The invention discloses a
system for carrying out finished automobile offline detection based on a finished automobile communication protocol and a working method thereof, the
system comprises an EOL
diagnostic instrument and an EOL upper computer, and the EOL
diagnostic instrument obtains finished automobile CAN data through a diagnosis interface on a finished automobile and sends the finished automobile CAN data to the EOL upper computer in a
wireless mode. And the EOL upper computer completes complete vehicle VIN writing and
verification, controller
software number comparison and flashing, and complete vehicle part parameter and state
verification according to various parameter index requirements of a complete vehicle configuration file and a working process of off-line electric detection, automatically completes complete vehicle off-line detection and archives
test data. According to the invention, through automatic electric test, the
workload of related testers in the off-line process of the whole vehicle can be effectively reduced; the production efficiency is improved, and the
controllability of the off-line electric detection process of the whole vehicle is ensured. Meanwhile, it can be effectively guaranteed that products are exported abroad, the whole vehicle
assembly quality can be effectively detected, and
technical training and time investment of production enterprises on foreign offline detection personnel are reduced.