Cycle-by-cycle variations in exhaust temperatures using thermocouple compensation techniques

Journal article

Exhaust gas temperatures in a 1.4 L, sparked ignition engine have been measured using fine wire thermocouples at different loads and speeds. However the thermocouples are not fast enough to resolve the rapid change in exhaust temperature. This paper discusses a new thermocouple compensation technique to resolve the cycle-by-cycle variations in exhaust temperature by segmentation. Simulation results show that the technique can find the lower time constants during blowdown, reducing the bias fr...

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Authors: Kar, K; Swain, A; Raine, R; Roberts, S; Stone, R

• Journal: SAE Technical Papers
• Publication date: 2006-01-01
• DOI: 10.4271/2006-01-1197
• Language: English