Moselli
Giovanni Moselli, Grumo Nevano IT
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20090005953 | METHOD AND ASSOCIATED DEVICE FOR SENSING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE - 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 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 one cylinder of the engine. In practice, the learning machine extracts characteristic parameters of the waveform of the pressure and as a function of a certain number of them generates the sensing signal. | 01-01-2009 |
20110218727 | METHOD AND ASSOCIATED DEVICE FOR SENSING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE - 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 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 one cylinder of the engine. In practice, the learning machine extracts characteristic parameters of the waveform of the pressure and as a function of a certain number of them generates the sensing signal. | 09-08-2011 |
Giovanni Moselli, Sant'Arpino IT
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20110160912 | METHOD AND SYSTEM FOR CONTROLLING ELECTRICAL MACHINES - An embodiment is a method, and related system, to implement the square root extraction operation, which grants a 32 bits precision, which has high execution speed and is able to process a decimal radicand. An embodiment relates to a method for controlling an electric machine, comprising the detection of the value of at least one electrical quantity characterizing the machine operation and processing the detected value of said electrical quantity. The control method controls the machine operation on the basis of this processing. In particular the processing of the detected value of the electrical quantity comprises calculating a square root of a radicand value related to the detected value of electrical quantities. The calculation of the square root includes: calculating an approximated value of the square root, having a first precision, and then calculating a corrective value and combining said approximated value with said corrective value to obtain a square root value having a second precision greater than the first precision. | 06-30-2011 |
Giovanni Moselli, S. Arpino IT
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20120025745 | CONTROL CIRCUIT OF AN ELECTRIC MOTOR WITH A MEASURE DELAY COMPENSATION AND MOTOR SYSTEM COMPRISING THE CIRCUIT - A control circuit controls an electric motor and includes: a measuring device configured to measure a first phase current of the motor and provide a corresponding first analog signal; an analog-to-digital converter structured to convert the first analog signal into a first digital signal; a conversion module for generating a first converted digital signal representative of the first digital signal expressed in a rotating reference system; a node structured to compare the first converted digital signal into a first reference signal and generate a first error signal; and a measure control circuit structured to provide a timing signal of the analog-to-digital converter depending on the first error signal and a time delay introduced by the measuring device. | 02-02-2012 |
Giovanni Moselli, S. Arpino (se) IT
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20150022131 | ELECTRIC CIRCUIT AND METHOD FOR ESTIMATING THE ANGULAR POSITION OF A ROTOR OF AN ELECTRIC MOTOR, AND DEVICE FOR CONTROLLING AN ELECTRIC MOTOR - Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor. | 01-22-2015 |