Patent · US Active

Method and device for measuring the rotational speed of a turbocompressor, and motor vehicle

US9121862B2 · kind B2 · utility

2Cited by

6References

14Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Willibald Reitmeier · Hohenschambach, DE
Bernd Siewert · Regensburg, DE
Manfred Weigl · Viehhausen, DE
Andreas Wildgen · Nittendorf, DE

Key dates

Filing date	Apr 5, 2012
Grant date	Sep 1, 2015
Priority date	—
Expiry date	May 11, 2032

Classification

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

Abstract

A method and a device for measuring the rotational speed of a turbocompressor, in particular a turbocharger of a motor vehicle. A frequency of pressure pulses generated in the medium the blades or by the shaft of the turbocompressor is measured using high-frequency signal portion of a pressure sensor, and the turbocompressor rotational speed is ascertained from the measured pressure pulse frequency. Furthermore, the charge pressure of the turbocompressor can be ascertained from the low-frequency signal of the pressure sensor so that a single sensor is sufficient for both measurements. The pressure sensor can be arranged in the intake system downstream of the compressor, upstream or downstream of an intercooler.

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