公开(公告)号：US07398772B2

公开(公告)日：2008-07-15

申请号：US11633035

申请日：2006-12-04

申请人： Yukihiro Nakasaka ,  Toshiaki Asada ,  Naohide Fuwa ,  Shinji Sadakane

发明人： Yukihiro Nakasaka ,  Toshiaki Asada ,  Naohide Fuwa ,  Shinji Sadakane

IPC分类号： F02D41/00

CPC分类号： F02D41/0085 ,  F01L1/053 ,  F01L1/34 ,  F01L9/04 ,  F01L13/0036 ,  F01L13/0042 ,  F01L2800/00 ,  F02D13/023 ,  F02D13/0238 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/1405 ,  F02D41/1458 ,  F02D41/2441 ,  F02D41/2454 ,  F02D41/2464 ,  F02D41/2467 ,  F02D41/40 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/0402 ,  Y02T10/18 ,  Y02T10/42

摘要： A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor so as to minimize a variation in an fuel injection quantity between the plurality of cylinders by that exhaust gas air-fuel ratio. That is, the exhaust gas air-fuel ratio of the plurality of cylinders, in which the valve opening characteristics of the intake valve and an exhaust valve are set such that the intake air amount to be introduced into the plurality of cylinders is limited by the opening amount of a throttle valve, for example, and not limited by the valve opening characteristics of the intake valve or the exhaust valve is calculated, and the variation in the fuel injection quantity among the plurality of cylinders is then reduced by that exhaust gas air-fuel ratio. Then, the variation in valve opening characteristics among the cylinders is reduced.

摘要翻译： 控制装置基于从空气调节装置输出的值，计算多个气缸的排气空燃比，其中进气门的操作角度被设定为预定的操作角度，例如最大操作角度， 燃料比传感器，以便通过该排气空燃比使多个气缸之间的燃料喷射量的变化最小化。 也就是说，其中进气门和排气门的开阀特性被设定为使得被引入多个气缸的进气量被限制在多个气缸中的排气空燃比被 计算节气门的打开量，例如不受进气门或排气门的开阀特性的限制，然后通过排气气体减少多个气缸中的燃料喷射量的变化 - 燃料比。 然后，气缸中的开阀特性的变化减小。

公开(公告)号：US20070021900A1

公开(公告)日：2007-01-25

申请号：US11527689

申请日：2006-09-27

申请人： Naohide Fuwa ,  Hisayo Dohta

发明人： Naohide Fuwa ,  Hisayo Dohta

IPC分类号： F02D43/00 ,  F02D41/00

CPC分类号： F02D41/182 ,  F01L3/00 ,  F01L9/04 ,  F01L13/0015 ,  F01L2009/0426 ,  F01L2800/00 ,  F02D41/0002 ,  F02D41/0055 ,  F02D41/2422 ,  F02D41/2464 ,  F02D2041/001

摘要： A control apparatus for an internal combustion engine provided with a fuel supply mechanism capable of adjusting a fuel supply amount includes a flow rate sensor that detects an intake air flow rate that represents a flow rate of air admitted into a combustion chamber of the internal combustion engine, a pressure sensor that detects a pressure of the air admitted into the combustion chamber of the internal combustion engine, a characteristic change estimation unit that estimates a characteristic change of the internal combustion engine in accordance with the intake air flow rate detected by the flow rate sensor and the intake air pressure detected by the pressure sensor, and a fuel supply mechanism control unit that controls the fuel supply mechanism. The fuel supply mechanism control unit controls the fuel supply mechanism such that the characteristic change in the internal combustion engine is compensated in accordance with an estimation performed by the characteristic change estimation unit.

公开(公告)号：US07162356B2

公开(公告)日：2007-01-09

申请号：US10854712

申请日：2004-05-27

申请人： Naohide Fuwa ,  Hisayo Dohta

发明人： Naohide Fuwa ,  Hisayo Dohta

IPC分类号： B60T7/12 ,  F02M51/00

CPC分类号： F02D41/182 ,  F01L3/00 ,  F01L9/04 ,  F01L13/0015 ,  F01L2009/0426 ,  F01L2800/00 ,  F02D41/0002 ,  F02D41/0055 ,  F02D41/2422 ,  F02D41/2464 ,  F02D2041/001

摘要： A control apparatus for an internal combustion engine provided with a fuel supply mechanism capable of adjusting a fuel supply amount includes a flow rate sensor that detects an intake air flow rate that represents a flow rate of air admitted into a combustion chamber of the internal combustion engine, a pressure sensor that detects a pressure of the air admitted into the combustion chamber of the internal combustion engine, a characteristic change estimation unit that estimates a characteristic change of the internal combustion engine in accordance with the intake air flow rate detected by the flow rate sensor and the intake air pressure detected by the pressure sensor, and a fuel supply mechanism control unit that controls the fuel supply mechanism. The fuel supply mechanism control unit controls the fuel supply mechanism such that the characteristic change in the internal combustion engine is compensated in accordance with an estimation performed by the characteristic change estimation unit.

