Three Years Field Experience with the Lambda-Sensor in Automotive Control Systems

The temperature mappings of Lambda-Sensors in more than 30 different applications with closed-loop systems are presented.

A new measuring technique is introduced, which allows to estimate the control performance of the Lambda-sensor in a laboratory test. The special influences of very hot (> 900 °C) and cold (< 400 °C) applications and of lead poisoning upon this control performance are discussed.

As a result there are given some guidelines for the user of Lambda-sensors.