Patent · US Expired

Method and assembly for determining rational speed with variable switching hysteresis

US6967476B2 · kind B2 · utility

7Cited by

7References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ruediger Block · Ditzingen, DE
Christelle Andriot · Ludwigsburg, DE
Rasmus Rettig · Gerlingen, DE
Klaus Walter · Paderborn, DE

Key dates

Filing date	Mar 20, 2003
Grant date	Nov 22, 2005
Priority date	—
Expiry date	Mar 20, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01P3/487
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals (1) are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (1). When the element moves below a predetermined limiting value (fGrenz), a relatively great switching hysteresis (Hyst0) is set, and when the limiting value (fGrenz) is exceeded, a reduced switching hysteresis (H1) is set.

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