摘要翻译： 具有能够调节燃料供给量的燃料供给机构的内燃机的控制装置包括流量传感器，其检测表示进入内燃机的燃烧室的空气的流量的进气流量 检测进入到内燃机的燃烧室的空气的压力的压力传感器，根据由流量检测出的进气流量来估计内燃机的特性变化的特性变化估计单元 传感器和由压力传感器检测到的进气压力，以及控制燃料供给机构的燃料供给机构控制单元。 燃料供给机构控制单元控制燃料供给机构，使得根据由特征变化估计单元执行的估计来补偿内燃机的特性变化。

公开(公告)号：US20060191502A1

公开(公告)日：2006-08-31

申请号：US11360763

申请日：2006-02-24

申请人： Naohide Fuwa

发明人： Naohide Fuwa

IPC分类号： F01L1/34

CPC分类号： F01L13/0015 ,  F01L2800/01 ,  F02D13/023 ,  F02D13/0261 ,  F02D41/042 ,  F02D41/06 ,  F02D2013/0292 ,  F02N19/004 ,  Y02T10/18

摘要： An electronic control unit sets a target valve actuation parameter in accordance with an operating state of an internal combustion engine, and controls a variable valve actuation mechanism such that an actual valve actuation parameter of an intake valve becomes equal to the target valve actuation parameter. The variable valve actuation mechanism changes a valve actuation parameter of the intake valve. From before an initial fuel injection is performed to when a starting process of the engine is completed, the electronic control unit sets the target valve actuation parameter to an engine starting valve actuation parameter at which the valve closing timing of the intake valve coincides with or is close to a bottom dead center of the intake valve.

摘要翻译： 电子控制单元根据内燃机的运转状态来设定目标阀致动参数，并控制可变气门致动机构，使得进气门的实际气门致动参数等于目标气门致动参数。 可变阀致动机构改变进气门的阀致动参数。 从执行初始燃料喷射到发动机的起动过程完成之前，电子控制单元将目标阀致动参数设定为进气门关闭正时重合的发动机起动阀启动参数，或者是 靠近进气阀的下止点。

公开(公告)号：US20060052216A1

公开(公告)日：2006-03-09

申请号：US11218590

申请日：2005-09-06

申请人： Hibiki Ueura ,  Naohide Fuwa

发明人： Hibiki Ueura ,  Naohide Fuwa

IPC分类号： F16H59/60

CPC分类号： F01L13/0015 ,  F01L1/185 ,  F01L2001/0537 ,  F01L2001/34423 ,  F01L2001/34446 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2800/05 ,  Y10T477/65 ,  Y10T477/653

摘要： A valve characteristic changing mechanism is supplied with oil discharged from an electric oil pump in addition to oil discharged from a mechanical oil pump that is driven by an operation of an internal combustion engine. Driving of the electric oil pump is controlled such that a work rate of the electric oil pump increases as a temperature of the oil supplied to the valve characteristic changing mechanism increases, or as a viscosity of the oil is reduced.

摘要翻译： 除了从由内燃机的动作驱动的机械油泵排出的油以外，向电动油泵供给除油的阀特性变更机构。 控制电动油泵的驱动，使得电动油泵的工作速度随着供应给阀特性变化机构的油的温度升高或随着油的粘度降低而增加。

公开(公告)号：US20060037593A1

公开(公告)日：2006-02-23

申请号：US11250438

申请日：2005-10-17

申请人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

发明人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

IPC分类号： F02M25/07 ,  F01L1/34

CPC分类号： F02D13/0215 ,  F01L1/022 ,  F01L1/34 ,  F01L1/3442 ,  F01L13/0042 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2820/041 ,  F02B2275/18 ,  F02D13/0253 ,  F02D13/0261 ,  F02D35/024 ,  F02D35/026 ,  F02D37/02 ,  F02D41/006 ,  F02D41/0062 ,  F02D2041/001 ,  F02D2041/0015 ,  F02M26/01 ,  F02P5/1504 ,  F02P5/1516 ,  Y02T10/18 ,  Y02T10/46 ,  Y02T10/47

