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    • 2. 发明授权
    • Control method and system for a fluid control device, based on position sensor learning
    • 基于位置传感器学习的流体控制装置的控制方法和系统
    • US08190297B2
    • 2012-05-29
    • US12496901
    • 2009-07-02
    • Andreas GunnarssonSimone BarberoRonnie MagnussonNando Vennettilli
    • Andreas GunnarssonSimone BarberoRonnie MagnussonNando Vennettilli
    • G05D7/00
    • F02D41/0007F02B37/24F02B39/00F02D41/2474Y02T10/144
    • A control method is provided for a fluid control device, particularly for an internal combustion engine, equipped with a position sensor having a nominal characteristic curve representative of a predetermined relationship between an admissible range of position values and a corresponding range of return electric signal values. The method includes, but is not limited to determining an offset (offsetopen; offsetclose) between a returned signal related to at least one defined position of the device and an expected signal related to the defined position of the device according to the nominal characteristic curve, estimating an updated characteristic curve of the sensor by applying the offset (offsetopen; offsetclose) to the nominal characteristic curve, and applying a predetermined control strategy of the fluid control device according to the updated characteristic curve.
    • 提供了一种用于流体控制装置的控制方法,特别是用于内燃机的流体控制装置,所述内燃机装备有位置传感器,所述位置传感器具有表示允许的位置值范围和相应的返回电信号值范围之间的预定关系的标称特性曲线。 该方法包括但不限于确定与设备的至少一个定义位置相关的返回信号与根据标称特性曲线与设备的限定位置相关的期望信号之间的偏移(偏移距离;偏移闭合) 通过将偏移(offsetopen; offsetclose)施加到标称特性曲线来估计传感器的更新特性曲线,并根据更新的特性曲线应用流体控制装置的预定控制策略。
    • 4. 发明授权
    • Method for diagnosing the integrity of a swirl generating system for an internal combustion engine
    • 用于诊断用于内燃机的涡流发生系统的完整性的方法
    • US08522748B2
    • 2013-09-03
    • US12880718
    • 2010-09-13
    • Fulvio BrosioNando VennettilliDomenico Rampone
    • Fulvio BrosioNando VennettilliDomenico Rampone
    • F02B31/00
    • F02B31/085F02D41/0002F02D41/221F02D2041/0015Y02T10/146Y02T10/42
    • A method is provided for diagnosing the integrity of a swirl generating system for an internal combustion engine. The swirl generating system includes, but is not limited to swirl controlling elements that are individually located in a respective air passage connecting the intake manifold of the engine to an intake port of an engine combustion chamber, an actuator having a movable shaft, a cinematic chain for mechanically connecting the swirl controlling elements to the actuator movable shaft, an actuator control unit for normally moving the actuator movable shaft in a first direction towards a first final position, and in a second opposite direction towards a second final position, and actuator sensor for sensing the position of the actuator movable shaft. The method providing to arrange at least a mechanical stop for directly acting on one component of the cinematic chain, in order to indirectly limit the movement of the actuator movable shaft in the first direction at a first checking position coincident or beyond the first final position, command the actuator control unit for moving the actuator movable shaft in the first direction towards the first checking position, and verify through the position sensing means whether the actuator movable shaft stops in the first checking position (CP1) or goes beyond.
