Patent · US Expired

Method for monitoring the speed of a bi-turbocharger

US7380401B2 · kind B2 · utility

13Cited by

8References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Henn · Lehre, DE
Franz Kunz · Fairview Avenue, DE
Hong Zhang · Tegernheim, DE

Key dates

Filing date	Apr 28, 2004
Grant date	Jun 3, 2008
Priority date	—
Expiry date	Oct 1, 2024

Classification

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

Abstract

A method and a device for monitoring a rotational speed of a first charger for an internal combustion engine, especially an exhaust gas turbocharger, are provided. A first exhaust value representing an exhaust gas composition of the internal combustion engine in a first exhaust section is defined, and a first speed value representing the rotational speed of the first charger is determined according to the defined first exhaust value. The first exhaust value is regulated to a predefined first reference value using a first correcting variable which is ascertained as required for regulation. The first rotational speed value is determined depending on the first correcting variable.

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