Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Development of A/T Oil Temperature Sensor Plausibility Diagnostic Logic

자동변속기 오일 온도센서 출력 이상 진단 로직 개발

  • Kwon, Jun-Eui (Research & Development Division for Hyundai Motor Company & Kia Motors Corporation) ;
  • Choi, Young-Sun (Kefico Engineering & Technology Institute, KEFICO CORPORATION) ;
  • Sim, Jang-Sun (Kefico Engineering & Technology Institute, KEFICO CORPORATION)
  • Published : 2005.11.01
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Abstract

The CARB in USA has demanded OBD functions that detect any deterioration of performance of OTS as well as a simple defect of OTS which can affect emission to meet the reinforced emission regulation. In this paper, OTS plausibility monitoring functions to meet the demand from CARB are discussed. The output from OTS is used for the diagnostics of the torque converter clutch stuck and the gear ratio synchronous error. It is possible to diagnose the abnormality of OTS function by considering the oil temperature characteristics which changes according to the driving status of vehicles. In result, the OBD regulations of the CARB can be satisfied obligating car manufacturer to detect any problems in OTS functions which can affect emissions.

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References

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