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    • 2. 发明申请
    • Control apparatus and method and engine control unit for internal combustion engine
    • 内燃机控制装置及方法及发动机控制装置
    • US20070250247A1
    • 2007-10-25
    • US11717043
    • 2007-03-13
    • Yuji YasuiIkue Kawasumi
    • Yuji YasuiIkue Kawasumi
    • G06F17/00F02B17/00F02B5/00
    • F02D41/3064F02D41/1401F02D41/263
    • A control apparatus and method, and an engine control unit for an internal combustion engine are provided for restraining a torque step and sudden fluctuations in rotation when an air/fuel mixture combustion mode is switched among a plurality of combustion modes, and for improving the fuel economy. A control apparatus of an internal combustion engine operated with a combustion mode switched between a stratified combustion mode and a uniform combustion mode comprises an ECU. The ECU calculates an ignition manipulated variable to cancel out a change in the engine rotational speed associated with the switching of the combustion mode when a first-time injection ratio changes during idle rotational speed control, and calculates an intake manipulated variable to cancel a change in the engine rotational speed caused by the ignition manipulated variable when the first-time injection ratio changes.
    • 提供一种控制装置和方法以及用于内燃机的发动机控制单元,用于在多个燃烧模式之间切换空气/燃料混合燃烧模式时抑制转矩步骤和突然的旋转波动,并且用于改善燃料 经济。 在分层燃烧模式和均匀燃烧模式之间切换的燃烧模式下操作的内燃机的控制装置包括ECU。 ECU在怠速转速控制中首次喷射比变化时,计算点火操作变量,以消除与燃烧模式的切换相关联的发动机转速的变化,并且计算进气调节变量以消除变化 当第一次喷射比率变化时由点火操纵变量引起的发动机转速。
    • 3. 发明授权
    • Electronic control unit for controlling fuel injection in expansion and/or exhaust strokes
    • 用于控制膨胀和/或排气冲程中的燃料喷射的电子控制单元
    • US08229650B2
    • 2012-07-24
    • US12528480
    • 2008-04-25
    • Yuji YasuiIkue Kawasumi
    • Yuji YasuiIkue Kawasumi
    • F02D41/04F02D41/34
    • F02D41/025F02D41/008F02D41/405F02D2200/0804Y02T10/26Y02T10/44
    • An ECU controls to inject a small amount of fuel in an expansion/exhaust stroke under constraint of the minimum fuel injection capability of an injector at the time of warming-up of a catalyst. The ECU controls injection of fuel in expansion/exhaust strokes (expansion/exhaust stroke injection) at the time of warming-up of a catalyst. Fuel injection control is performed so that when temperature of the catalyst becomes higher than a predetermined temperature, fuel injection in the expansion/exhaust strokes is performed for a period of a predetermined ratio in a selected cycle period. The expansion/exhaust stroke injection is not performed in the other period. By effectively utilizing oxygen absorbed on the catalyst, while suppressing slip HC, the activation time of the catalyst can be shortened.
    • ECU控制在催化剂预热时喷射器的最小燃料喷射能力的限制下在膨胀/排气冲程中喷射少量燃料。 ECU在催化剂预热时控制膨胀/排气冲程中的燃料喷射(膨胀/排气冲程喷射)。 执行燃料喷射控制,使得当催化剂的温度变得高于预定温度时,在所选择的循环周期内,在预定比例的时段内执行膨胀/排气冲程中的燃料喷射。 在其他时间段内不进行膨胀/排气行程喷射。 通过有效地利用吸附在催化剂上的氧气,同时抑制滑移HC,可以缩短催化剂的活化时间。
    • 5. 发明申请
    • Control apparatus
    • 控制装置
    • US20070142937A1
    • 2007-06-21
    • US11635589
    • 2006-12-08
    • Yuji YasuiIkue Kawasumi
    • Yuji YasuiIkue Kawasumi
    • G05B13/02
    • F02D41/1402F02D35/023F02D41/0002F02D41/3035F02D2041/001F02D2041/1432F02D2041/1433F02D2250/18
    • A control apparatus which is capable of ensuring both high-level stability and accuracy of control and reducing manufacturing costs thereof and computation load thereon, even when controlling a controlled object having extremal characteristics or a controlled object of a multi-input multi-output system. The control apparatus is comprised of an onboard model analyzer and a cooperative controller. The onboard model analyzer, based on a controlled object model defining the relationships between an intake opening angle and an exhaust reopening angle, and an indicated mean effective pressure, calculates first and second response indices and indicative of a correlation therebetween, respectively. The cooperative controller calculates the intake opening angle and the exhaust reopening angle with predetermined algorithms such that the indicated mean effective pressure is caused to converge to its target value, and determines the increasing/decreasing rate and the increasing/decreasing direction of the aforementioned angles according to the first and second response indices.
