A method of improving the reliability of the gateway system by using OSEK/VDX

The gateway system is an essential component to communicate network-to-network with different protocols inside a distributed system. The reliability of the automotive gateway system is very important because it is a safety-critical system. Therefore, we propose a method of improving the reliability of the gateway system by using OSEK/VDX. We consider two factors for improving the reliability of the gateway. First, a high priority message must be processed first. Second, the gateway should not transmit messages to erroneous nodes that cannot receive messages by checking whether destination node is accessible or not. In this paper, we use OSEK/VDX operating system (OS) and implement network management(NM) based on OSEK/VDX NM in order to improve the reliability of the gateway system. We implement a gateway embedded system between CAN and FlexRay and apply proposed method to this gateway embedded system for experiment.