| PISTON-TEMPERATURE MEASURING SYSTEM USING ELECTROMAGNETIC INDUCTION WITH VERIFICATION BY A TELEMETRY SYSTEM |
| H. H. LEE1, H. W. BANG1, S. K. KAUH1, S. I. KIM2 |
1Seoul National University
2Hyundai Motor Company & Kia Motor Corporation |
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| ABSTRACT |
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The development of an inner-piston-chamber temperature measurement system is a necessary step in engine development or when solving other fundamental problems related to automotive engines. There are various pre-existing measurement methods available, e.g., the linkage method, piston telemetry, templog, and the electromagnetic induction method. In this study, we first redesigned the coil sensor used in the electromagnetic induction method using PEEK and then used Taguchi methods to reduce the number of experiments in the development process and finally utilized piston telemetry via Bluetooth to verify the precision and accuracy of the redesigned PEEK coil sensor and electromagnetic induction method. The results displayed a reproducibility within 0.5 degrees and an accuracy within 2 degrees Celsius. |
| Key Words:
Piston temperature, Electromagnetic induction, Taguchi methods, Coil sensor, Piston telemetry, Temperature sensor, Thermistor, Ferrite, PEEK, Vehicle engine |
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