The Research of Fault Diagnosis Method for ECU Controllers in Electric Vehicles Based on CAN Bus

Abstract:

With the increasing degree of automotive electronics, automotive electronic control systems continue to increase and a large amount of these complex systems using electronic chips to perform their own function, making them very difficult to repair. For ease of maintenance, automotive electronic control systems are generally designed with self-diagnostic function, which is usually referred to OBD diagnostic feature that can automatically diagnose faults of systems, store the Diagnostic Trouble Code (DTC) in memory and can be read through the communication port. This article mainly focuses on fault diagnostic method for ECU in electric vehicle based on CAN bus, for electric vehicles are developed very fast in order to solve the energy crisis and environmental pollution. This diagnostic system described in the article has designed a host computer and a lower machine. The development of software in host computer is based on LabVIEW virtual instrument technology and NEC micro-processing chip is used to develop the lower machine, achieving the automatic and controlled ECU test.

• Periodical: Applied Mechanics and Materials (Volume 437)
• Pages: 639-642
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.437.639
• Online since: October 2013
• Authors: Jin Rui Nan*, Jun Kui Huang, Zhi Chai, Cheng Lin
• Keywords: CAN Bus, ECU, Electric Vehicle (EV), Fault Diagnosis, LabVIEW

References

[1] KONG FENG, ZHANG LIYAN, ZENG JIE, et al. Automatic measurement and control system for vehicle ECU based on CAN bus [C]/Proceeding of the IEEE International Conference on Automation and Logistics. Washington, DC: IEEE Computer Society, 2007: 964-968.

DOI: 10.1109/ical.2007.4338706

[2] ISO 15765-2: Road Vehicles-Diagnostics on Controller Area Networks (CAN) (2003).

[3] J.F. Wang，Peter W. Tse L.S. He，et al. Remote sensing，diagnosis and collaborative maintenance with Web-enabled virtual instruments and mini-serves. The international Journal of Advanced Manufacturing Technology，2004, 2004: 764-722.

DOI: 10.1007/s00170-003-1753-4

[4] SAE J1939 Standard. J1939/21-Data Link Layer. SAE. (1994).

[5] SAE J1939 Physical Layer-Un-Shielded Twisted pair. 2003-11.