Control apparatus, control method, and engine control unit
    241.
    发明授权
    Control apparatus, control method, and engine control unit 有权
    控制装置,控制方法和发动机控制装置

    公开(公告)号:US08185218B2

    公开(公告)日:2012-05-22

    申请号:US11802002

    申请日:2007-05-18

    Applicant: Yuji Yasui

    Inventor: Yuji Yasui

    Abstract: A control apparatus which is capable of ensuring both high-level stability and accuracy of control, even when controlling a controlled object having extremal characteristics or a controlled object a controlled object model of which cannot be represented. The control apparatus 1 includes a cooperative controller 30, an onboard model analyzer 40, and a model corrector 60. The model corrector 60 calculates the model correction parameter matrix θ, so as to correct the controlled object model defining the relationship between the intake opening angle θlin and the exhaust reopening angle θrbl and the indicated mean effective pressure Pmi. The onboard model analyzer 40 calculates first and second response indices RI1 and RI2 representative of correlations between θlin, θrbl, and Pmi, based on the controlled object model corrected using θ. The cooperative controller 30 calculates the θlin and θrbl such that Pmi is caused to converge to a target value Pmi_cmd, and determines an increasing/decreasing rate and increasing/decreasing direction of θlin and θrbl according to RI1 and RI2.

    Abstract translation: 即使控制具有极端特性的受控对象或受控对象的控制对象模型不能被表示,也能够确保高水平的稳定性和控制精度的控制装置。 控制装置1包括协同控制器30,车载模型分析器40和模型校正器60.模型校正器60计算模型校正参数矩阵,以便校正限定进气开度之间的关系的受控对象模型 角度和角度; lin和排气重新开放角度; rbl和指示的平均有效压力Pmi。 板载模型分析器40基于使用&thetas校正的受控对象模型来计算表示“the”之间的相关性的第一和第二响应指数RI1和RI2; 协调控制器30计算出所述的线和弦; rbl,使得Pmi被收敛到目标值Pmi_cmd,并且根据RI1和RI确定该线性的增加/减小速率和增加/减小的方向; RI2。

    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    242.
    发明申请
    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气净化装置

    公开(公告)号:US20110041480A1

    公开(公告)日:2011-02-24

    申请号:US12936706

    申请日:2008-04-18

    Abstract: 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.”

    Abstract translation: 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”。

    CONTROL APPARATUS FOR FUEL REFORMER
    243.
    发明申请
    CONTROL APPARATUS FOR FUEL REFORMER 审中-公开
    燃料改造器控制装置

    公开(公告)号:US20100324749A1

    公开(公告)日:2010-12-23

    申请号:US12867048

    申请日:2008-11-13

    Abstract: Disclosed is a control apparatus for a fuel reformer, which enables control with consideration of the nonlinearity of the thermal model of a reforming catalyst. An ECU (3) comprises a catalyst temperature sensor (21) for detecting the temperature of a reforming catalyst (11), a catalyst temperature estimation section (32) for estimating the catalyst temperature on the basis of a correlation model relating the catalyst temperature to the catalyst reaction thermal coefficient out of plural parameters by which the reforming reaction of the reforming catalyst (11) is characterized, a controller (30) for controlling the temperature of the reforming catalyst (11) according to the estimated temperature TCAT HAT of the catalyst temperature estimation section (32), and a model correction section (34) for defining plural correction weighting functions W0 to W4 with the catalyst temperature as the domain of definition, calculating plural local correction coefficients KCL0 to KCL4 by which the plural correction weighting functions are to be multiplied, respectively, from the detected temperature TCAT SNS of the catalyst temperature sensor (21) and the estimated temperature TCAT HAT of the catalyst temperature estimation section (32), and correcting the correlation model according to the plural correction weighting functions and local correction coefficients.

    Abstract translation: 公开了一种用于燃料重整器的控制装置,其能够考虑到重整催化剂的热模型的非线性来进行控制。 ECU(3)包括用于检测重整催化剂(11)的温度的催化剂温度传感器(21),催化剂温度推定部(32),用于基于将催化剂温度与 通过重整催化剂(11)的重整反应的多个参数中的催化剂反应热系数的特征在于根据催化剂的估计温度TCAT HAT控制重整催化剂(11)的温度的控制器(30) 温度推定部(32)和模型校正部(34),用于以催化剂温度为界定义多个校正加权函数W0〜W4,计算多个校正加权函数为多个校正系数KCL0〜KCL4 分别从催化剂温度传感器(21)的检测温度TCAT SNS和最小值乘以 催化剂温度估计部(32)的温度TCAT HAT,根据多个校正加权函数和局部校正系数校正相关模型。

    Plant control system
    245.
    发明授权
    Plant control system 有权
    工厂控制系统

    公开(公告)号:US07725239B2

    公开(公告)日:2010-05-25

    申请号:US11664696

    申请日:2005-09-22

    Applicant: Yuji Yasui

    Inventor: Yuji Yasui

    Abstract: In a system calculating control input Ucain based on the linear controller that calculates a provisional input Usl to converge an output of the plant to a desired value in accordance with response-specifying control algorithm based on the linear element and on the nonlinear compensator, the nonlinear characteristic adapter is provided for correcting the nonlinear compensator based on an error e_nl between an output estimated value Cain_est of the plant calculated by the controlled object model solely comprising the linear element and the output Cain of the plant. With this, even when the nonlinear characteristics of the plant change due to manufacturing variance or aging degradation, it becomes possible to accurately compensate the nonlinear characteristics by the nonlinear compensator.

