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1. 发明授权

US08676471B2 Method for determining an index of the fuel combustion in an engine cylinder 有权
标题翻译：用于确定发动机气缸中的燃料燃烧指数的方法
公开(公告)号：US08676471B2
公开(公告)日：2014-03-18
申请号：US12914807
申请日：2010-10-28
申请人： Alessandro Catanese , Fabio Autieri , Claudio Monferrato
发明人： Alessandro Catanese , Fabio Autieri , Claudio Monferrato
IPC分类号： G01M15/08 , G01L23/30 , F02B77/08 , F02D35/02 , F02D45/00
CPC分类号： F02D35/028 , F02D35/023
摘要： A method is provided for determining an index representing the crank angle at which a given fuel mass fraction has been burnt in a cylinder of the engine during an engine cycle. The method includes, but is not limited to sampling the pressure within the cylinder during the engine cycle, using the pressure samples for determining the heat release rate curve during the engine cycle, using the heat release rate curve for determining the cumulative heat release curve during the engine cycle, determining a minimum value and a maximum value of the cumulative heat release curve, using the given fuel mass fraction for calculating a target value of the cumulative heat release between the minimum and maximum values, finding a goal point of the cumulative heat release curve that corresponds to the target value, assuming the crank angle corresponding to the goal point as the index. The method further includes, but is not limited to determining an opening angle within the crank angular range corresponding to compression stroke of the engine cycle, determining a closing angle within the crank angular range corresponding to the expansion stroke of the engine cycle, using the opening and closing angles for delimiting between them a first angular window, and limiting the determination of the minimum and maximum values of the cumulative heat release curve within the first angular window.
摘要翻译：提供了一种用于确定表示在发动机循环期间给定燃料质量分数在发动机的气缸中燃烧的曲柄角的指标的方法。该方法包括但不限于在发动机循环期间使用用于确定发动机循环期间的放热速率曲线的压力样本使用用于确定在发动机循环期间的累积放热曲线的放热速率曲线来对发动机循环期间的气缸内的压力进行取样发动机循环，使用给定的燃料质量分数来确定累积放热曲线的最小值和最大值，以计算最小值和最大值之间的累积放热的目标值，找到累积热量的目标点释放曲线对应于目标值，假设对应于目标点的曲柄角为指标。该方法还包括但不限于确定与发动机循环的压缩冲程相对应的曲柄角度范围内的开度角，使用开度确定与发动机循环的膨胀冲程相对应的曲柄角度范围内的关闭角度以及用于在它们之间划定第一角度窗的闭合角度，并且限制第一角度窗内的累积放热曲线的最小值和最大值的确定。

2. 发明申请

US20110125388A1 METHOD FOR DETERMINING AN INDEX OF THE FUEL COMBUSTION IN AN ENGINE CYLINDER 有权
标题翻译：用于确定发动机气缸中燃料燃烧指数的方法
公开(公告)号：US20110125388A1
公开(公告)日：2011-05-26
申请号：US12914807
申请日：2010-10-28
申请人： Alessandro CATANESE , Fabio AUTIERI , Claudio MONFERRATO
发明人： Alessandro CATANESE , Fabio AUTIERI , Claudio MONFERRATO
IPC分类号： F02D43/04
CPC分类号： F02D35/028 , F02D35/023
摘要： A method is provided for determining an index representing the crank angle at which a given fuel mass fraction has been burnt in a cylinder of the engine during an engine cycle. The method includes, but is not limited to sampling the pressure within the cylinder during the engine cycle, using the pressure samples for determining the heat release rate curve during the engine cycle, using the heat release rate curve for determining the cumulative heat release curve during the engine cycle, determining a minimum value and a maximum value of thee cumulative heat release curve, using the given fuel mass fraction for calculating a target value of the cumulative heat release between the minimum and maximum values, finding a goal point of the cumulative heat release curve that corresponds to the target value, assuming the crank angle corresponding to the goal point as the index. The method further includes, but is not limited to determining an opening angle within the crank angular range corresponding to compression stroke of the engine cycle, determining a closing angle within the crank angular range corresponding to the expansion stroke of the engine cycle, using the opening and closing angles for delimiting between them a first angular window, and limiting the determination of the minimum and maximum values of the cumulative heat release curve within the first angular window.
摘要翻译：提供了一种用于确定表示在发动机循环期间给定燃料质量分数在发动机的气缸中燃烧的曲柄角的指标的方法。该方法包括但不限于在发动机循环期间使用用于确定发动机循环期间的放热速率曲线的压力样本使用用于确定在发动机循环期间的累积放热曲线的放热速率曲线来对发动机循环期间的气缸内的压力进行取样发动机循环，使用给定的燃料质量分数来确定最小值和最大值，以计算最小值和最大值之间的累积放热的目标值，找到累积热量的目标点释放曲线对应于目标值，假设对应于目标点的曲柄角为指标。该方法还包括但不限于确定与发动机循环的压缩冲程相对应的曲柄角度范围内的开度角，使用开度确定与发动机循环的膨胀冲程相对应的曲柄角度范围内的关闭角度以及用于在它们之间划定第一角度窗的闭合角度，并且限制第一角度窗内的累积放热曲线的最小值和最大值的确定。

