Extrapolation method for the angle-of-rotation position

US7047122B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jens Damitz · Mühlacker, DE
• Joachim Palmer · Ditzingen, DE
• Ruediger Fehrmann · Leonberg, DE
• Matthias Schueler · Steinheim, DE
• Alexander Schenck Zu Schweinsberg · Schwieberdingen, DE
• Arnold Engber · Groß-Umstadt, DE
• Thomas Steinert · Waiblingen, DE

Key dates

• Filing date: Mar 25, 2005
• Grant date: May 16, 2006
• Expiry date: Mar 25, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2041/288
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method is described for determining the angle-of-rotation position (φ) of a shaft of an internal combustion engine, in particular a crank angle (φ) of a crankshaft, information at least about incremental angles of rotation (Δφ) of the shaft and running times (T) for each incremental angle of rotation (Δφ) being detected on the basis of signals which indicate the rotation of the shaft and are spaced with intervals between them, and stored at least temporarily the instantaneous angle-of-rotation position (φ) being determined in the period of time between two signals by extrapolation of the angle-of-rotation position (φ) thus detected, taking into account at least one angular velocity ({overscore (ω)}) and/or change in angular velocity (Δ{overscore (ω)}) extrapolated from the stored information. In addition, a corresponding device is also described.