公开(公告)号：US20170188143A1

公开(公告)日：2017-06-29

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 ,  G01M15/12

CPC classification number: H04R3/005 ,  F02D41/0007 ,  F02D2041/288 ,  F02D2200/025 ,  G01H3/125 ,  G01M15/12 ,  H04R2430/20 ,  H04R2499/13 ,  Y02T10/144

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：US20180258812A1

公开(公告)日：2018-09-13

申请号：US15912737

申请日：2018-03-06

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Matteo DE CESARE ,  Nicola TORCOLINI

IPC: F01N3/20

Abstract: An exhaust system provided with exhaust gas after-treatment for a combustion engine comprising an exhaust pipe and a pumping device, which is buried inside the tank, from which it draws so as to feed a water solution of urea under pressure to an electromagnetic injector; the tank is supplied with urea powder and water, which are mixed on the inside so as to obtain a water solution of urea with a variable concentration; and a water supply circuit to supply water to the tank, which is provided with a first pipe, which draws the water from a basin and is regulated by a first valve, which allows water to be introduced into the tank, if necessary, or to be drained to the surrounding environment when the water quantity already contained in the tank is sufficient.

公开(公告)号：US20170122839A1

公开(公告)日：2017-05-04

申请号：US15341156

申请日：2016-11-02

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Federico STOLA ,  Matteo DE CESARE ,  Fabrizio PONTI ,  Vittorio RAVAGLIOLI

IPC: G01M15/06 ,  G01B21/22

Abstract: A method of estimating the MFB50 combustion index of the cylinders of an internal combustion engine provided with a drive shaft coupled to at least a pair of position sensors, each of which is arranged at a respective end of the drive shaft; the estimation method comprising the steps of: acquiring the signals coming from two position sensors; determining the angular torsion of the drive shaft based on the signals from the two position sensors; and estimating the MFB50 combustion index of the single cylinders of the internal combustion engine based on the angular torsion of the drive shaft.