Verfahren zur Abschätzung einer in einen Verbrennungsmotor Eintretenden Lufttemperatur

Details

Veröffentlichungs-Nr.

EP4803870

Anmeldetag

2. März 2026

Veröffentlichung

9. September 2026

Rechtsraum

EP

IPC

G01K13/024, F02D41/00

Abstract

Method of estimating, by computer, a temperature (Tc) of a gaseous fluid at an intake valve (IV) of a spark ignition engine comprising an intake duct (IM) in which a throttle valve (TV) is housed, a first temperature and pressure sensor (SS) arranged at a central point between the throttle valve and said intake valve to generate a signal representative of a measured pressure value (p1) and a measured temperature (T1), the method comprising: a first step of virtually partitioning a main volume (PV) of the intake duct between said throttle valve and said intake valve considering a sub-volume (SV) of the main volume, arranged immediately upstream of the intake valve, and a second step of acquiring a measured pressure value (p1) by means of said temperature and pressure sensor (SS) and considering it as uniform throughout the main volume, and a third step of calculating said estimate of the temperature (Tc) at the intake valve (IV) on the basis of a heat balance function of a heat exchange between the fluid and walls delimiting the sub-volume (SV), a mass balance function of the said measured pressure value (p1).

Anmelder

Firma

FPT Industrial S.p.A.

Land

🇮🇹 Italien

Fachgebiete