Development of a real-time monitoring system for ECU based on CAN bus

To overcome the shortcomings of compatibility with different CAN (Controller Area Network) communication devices and applicability in different fields for the current real-time monitoring systems for ECU (Electronic Control Unit) based on CAN bus, a novel architecture for the monitoring system was put forward, and the corresponding monitoring software has been developed, which consists of a communication module, a configuration database for the protocol of application layer and its management tool, a message parsing module, and an application module. The proposed architecture and developed monitoring software were verified through real-time communication tests on the ECU of automatic transmission of an experimental vehicle.