New method of CAN nodes health monitoring

Abstract

Controller area network (CAN) is deployed in wide scale of applications at present. Many of these applications are sensitive to faults in terms of quality of communication. The article describes a novel online diagnostic method which aim is to recognize progressively degrading nodes on the data bus. The method uses existing network equipment and requires no additional/specialized network nodes. Standard components for CAN bus faults management like node error counters are used instead.