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公开(公告)号：US20120291423A1
公开(公告)日：2012-11-22
申请号：US13522462
申请日：2010-03-02
IPC分类号： F01N3/08
CPC分类号： F02D13/08 , F02B2075/125 , F02D17/02 , F02D41/0005 , F02D41/0235 , F02D41/0295 , F02D41/123 , F02D41/1439 , F02D41/1454 , F02D41/18 , F02D2041/0012 , F02D2200/0802 , Y02T10/123 , Y02T10/18
摘要： Provided is a control apparatus for an internal combustion engine that can favorably achieve compatibility between suppressing deterioration of a catalyst and suppressing progression of rich poisoning thereof when the internal combustion engine has a configuration that performs valve stopping control during a fuel-cut operation. Variable valve operating apparatuses are provided having valve stop mechanisms that can respectively change an operating state of an intake valve and an exhaust valve between a valve operating state and a closed-valve stopped state. When an integrated fuel injection amount is equal to or greater than a predetermined value β when executing a fuel-cut operation, it is determined that rich poisoning of an upstream catalyst is in a progressed state. In that case, valve stopping control of the intake and exhaust valves is prohibited to thereby supply oxygen to the upstream catalyst.
摘要翻译： 本发明提供一种内燃机的控制装置，其能够在燃料切断动作中具有进行阀停止控制的结构的情况下，有利地实现抑制催化剂的劣化和抑制其中毒的进行的相容性。 可变气门操作装置设置有具有能够在阀操作状态和闭阀停止状态之间分别改变进气门和排气阀的操作状态的阀停止机构。 当集成燃料喷射量等于或大于预定值＆lt; bgr时; 当执行燃料切断操作时，确定上游催化剂的富集中毒处于进行状态。 在这种情况下，禁止进气阀和排气阀的阀停止控制，从而向上游催化剂供给氧。
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公开(公告)号：US20120006291A1
公开(公告)日：2012-01-12
申请号：US13257316
申请日：2010-01-18
IPC分类号： F01L1/34
CPC分类号： F02D13/08 , B60L11/123 , B60L11/14 , B60L2240/36 , B60L2240/44 , B60L2240/80 , B60L2270/12 , B60W10/06 , B60W20/16 , F01L1/267 , F01L13/0005 , F01L13/0021 , F01L13/0036 , F01L2800/03 , F01L2820/031 , F02D17/04 , F02D41/0235 , F02D41/042 , F02D2041/001 , F02D2200/0802 , F02N19/005 , F02N2019/008 , Y02T10/18 , Y02T10/6217 , Y02T10/7077
摘要： There is provided a control apparatus for an internal combustion engine, which can favorably reduce a load necessary for cranking at the time of the next start, while preventing the fresh air inflow to a catalyst at the time of the stop of the internal combustion engine. A valve stop command is issued to an electrically-driven actuator so that the operational states of intake and exhaust valves becomes a valve closed/stopped state when fuel supply is stopped in response to an establishment of a predetermined stop condition of the internal combustion engine. Then, to return the operational states of the intake and exhaust valves to a valve operating state after the completion of the stopping operation of the internal combustion engine, a valve return command is issued to the actuator, and a crankshaft is rotationally driven by a predetermined angle required to return the operational states of the intake and exhaust valves to the valve operating state.