    • 提供了一种用于诊断用于内燃机的涡流发生系统的完整性的方法。 涡旋发电系统包括但不限于涡旋控制元件,其独立地位于将发动机的进气歧管连接到发动机燃烧室的进气口的相应空气通道中,具有可移动轴的致动器,电动链 用于将涡流控制元件机械地连接到致动器可动轴;致动器控制单元,用于将致动器可动轴沿第一方向朝向第一最终位置和朝向第二最终位置的第二相反方向移动;致动器传感器,用于 感测致动器可动轴的位置。 所述方法提供至少布置用于直接作用在所述电影链的一个部件上的机械止动件,以便间接限制所述致动器可动轴在第一方向上的运动,所述第一检查位置与所述第一最终位置重合或超过所述第一最终位置, 指令致动器控制单元,用于沿第一方向朝向第一检查位置移动致动器可动轴,并且通过位置检测装置验证致动器可动轴是否在第一检查位置(CP1)中停止或超过。
    • 5. 发明授权
    • Method for estimating the oxygen concentration in internal combustion engines
    • 估计内燃机氧浓度的方法
    • US07946162B2
    • 2011-05-24
    • US12397427
    • 2009-03-04
    • Nando VennettilliMassimiliano Maira
    • Nando VennettilliMassimiliano Maira
    • G01M15/10
    • F02D41/18F02D41/0072F02D2041/1416F02D2041/1432F02D2200/0402F02D2200/0406F02D2200/0408F02D2200/0416F02M26/47
    • A method for estimating the oxygen concentration in an internal combustion engine that includes, but is not limited to an intake manifold, an exhaust manifold, an EGR system, a throttle valve, an air mass sensor for measuring a fresh air flow ({dot over (m)}thr) entering the intake manifold through the throttle valve, and cylinders. The method includes, but is not limited to the steps of estimating the total gas flow ({dot over (m)}o) entering the cylinders, calculating the EGR gas flow ({dot over (m)}egr), calculating the air fraction (f—air—em) of the gas flowing in the exhaust manifold, calculating the air mass (mim—air) entering the cylinders based on the air fraction (f—air—em) in the exhaust manifold, on the total gas flow ({dot over (m)}o) entering the cylinders, on the EGR gas flow ({dot over (m)}egr) and on the fresh air flow ({dot over (m)}thr), calculating the total mass (mim) in the intake manifold based on the fresh air flow ({dot over (m)}thr), on the EGR gas flow ({dot over (m)}egr) and on the total gas flow ({dot over (m)}o) entering the cylinders, calculating the air fraction (fair—im) in the intake manifold based on the air mass (mim—air) entering the cylinders and the total mass (mim) in the intake manifold, and calculating the oxygen mass concentration ([O2]m—im) in the intake manifold based on the air fraction (fair—im) in the intake manifold.
    • 一种用于估计内燃机中的氧浓度的方法,其包括但不限于进气歧管,排气歧管,EGR系统,节流阀,用于测量新鲜空气流的空气质量传感器({dot over (m)} thr)通过节流阀进入进气歧管和气缸。 该方法包括但不限于估计进入气缸的总气体流量({dot over(m)} o),计算EGR气体流量({dot over(m)} egr),计算空气 在排气歧管中流动的气体的分数(f-air-em),基于排气歧管中的空气分数(f-air-em)计算进入气缸的空气质量(mim-air),总气体 在EGR气流({dot over(m)} egr)和新鲜空气流({dot over(m)} thr)上的流量({dot over(m)} o)进入气缸,计算总计 基于新鲜空气流量({dot over(m)} thr),EGR气体流量({dot over(m)} egr)和总气体流量({dot over (m)} o)进入气缸,基于进入气缸的空气质量(mim-air)和进气歧管中的总质量(mim)计算进气歧管中的空气分数(fair-im),并计算 摄入量中的氧质量浓度([O2] m-im) 基于进气歧管中的空气部分(fair-im)的烟雾。
    • 6. 发明申请
    • METHOD FOR DIAGNOSING THE INTEGRITY OF A SWIRL GENERATING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    • 用于诊断用于内燃机的涡轮发电系统的完整性的方法
    • US20120006296A1
    • 2012-01-12
    • US12880718
    • 2010-09-13
    • Fulvio BROSIONando VENNETTILLIDomenico RAMPONE
    • Fulvio BROSIONando VENNETTILLIDomenico RAMPONE
    • F02B31/00
    • F02B31/085F02D41/0002F02D41/221F02D2041/0015Y02T10/146Y02T10/42
    • A method is provided for diagnosing the integrity of a swirl generating system for an internal combustion engine. The swirl generating system includes, but is not limited to swirl controlling elements that are individually located in a respective air passage connecting the intake manifold of the engine to an intake port of an engine combustion chamber, an actuator having a movable shaft, a cinematic chain for mechanically connecting the swirl controlling elements to the actuator movable shaft, an actuator control unit for normally moving the actuator movable shaft in a first direction towards a first final position, and in a second opposite direction towards a second final position, and actuator sensor for sensing the position of the actuator movable shaft. The method providing to arrange at least a mechanical stop for directly acting on one component of the cinematic chain, in order to indirectly limit the movement of the actuator movable shaft in the first direction at a first checking position coincident or beyond the first final position, command the actuator control unit for moving the actuator movable shaft in the first direction towards the first checking position, and verify through the position sensing means whether the actuator movable shaft stops in the first checking position (CP1) or goes beyond.
