CAN Communication Detection System Design for Engineering Vehicle Electronic Control Unit

Abstract

In terms of engineering vehicle faults, CAN communication faults account for a large proportion. In order to detect the CAN communication faults of electronic control units (ECUs) for diesel vehicles, this paper designs a CAN communication detection system for engineering vehicle ECUs, and a fault detection algorithm is proposed for diesel vehicle ECU based on CAN. This system can analyze and diagnose the physical link faults of CAN based on "handshake" theory for the engineering vehicle ECUs. The fault is determined by the "handshake" theory between the host computer and the ECU. In addition, the paper also designs the fault detection system based on LabVIEW. Experimental results show that this method can detect the type of CAN fault in given simulation environment.