    Abstract translation: 在基于线性控制器的计算控制输入Ucain的系统中,该线性控制器根据基于线性元件和非线性补偿器的响应指定控制算法计算临时输入Us1以将工厂的输出收敛到期望值,非线性 提供特征适配器,用于基于由仅包括线性元件的受控对象模型计算的植物的输出估计值Cain_est与植物的输出Cain之间的误差e_nl来校正非线性补偿器。 因此,即使由于制造方式或老化劣化而导致的工厂的非线性特性变化,也可以通过非线性补偿器来精确地补偿非线性特性。

    ELECTRONIC CONTROL UNIT FOR CONTROLLING FUEL INJECTION IN EXPANSION AND/OR EXHAUST STROKES
    246.
    发明申请
    ELECTRONIC CONTROL UNIT FOR CONTROLLING FUEL INJECTION IN EXPANSION AND/OR EXHAUST STROKES 有权
    用于控制膨胀和/或排气管道燃油喷射的电子控制单元

    公开(公告)号:US20100100304A1

    公开(公告)日:2010-04-22

    申请号:US12528480

    申请日:2008-04-25

    Abstract: 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.

    Abstract translation: 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。

    Control system for internal combustion engine
    247.
    发明授权
    Control system for internal combustion engine 失效
    内燃机控制系统

    公开(公告)号:US07661407B2

    公开(公告)日:2010-02-16

    申请号:US12251069

    申请日:2008-10-14

    Abstract: A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.

    Abstract translation: 即使存在计算出的进气量的可靠性降低的情况下,能够提高燃料控制和点火正时控制的精度的内燃机的控制系统,能够降低制造成本。 控制系统的ECU根据气门升程,凸轮相位和压缩比来计算第一估计进气量,根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速,气门升程,凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin1的范围内时,ECU根据第一估计进气量判定燃料喷射量, 并且根据Gin2 <= Gin_vt时的第二估计进气量。

    Apparatus and method for calculating work load engine
    248.
    发明授权
    Apparatus and method for calculating work load engine 有权
    计算工作负荷发动机的装置和方法

    公开(公告)号:US07647155B2

    公开(公告)日:2010-01-12

    申请号:US11663811

    申请日:2005-09-28

    Abstract: A device and method for calculating the work load of an engine more efficiently and accurately. The device for calculating the work load of an engine comprises a means for determining a desired frequency component to calculate the work load of the engine obtained through frequency decomposition of the volume variation rate of the engine. The device further comprises a first calculating means for calculating a first correlation coefficient between the volume variation rate and a reference signal composed of a frequency corresponding to the determined component, and a second calculating means for calculating a second correlation coefficient between the cylinder inner pressure of the engine and a reference signal composed of a frequency corresponding to the determined component. The work load of the engine is calculated using the first and second correlation coefficients.

    Abstract translation: 一种用于更有效和准确地计算发动机的工作负荷的装置和方法。 用于计算发动机的工作负荷的装置包括用于确定期望频率分量以计算通过对发动机的体积变化率进行频率分解获得的发动机的工作负荷的装置。 该装置还包括:第一计算装置,用于计算体积变化率与由所确定的分量相对应的频率组成的参考信号之间的第一相关系数;以及第二计算装置,用于计算第二相关系数, 发动机和由对应于确定的部件的频率组成的参考信号。 使用第一和第二相关系数来计算发动机的工作负荷。

    Control apparatus and method and control unit
    249.
    发明申请
    Control apparatus and method and control unit 有权
    控制装置及方法及控制单元

    公开(公告)号:US20090164090A1

    公开(公告)日:2009-06-25

    申请号:US12314896

    申请日:2008-12-18

    Abstract: 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.

    Abstract translation: 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。

    Control system for internal combustion engine

    公开(公告)号:US20090070013A1

    公开(公告)日:2009-03-12

    申请号:US11665855

    申请日:2005-09-27

    Abstract: To provide a control system for an internal combustion engine, which is capable of attaining both the securing of excellent drivability and the reduction of impact occurring when a movable part abuts against a restriction part at the same time. The control system 1 includes a variable valve lift mechanism 50 that changes a valve lift Liftin, and includes a restriction part 67a for having a movable part 65 abut thereagainst for restricting the valve lift Liftin such that it does not exceed a predetermined limit lift Liftin_L, and a variable intake air amount mechanism 11 that changes the intake air amount. The control system calculates a control input ULiftin for control of the variable valve lift mechanism 50, with a predetermined control algorithm including a disturbance suppression parameter POLE_lf (step 54), such that the valve lift Liftin follows up the target valve lift Liftin_cmd. When a determination that the movable part 65 has abutted against the restriction part 67a is made, the control system sets the disturbance suppression parameter POLE_lf such that the degree of suppression of the disturbance thereby becomes smaller than before the determination (step 73).

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