    • 提供了一种用于诊断用于内燃机的涡流发生系统的完整性的方法。 涡旋发电系统包括但不限于涡旋控制元件,其独立地位于将发动机的进气歧管连接到发动机燃烧室的进气口的相应空气通道中,具有可移动轴的致动器,电动链 用于将涡流控制元件机械地连接到致动器可动轴;致动器控制单元,用于将致动器可动轴沿第一方向朝向第一最终位置和朝向第二最终位置的第二相反方向移动;致动器传感器,用于 感测致动器可动轴的位置。 所述方法提供至少布置用于直接作用在所述电影链的一个部件上的机械止动件,以便间接限制所述致动器可动轴在第一方向上的运动,所述第一检查位置与所述第一最终位置重合或超过所述第一最终位置, 指令致动器控制单元,用于沿第一方向朝向第一检查位置移动致动器可动轴,并且通过位置检测装置验证致动器可动轴是否在第一检查位置(CP1)中停止或超过。
    • 8. 发明申请
    • METHOD FOR CONTROLLING THE EGR AND THE THROTTLE VALVES IN AN INTERNAL COMBUSTION ENGINE
    • 用于在内燃机中控制EGR和节流阀的方法
    • US20100175674A1
    • 2010-07-15
    • US12465921
    • 2009-05-14
    • Nando VENNETTILLIMassimiliano MAIRA
    • Nando VENNETTILLIMassimiliano MAIRA
    • F02D41/00F02B33/00
    • F02D41/0052F02D41/0007F02D41/1454F02D2041/0017F02M26/05F02M26/25F02M26/48F02M26/53F02M26/55Y02T10/47
    • A method and system are provided for controlling a throttle valve and an EGR valve in internal combustion engine. The method includes, but is not limited to the steps of measuring an actual fresh mass air flow value entering the engine, determining an exhaust oxygen concentration set point ([O2]spEM) indicative of the oxygen concentration in the exhaust manifold, calculating an air reference value (Airreference) as a function of the exhaust oxygen concentration set point ([O2]spEM) and determining an oxygen concentration feedback value ([O2]fdIM, [O2]fdEM) representative of the oxygen concentration in the engine. The method further includes, but is not limited to the steps of obtaining a position information for the throttvalve by by comparing the actual fresh mass air flow value and air reference value (Airreference) and obtaining a position information for the EGR valve by comparing the oxygen concentration feedback value ([O2]fdIM, [O2]fdEM) and oxygen concentration set point ([O2]spEM). Finally, the method includes, but is not limited to the steps of controlling the throttle valve and the EGR valve according to the respectively corresponding position information.
    • 提供了一种用于控制内燃机中的节流阀和EGR阀的方法和系统。 该方法包括但不限于测量进入发动机的实际新鲜空气质量空气流量值的步骤,确定表示排气歧管中氧浓度的排气氧浓度设定点([O 2] spEM),计算空气 作为排气氧浓度设定点([O2] spEM)的函数的参考值(Airreference),并确定代表发动机中氧浓度的氧浓度反馈值([O2] fdIM,[O2] fdEM)。 该方法还包括但不限于通过比较实际新鲜空气质量空气流量值和空气参考值(Airreference)来获得节流阀的位置信息的步骤,并通过比较氧气来获得EGR阀的位置信息 浓度反馈值([O2] fdIM,[O2] fdEM)和氧浓度设定值([O2] spEM))。 最后,该方法包括但不限于根据分别对应的位置信息控制节流阀和EGR阀的步骤。
    • 9. 发明申请
    • METHOD FOR ESTIMATING THE OXYGEN CONCENTRATION IN INTERNAL COMBUSTION ENGINES
    • 用于估算内燃机中的氧浓度的方法
    • US20100005872A1
    • 2010-01-14
    • US12397427
    • 2009-03-04
    • Nando VENNETTILLIMassimiliano MAIRA
    • Nando VENNETTILLIMassimiliano MAIRA
    • G01M15/10
    • F02D41/18F02D41/0072F02D2041/1416F02D2041/1432F02D2200/0402F02D2200/0406F02D2200/0408F02D2200/0416F02M26/47
    • A method for estimating the oxygen concentration in an internal combustion engine that includes, but is not limited to an intake manifold, an exhaust manifold, an EGR system, a throttle valve, an air mass sensor for measuring a fresh air flow ({dot over (m)}thr) entering the intake manifold through the throttle valve, and cylinders. The method includes, but is not limited to the steps of estimating the total gas flow ({dot over (m)}o) entering the cylinders, calculating the EGR gas flow ({dot over (m)}egr), calculating the air fraction (f—air—em) of the gas flowing in the exhaust manifold, calculating the air mass (mim—air) entering the cylinders based on the air fraction (f—air—em) in the exhaust manifold, on the total gas flow ({dot over (m)}o) entering the cylinders, on the EGR gas flow ({dot over (m)}egr) and on the fresh air flow ({dot over (m)}thr), calculating the total mass (mim) in the intake manifold based on the fresh air flow ({dot over (m)}thr), on the EGR gas flow ({dot over (m)}egr) and on the total gas flow ({dot over (m)}o) entering the cylinders, calculating the air fraction (fair—im) in the intake manifold based on the air mass (mim—air) entering the cylinders and the total mass (mim) in the intake manifold, and calculating the oxygen mass concentration ([O2]m—im) in the intake manifold based on the air fraction (fair—im) in the intake manifold.
