B1

公开(公告)日：2002-07-02

申请号：US09620973

申请日：2000-07-20

申请人： Hiroyuki Itoyama ,  Kensuke Osamura ,  Takashi Shirakawa ,  Manabu Miura

发明人： Hiroyuki Itoyama ,  Kensuke Osamura ,  Takashi Shirakawa ,  Manabu Miura

IPC分类号： F02D4104

CPC分类号： F02D41/008 ,  F02D41/1497 ,  F02D41/403 ,  F02D2041/288 ,  Y02T10/44

摘要： A fuel injection control system is arranged to decide the execution of a pilot fuel injection based on evaluation functions indicative of degree of a pilot fuel injection demand, to decide an engine operating condition, to calculate a fuel injection quantity for each cylinder when the engine operating condition is in the predetermined low-load operating region, to calculate a pilot fuel injection quantity for each cylinder by multiplying a predetermined ratio to the fuel injection quantity in the predetermined low-load operating region and when the pilot fuel injection is executed, and to calculate a main fuel injection quantity by subtracting the pilot fuel injection quantity from the fuel injection quantity. Therefore, this arrangement enables accurate decision as to the execution of the pilot fuel injection and proper control of pilot and main fuel injection quantities.

摘要翻译： 燃料喷射控制系统被布置成基于指示引燃燃料喷射需求程度的评估功能来决定执行先导燃料喷射的执行，以决定发动机工作状态，以在发动机运行时计算每个气缸的燃料喷射量 条件在预定的低负荷运行区域中，通过将预定比率与预定的低负荷运行区域中的燃料喷射量相乘并且执行先导燃料喷射时，计算每个气缸的先导燃料喷射量，并且 通过从燃料喷射量减去先导燃料喷射量来计算主燃料喷射量。 因此，这种布置使得能够准确地确定先导燃料喷射的执行和飞行员和主燃料喷射量的适当控制。

公开(公告)号：US20140165939A1

公开(公告)日：2014-06-19

申请号：US14232381

申请日：2012-07-02

申请人： Hironori Ito ,  Kenji Ariga ,  Ken Shiozawa ,  Takahiro Miura ,  Motomu Kitamura ,  Naoki Osada ,  Masahiro Iriyama ,  Masahiro Arai ,  Hiroyuki Itoyama ,  Hiroshi Abe

发明人： Hironori Ito ,  Kenji Ariga ,  Ken Shiozawa ,  Takahiro Miura ,  Motomu Kitamura ,  Naoki Osada ,  Masahiro Iriyama ,  Masahiro Arai ,  Hiroyuki Itoyama ,  Hiroshi Abe

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L1/356 ,  F01L13/00 ,  F01L2001/34463 ,  F01L2001/34466 ,  F01L2250/04 ,  F01L2760/001 ,  F01L2800/01 ,  F01L2800/03 ,  F02D13/02 ,  F02D13/0215 ,  F02D41/042 ,  F02D2041/001 ,  F02N19/004

摘要： To achieve an intermediate lock state in a short period when an engine is stopped and improve the accuracy of confirmation of the intermediate lock state, an engine valve timing control apparatus includes a variable valve timing mechanism configured to vary engine valve timing, and an intermediate lock mechanism configured to restrict relative rotation positions of a first and a second rotor of the valve timing mechanism at an intermediate lock position for starting the engine. Upon detection of an engine stop request, the valve timing mechanism and the intermediate lock mechanism are driven and controlled for establishing an intermediate lock state. When a predetermined period from detection of the engine stop request has expired without detecting the intermediate lock state within the predetermined period, an engine stopping process is executed. Even after the engine stopping process has been executed, monitoring of the intermediate lock state is continued.

摘要翻译： 为了在发动机停止时在短时间内实现中间锁定状态并提高中间锁定状态的确认精度，发动机气门正时控制装置包括构造成改变发动机气门正时的可变气门正时机构和中间锁 机构，其构造成将气门正时机构的第一和第二转子的相对旋转位置限制在用于起动发动机的中间锁定位置。 在检测到发动机停止请求时，驱动和控制气门正时机构和中间锁定机构以建立中间锁定状态。 当发动机停止请求的检测的预定期间在规定期间内没有检测出中间锁定状态的期间过期时，执行发动机停止处理。 即使在执行发动机停止处理之后，继续监视中间锁定状态。

公开(公告)号：US07305828B2

公开(公告)日：2007-12-11

申请号：US11236787

申请日：2005-09-28

申请人： Hikari Todoroki ,  Hiroyuki Itoyama

发明人： Hikari Todoroki ,  Hiroyuki Itoyama

IPC分类号： F02B37/00 ,  F02B37/18 ,  F02B37/22 ,  F02D21/08 ,  F02D23/00 ,  F02D41/02 ,  F02M25/07

CPC分类号： F02D41/0065 ,  F02B29/0412 ,  F02B37/001 ,  F02B37/007 ,  F02B37/18 ,  F02B37/22 ,  F02B37/24 ,  F02B2275/14 ,  F02D9/04 ,  F02D23/02 ,  F02D41/0085 ,  F02D41/187 ,  F02M26/08 ,  F02M26/38 ,  F02M26/48 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/47

摘要： A controller (70) controls the boost pressure of an internal combustion engine (60) comprising two intake/exhaust units, each intake/exhaust unit comprising a turbocharger (10) which supercharges intake air in an intake passage (20) using exhaust energy in an exhaust passage (30), and an exhaust gas recirculating device (40, 41) which recirculates a part of the exhaust gas in the exhaust passage to the intake passage. The controller (70) calculates an opening difference between valves in the two units (S121), and controls a regulating device (13) in each of the two units on the basis of this opening difference (S123-S125). As a result, the boost pressures of the turbochargers (10) match, and hence an equal amount of NOx can be discharged from each exhaust passage (30), and the NOx can be purified favorably by a catalyst.

