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CAN总线技术,新里程碑
半导体行业观察· 2026-02-13 01:09
Core Insights - Bosch demonstrates its leadership in the development and implementation of Controller Area Network (CAN) technology with the introduction of CAN XL, which bridges the performance gap between CAN FD and 100Base-T1 Ethernet [2][5] - The evolution of CAN technology has seen significant advancements, including the introduction of CAN FD in 2016 and the new SIC transceiver achieving data rates of up to 8 Mbit/s [3][5] - CAN XL offers a cost-effective solution with a data rate of up to 20 Mbit/s, while maintaining the classic advantages of CAN, such as robustness and arbitration [5][8] Development History - The development of CAN technology has two main paths: transceiver performance and the protocol itself, starting with the first CAN CC devices in 1990 and evolving to the latest CAN XL [3][5] - CAN XL represents a milestone in CAN technology development, designed to complement existing technologies while enhancing safety, reliability, and service-oriented architecture (SOA) support [5][7] Technical Features - CAN XL includes both physical hardware and communication protocol, with the latest NT156 transceiver supporting data rates of up to 20 Mbit/s [7] - The protocol ensures reliable data exchange among connected devices and has been standardized in ISO 11898-1:2024 [7] - It supports a payload capacity of up to 2,048 bytes, accommodating various applications and enabling seamless integration of service-oriented communication [9] Advantages of CAN XL - CAN XL provides a single bus for three types of traffic (CAN FD, CAN XL, and Ethernet), balancing speed, cost, and network complexity [8] - It allows for coexistence of CAN FD and CAN XL nodes on the same network, enhancing scalability and adaptability for different applications [9][12] - Compared to Ethernet solutions, CAN XL is a more economical option, especially in applications that do not require the complexity of Ethernet [12][10] Future Outlook - Bosch is committed to advancing vehicle communication standards and collaborating with industry partners to develop security protocols essential for secure software-defined vehicle (SDV) architectures [14][16] - The ongoing investment in performance, interoperability, and reliability positions Bosch as a trusted partner in the future of vehicle architecture [16]