Multi-site bus combination method and device of electrical vehicle
A field bus, fusion method technology, applied in vehicle components, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as unpredictable message transmission, uneven bus conformance, and low priority messages are easily blocked. Guarantee communication requirements and communication speed, simplify operation steps, and ensure the effect of reliability
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] In this embodiment, the vehicle control system MCU chip is S3C2440, the Ethernet bus controller chip is RTL8019, the CAN bus controller chip is MCP2510, and the central controller (gateway) chip is SST89E516RD2.
[0028] The multi-layer distributed bus system is composed of Ethernet bus, CAN bus and LIN bus. The Ethernet bus communication layer connects portable entertainment devices, rear seat entertainment systems, and DVDs, and realizes information interaction between different buses through the vehicle control system and CAN bus; the CAN bus layer connects battery management systems and motor control systems with relatively low communication rates. System, ABS system, and realize information interaction between different buses through CAN-LIN gateway and LIN bus; LIN bus layer connects rearview mirror, operation panel, door lock, and car wind...
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