公开(公告)号：US11859591B2

公开(公告)日：2024-01-02

申请号：US18170005

申请日：2023-02-16

Applicant: Maserati S.p.A.

Inventor： Marco Fabbri ,  Filippo Carra ,  Lorenzo Paolucci ,  Simone Ferrante ,  Francesco Marcigliano

IPC: F02P5/15 ,  F02P15/02 ,  F02P5/153

CPC classification number: F02P5/153 ,  F02P15/02

Abstract: In a gasoline internal combustion engine having a first and second spark plugs for each cylinder, associated, respectively, with a combustion pre-chamber and with a combustion chamber, engine crank angle of ignition (ECAI) of the first and second spark plugs are controlled as a function of engine load and engine rotation speed, and as a function of a required value of torque delivered by the engine, referring to a single normalized reference surface, which is the same for any operating point of the engine, and which supplies efficiency of the engine as a function of a difference between ECAI of the first spark plug and an optimal value of this angle at which the efficiency becomes maximum, and as a function of a difference between the ECAI of the second spark plug and an optimal value of this angle at which the efficiency becomes maximum.