Method for predetermining a motion state of a drive shaft of an internal combustion engine

US8813547B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Matthias Cwik · Stuttgart, DE
• Markus Roessle · Stuttgart, DE
• Ewald Mauritz · Rutesheim, DE
• Stefan Tumback · Stuttgart, DE

Key dates

• Filing date: Feb 8, 2011
• Grant date: Aug 26, 2014
• Expiry date: Feb 8, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02N2300/2008
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a method for predetermining a motion state (BZn+1) of a drive shaft (222) of an internal combustion engine (210) on the basis of previous motion states (BZn, BZn−2) of the drive shaft (222), wherein properties (tn−2, ωn−2) allocated to a first previous motion state (BZn−2) and properties (tn, ωn) allocated to a second previous motion state (BZn) are used and the drive shaft (222) assumes periodically recurring angular positions (φn−2, φn, φn+2; φn−1, φn+1). The invention is characterized in that a future motion state (BZn+1) and the properties (tn−1, φn+1) allocated thereto of the drive shaft (222) are determined in an angular position on the basis of the first evaluated previous motion state (BZn−2) and the second evaluated previous motion state (BZn), wherein the angular position (φn+1) of the determined future motion state (BZn+1)of the drive shaft (222) is not equal to an angular position (φn−2, φn) of the first and second previous motion state (BZn, BZn−2).