Patent · US Active

Air charge determination method, engine control unit and internal combustion engine

US10557422B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Elmar Millich · Berlin, DE
Lars Petersen · Meinersen, DE
Andre Shurkewitsch · Calberlah, DE
Jan Vogelsang · Braunschweig, DE

Key dates

Filing date	Dec 11, 2017
Grant date	Feb 11, 2020
Priority date	—
Expiry date	Dec 30, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/704
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for determining a quantity of air within a cylinder of an internal combustion engine includes the steps of scaling an intake manifold pressure and an exhaust gas pressure in dependence on an actual ambient air pressure and a standard ambient air pressure in order to provide a scaled intake manifold pressure and a scaled exhaust gas pressure, implementing an air charge calculating algorithm produced under a standard ambient air pressure operating condition, in order to determine a standard quantity of air based on the scaled intake manifold pressure and the scaled exhaust gas pressure, and scaling the standard quantity of air in dependence on the actual ambient air pressure and the standard ambient air pressure in order to calculate the quantity of air within the cylinder of the internal combustion engine. An engine control unit and a method for controlling an internal combustion engine are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.