Analysis for UDS and KWP 2000 communication protocols with uds based diagnosis design on AUTOSAR standards

This thesis shows detailed and reflective analysis about unified diagnostic services and keyword 2000. Also not only normal analysis and also check their performances based on AUTOSAR. Thesis firstly starts with introducing critical information's about communication theory, indispensable automotive regulations, aim of the diagnostic systems, controller area network and its features. After, thesis mentions about diagnostic communication details such as diagnostic trouble codes and its format, prioritization of controller area network messages. Also, their robustness, response time periods, way of error memory management considered for these two common diagnostic protocol. Additionally, AUTOSAR introduced detailly with describing its each layer and mentioning about consortium promoter companies and mentioned about their necessity by showing how important to develop software independent from by hardware which means electronic control unit. Analysis continuous with comparing unified diagnostic services and keyword 2000 protocols. This comparison not only emphasize of one of the protocols but also test them with identical conditions. This test includes, their response time period for each transmit and received controller area network messages and with using same electronic control unit a virtual diagnostic trouble code created and measured that how these two common protocol managed error memory. Results of this thesis shows unified diagnostic services and keyword 2000 protocols strong, robust and weaknesses, and mentions how to build unified diagnostic services based on AUTOSAR with remarking critical points. All in all, this thesis results supports researchers, engineers and who will build automotive diagnostic architecture and helps to make conscious decisions.