Patent · US Expired

Method, a computer program, and a control and regulating unit for operating an internal combustion engine

US6769395B2 · kind B2 · utility

2Cited by

5References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Werner Jaksch · Hessigheim, DE
Ernst Wild · Oberriexingen, DE
Kristina Eberle · Markgröningen, DE
Lutz Reuschenbach · Stuttgart, DE
Thomas Hotz · Bruchsal, DE

Key dates

Filing date	Sep 14, 2001
Grant date	Aug 3, 2004
Priority date	—
Expiry date	Sep 14, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine. The latter has at least one combustion, one induction pipe, and one throttle valve. From the actual position of the throttle valve, a gas charge of the combustion chamber is defined. To improve the emissions and fuel consumption characteristics of the internal combustion engine, the minimum gas pressure is measured that exists in the induction pipe assigned to the combustion chamber at the end of the intake stroke. From this gas pressure, a value is determined which more closely approximates the actual gas charge of the combustion chamber.

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