摘要： A device for controlling an internal combustion engine, comprising a variable valve mechanism for varying opening areas (valve lift) or the working angles (valve-opening periods) of at least either the intake valves or the exhaust valves, wherein a pressure in the cylinder is calculated based on the opening area or the working angle of at least either the intake valve or the exhaust valve varied by the variable valve mechanism, and the internal combustion engine is controlled based on the pressure in the cylinder. Upon calculating the pressure in the cylinder based on the opening areas or the working angles of the intake and exhaust valves, it is possible to more suitably control the internal combustion engine based not only upon the peak combustion pressure in the cylinder like when a combustion pressure sensor is used but also upon a pressure in the cylinder at a moment other than the peak combustion pressure.

公开(公告)号：US06948478B2

公开(公告)日：2005-09-27

申请号：US10450152

申请日：2001-12-12

申请人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

发明人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

IPC分类号： F02D45/00 ,  F01L1/34 ,  F01L1/344 ,  F01L13/00 ,  F02D13/02 ,  F02D35/02 ,  F02D37/02 ,  F02D41/00 ,  F02D43/00 ,  F02M25/07 ,  F02P5/15 ,  F02M7/00

CPC分类号： F02D13/0215 ,  F01L1/022 ,  F01L1/34 ,  F01L1/3442 ,  F01L13/0042 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2820/041 ,  F02B2275/18 ,  F02D13/0253 ,  F02D13/0261 ,  F02D35/024 ,  F02D35/026 ,  F02D37/02 ,  F02D41/006 ,  F02D41/0062 ,  F02D2041/001 ,  F02D2041/0015 ,  F02M26/01 ,  F02P5/1504 ,  F02P5/1516 ,  Y02T10/18 ,  Y02T10/46 ,  Y02T10/47

摘要： A device for controlling an internal combustion engine, comprising a variable valve mechanism for varying opening areas (valve lift) or the working angles (valve-opening periods) of at least either the intake valves or the exhaust valves, wherein a pressure in the cylinder is calculated based on the opening area or the working angle of at least either the intake valve or the exhaust valve varied by the variable valve mechanism, and the internal combustion engine is controlled based on the pressure in the cylinder. Upon calculating the pressure in the cylinder based on the opening areas or the working angles of the intake and exhaust valves, it is possible to more suitably control the internal combustion engine based not only upon the peak combustion pressure in the cylinder like when a combustion pressure sensor is used but also upon a pressure in the cylinder at a moment other than the peak combustion pressure.

摘要翻译： 一种用于控制内燃机的装置，包括用于改变进气门或排气门中的至少任一个的开口面积（气门升程）或工作角度（阀打开周期）的可变气门机构，其中气缸中的压力 基于由可变气门机构变化的进气门或排气门中的至少一个的开口面积或工作角度来计算，并且基于气缸中的压力来控制内燃机。 在基于进气门和排气门的开口面积或工作角度计算气缸中的压力时，不仅可以基于气缸中的峰值燃烧压力更适当地控制内燃机，如同燃烧压力 传感器，而且在除了峰值燃烧压力之外的时刻，气缸中的压力也被使用。

公开(公告)号：US06789414B2

公开(公告)日：2004-09-14

申请号：US10665146

申请日：2003-09-22

申请人： Naohide Fuwa

发明人： Naohide Fuwa

IPC分类号： G01M1500

CPC分类号： F02D41/18 ,  F02D11/105 ,  F02D2041/1431 ,  F02D2200/0402 ,  F02D2200/703

摘要： In an estimation apparatus of an air intake flow for an internal combustion engine, an air intake flow rate fed into a portion just upstream of an intake valve at a predetermined timing before starting of fuel injection is calculated based on an output of an air flow meter. A variance in the air intake flow rate caused by the change in the intake pressure at the portion just upstream of the intake vale at the predetermined timing is calculated based on an output of a pressure sensor. The calculated air intake flow rate is added to the variance to obtain an air intake flow rate fed into a cylinder at the predetermined timing. The air intake flow rate fed into the cylinder is corrected to an air intake flow rate required for estimating an actual air intake flow based on an amount of change in the air intake flow rate fed into the cylinder at the predetermined timing.

