公开(公告)号：US06557525B2

公开(公告)日：2003-05-06

申请号：US09928121

申请日：2001-08-10

申请人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani ,  Kazuhiro Ueda ,  Hiroshi Tagami

发明人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani ,  Kazuhiro Ueda ,  Hiroshi Tagami

IPC分类号： F02P500

CPC分类号： F02D13/0207 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0219 ,  F02D13/0261 ,  F02D37/02 ,  F02D41/0057 ,  F02D41/0077 ,  F02D41/3029 ,  F02D41/401 ,  F02D2041/001 ,  F02D2041/389 ,  F02P5/1502 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/18 ,  Y02T10/44 ,  Y02T10/46 ,  Y02T10/47

摘要： There are provided a control system and method and an engine control unit for an internal combustion engine, which are capable of attaining a high combustion efficiency in both of a homogeneous and a stratified combustion modes, thereby improving drivability and fuel economy, as well as a control system for an internal combustion engine which is capable of ensuring stable combustion in both the modes. In one form of the invention, the control system includes an ECU for controlling ignition timing IG of an in-cylinder fuel injection type engine which is operated while switching the combustion mode between the homogeneous and stratified combustion modes. The ECU determines which of the homogeneous and stratified combustion modes should be selected.

摘要翻译： 提供了一种用于内燃机的控制系统和方法和发动机控制单元，其能够在均匀和分层燃烧模式中获得高燃烧效率，从而提高驾驶性能和燃料经济性，以及 能够确保两种模式下的稳定燃烧的内燃机的控制系统。 在本发明的一种形式中，控制系统包括用于控制在同步和分层燃烧模式之间切换燃烧模式的同时操作的缸内燃料喷射型发动机的点火正时IG的ECU。 ECU确定应选择哪种均匀和分层的燃烧模式。

公开(公告)号：US06425366B1

公开(公告)日：2002-07-30

申请号：US09655508

申请日：2000-09-05

申请人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani

发明人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani

IPC分类号： F02D4100

CPC分类号： F02D41/3029 ,  F02B23/101 ,  F02D41/10 ,  F02D41/3076 ,  F02D2041/1432 ,  F02D2250/18

摘要： There is provided a control system for an internal combustion engine which controls the operation of the engine such that the combustion mode of the engine is switched between a stratified combustion mode and a homogeneous combustion mode, and torque generated by the engines is controlled based on a desired torque. The control system has an ECU which calculates a required torque based on results of detection by a crack angle position sensor and an accelerator pedal sensor, and determines a combustion mode according to the required torque. Further, the ECU smoothes the required torque in dependence on the combustion mode, to thereby calculate a smoothed required torque. Then, ECU sets the desired torque based on the smoothed required torque.

摘要翻译： 提供了一种用于内燃机的控制系统，其控制发动机的操作，使得发动机的燃烧模式在分层燃烧模式和均匀燃烧模式之间切换，并且基于发动机的发动机控制扭矩 所需扭矩。 控制系统具有基于裂纹角位置传感器和加速踏板传感器的检测结果来计算要求转矩的ECU，并根据所需转矩来确定燃烧模式。 此外，ECU根据燃烧模式平滑所需的扭矩，从而计算平滑的所需扭矩。 然后，ECU根据平滑的所需扭矩设定所需的转矩。

公开(公告)号：US06379280B1

公开(公告)日：2002-04-30

申请号：US09655442

申请日：2000-09-05

申请人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani

发明人： Ken Ogawa ,  Isao Komoriya ,  Shuji Nagatani

IPC分类号： F02D4110

CPC分类号： F02D41/10 ,  F02D2250/21 ,  Y10T477/675 ,  Y10T477/679

摘要： Control system for an internal combustion engine, for setting a desired torque in response to operating conditions of the engine and controlling torque based on the set desired torque. A crank angle position sensor detects an engine rotational speed. An accelerator position sensor detects an accelerator position. A required torque is calculated based on results of detection by the crank angle position sensor and the accelerator position sensor. Further, the calculated required torque is smoothed. Then, the present value of the required torque calculated at the present time and the smoothed required torque are compared with each other. When it is determined that the engine is being accelerated, an acceleration assist amount is calculated based on a difference value between the present value of the required torque and the smoothed required torque. Then, the acceleration assist amount is added to the smoothed required torque, whereby the desired torque is set.