摘要翻译： 提供了一种用于内燃机的控制装置，其可以有利地降低下一次启动时起动所需的负载，同时防止在内燃机停止时新鲜空气流入催化剂。 向电动致动器发出阀停止命令，使得当燃料供给停止时，进气门和排气门的运行状态响应于内燃机的预定停止条件的建立而变为阀关闭/停止状态。 然后，在内燃机停止运转结束后，将进气门和排气门的运转状态返回至阀运行状态，向执行机构发出阀返回指令，并将曲轴旋转驱动预定 将进气门和排气门的操作状态返回到阀操作状态所需的角度。
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公开(公告)号：US20150120170A1
公开(公告)日：2015-04-30
申请号：US14390234
申请日：2012-04-10
CPC分类号： F02D41/30 , F02D41/1401 , F02D41/1441 , F02D41/1477 , F02D2041/1422
摘要： Invention suppresses deterioration of emission if there is air-fuel ratio imbalance among cylinders. Apparatus (100) controlling an engine including first and second air-fuel ratio sensors respectively disposed on upstream and downstream of catalyst, has: first determining device determining first F/B controlled variable according to deviation between output value and target value of first air-fuel ratio sensor; second determining device determining second F/B controlled variable according to deviation between output value and target value of second air-fuel ratio sensor; controlling device controlling fuel injection amount based on first and second F/B controlled variables; detecting device detecting air-fuel ratio imbalance among cylinders; and correcting device correcting second F/B controlled variable in direction in which there is hardly change of fuel injection amount to lean air-fuel ratio side, according to output deviation between first and second air-fuel ratio sensors, if air-fuel ratio imbalance is detected.
摘要翻译： 如果气缸之间存在空燃比不均衡，则抑制发射劣化。 控制发动机的装置（100）包括分别设置在催化剂的上游和下游的第一和第二空燃比传感器，具有：第一确定装置根据第一空气 - 燃料比传感器的输出值和目标值之间的偏差确定第一F / B控制变量， 燃油比传感器; 第二确定装置根据第二空燃比传感器的输出值和目标值之间的偏差确定第二F / B控制变量; 基于第一和第二F / B控制变量控制燃料喷射量的控制装置; 检测装置检测气缸之间的空燃比不平衡; 以及根据第一和第二空燃比传感器之间的输出偏差校正第二F / B控制变量，其中燃料喷射量几乎不变化到稀空燃比侧的方向上，如果空燃比不平衡 被检测到。
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24.发明授权Air-fuel ratio control device and air-fuel ratio control method for internal combustion engine 有权用于内燃机的空燃比控制装置和空燃比控制方法公开(公告)号：US08406980B2
公开(公告)日：2013-03-26
申请号：US12595767
申请日：2008-04-11
申请人： Norihisa Nakagawa , Takahiko Fujiwara , Taiga Hagimoto , Junichi Kako , Naoto Kato , Shuntaro Okazaki
发明人： Norihisa Nakagawa , Takahiko Fujiwara , Taiga Hagimoto , Junichi Kako , Naoto Kato , Shuntaro Okazaki
CPC分类号： F02D41/1455 , F02D41/1441 , F02D41/1456 , F02D41/2461
摘要： An air-fuel ratio control device includes an air-fuel ratio sensor provided upstream from a three-way catalyst, and an oxygen sensor provided downstream from the three-way catalyst. The air-fuel ratio control device controls the fuel supply amount based on the output from the air-fuel ratio sensor, and compensates for errors in the air-fuel ratio sensor by correcting the fuel supply amount based on the output from the oxygen sensor. The fuel supply correction amount is calculated based on an integral term that integrates the deviation between the output from the downstream air-fuel ratio sensor and the target air-fuel ratio. When a fuel supply adjustment control is executed, the value of the integral term in the sub-feedback control is not updated for a predetermined period after the fuel supply adjustment control ends. The actual air-fuel ratio is thus brought to the target air-fuel ratio in an appropriate manner.
