公开(公告)号：EP1705352A1

公开(公告)日：2006-09-27

申请号：EP05425121.0

申请日：2005-03-04

Applicant: STMicroelectronics S.r.l.

Inventor： Cesario, Nicola ,  Amato, Paolo ,  Di Meglio, Maurizio ,  Pirozzi, Francesco ,  Moselli, Giovanni ,  Taglialatela, Ferdinando ,  Carpentieri, Francesco

IPC: F02D35/02 ,  F02D41/14

CPC classification number: F02D41/2454 ,  F02D35/023 ,  F02D41/1401 ,  F02D41/1404 ,  F02D41/1405 ,  F02D41/1458 ,  F02D41/187 ,  F02D2041/141 ,  G06K9/6223

Abstract: A method of sensing the air/fuel ratio in a combustion chamber of an internal combustion engine that may be easily implemented by a respective low-cost device is disclosed.
The device includes a pressure sensor and a learning machine that generates a sensing signal representing the air/fuel ratio by processing the waveform of the pressure in at least a cylinder of the engine. In practice, the learning machine extracts characteristic parameters of the waveform of the pressure and in function of a certain number of them generates the sensing signal.

Abstract translation: 公开了一种可以容易地由相应的低成本装置实现的内燃机的燃烧室中的空燃比的检测方法。 该装置包括压力传感器和学习机，其通过处理发动机的至少一个气缸中的压力波形来产生表示空气/燃料比的感测信号。 在实践中，学习机提取压力波形的特征参数，并且在一定数量的函数中产生感测信号。

公开(公告)号：EP1885054B1

公开(公告)日：2009-10-07

申请号：EP06425561.5

申请日：2006-08-03

Applicant: STMicroelectronics S.r.l.

Inventor： Cesario, Nicola ,  Baratto, Stefano ,  Di Meglio, Maurizio

IPC: H02P21/13 ,  H02P21/14 ,  G05B13/04

CPC classification number: G05B13/04 ,  H02P21/13 ,  H02P21/18 ,  H02P21/24

公开(公告)号：EP1947761A1

公开(公告)日：2008-07-23

申请号：EP08100358.4

申请日：2008-01-11

Applicant: STMicroelectronics S.r.l.

Inventor： Pirozzi, Francesco ,  Di Meglio, Maurizio ,  Baratto, Stefano

IPC: H02P29/00

CPC classification number: H02M7/53873

Abstract: An efficient method of determining the three duty-cycles of the three PWM control signals of an inverter that drives a three-phase load in SVM mode and that requires a reduced number of steps advantageously exploits the fact that the three duty-cycles are modulated, in function of the angle γ of the phasor that represents the triplet of voltages to be applied, according to modulating signals that may be reconstructed from only two waveforms using reflection and reversal operations.
By storing these two waveforms in two look-up tables, it is possible to reconstruct the modulating signals for each value of the angle γ, with a single memory access and eventually an addition.

Abstract translation: 确定性采矿的逆变器的三个PWM控制信号的三个占空比那样的驱动器在SVM模式的三相负载和做的一种有效的方法需要的步骤的数目减少有利地利用了factthat三个占空比进行调制， 在相量³的角度的函数做darstellt电压的三重态而施用，gemäß到调制信号也可以从只有两个使用反射和反转操作波形重建。 通过在两个查询表中存储论文两个波形，有可能重构对于角度³的每一个值的调制信号，具有一个单一的存储器存取，并最终在加法。

公开(公告)号：EP1885054A1

公开(公告)日：2008-02-06

申请号：EP06425561.5

申请日：2006-08-03

Applicant: STMicroelectronics S.r.l.

Inventor： Cesario, Nicola ,  Baratto, Stefano ,  Di Meglio, Maurizio

IPC: H02P21/13 ,  H02P21/14 ,  G05B13/04

CPC classification number: G05B13/04 ,  H02P21/13 ,  H02P21/18 ,  H02P21/24

Abstract: A method for estimating data of the state of a system, as well as the EKF filters, allows to use nonlinear mathematical models that describe the systems, but ensures a more accurate precision. This result is due to the fact that the method is based on the EKF technique, but it differs from the EKF technique for adapting it to work with a filter that implements a first degree Stirling approximation formula.
This method may be used for estimating position and speed of a brushless motor and may be implemented in a relative device. Such a device may be used for controlling a brushless motor, or it may be introduced in the control loop of a brushless motor of a power steering system, in order to make the driver feel an antagonist torque on the steering wheel determined, according to a pre-established waveform, in function of the speed of the vehicle and of the steering angle.
The disclosed methods may even be implemented via software by a program executed by a computer or a microprocessor.

