Lambda probe electrode characteristics determining method involves loaded reference air volume with additional oxygen, over measurement period of oxygen partial pressure, for measuring internal resistance of probe in loaded condition

摘要

Lambda probe electrode characteristics determining method involves measuring a lambda probe (LS) voltage during unloaded and loaded condition by using a load resistance. A reference air volume is loaded with additional oxygen, over the measurement period of the oxygen partial pressure, for measuring an internal resistance of the probe in the loaded condition. Electrode characteristics of the probe are determined based on the measured internal resistance.