Research of fault-tolerant redundancy and fault diagnosis technology based on can

To enhance the reliability of the CAN bus, the relevant research in the CAN design and the Fault Diagnosis of the CAN-bus is carried out. The advantages of the analytical redundancy fault-tolerant control concepts and the hardware redundancy fault-tolerant control concept are effectively integrated and the control area network based on fault-tolerant redundancy technology is designed according to these ideas; an experiment setup is built to perform the Hard Fault detection of three CAN nodes. The experiment results verified that the resistance detection method can detect and locate the fault point of the CAN-bus permanent failure.