摘要翻译： 空燃比控制装置包括设置在三元催化剂上游的空燃比传感器和设置在三元催化剂下游的氧传感器。 空燃比控制装置基于空燃比传感器的输出来控制燃料供给量，并且通过基于氧传感器的输出校正燃料供给量来补偿空燃比传感器的误差。 基于将来自下游空燃比传感器的输出与目标空燃比的偏差进行积分的积分项来计算燃料供给修正量。 当执行燃料供给调节控制时，在燃料供给调节控制结束之后的预定时间段内，子反馈控制中的积分项的值不被更新。 因此，实际的空燃比以适当的方式达到目标空燃比。
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公开(公告)号：US08230846B2
公开(公告)日：2012-07-31
申请号：US12448346
申请日：2008-04-08
申请人： Takahiko Fujiwara , Hiroaki Mizoguchi , Norihisa Nakagawa , Taiga Hagimoto , Naoto Kato , Shuntaro Okazaki
发明人： Takahiko Fujiwara , Hiroaki Mizoguchi , Norihisa Nakagawa , Taiga Hagimoto , Naoto Kato , Shuntaro Okazaki
CPC分类号： F02D41/148 , F02D41/0295 , F02D41/126 , F02D41/1441
摘要： The present invention relates to an air-fuel ratio control device for an internal combustion engine, and makes it possible to maintain high purification performance by suppressing a decrease in the oxygen occlusion capability of a catalyst. When an O2 sensor output oxs is greater than a reference value oxsref, which corresponds to a stoichiometric air-fuel ratio, and smaller than an upper threshold value oxsrefR, a sub-FB reflection coefficient is fixed at a predetermined value vdox2 for providing a lean air-fuel ratio. When, on the other hand, the O2 sensor output oxs is smaller than the reference value oxsref and greater than a lower threshold value oxsrefL, the sub-FB reflection coefficient is fixed at a predetermined value vdox2 for providing a rich air-fuel ratio. The sub-FB reflection coefficient reflects the O2 sensor output oxs in the calculation of a fuel injection amount and increases or decreases to have a consequence on the air-fuel ratio of an exhaust gas.
摘要翻译： 本发明涉及一种用于内燃机的空燃比控制装置，并且通过抑制催化剂的吸氧能力的降低，可以保持高的净化性能。 当O2传感器输出ox大于对应于化学计量空燃比且小于上限阈值oxsrefR的参考值oxsref时，子FB反射系数固定在预定值vdox2以提供稀薄 空燃比。 另一方面，当O2传感器输出ox小于参考值oxsref并且大于下阈值oxsrefL时，子FB反射系数固定在预定值vdox2以提供浓空燃比。 在计算燃料喷射量时，子FB反射系数反映了O2传感器输出牛，并且增加或减少以对排气的空燃比产生影响。
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26.发明授权Apparatus for regulating vehicle transmission line pressure based on throttle opening or engine intake air quantity 失效基于节气门开度或发动机进气量来调节车辆传动管线压力的装置
公开(公告)号：US5323668A
公开(公告)日：1994-06-28
申请号：US972516
申请日：1992-11-06
CPC分类号： F16H61/0021 , B60W2510/0628 , F16H59/24 , F16H59/40 , F16H59/42 , F16H59/74 , Y10S477/905 , Y10T477/69395 , Y10T477/693973
摘要： A hydraulic control apparatus for an automatic transmission of a motor vehicle, which has a plurality of gear positions that are selectively established by selective operation of hydraulically operated frictional coupling devices. The apparatus includes a pressure regulating device which receives a hydraulic pressure generated by a pressure source and generates a line pressure to be applied to the coupling devices. The pressure regulating device regulates the line pressure on the basis of the detected throttle opening angle of the engine when the vehicle is running in a transient state, and on the basis of the detected intake air quantity of the engine when the vehicle is running in a steady state.
