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With the rapid development of the electric vehicle (EV) industry, theBattery Management System (BMS, Battery Management System) As a core component, its communication architecture is facing new challenges of higher bandwidth, lower cost and simpler cabling.
Traditional BMS systems rely heavily on CAN / CAN FD Bus However, as the number of Sensors within the battery module continues to grow and the amount of data is increasing dramatically, it is important to keep the data exchanged.Bandwidth bottleneck in CAN bus Gradually, it becomes apparent.
In recent years, according to IEEE 802.3cg Standard definition 10BASE-T1S Single-Pair Ethernet Technology With features such as single-pair cables, multipoint topology and 10 Mbps transmission rate, it brings a new communication solution to BMS systems, realizing the following Higher bandwidth, lighter cabling and better interference immunityThe
The BMS system needs to monitor key parameters such as voltage, current and temperature of the battery packs in real time, and to realize control functions such as battery equalization, thermal management and safety protection. This imposes strict requirements on the communication system:
10BASE-T1S It is an innovative solution that extends Ethernet technology to the Edge Node, which is particularly suitable for in-vehicle BMS, sensor networks and low-speed control domains. The core technology features are as follows:
Hongke 10BASE-T1S Media Gateway It is a support CAN / CAN FD to 10BASE-T1S Bidirectional Conversion The professional-grade gateway equipment provides a flexible and efficient bridge solution for BMS communication architecture upgrades.
The device is integrated:
passable Embedded Web Server Configuration for bridging 10BASE-T1S network and CAN / CAN FD BusIt can also be flexibly switched to Ethernet bridge or adapter mode.
Take a typical new energy vehicle as an example: the battery pack internally uses a 10BASE-T1S network to connect to multiple battery modules (to monitor voltage, temperature, etc.), while the external charging equipment and vehicle controller still use the 10BASE-T1S network. CAN / CAN FD Communication ProtocolThis is the first time I have done so. At this time.Hongke 10BASE-T1S Media Gateway It can be used as a bridge to realize a seamless transition between the two protocols.
① Hardware connection
Gateway Configuration
③ Data Processing Flow
In the BMS communication field.CAN / CAN FD and 10BASE-T1S Each has its own advantages. The former is mature, stable and low-cost for low-frequency transmission applications, while the latter has higher bandwidth, simpler cabling and greater scalability, making it suitable for new-generation high-capacity battery systems.
Hongke 10BASE-T1S Media Gateway As a key bridge solution, it perfectly solves the interoperability problem between different communication technologies, enabling BMS design engineers to realize smooth transition and performance upgrades while preserving the existing architecture.
Through rational network topology and precise parameter configuration, the BMS communication architecture based on the 10BASE-T1S gateway of HONGKE can fully meet the requirements of modern electric vehicles for high-efficiency and high-reliability battery management, providing strong technical support for vehicle performance improvement and cost optimization.
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