公开(公告)号：US10563607B2

公开(公告)日：2020-02-18

申请号：US15975357

申请日：2018-05-09

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Matteo De Cesare ,  Enrico Brugnoni ,  Nicola Torcolini ,  Federico Monti

IPC: F02D41/24 ,  F02M37/04 ,  F02M37/08 ,  F04B49/06 ,  F02D41/22

Abstract: A method is described to control an actuation profile of an electromechanical linear actuator device of an internal combustion engine designed to control the movement of a component; the internal combustion engine comprises a sensor, which faces the actuator device and is designed to detect the noise generated by the movement of the component; the method comprises the steps of acquiring, by means of the sensor, the intensity of a signal generated by the impact of the component against a limit stop; identifying a first listening window of the signal associated with said impact; calculating a noise index inside the listening window; comparing the noise index with a reference value; and controlling the actuation profile of the actuator device based on this comparison.

公开(公告)号：US20180328303A1

公开(公告)日：2018-11-15

申请号：US15975357

申请日：2018-05-09

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Matteo De Cesare ,  Enrico Brugnoni ,  Nicola Torcolini ,  Federico Monti

IPC: F02D41/24 ,  F02M37/08 ,  F02M37/04 ,  F04B49/06 ,  F02D41/22

CPC classification number: F02D41/2464 ,  F02D41/20 ,  F02D41/221 ,  F02D41/3845 ,  F02D2041/2037 ,  F02D2041/224 ,  F02D2200/025 ,  F02M37/043 ,  F02M37/08 ,  F04B49/065 ,  H01F7/1844 ,  H01F2007/1855 ,  H01F2007/1866

Abstract: A method is described to control an actuation profile of an electromechanical linear actuator device of an internal combustion engine designed to control the movement of a component; the internal combustion engine comprises a sensor, which faces the actuator device and is designed to detect the noise generated by the movement of the component; the method comprises the steps of acquiring, by means of the sensor, the intensity of a signal generated by the impact of the component against a limit stop; identifying a first listening window of the signal associated with said impact; calculating a noise index inside the listening window; comparing the noise index with a reference value; and controlling the actuation profile of the actuator device based on this comparison.

公开(公告)号：US10609478B2

公开(公告)日：2020-03-31

申请号：US15387949

申请日：2016-12-22

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Matteo De Cesare ,  Federico Covassin ,  Antonio Barbuto ,  Federico Monti

IPC: H04R3/00 ,  G01H3/12 ,  F02D41/28 ,  F02D41/00 ,  G01M15/12

Abstract: A device for the acquisition and conditioning of a sound signal generated by a source of an internal combustion engine and comprising a box-shaped support body having a first measuring assembly and a second measuring assembly; wherein the first measuring assembly is provided with at least two first microphones which lie on a first plane and are configured for the detection of a first acoustic signal generated by the source along a first provenance direction; and wherein the second measuring assembly is provided with at least a second microphone arranged on a second plane configured for the detection of a second acoustic signal generated by the source along a second provenance direction different from the first provenance direction.

公开(公告)号：US20200018263A1

公开(公告)日：2020-01-16

申请号：US16507478

申请日：2019-07-10

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Giovanni Bonandrini ,  Giovanni Stanzani ,  Federico Monti ,  Antonio Barbuto

IPC: F02M25/025 ,  F02P23/00 ,  F02M25/022

Abstract: A system for feeding water to at least one combustion chamber in an internal combustion engine having: a tank designed to contain a quantity of water; a feeding duct; a pump designed to draw water from the tank and to pump pressurised water into the feeding duct; and at least one silver-containing body which is contained in the tank in contact with the water.