Patent · US Active

Method, computing unit, and computer program for operating an internal combustion engine

US11746720B2 · kind B2 · utility

0Cited by

0References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Magnus Labbe · Heubach, DE
Bernd Kraewer · Winnenden, DE
Thomas Kuhn · Heilbronn, DE

Key dates

Filing date	May 26, 2022
Grant date	Sep 5, 2023
Priority date	—
Expiry date	May 26, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method (100) is proposed for operating an internal combustion engine (210), which comprises a lean-burn engine having compression-ignition, having a throttle valve (213) in an air path (212) upstream of the internal combustion engine (210) and an exhaust gas posttreatment system (202) downstream of the internal combustion engine (210), comprising a control of the internal combustion engine (210) according to a present load demand (130) using metering of an amount of fuel in dependence on the present load demand; and if a load demand (130) is absent in a heating operating mode, further comprising partially closing (140) the throttle valve (213) and defining a minimum value for the amount of fuel, which is greater than zero. Furthermore, a computing unit and a computer program for carrying out such a method (100) are proposed.

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