摘要翻译： 控制器（70）控制包括两个进气/排气单元的内燃机（60）的增压压力，每个进气/排气单元包括涡轮增压器（10），其使用排气能量对进气通道（20）中的进气进行增压 排气通道（30）和废气再循环装置（40,41），其将排气通道中的一部分废气再循环到进气通道。 控制器（70）计算两个单元中的阀之间的开度差（S121），并且基于该开度差来控制两个单元中的每一个中的调节装置（S133〜125）。 结果，涡轮增压器（10）的增压压力相匹配，因此能够从各排气通路（30）排出等量的NOx，可以通过催化剂使NOx净化。

公开(公告)号：US06990802B2

公开(公告)日：2006-01-31

申请号：US10407332

申请日：2003-04-07

申请人： Hiroyuki Itoyama ,  Yasuhisa Kitahara

发明人： Hiroyuki Itoyama ,  Yasuhisa Kitahara

IPC分类号： F01N3/00

CPC分类号： F01N3/0842 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N9/002 ,  F01N13/009 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2330/06 ,  F01N2570/14 ,  F02B37/00 ,  F02D41/029 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/10 ,  Y02T10/47

摘要： A particulate deposit amount Spm on a particulate filter disposed in an exhaust passage is estimated during a usual period different from a regeneration period of the particulate filter and during the regeneration period thereof respectively.An increase value Dpm per unit time of the Spm during the usual period is estimated based upon an engine operating condition and a total amount of the Spm is determined by integration thereof (S15, 16).On the other hand, a particulate deposit amount Spm decreasing by burning during the regeneration period is determined by, one by one, subtracting a decrease value Dpm per unit time estimated based upon a particulate deposit amount Spmi that is determined by the above integration at a starting point of the regeneration period from the Spmi (S12, 17).

摘要翻译： 在与微粒过滤器的再生期间和再生期间分别不同的通常期间，估计设置在排气通道中的颗粒过滤器上的颗粒沉积量Spm。 根据发动机工作条件来估计通常期间的Spm每单位时间的增加值Dpm，并且通过积分确定Spm的总量（S 15,16）。 另一方面，在再生期间通过燃烧减少的颗粒物沉积量Spm通过逐个减去基于由上述积分确定的颗粒沉积量Spmi估计的每单位时间的减小值Dpm来确定 来自Spmi的再生期的起点（S 12,17）。

公开(公告)号：US06917873B2

公开(公告)日：2005-07-12

申请号：US10270244

申请日：2002-10-15

申请人： Hiroyuki Itoyama

发明人： Hiroyuki Itoyama

IPC分类号： F02B37/00 ,  F02B37/007 ,  F02B37/18 ,  F02B37/24 ,  F02B39/16 ,  F02D21/08 ,  F02D23/00 ,  F02D23/02 ,  F02D41/00 ,  F02M25/07 ,  G06F7/00

CPC分类号： F02D41/0072 ,  F01N13/107 ,  F02B29/0406 ,  F02B37/007 ,  F02B37/24 ,  F02M26/08 ,  F02M26/23 ,  F02M26/33 ,  F02M26/43 ,  Y02T10/144 ,  Y02T10/47

摘要： A vehicle system controls a compression ignition internal combustion engine equipped with a supercharger system including a plurality of superchargers. The compression ignition internal combustion engine has an exhaust gas recirculation (EGR) system. The vehicle system determines a desired intake manifold supercharging state (tQac) and a desired EGR rate (Megr). The vehicle system includes control logics, each having a first input parameter and a second input parameter, for determining desired set points (Rvnt1 & Rvnt2) for the plurality of superchargers, respectively. The desired set points are used to control the plurality of superchargers, respectively. The vehicle system also includes control logic for determining the first input parameters in response to the desired intake manifold supercharging state. The vehicle system further includes control logic for determining the second input parameters in response to the desired EGR rate.

摘要翻译： 车辆系统控制配备有包括多个增压器的增压器系统的压缩点火内燃机。 压缩点火式内燃机具有废气再循环（EGR）系统。 车辆系统确定期望的进气歧管增压状态（tQac）和期望的EGR率（Megr）。 车辆系统包括分别具有第一输入参数和第二输入参数的控制逻辑，用于分别确定多个增压器的期望设定点（Rvnt 1＆Rvnt 2）。 所需的设定点分别用于控制多个增压器。 车辆系统还包括用于响应于期望的进气歧管增压状态来确定第一输入参数的控制逻辑。 车辆系统还包括用于响应于期望的EGR率来确定第二输入参数的控制逻辑。