    • 即使在控制具有极端特性的被控制对象或多输入多输出系统的受控对象的情况下,也能够确保高水平的稳定性和控制精度以及降低其制造成本和计算负荷的控制装置。 该控制装置包括车载模型分析器和协作控制器。 车载模型分析仪基于限定进气开启角度和排气重新打开角度之间的关系的受控对象模型和指示的平均有效压力,分别计算第一和第二响应指数并指示它们之间的相关性。 合作控制器使用预定的算法计算进气开度角和排气重开度,使得所指示的平均有效压力收敛到其目标值,并根据上述角度确定上升/下降速率和上升/下降方向 到第一和第二个响应指数。
    • 6. 发明申请
    • EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 用于内燃机的排气净化装置
    • US20110041480A1
    • 2011-02-24
    • US12936706
    • 2008-04-18
    • Yuji YasuiIkue KawasumiMichael Fischer
    • Yuji YasuiIkue KawasumiMichael Fischer
    • F01N9/00F01N3/10
    • F01N3/208F01N13/0093F01N13/0097F01N2560/021F01N2570/18F01N2610/02F01N2610/146F01N2900/0408F01N2900/0411F01N2900/1402F01N2900/1622Y02T10/24
    • An exhaust purification apparatus for internal combustion engine having a selective reduction catalyst that while maintaining a high NOx reduction ratio, inhibits any ammonia discharge downstream of the selective reduction catalyst. In the exhaust purification apparatus (2), a urea selective reduction catalyst (23) comprises a first selective reduction catalyst (231) and, provided downstream of the first selective reduction catalyst (231) in an exhaust passageway (11), a second selective reduction catalyst (232). Further, the exhaust purification apparatus (2) includes a urea injection unit (25) for feeding of a reducing agent upstream of the urea selective reduction catalyst (23) in the exhaust passageway (11) and an ammonia sensor (26) for detection of the ammonia concentration at a site between the first selective reduction catalyst (231) and the second selective reduction catalyst (232) in the exhaust passageway (11). The rate of urea injection, GUREA, by the urea injection unit (25) is determined so that the value of ammonia concentration, NH3CONS, detected by the ammonia sensor (26) is greater than “0.”
    • 具有选择还原催化剂的内燃机的排气净化装置,其在保持高NOx还原率的同时,抑制选择还原催化剂下游的氨排放。 在排气净化装置(2)中,尿素选择还原催化剂(23)包括第一选择还原催化剂(231),并且设置在排气通路(11)中的第一选择还原催化剂(231)的下游,第二选择还原催化剂 还原催化剂(232)。 此外,排气净化装置(2)具备:尿素喷射单元(25),用于在排气通路(11)中的尿素选择还原催化剂(23)的上游侧供给还原剂,以及氨传感器(26) 在排气通道(11)中的第一选择还原催化剂(231)和第二选择还原催化剂(232)之间的位置处的氨浓度。 确定尿素注入单元(25)的尿素注入速率GUREA,使得氨传感器(26)检测到的氨浓度NH3CONS值大于“0”。
    • 7. 发明申请
    • ELECTRONIC CONTROL UNIT FOR CONTROLLING FUEL INJECTION IN EXPANSION AND/OR EXHAUST STROKES
    • 用于控制膨胀和/或排气管道燃油喷射的电子控制单元
    • US20100100304A1
    • 2010-04-22
    • US12528480
    • 2008-04-25
    • Yuji YasuiIkue Kawasumi
    • Yuji YasuiIkue Kawasumi
    • F02D41/04F02D41/34
    • F02D41/025F02D41/008F02D41/405F02D2200/0804Y02T10/26Y02T10/44
    • An ECU controls to inject a small amount of fuel in an expansion/exhaust stroke under constraint of the minimum fuel injection capability of an injector at the time of warming-up of a catalyst. The ECU controls injection of fuel in expansion/exhaust strokes (expansion/exhaust stroke injection) at the time of warming-up of a catalyst. Fuel injection control is performed so that when temperature of the catalyst becomes higher than a predetermined temperature, fuel injection in the expansion/exhaust strokes is performed for a period of a predetermined ratio in a selected cycle period. The expansion/exhaust stroke injection is not performed in the other period. By effectively utilizing oxygen absorbed on the catalyst, while suppressing slip HC, the activation time of the catalyst can be shortened.
