Methods for Switching Multiple Speeds on a Single Link

Existing in-vehicle networks have various network systems such as LIN, CAN, FlexRay, and MOST. When new functions are added here, wires and ECUs are increased. Due to the requirements of these changing systems, the cost and complexity of communication efficiency of automotive networks is also increasing. Therefore, Ethernet is an alternative to integrate these complex in-vehicle network systems into one [1]. If the existing Ethernet is applied to the vehicle, various problems may occur. Therefore, the IEEE is standardizing the Ethernet optimized for vehicles. In this paper, we propose a new data transmission method of IEEE 802.3ch which is actively being standardized.