摘要翻译： 用于内燃机的控制系统，用于响应于发动机的操作条件设定期望的扭矩并且基于设定的期望扭矩控制转矩。 曲柄角位置传感器检测发动机转速。 加速器位置传感器检测加速器位置。 基于曲柄角位置传感器和加速器位置传感器的检测结果来计算所需的扭矩。 此外，所计算的所需扭矩被平滑。 然后，将当前计算的所需扭矩的当前值和平滑的所需转矩进行比较。 当确定发动机正在加速时，基于所需扭矩的当前值和平滑的所需扭矩之间的差值来计算加速度辅助量。 然后，将加速辅助量加到平滑的所需扭矩上，由此设定所需的扭矩。

公开(公告)号：US06655345B2

公开(公告)日：2003-12-02

申请号：US09952679

申请日：2001-09-14

申请人： Ken Ogawa ,  Isao Komoriya ,  Yasunori Ehara

发明人： Ken Ogawa ,  Isao Komoriya ,  Yasunori Ehara

IPC分类号： F02B1700

CPC分类号： F02D13/0219 ,  F01L1/34 ,  F01L2800/00 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0261 ,  F02D41/2422 ,  F02D41/3029 ,  F02D2041/001 ,  F02D2041/389 ,  F02D2250/18 ,  F02M26/01 ,  F02M26/48 ,  F02M26/53 ,  Y02T10/123 ,  Y02T10/18

摘要： A valve timing controller for use in a direct injection type internal combustion engine is provided for enabling a valve timing to be appropriately set in accordance with a load on the engine even in a stratified combustion mode. The internal combustion engine has a valve timing changing mechanism for changing a valve timing of at least one of an intake valve and an exhaust valve so that it is operated in a combustion mode switched between a uniform combustion mode in which a fuel is injected into a cylinder during an intake stroke and a stratified combustion mode in which a fuel is injected into a cylinder in a compression stroke. The valve timing controller comprises a required torque determining unit for determining a required torque outputted by the internal combustion engine based on the engine rotational speed and accelerator pedal opening, and a valve timing determining unit for determining the valve timing in accordance with the required torque and the engine rotational speed.

公开(公告)号：US06536210B1

公开(公告)日：2003-03-25

申请号：US09348257

申请日：1999-07-07

申请人： Isao Komoriya ,  Ken Ogawa ,  Yasunori Ehara ,  Masanori Hayashi

发明人： Isao Komoriya ,  Ken Ogawa ,  Yasunori Ehara ,  Masanori Hayashi

IPC分类号： F01N310

CPC分类号： B01D53/9418 ,  B01D53/9422 ,  B01D53/9472 ,  B01D2251/208 ,  B01D2255/1028 ,  B01J23/002 ,  B01J23/468 ,  B01J23/83 ,  B01J23/894 ,  B01J33/00 ,  B01J37/0244 ,  F01N3/0814 ,  F01N3/0842 ,  Y02T10/24 ,  Y10S502/525

摘要： An exhaust gas purification apparatus for an internal combustion engine capable of lean operation has an Ir-containing selectively reducing catalyst and an NOx adsorptive catalyst. The Ir-containing selectively reducing catalyst in which iridium is an active species thereof and NOx is selectively reduced in a lean atmosphere by HC as a reducer is disposed in an exhaust system of the internal combustion engine. The Ir-containing selectively reducing catalyst is disposed on an upstream side of the exhaust system. The NOx adsorptive catalyst adsorbs NOx in the lean atmosphere and reduce the adsorbed NOx at a theoretical air-fuel ratio or at a rich air-fuel ratio. The NOx adsorptive catalyst is disposed on a downstream side of the exhaust system.

摘要翻译： 能够进行稀薄运转的内燃机的废气净化装置具有含Ir的选择还原催化剂和NOx吸附催化剂。 其中铱是其活性物质的含Ir选择性还原催化剂和在稀气氛中通过作为还原剂的HC选择性还原的NOx在内燃机的排气系统中设置。 含Ir的选择性还原催化剂设置在排气系统的上游侧。 NOx吸附催化剂在贫气氛中吸附NOx，并以理论空燃比或浓空燃比减少吸附的NOx。 NOx吸附催化剂设置在排气系统的下游侧。

公开(公告)号：US06516772B2

公开(公告)日：2003-02-11

申请号：US09904851

申请日：2001-07-16

申请人： Masaki Ueno ,  Yasunori Ehara ,  Masahiro Sato ,  Ken Ogawa ,  Isao Komoriya

发明人： Masaki Ueno ,  Yasunori Ehara ,  Masahiro Sato ,  Ken Ogawa ,  Isao Komoriya

IPC分类号： F02B7508

CPC分类号： F02D41/005 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D37/02 ,  F02D41/0032 ,  F02D41/1497 ,  F02D41/3029 ,  F02D2041/1416 ,  F02M25/08 ,  F02M26/53 ,  F02M2026/009 ,  Y02T10/123 ,  Y02T10/47

摘要： In a direct injection spark ignition engine which is operable in lean-burn operation modes including a pre-mixture combustion mode and a stratified combustion operation mode and a stoichiometric air/fuel ratio operation mode, which are different in the desired air/fuel ratio. The degradation of combustion state is detected through misfire detection and if it is determined to be degraded, the desired air/fuel ratio, the EGR flow rate and the ignition timing are changed when the engine is operated in the stratified combustion operation mode, while the desired air/fuel ratio, the EGR flow rate and the purge flow rate are changed when the engine is operated in the pre-mixture combustion operation mode, thereby ensuring to suppress the combustion state degradation effectively.