    • ECU控制在催化剂预热时喷射器的最小燃料喷射能力的限制下在膨胀/排气冲程中喷射少量燃料。 ECU在催化剂预热时控制膨胀/排气冲程中的燃料喷射(膨胀/排气冲程喷射)。 执行燃料喷射控制,使得当催化剂的温度变得高于预定温度时,在所选择的循环周期内以预定比例的时间段执行膨胀/排气冲程中的燃料喷射。 在其他时间段内不进行膨胀/排气行程喷射。 通过有效地利用吸附在催化剂上的氧气,同时抑制滑移HC,可以缩短催化剂的活化时间。
    • 8. 发明申请
    • Control apparatus and method and control unit
    • 控制装置及方法及控制单元
    • US20090164090A1
    • 2009-06-25
    • US12314896
    • 2008-12-18
    • Yuji YasuiIkue Kawasumi
    • Yuji YasuiIkue Kawasumi
    • F02D45/00
    • G05B21/00F02D41/1403F02D41/1441F02D41/1445F02D41/2458F02D2041/1423G05B13/04
    • A control apparatus which can improve the accuracy of control of a controlled variable by a control input exhibiting a periodic fluctuating behavior. The control apparatus calculates an air-fuel ratio correction value DKCMD such that the output from an oxygen concentration sensor converges to a target output, and calculate a modulated value DKCMD_DSM by modulating DKCMD with an algorithm to which is applied a Δ Σ modulation algorithm. Further, the control apparatus calculates a reference air-fuel ratio KCMDBS according to an exhaust gas volume, calculates a model modification coefficient KTRQFF using a modification coefficient calculated such that DKCMD become equal to 0, calculates an adaptive reference air-fuel ratio KCMDADP by the equation of KCMDADP=KCMDBS×KTRQFF, and calculates a target air-fuel ratio KCMD by the equation of KCMD=KCMADP+DKCMD_DSM.
    • 一种控制装置,其可以通过呈现周期性波动行为的控制输入来提高控制变量的控制精度。 控制装置计算出空气燃料比校正值DKCMD,使得氧浓度传感器的输出收敛到目标输出,并通过用应用了ΔΣ调制算法的算法调制DKCMD来计算调制值DKCMD_DSM。 此外,控制装置根据排气量计算参考空燃比KCMDBS,使用以DKCMD变为等于0计算出的修正系数来计算模型修正系数KTRQFF,通过下式计算自适应基准空燃比KCMDADP KCMDADP = KCMDBSxKTRQFF的公式,并通过KCMD = KCMADP + DKCMD_DSM的公式计算目标空燃比KCMD。
    • 10. 发明授权
    • Exhaust purification apparatus for internal combustion engine
    • 内燃机排气净化装置
    • US08555623B2
    • 2013-10-15
    • US12936706
    • 2008-04-18
    • Yuji YasuiIkue KawasumiMichael Fischer
    • Yuji YasuiIkue KawasumiMichael Fischer
    • F01N3/10
    • F01N3/208F01N13/0093F01N13/0097F01N2560/021F01N2570/18F01N2610/02F01N2610/146F01N2900/0408F01N2900/0411F01N2900/1402F01N2900/1622Y02T10/24
    • An exhaust purification apparatus for internal combustion engine having a selective reduction catalyst that while maintaining a high NOx reduction ratio, inhibits any ammonia discharge downstream of the selective reduction catalyst. In the exhaust purification apparatus (2), a urea selective reduction catalyst (23) comprises a first selective reduction catalyst (231) and, provided downstream of the first selective reduction catalyst (231) in an exhaust passageway (11), a second selective reduction catalyst (232). Further, the exhaust purification apparatus (2) includes a urea injection unit (25) for feeding of a reducing agent upstream of the urea selective reduction catalyst (23) in the exhaust passageway (11) and an ammonia sensor (26) for detection of the ammonia concentration at a site between the first selective reduction catalyst (231) and the second selective reduction catalyst (232) in the exhaust passageway (11). The rate of urea injection, GUREA, by the urea injection unit (25) is determined so that the value of ammonia concentration, NH3CONS, detected by the ammonia sensor (26) is greater than “0.”
    • 具有选择还原催化剂的内燃机的排气净化装置,其在保持高NOx还原率的同时,抑制选择还原催化剂下游的氨排放。 在排气净化装置(2)中,尿素选择还原催化剂(23)包括第一选择还原催化剂(231),并且设置在排气通路(11)中的第一选择还原催化剂(231)的下游,第二选择还原催化剂 还原催化剂(232)。 此外,排气净化装置(2)具备:尿素喷射单元(25),用于在排气通路(11)中的尿素选择还原催化剂(23)的上游侧供给还原剂,以及氨传感器(26) 在排气通道(11)中的第一选择还原催化剂(231)和第二选择还原催化剂(232)之间的位置处的氨浓度。 确定尿素注入单元(25)的尿素注入速率GUREA,使得氨传感器(26)检测到的氨浓度NH3CONS值大于“0”。