DOI QR코드

DOI QR Code

Study for Failure Cases on Engine Electronic Control Computer in Liquid Petroleum Gas vehicle

액화석유가스 자동차 엔진의 전자제어 컴퓨터의 고장사례 연구

  • Received : 2011.10.24
  • Accepted : 2011.12.26
  • Published : 2011.12.31

Abstract

The purpose of this paper analyzes and studies to improve the failure cases on the computer that one of electronic control elements for engine in liquified petroleum gas vehicle. The first case, it certified the non-starting phenomenon of engine that it's electronic control unit didn't control the fuel for idle speed actuator because of no given action signal in slow-cut solenoid valve. The second case, it knew the bad condition phenomenon of engine and back-fire by the wire melting of ignition coil and firing of transistor being inside ECU. The third case, it certified the action stoping phenomenon of engine and malfunctioning signal for engine ECU because of leakage of current and an excess current by moisture inflowing inside ECU curcuit plate. Therefore, it is thought that will elevate the durability and reliability of engine computer throughout procure of quality.

이 논문의 목적은 LPG 자동차의 전자제어에 대한 요소의 하나인 컴퓨터에 대한 고장사례를 찾아 분석하고 연구하는 것이다. 첫 번째 사례는, 엔진의 ECU가 슬로우 컷 솔레노이드 밸브에 작동 신호를 미입력하여 공회전 조절 액추에이터로 연료보정을 제대로 할 수 없어 엔진의 시동이 꺼지는 현상을 확인하였다. 두 번째 사례는 점화코일의 배선 녹음현상 및 ECU 내부의 트랜지스터(Transistor)가 열에 의한 소손으로 인해 운행중 엔진 부조화 현상 및 역화 현상이 발생한 것을 확인하였다. 세 번째 사례는 엔진의 ECU 회로판 내부의 수분유입으로 인해 전기가 누전되거나 과전류가 흘러 엔진의 어떤 시스템을 오작동 시키거나 엔진의 작동을 멈추게 하는 현상을 확인하였다. 따라서, 이러한 엔진 컴퓨터의 오작동 신호나 내부의 손상과 수분에 의한 부식현상이 생기지 않도록 철저한 품질확보를 통해 컴퓨터의 내구성과 신뢰성을 높여야 할 것으로 판단된다.

Keywords

References

  1. Ingo Gorile, " Electronic Engine Management at Bosch", SAE paper 840541.
  2. F. Taglialatela, G. Moselli and M. Lavorgna, "Engine Knock Detection and Control using In-cylinder Pressure Signal and Soft Computing Techniques", SAE paper 2005-24-061.
  3. G. Schmitz, U. Oligschlager, G. Eifler and H. Lechner, "Automated System for Optimized Calibration of Engine Management Systems", SAE paper 940151
  4. Engene Daunis and Allen Burmeister, "Report on Testing of Engine and Transmission ECU's Fiele Services Pumping Equipment", SAE paper 861171.
  5. Flavio Corradini and Maurizio Togninelli, "Gas Pressure Regulation to Drive LPG/CNG Systems with Standard Gasoline ECU", SAE paper 2003- 01-0709
  6. Klaus Lamberg, Jobst Richert and Rainer Raschert, "A New Environment for Integrated Development and Management of ECU Tests", SAE paper 2003- 01-1024.
  7. Andre Rolfsmeier, Jobst Richert and Robert Leinfellner, "A New Calibration System for ECU Development", SAE paper 2003-01-0131
  8. Mirko Conrad, Sadegh Sadeghipour and hans-Werner Wiesbrock, Automatic Evaluation of ECU Software Tests" SAE paper 2005-01-1659.
  9. Christian D. Lemm and Detlef Zerfowski, "Reliability Engineering in Automotive Industry for the Local Market", SAE paper 2009-28-0026.
  10. W. James Allen and Pierre Grondin and Alan Soltis, "Development of a Model-Based Powertrain and Vehicle Simulation for ECU Test Benches", SAE paper 2006-01-1602.
  11. W. James Allen and Pierre Grondin and Alan Soltis, "Development of a Model-Based Powertrain and Vehicle Simulation for ECU Test Benches", SAE paper 2006-01-1602.
  12. 현대자동차, "정비교육교재-전자제어엔진", (2001).
  13. GIT, "Hi-DS 장비사용법", (2009)
  14. Maintenance manual of Hyundai Motors, (2008).
  15. Maintenance manual of Hyundai Motors, (2008).
  16. Maintenance manual of GM Daewoo Motor, (2008)
  17. Il Kwon Lee, et al., "Automotive Failure Diagnosis", Sun Hak, (2002).

Cited by

  1. Study of Fire Examples for Electrical Wire Short and Insulated Coating Melting by Heating Including Automotive Engine Room vol.17, pp.6, 2013, https://doi.org/10.7842/kigas.2013.17.6.15
  2. 가솔린 엔진 배출가스 제어장치에 대한 고장사례 고찰 vol.20, pp.6, 2011, https://doi.org/10.7842/kigas.2016.20.6.37