摘要翻译： 一种用于机动车辆的自动变速器的液压控制装置，其具有通过液压操作的摩擦联接装置的选择性操作选择性地建立的多个档位。 该装置包括压力调节装置，其接收由压力源产生的液压并产生要施加到联接装置的管路压力。 压力调节装置基于当车辆在过渡状态下行驶时检测到的发动机的节气门开度角，并且基于当车辆行驶时检测到的发动机的进气量，调节管路压力 稳定状态。
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27.发明授权
公开(公告)号：US4856473A
公开(公告)日：1989-08-15
申请号：US232211
申请日：1988-08-15
申请人： Taiyo Kawai , Norihisa Nakagawa , Shin-ichi Sano
发明人： Taiyo Kawai , Norihisa Nakagawa , Shin-ichi Sano
CPC分类号： F02B31/085 , F02B17/00 , F02B31/082 , F02F1/4214 , F02M26/20 , F02M26/44 , F02B1/04 , F02B2031/006 , F02F2001/245 , Y02T10/146
摘要： An internal combustion engine having two intake valves arranged in respective intake passages for each cylinder, wherein, a first intake passage is arranged to cause a swirl of intake air in the combustion chamber and a fuel injector is arranged in this intake passage, and a flow control valve is arranged in the second intake passage to close same when the engine load is low. An EGR passage is provided with an outlet in the second intake passage at a position between the second intake valve and the flow control valve, and the EGR gas is thus delivered to a volume enclosed in the second intake passage between the second intake valve and the flow control valve and remains there while these valves are closed. Then, when the second intake valve is open, the EGR gas slowly flows into the combustion chamber and floats toward and is collected at the upper region in the combustion chamber, while fuel flows smoothly into the combustion chamber, together with intake air, through the first intake passage.
摘要翻译： 一种内燃机，其具有配置在每个气缸的相应进气通道中的两个进气门，其中，第一进气通道布置成使燃烧室中的进气旋转并且燃料喷射器布置在该进气通道中， 当发动机负荷低时，控制阀设置在第二进气通道中以使其相同。 EGR通道在第二进气通道和第二进气门与流量控制阀之间的位置处设置有第二进气通道中的出口，并且EGR气体被输送到第二进气通道中封闭的第二进气门和第二进气门 流量控制阀，并保持在这些阀门关闭。 然后，当第二进气门打开时，EGR气体缓慢地流入燃烧室，并且在燃烧室的上部区域浮动并被收集，同时燃料与进气一起平稳地流入燃烧室，通过 第一次进气通道。
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公开(公告)号：US08381707B2
公开(公告)日：2013-02-26
申请号：US12682919
申请日：2009-01-27
CPC分类号： F02D41/0295 , F01N11/007 , F02D41/10 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/2454 , F02D2041/1409 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： Internal combustion engine air-fuel ratio control apparatus and method in which the target air-fuel ratio of exhaust gas flowing into an exhaust-gas purification catalyst unit is controlled through at least proportional-integral control such that the correction amount per unit time of the oxygen amount in said catalyst unit is maintained constant. When the intake air amount is smaller than a predetermined amount and the air-fuel ratio detected by an oxygen sensor provided downstream of the catalyst unit is rich, the target air-fuel ratio is controlled to suppress an increase in the air-fuel ratio in the exhaust-gas purification catalyst unit. Accordingly, even if rapid acceleration operation is performed in a state where the intake air amount is extremely small and the air-fuel ratio detected by the oxygen sensor is rich, NOx in exhaust gas can be sufficiently removed through reduction reactions at the exhaust-gas purification catalyst unit.
摘要翻译： 内燃机空燃比控制装置和方法，其中通过至少比例积分控制来控制流入排气净化催化剂单元的废气的目标空燃比，使得每单位时间的修正量 所述催化剂单元中的氧气量保持恒定。 当进气量小于预定量并且由设置在催化剂单元下游的氧传感器检测到的空燃比变浓时，控制目标空燃比以抑制空燃比的增加 排气净化催化剂单元。 因此，即使在进气量极小并且由氧传感器检测到的空燃比浓的状态下进行快速加速操作，也可以通过废气中的还原反应充分除去废气中的NOx 净化催化剂单元。
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29.发明申请AIR-FUEL RATIO CONTROL APPARATUS AND AIR-FUEL RATIO CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开用于内燃机的空燃比比控制装置和空燃比控制方法公开(公告)号：US20100218485A1
公开(公告)日：2010-09-02
申请号：US12439902
申请日：2007-09-05
申请人： Takahiko Fujiwara , Norihisa Nakagawa , Naoto Kato , Shuntaro Okazaki , Koji Ide
发明人： Takahiko Fujiwara , Norihisa Nakagawa , Naoto Kato , Shuntaro Okazaki , Koji Ide
CPC分类号： F02D41/027 , F01N2570/16 , F02D41/0295 , F02D41/1454 , F02D2200/0814
摘要： A fuel injection amount is controlled so that the air-fuel ratio of exhaust gas flowing into a catalyst (6) oscillates around a stoichiometric air-fuel ratio. When it is estimated that the level of oxygen storage capacity of the catalyst (6) is lower than a predetermined reference capacity, the amplitude of the air-fuel ratio of the exhaust gas which oscillates around the stoichiometric air-fuel ratio is reduced by controlling the fuel injection amount. The level of the oxygen storage capacity of the catalyst (6) is estimated based on the amplitude of the output signal from an oxygen sensor (14) disposed downstream of the catalyst (6).
