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자동차 고속 CAN 통신에서 회로단선 고장진단에 관한실험적 연구 An Experimental Study on Circuit Open Circuit Fault Diagnosis in High-Speed CAN Communication of Automobiles

손성배, 강성구, 김철수
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한국기계기술학회지 (韓國機械技術學會誌)
제23권 제2호 (2021.04)
pp.192-197
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

In this paper, each controller's unique ID and PICO oscilloscope were used to measure the voltage waveform of each CAN communication line, and compare and analyze the serial decoding results. Using the voltage change level of the CAN communication line, it was possible to check whether the CAN-High line and the Low line were disconnected. And it was possible to infer the circuit disconnection point between the controller and the controller only with the unique ID information of each controller. And when the CAN-High circuit was disconnected, the voltage of the high line was measured at the same voltage level as the Low line.

키워드
CAN communicationCAN 통신Open circuit회로단선Unique can ID information고유 CAN ID정보Circuit defect회로결함Communication failure diagnosis통신오류진단
저자
  • 손성배(강릉원주대학교) | Sung-Bae Sohn Corresponding Author
  • 강성구(한국폴리텍대학) | Sung-Gu Kang
  • 김철수(강릉원주대학교) | Chul-Soo Kim