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High Temperature Measurements for On-Board Diagnostics of LEV/ULEV Systems
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Abstract
High temperature exhaust gas sensors have been used since 1975 to monitor catalyst overtemperature in the Japan auto market. Heated catalyst systems introduced to meet LEV and ULEV will make use of high temperature sensors for control and diagnosis. This paper describes the history and the evolution of these sensors. The three leading sensor technologies consisting of thermistors, thermocouples, and resistive temperature detectors (RTD) are described. Interface and system requirements for each of the sensor technologies are summarized. Sensor response time characteristics interaction with system design are covered.
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Citation
LeGare, J. and Tamai, T., "High Temperature Measurements for On-Board Diagnostics of LEV/ULEV Systems," SAE Technical Paper 942054, 1994, https://doi.org/10.4271/942054.Also In
References
- “Novel Emission Technologies with Emphasis on Catalyst Cold Start Improvement Status Report on VW-Pierburg Burner/Catalyst Systems,” SAE Paper 940474 Polat, 0. et al February 1994
- “Use of Light-Off Catalysts to Meet the California LEV/ULEV Standards,” SAE Paper 930386 Summers, J.C et al February 1993
- “Ultra-Low Power Electrically-Heated Catalyst System,” SAE Paper 940465 Küper, P.F. et al February 1994
- “Optimization of Extruded Electrically Heated Catalysts,” SAE Paper 940468 Socha, L.S. et al February 1994
- “Concepts for Ultra Low Emission Vehicles,” SAE Paper 940469 Kollmann, K. et al February 1994
- “Heated Catalytic Converter Competing Technologies to Meet LEV Emission Standards,” SAE Paper 940470 Langen, P. et al February 1994
- “The Effect of Intermittent Engine Misfire and Air to Fuel Ratio Excursions on Exhaust Catalyst Temperature,” SAE Paper 94097 O'Sullivan, R.D. Will, N.S. February 1994
- “Thermal Response of Monolithic Catalytic Converters During Sustained Engine Misfiring: A Computational Study SAE Paper 881541 Oh, Se H. October 1988
- “Thermistor Temperature Sensors For Automotive Uses,” National Technical Report Ishikawa Tamai 34 4 1988
- “Automobile Combustion Control Sensors,” Internal Combustion Engine Nakahara Takami 30 8 1991