In-vehicle Ethernet Recorder Solution?
Dec 20, 2022 View: 368
With the increasing number of in-vehicle ECUs and data volume, along with the birth of ADAS, autonomous driving, and other automotive technology development needs, existing vehicle bus networks, such as CAN(FD), Flex Ray, etc., are far from being able to meet the growing demand for transmission bandwidth. We need new vehicle networks with higher speeds, lower cost, and easier connection with other electronic systems in the future. In summary, in-vehicle Ethernet is undoubtedly the best solution.
1. A new phase of in-vehicle networking
Broadcom's breakthrough BroadR-Reach technology uses a single pair of unshielded twisted pair cables and standard Ethernet PHY components to achieve 100Mbps data transmission. This optimized processing enables in-vehicle Ethernet to meet in-vehicle EMC requirements, supporting a transmission distance of 15m when using unshielded twisted pair cable (40m for shielded twisted pair cable). The electronic devices in the vehicle can be connected to the vehicle gateway controller instead of the traditional point-to-point wiring, reducing the cost of in-vehicle connectivity by up to 80% and the weight of in-vehicle wiring by up to 30%. Subsequent revisions to the Institute of Electrical and Electronics Engineers (IEEE) 802.3 standard for automotive applications include the IEEE 802.3bw (100base-T1, 100Mbps, copper) and IEEE 802.3bp (1000base-T1, 1Gbps, copper) protocol standards.
2. Logger helps in-vehicle Ethernet testing
In-vehicle Ethernet has high network reliability, synchronization, and security requirements due to its special usage scenario and high speed, so high precision and all-around testing experiments of in-vehicle Ethernet are essential.
IPETRonIK's logger products from Germany have served the vehicle industry for many years. Many automotive companies have highly evaluated them for their reliable hardware quality, rich protocol compatibility, and high accuracy of measurement records. Nowadays, IPETRonIK has also launched various high-speed Ethernet logger products, which continue the advantages of the past. In contrast, the logger supports high-speed Ethernet protocol standards, faster data writing, and retrieval speed, helping the smooth implementation of in-vehicle Ethernet testing.
3. Technica Engineering solutions
Technica Engineering's 100/1000M base-T1 tool for automotive product development and electronic control unit ECU testing creates a 100/1000M base-T1-based connection between in-vehicle Ethernet and data logger. The device does not store or modify any data packets. The process is a pure physical layer conversion, has low latency low, and supports AVB acquisition.
4. The protocol conversion from 100/1000 base-T1 to 100/1000 base-TX enables the logger to record data from the vehicle Ethernet.
