Method for parametrizing a linear lambda controller for an internal combustion engine

US5692487A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Willibald Schuerz · Pielenhofen, DE
• Florian Tisch · Lenggries, DE

Key dates

• Filing date: May 3, 1996
• Grant date: Dec 2, 1997
• Expiry date: May 3, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2041/1422
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for parametrizing a lambda controller of a lambda control device having a lambda sensor supplying an output signal at least partially exhibiting a linear dependency on an oxygen content in exhaust gas of an internal combustion engine, includes representing a transfer function of a lambda controlled system by a series connection of first and second first order delay elements and an idle time element in a lambda control loop. The first delay element contains a response behavior of the lambda sensor and the second delay element contains a sliding averaging of measured lambda values.