3. 发明授权

US09109959B2 Circuit and method for measuring a resistance value of a resistive component 有权
标题翻译：用于测量电阻元件的电阻值的电路和方法
公开(公告)号：US09109959B2
公开(公告)日：2015-08-18
申请号：US13352827
申请日：2012-01-18
申请人： Stefano Nieddu , Fabio Autieri
发明人： Stefano Nieddu , Fabio Autieri
IPC分类号： G01K7/24
CPC分类号： G01K7/24
摘要： A method is provided for measuring a resistance value of a resistive component, which provides for connecting a pull up resistance, in series to the component and supplying a first voltage value to a free end of the pull up resistance and a second lower voltage value to a free end of the component, monitoring a signal indicative of a voltage value between the component and the pull up resistance, determining the difference between the monitored signal and a generated PWM signal having a high voltage value and low voltage value, integrating the difference, obtaining an output signal, varying a duty cycle of the PWM signal based on the variation over time of the output signal, acquiring a duty cycle of the PWM signal, and determining the resistance value of the resistive component based on the duty cycle value and of the pull up resistance value.
摘要翻译：提供了一种用于测量电阻分量的电阻值的方法，该电阻分量提供串联连接上拉电阻并将该第一电压值提供给上拉电阻的自由端，并将第二较低电压值提供给组件的自由端，监视表示部件和上拉电阻之间的电压值的信号，确定所监视的信号与产生的具有高电压值和低电压值的PWM信号之间的差异，获得输出信号，根据输出信号随时间的变化改变PWM信号的占空比，获取PWM信号的占空比，以及基于占空比值确定电阻分量的电阻值;以及上拉电阻值。

4. 发明申请

US20100145652A1 METHOD FOR ESTIMATING THE TEMPERATURE IN AN INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：在内燃机中估计温度的方法
公开(公告)号：US20100145652A1
公开(公告)日：2010-06-10
申请号：US12552709
申请日：2009-11-23
申请人： Paolo CASASSO , Fabio AUTIERI , Antonio GIUFFRIDA , Davide CARBONE , Filippo PARISI
发明人： Paolo CASASSO , Fabio AUTIERI , Antonio GIUFFRIDA , Davide CARBONE , Filippo PARISI
IPC分类号： G01K7/16 , G06F15/00
CPC分类号： G01K7/20
摘要： A method and circuit are provided for estimating the temperature in an internal combustion engine. The method includes, but is not limited to the steps of providing a sensor resistor (RTD) in the internal combustion engine, the sensor resistor (RTD) having a predetermined resistance-temperature characteristic, and estimating the temperature based on the resistance-temperature characteristic. The method also includes, but is not limited to the steps of providing to the sensor resistor (RTD) a reference current signal (I1) so that a sensor voltage (VRTD) is established across the sensor resistor (RTD), generating a reference voltage signal (V2), comparing the established sensor voltage (VRTD) with the reference voltage signal (V2), modifying the reference current signal (I1) and reference voltage signal (V2) on the basis of the comparison outcome so as to minimize the difference between the sensor voltage (VRTD) and the reference voltage signal (V2), and calculating the resistance value of the sensor resistor (RTD) based on the reference voltage signal (V2) and reference current signal (I1).
摘要翻译：提供了一种用于估计内燃机中的温度的方法和电路。该方法包括但不限于在内燃机中提供传感器电阻器（RTD），具有预定电阻温度特性的传感器电阻器（RTD）以及基于电阻温度特性估计温度的步骤。该方法还包括但不限于向传感器电阻器（RTD）提供参考电流信号（I1）的步骤，使得跨传感器电阻器（RTD）建立传感器电压（VRTD），产生参考电压信号（V2），将建立的传感器电压（VRTD）与参考电压信号（V2）进行比较，基于比较结果修改参考电流信号（I1）和参考电压信号（V2），以使差异最小化在传感器电压（VRTD）和参考电压信号（V2）之间，基于参考电压信号（V2）和参考电流信号（I1）计算传感器电阻器（RTD）的电阻值。

5. 发明申请

US20120185193A1 CIRCUIT AND METHOD FOR MEASURING A RESISTANCE VALUE OF A RESISTIVE COMPONENT 有权
标题翻译：用于测量电阻元件电阻值的电路和方法
公开(公告)号：US20120185193A1
公开(公告)日：2012-07-19
申请号：US13352827
申请日：2012-01-18
申请人： Stefano NIEDDU , Fabio AUTIERI
发明人： Stefano NIEDDU , Fabio AUTIERI
IPC分类号： G06F19/00
CPC分类号： G01K7/24
摘要： A method is provided for measuring a resistance value of a resistive component, which provides for connecting a pull up resistance, in series to the component and supplying a first voltage value to a free end of the pull up resistance and a second lower voltage value to a free end of the component, monitoring a signal indicative of a voltage value between the component and the pull up resistance, determining the difference between the monitored signal and a generated PWM signal having a high voltage value and low voltage value, integrating the difference, obtaining an output signal, varying a duty cycle of the PWM signal based on the variation over time of the output signal, acquiring a duty cycle of the PWM signal, and determining the resistance value of the resistive component based on the duty cycle value and of the pull up resistance value.
摘要翻译：提供了一种用于测量电阻分量的电阻值的方法，该电阻分量提供串联连接上拉电阻并将该第一电压值提供给上拉电阻的自由端，并将第二较低电压值提供给组件的自由端，监视表示部件和上拉电阻之间的电压值的信号，确定所监视的信号与产生的具有高电压值和低电压值的PWM信号之间的差异，获得输出信号，根据输出信号随时间的变化改变PWM信号的占空比，获取PWM信号的占空比，以及基于占空比值确定电阻分量的电阻值;以及上拉电阻值。

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