摘要翻译： 在直喷式火花点火式发动机中，其可在包括预混合燃烧模式和分层燃烧运行模式以及理想空燃比操作模式的稀薄燃烧运行模式中操作，所述预混合燃烧模式和所需空气/燃料比不同。 通过失火检测来检测燃烧状态的劣化，如果判定为劣化，则在发动机以分层燃烧运转模式运转时改变所需的空燃比，EGR流量和点火正时， 期望的空燃比，EGR流量和排气流量在发动机在预混合燃烧运转模式下运转时发生变化，从而有效地抑制了燃烧状态的劣化。

公开(公告)号：US06513485B2

公开(公告)日：2003-02-04

申请号：US09816140

申请日：2001-03-26

申请人： Ken Ogawa ,  Isao Komoriya

发明人： Ken Ogawa ,  Isao Komoriya

IPC分类号： F02B5704

CPC分类号： F02D41/005 ,  F02B17/005 ,  F02B23/101 ,  F02B2075/125 ,  F02D13/0207 ,  F02D41/047 ,  F02D41/3029 ,  F02D2041/001 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/503 ,  F02D2200/703 ,  F02D2250/31 ,  F02M26/48 ,  F02M26/53 ,  Y02T10/123 ,  Y02T10/47

摘要： There is disclosed a fuel injection control system for an in-cylinder fuel injection internal combustion engine, which is capable of properly determining a fuel injection time period such that the fuel injection time period reflects a fuel pressure and a deposition of fuel, thereby controlling the amount of fuel to be actually injected. Operating conditions of the engine are detected, and a required fuel amount is determined based on the detected operating conditions. At the same time, a deposited-fuel amount, i.e. an amount of fuel deposited in a combustion chamber, is determined based on the detected operating conditions, and the required fuel amount is corrected according to the determined deposited-fuel amount. Further, a fuel pressure of fuel to be injected into the cylinder is detected, and the fuel injection time period is determined by correcting the corrected required fuel amount according to the detected fuel pressure.

摘要翻译： 公开了一种用于缸内燃料喷射内燃机的燃料喷射控制系统，其能够适当地确定燃料喷射时间段，使得燃料喷射时间段反映燃料压力和燃料沉积，从而控制 实际注入的燃料量。 检测发动机的运转状况，根据检测到的运转条件确定所需的燃料量。 同时，基于检测到的运行条件来确定沉积燃料量，即在燃烧室中沉积的燃料量，并且根据所确定的沉积燃料量校正所需燃料量。 此外，检测到要喷射到气缸中的燃料的燃料压力，并且通过根据检测到的燃料压力校正校正的所需燃料量来确定燃料喷射时间段。

公开(公告)号：US06173704B1

公开(公告)日：2001-01-16

申请号：US09133315

申请日：1998-08-13

申请人： Isao Komoriya ,  Ken Ogawa

发明人： Isao Komoriya ,  Ken Ogawa

IPC分类号： F02B4100

CPC分类号： F02D41/0072 ,  B01D53/8696 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/208 ,  F01N2330/06 ,  F02D41/0235 ,  F02D41/1456 ,  F02D41/1475 ,  Y02T10/47

摘要： A system for purifying exhaust gas of an internal combustion engine having a catalyst in an exhaust system of the engine, said catalyst reducing nitrogen oxide when exhaust gas generated by the engine is in an oxidizing state. An EGR mechanism is provided for recirculating a part of the exhaust gas to an intake system of the engine, and is controlled such that a ratio of unsaturated and/or aromatic hydrocarbon concentration to nitrogen oxide concentration in the exhaust gas is at or above a predetermined value. The EGR mechanism is further controlled such that oxygen concentration in the exhaust gas is below a prescribed value. An injection timing mechanism is controlled for the same purpose. With this arrangement, the system improves the NOx purification rate of the catalyst.

