High Temperature Measurements for On-Board Diagnostics of LEV/ULEV Systems

942054

10/01/1994

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/942054
Pages
8
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.
Additional Details
Publisher
Published
Oct 1, 1994
Product Code
942054
Content Type
Technical Paper
Language
English