Abstract translation: 一种用于估计系统，以及所述EKF滤波器的状态的数据的方法，允许使用非线性数学模型并描述了系统，但是确保了更精确的精度。 这个结果是由于factthat是基于EKF技术中的方法，但它从EKF技术的不同之用于适配它与过滤器的工作做了实现第一程度斯特林近似式。 该方法可被用于估计的无刷电动机的位置和速度，并且可以在相对设备中实现。 这样的装置可以被用于控制无刷电机，或它可以在动力转向系统中的无刷电动机的控制回路进行介绍，为了使驾驶者感到在拮抗剂扭矩在方向盘上的确定性开采，雅丁到 预先建立的波形，在所述车辆的速度的函数和转向角的。 盘方法游离缺失甚至可以通过由计算机或微处理器执行的程序通过软件来实现。

公开(公告)号：EP2275946A1

公开(公告)日：2011-01-19

申请号：EP10180669.3

申请日：2005-03-04

Applicant: STMicroelectronics S.r.l.

Inventor： Cesario, Nicola ,  Amato, Paolo ,  Di Meglio, Maurizio ,  Pirozzi, Francesco ,  Moselli, Giovanni ,  Taglialatela Scafati, Ferdinando ,  Carpentieri, Francesco

IPC: G06F15/16 ,  H04L12/40

CPC classification number: F02D41/2454 ,  F02D35/023 ,  F02D41/1401 ,  F02D41/1404 ,  F02D41/1405 ,  F02D41/1458 ,  F02D41/187 ,  F02D2041/141 ,  G06K9/6223

Abstract: A probabilistic neural network, comprising a hidden layer of neurons, each computing respective membership matrix elements for an input vector of the neural network according to a respective radial basis function defined by a respective spread factor and according to the distance of the input vector from a respective constant vector, wherein said hidden layer comprises at least two neurons having different spread factors (S).
A method of training the novel probabilistic neural network is also disclosed.

Abstract translation: 一种概率神经网络，包括神经元的隐藏层，每个根据由相应的扩展因子定义的相应的径向基函数，并且根据输入向量与一个神经网络的输入向量的距离，计算神经网络的输入向量的各个隶属矩阵元素 相应的常数向量，其中所述隐层包括具有不同扩展因子（S）的至少两个神经元。 还公开了一种训练新型概率神经网络的方法。

公开(公告)号：EP1837629A1

公开(公告)日：2007-09-26

申请号：EP06425199.4

申请日：2006-03-23

Applicant: STMicroelectronics S.r.l.

Inventor： Pirozzi, Francesco ,  Di Meglio, Maurizio ,  Baratto, Stefano

IPC: G01D5/244 ,  H02P25/02

CPC classification number: G01D5/24404 ,  H02P25/03

Abstract: Variations of position of the rotor of a motor having a plurality of uniformly spaced sensors that generate a position pulse at every rotation by a pre-established angle of the rotor, are estimated by carrying out the steps of:
generating a first clock signal at a first frequency;
generating a second clock signal at a second frequency multiple than the first frequency by a first factor;
in each interval between two consecutive position pulses,
- counting the number of pulses of the first clock signal comprised in the interval;
- counting the number of pulses of the second clock signal comprised in the interval;
- each time the number of counted pulses of the second clock reaches the number of pulses of the first clock counted in an interval that precedes the currently considered interval, signaling that the position of the rotor has varied of an angle equal to the ratio between the pre-established angle and the factor.


This method is implemented in a respective fully digital device that is particular simple to realize.

Abstract translation: 通过执行以下步骤来估计具有多个均匀间隔的传感器的转子的位置变化，所述传感器在每个旋转处产生转子的预先设定的角度的位置脉冲，该步骤包括以下步骤：产生第一时钟信号 第一频率 以比第一频率多的第二频率产生第二因子的第二时钟信号; 在两个连续位置脉冲之间的每个间隔中， - 对包含在该间隔中的第一时钟信号的脉冲数进行计数; - 对包含在该间隔中的第二时钟信号的脉冲数进行计数; - 每当第二时钟的计数脉冲的数量达到在当前考虑的间隔之前的间隔中计数的第一时钟的脉冲数时，表明转子的位置已经改变等于 预先确定的角度和因素。 该方法在特别简单实现的相应的全数字设备中实现。