摘要翻译： 在内燃机的进气流量的估计装置中，基于空气流量计的输出，计算在开始燃料喷射之前的预定时刻，供给到进气门刚刚上游的部分的进气流量 。 基于压力传感器的输出计算由在预定定时在进气阀正上游的部分处的进气压力的变化引起的进气流量的变化。 将计算出的进气流量加到方差上，以便在预定的时刻获得进入气缸的进气流量。 馈送到气缸中的进气流量基于在预定定时馈送到气缸中的进气流量的变化量来校正到估计实际进气流量所需的进气流量。

公开(公告)号：US06612284B1

公开(公告)日：2003-09-02

申请号：US10018344

申请日：2001-12-19

申请人： Noboru Takagi ,  Hiroyuki Mizuno ,  Naohide Fuwa

发明人： Noboru Takagi ,  Hiroyuki Mizuno ,  Naohide Fuwa

IPC分类号： F02B1700

CPC分类号： F02D41/0002 ,  F02D41/3029 ,  F02D41/307 ,  F02D41/3076 ,  F02D2250/18 ,  Y02T10/128 ,  Y02T10/42

摘要： An engine is operated in a homogeneous charge combustion mode or a stratified charge combustion mode. An intensive target throttle angle is computed based on the running state of the engine, regardless of a combustion mode which is underway. The intensive target throttle angle reflects an engine torque which is demanded at the time of executing the homogeneous charge combustion mode. At the time of executing the homogeneous charge combustion mode, the degree of opening of a throttle valve is adjusted based on the intensive target throttle angle to adjust the engine torque. At the time of executing the stratified charge combustion mode, a fuel injection amount is adjusted based on the intensive target throttle angle to adjust the engine torque. In other words, even in case where either of the two combustion modes is executed, the engine torque is adjusted based on the intensive target throttle angle. It is therefore possible to easily match engine torque characteristics between these different combustion modes.

摘要翻译： 发动机以均匀充气燃烧模式或分层充气燃烧模式运行。 不考虑正在进行的燃烧模式，基于发动机的运行状态来计算强化目标油门角度。 强化目标油门角度反映了在执行均质充气燃烧模式时要求的发动机转矩。 在执行均质充气燃烧模式时，基于强化的目标节气门角度来调节节气门的打开程度以调节发动机扭矩。 在执行分层充气燃烧模式时，基于强化目标节气门角度来调整燃料喷射量，以调整发动机转矩。 换句话说，即使在执行两种燃烧模式中的任一种的情况下，也可以基于强化的目标节气门角度来调整发动机转矩。 因此，可以容易地匹配这些不同燃烧模式之间的发动机转矩特性。

公开(公告)号：US06283089B1

公开(公告)日：2001-09-04

申请号：US09525462

申请日：2000-03-15

申请人： Naohide Fuwa ,  Takayuki Demura ,  Junichi Kako

发明人： Naohide Fuwa ,  Takayuki Demura ,  Junichi Kako

IPC分类号： F02B1700

CPC分类号： F02P5/1516 ,  F02B17/005 ,  F02B2075/125 ,  F02D41/0057 ,  F02D41/0065 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/389 ,  F02D2250/12 ,  F02M26/48 ,  Y02T10/123 ,  Y02T10/46 ,  Y02T10/47

摘要： A direct-injection internal combustion engine can smoothly switch and transition between a first operation mode and a second operation mode according to an operating condition of the engine. An engine control amount in the first operation mode is calculated differently from an engine control amount in the second operation mode. However, even if the engine control amount requires correction only in the second operation mode, calculation of a correction amount is made during the first operation mode as well. During a transition from the first operation mode to the second operation mode, the correction amount calculated during the first operation mode is taken into account in calculating an engine control amount. As the correction amount is already available at the time of transition, a suitable engine control amount can be immediately obtained.

摘要翻译： 直喷式内燃机可以根据发动机的运转状况顺利地在第一运行模式和第二运转模式之间切换和转换。 与第二操作模式中的发动机控制量不同地计算第一操作模式中的发动机控制量。 然而，即使发动机控制量仅在第二操作模式下需要校正，也在第一操作模式期间进行校正量的计算。 在从第一操作模式转换到第二操作模式期间，在计算发动机控制量时考虑在第一操作模式期间计算的校正量。 由于校正量在转换时已经可用，因此可以立即获得合适的发动机控制量。