摘要翻译： 控制燃料喷射量，使得流入催化剂（6）的废气的空燃比围绕化学计量空燃比振荡。 当估计催化剂（6）的储氧能力水平低于预定的参考容量时，围绕理论空燃比振荡的废气的空燃比的幅度通过控制 燃料喷射量。 基于来自设置在催化剂（6）下游的氧传感器（14）的输出信号的振幅来估计催化剂（6）的储氧能力水平。
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公开(公告)号：US07474956B2
公开(公告)日：2009-01-06
申请号：US11885266
申请日：2006-09-13
申请人： Norihisa Nakagawa , Takahiko Fujiwara , Taiga Hagimoto , Junichi Kako , Naoto Kato , Shuntaro Okazaki
发明人： Norihisa Nakagawa , Takahiko Fujiwara , Taiga Hagimoto , Junichi Kako , Naoto Kato , Shuntaro Okazaki
CPC分类号： F02D41/1441 , F01N2560/025 , F01N2560/14 , F02D41/123 , F02D41/1454 , F02D41/1456 , F02D2041/1409 , F02D2041/1422 , F02D2200/0814
摘要： An air-fuel ratio control system maintaining constant an oxygen storage amount or oxygen release amount per unit time with respect to an exhaust purification catalyst having an oxygen storage capacity even if the intake air amount changes is provided.An air-fuel ratio control system of an internal combustion engine having an intake air amount detecting means, a linear air-fuel ratio sensor arranged at an upstream side of an exhaust purification catalyst, an O2 sensor arranged at a downstream side of said exhaust purification catalyst, a target air-fuel ratio controlling means for performing feedback control of a target air-fuel ratio of exhaust flowing into the exhaust purification catalyst based on output information from the intake air amount detecting means and the O2 sensor, and a fuel injection amount controlling means for performing feedback control of the fuel injection amount based on output information of the linear air-fuel ratio sensor so as to achieve the target air-fuel ratio, characterized in that the target air-fuel ratio controlling means performs feedback control of the target air-fuel ratio so that even when the intake air amount changes, a correction amount per unit time of an oxygen storage amount of the exhaust purification catalyst is made constant.
摘要翻译： 即使提供进气量变化，也能够提供相对于具有储氧能力的排气净化催化剂，每单位时间保持恒定氧气储存量或氧释放量的空燃比控制系统。 一种内燃机的空燃比控制系统，具有进气量检测装置，布置在排气净化催化剂的上游侧的线性空燃比传感器，配置在排气净化装置的下游侧的O2传感器 催化剂，目标空燃比控制装置，用于根据来自进气量检测装置和O2传感器的输出信息，对流入排气净化催化剂的排气的目标空燃比进行反馈控制;燃料喷射量 控制装置，用于基于线性空燃比传感器的输出信息进行燃料喷射量的反馈控制，以实现目标空燃比，其特征在于，所述目标空燃比控制装置执行所述目标空燃比控制装置的反馈控制， 目标空燃比，使得即使当进气量变化时，排气的氧气存储量的每单位时间的校正量 净化催化剂保持恒定。
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