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.