摘要翻译： 一种在发动机的排气系统中具有催化剂的内燃机的排气净化系统，所述催化剂还原氮氧化物在发动机产生的废气处于氧化状态。 提供了一种EGR机构，用于将一部分废气再循环到发动机的进气系统，并且被控制为使得排气中的不饱和和/或芳族烃浓度与氮氧化物浓度的比例等于或高于预定 值。 进一步控制EGR机构，使得废气中的氧浓度低于规定值。 为了相同的目的控制喷射定时机构。 通过这样的结构，能够提高催化剂的NOx净化率。

公开(公告)号：US06463906B2

公开(公告)日：2002-10-15

申请号：US09816238

申请日：2001-03-26

申请人： Ken Ogawa ,  Isao Komoriya ,  Kazuhiro Ueda

发明人： Ken Ogawa ,  Isao Komoriya ,  Kazuhiro Ueda

IPC分类号： F02D4140

CPC分类号： F02D41/005 ,  F02B17/005 ,  F02D9/04 ,  F02D41/047 ,  F02D41/3029 ,  F02D41/401 ,  F02D2041/389 ,  F02D2200/0602 ,  F02M26/48 ,  Y02T10/44 ,  Y02T10/47

摘要： There is disclosed a fuel injection control system for an internal combustion engine, which is capable of properly determining fuel injection timing such that the fuel injection timing reflects behaviors of injected fuel, thereby improving drivability and fuel economy. The internal combustion engine of an in-cylinder fuel injection type is operated while switching between a stratified combustion mode in which fuel injection into each cylinder is performed during a compression stroke and a homogenous combustion mode in which the fuel injection into the cylinder is performed during an intake stroke. The fuel injection control system controls fuel injection timing. A required fuel injection time is determined based on detected operating conditions of the engine. A direct ratio and a carry-off ratio are determined based on the operating conditions of the engine. The required fuel injection time is corrected by using the direct ratio and the carry-off ratio, whereby a final fuel injection time period is determined. Based on the engine rotational speed and the final fuel injection time period, the fuel injection timing is determined.

摘要翻译： 公开了一种用于内燃机的燃料喷射控制系统，其能够适当地确定燃料喷射正时，使得燃料喷射正时反映喷射燃料的行为，从而提高驾驶性能和燃料经济性。 缸内燃料喷射型内燃机在压缩冲程期间在其中进行到每个气缸中的燃料喷射的分层燃烧模式和在气缸内的燃料喷射进入气缸的均匀燃烧模式之间切换时进行操作 进气冲程。 燃料喷射控制系统控制燃料喷射正时。 基于检测到的发动机的运行条件来确定所需的燃料喷射时间。 根据发动机的运行条件确定直接比例和起飞比。 所需的燃料喷射时间通过使用直接比率和起飞比来校正，由此确定最终燃料喷射时间段。 基于发动机转速和最终燃料喷射时间段，确定燃料喷射正时。

公开(公告)号：US06857414B2

公开(公告)日：2005-02-22

申请号：US10739399

申请日：2003-12-19

申请人： Ken Ogawa ,  Isao Komoriya ,  Hiroshi Tagami ,  Masahiro Takeuchi ,  Minoru Torii ,  Yuji Fujiki ,  Kunihiro Morishita

发明人： Ken Ogawa ,  Isao Komoriya ,  Hiroshi Tagami ,  Masahiro Takeuchi ,  Minoru Torii ,  Yuji Fujiki ,  Kunihiro Morishita

IPC分类号： F02D41/12 ,  F02D41/30 ,  F02B17/00

CPC分类号： F02D41/123 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/389 ,  F02D2250/21

摘要： There is provided a control system for an internal combustion engine, which is capable of matching an output torque of the engine with a demanded torque excellently when the combustion mode is switched, thereby enhancing drivability. A demanded fuel amount and a demanded torque of the engine are calculated according to detected operating conditions of the engine. A combustion mode is determined to be either the stratified combustion mode or the homogeneous combustion mode according to the demanded torque. A pre-switching demanded fuel injection time period and a pre-switching demanded torque are stored. When the combustion mode is switched, a switching-time demanded fuel amount (limit value) is calculated according to the stored pre-switching demanded fuel injection time period and pre-switching demanded torque, the current demanded torque, and an estimated combustion efficiency parameter.

摘要翻译： 提供了一种用于内燃机的控制系统，其能够在燃烧模式切换时使发动机的输出扭矩与所需扭矩匹配，从而提高驾驶性能。 根据检测到的发动机的运行条件来计算发动机的所需燃料量和要求转矩。 燃烧模式根据要求的扭矩确定为分层燃烧模式或均匀燃烧模式。 存储预切换所需燃料喷射时间段和预切换要求扭矩。 当切换燃烧模式时，根据存储的切换前需求燃料喷射时间段和预切换要求扭矩，当前要求扭矩和估计燃烧效率参数来计算切换时间要求燃料量（极限值） 。