Method and device for filtering a signal

US7051058B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Horst Wagner · Midland School, US
• Dirk Samuelsen · Ludwigsburg, DE
• Ruediger Fehrmann · Leonberg, DE

Key dates

• Filing date: May 3, 2001
• Grant date: May 23, 2006
• Expiry date: Dec 19, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2011/103
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method and a device are described for filtering a variable. A first filtering arrangement is used for forming an output variable as a function of an input variable, the first filtering arrangement having at least a delaying effect. The input variable of the first filtering arrangement is corrected using a correcting variable which is obtained by starting from the input variable of the first filtering arrangement and by filtering, using a second filtering arrangement.