Redundancy method to solve CAN-FD bus line breakage problem

Abstract

Controller area network (CAN) was primarily employed as In-vehicle networks (IVNs). But this protocol has not been employed in industrial fieldbuses owing to its inadequate transmission speed and data rate. However, with the development of CANs with flexible data rates (CAN-FD) and CANopen, there has been increased interest regarding the application of CAN-based systems in industrial sites. Nevertheless, the CAN based protocol has the drawback of being vulnerable to unexpected wire breaking. Therefore, this paper proposes a redundancy method requiring 393ns delay time to address unexpected wire breakage in CAN-based systems.