Autors: Dzhelekarski, P., Alexiev, D. S.
Title: READING AND INTERPRETING DIAGNOSTIC DATA FROM VEHICLE OBDII SYSTEM
Keywords: OBD, diagnostics, ISO 15031-5, KWP 2000 and ISO 9141-2Abstract: This paper presents reading and interpreting diagnostic data from vehicle OBDII
(On-Board Diagnostics II) system using a PC-based diagnostic tester. The current work
represents the data link layer and the application layer of a diagnostic tester project. The
paper begins with a brief description of the diagnostic protocols. The ISO 9141-2 and ISO
14230 protocols have been chosen for implementation mainly because they share the same
physical interface. The diagnostic software is developed using C++ language utilizing Qt©
cross platform toolkit. The connection to physical layer, data lin References - Dzhelekarski, P., Alexiev, D.,, 2005, ELECTRONICS’05: Initializing communication to vehicle OBDII system, Sofia, 2005, <Sofia>,
- Dzhelekarski, P.,Zerbe, V., Alexiev, D.,, 2004, Spring Seminar on Electronics Technology : FPGA implementation of bit timing logic of CAN controller, Sofia, 2004, <Sofia>,
- Oliver, J.,, 1997, Implementing the J1850 protocol, USA, Intel Corporation
- ISO, 1994, Road vehicles – Diagnostic systems – Part 2: CARB requirements for interchange of digital information, , <ISO 9141-2>
- ISO, 1999, Road vehicles – Diagnostic systems – Keyword Protocol 2000 – Part 2: Data link layer, , <ISO 14230-2>
- ISO, 1999, KWP 2000 – Part 3: Application Layer, , <ISO 14230-3>
- ISO, 2000, KWP 2000 – Part 4: Requirements for emission-related systems, , <ISO 14230-4>
- ISO, 2004, Road vehicles – Communication between vehicle and external equipment for emissions-related diagnostics – Part 4: External Test Equipment, , <ISO/DIS 15031-4>
- ISO, 2004, Road vehicles – Communication between vehicle and external equipment for emissions-related diagnostics – Part 5: Emission-related diagnostic services, , <ISO/DIS 15031-5>
Issue
| ELECTRONICS’ 2005,21 – 23 September, vol. 3, pp. 53-59, 2005, Bulgaria, |
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