    • 一种用于估计内燃机中的氧浓度的方法,其包括但不限于进气歧管,排气歧管,EGR系统,节流阀,用于测量新鲜空气流的空气质量传感器({dot over (m)} thr)通过节流阀进入进气歧管和气缸。 该方法包括但不限于估计进入气缸的总气体流量({dot over(m)} o),计算EGR气体流量({dot over(m)} egr),计算空气 在排气歧管中流动的气体的分数(f-air-em),基于排气歧管中的空气分数(f-air-em)计算进入气缸的空气质量(mim-air),总气体 在EGR气流({dot over(m)} egr)和新鲜空气流({dot over(m)} thr)上的流量({dot over(m)} o)进入气缸,计算总计 基于新鲜空气流量({dot over(m)} thr),EGR气体流量({dot over(m)} egr)和总气体流量({dot over (m)} o)进入气缸,基于进入气缸的空气质量(mim-air)和进气歧管中的总质量(mim)计算进气歧管中的空气分数(fair-im),并计算 基于进气歧管的氧气质量浓度([O2] m-im) 进气歧管中的空气部分(fair-im)。
    • 10. 发明授权
    • Method for the diagnosis of the EGR cooler efficiency in a diesel engine
    • 柴油发动机EGR冷却器效率的诊断方法
    • US08386204B2
    • 2013-02-26
    • US12877924
    • 2010-09-08
    • Francesco CianfloneMorena BrunoNando Vennettilli
    • Francesco CianfloneMorena BrunoNando Vennettilli
    • G01K15/00G01K19/00
    • F02M26/33
    • A method is provided for the diagnosis of the EGR cooler efficiency in a Diesel engine that includes but is not limited to construction of a model for determining the temperature drop y=ΔT in the EGR cooler, the model having a parameter vector θ and an input vector x; performing a model calibration phase in order to estimate the bias h0 of the system; calculation of a set of primary residuals ε(θ0, x, ΔT), staffing from the model equation and using the results of the calibration phase; calculation of a set of improved residuals εN(θ0): ɛ N ⁡ ( θ 0 ) = 1 N ⁢ ∑ k = 1 N ⁢ ( ɛ ⁡ ( θ 0 , x k , y k ) - h 0 ) where N is the number of samples on which the diagnostic test is performed; calculation of a diagnostic index S: S=εTNR0−1εN and, use of the diagnostic index S in order to diagnose the efficiency of the EGR cooler.
    • 提供了一种用于诊断柴油发动机中的EGR冷却器效率的方法,该方法包括但不限于用于确定EGR冷却器中的温度下降y =&Dgr; T的模型的结构,该模型具有参数矢量& 和输入向量x; 执行模型校准阶段以估计系统的偏差h0; 计算一组原始残差(& t; 0,x,&Dgr; T),从模型方程组成员,并使用校准阶段的结果; 一组改进的残差的计算(& t; 0):∈N⁡(&Thetas; 0)= 1NΣk = 1 N(⁡⁡(&Thetas; 0,xk,yk)-h 0) 其中N是进行诊断测试的样本数; 计算诊断指标S:S =&egr; TNR0-1&egr N,并使用诊断指数S来诊断EGR冷却器的效率。