针对现代新能源车辆网络传输延迟低、数据内容实时性高等复杂挑战，使用瑞萨车规级微控制器RH850/F1K设计一款基于可变速率控制器局域网的车载网关控制器，具备6路总线通道，可兼容经典控制器局域网及可变速率控制器局域网，同时具备数据存储功能。总线收发器使用新一代CAN收发器TJA1462改善信号传输性能。软件设计基于嵌入式操作系统FreeRTOS实现多任务和结构化分层功能，并针对RH850/F1K微控制器的CAN外设特殊收发方式专门设计了驱动程序。使用USB转CAN工具对网关数据收发能力及存储功能进行测试，测试结果表明本文所设计的网关控制器在负载率接近总线使用极限时仍能够稳定工作，为车载网关控制器提供了一个高效可靠的设计方案。

To address the complex challenges of modern new energy vehicles, such as low network transmission latency and high real-time data requirements, a vehicle gateway controller based on CAN FD (Controller Area Network Flexible Data-rate) was designed using Renesas automotive-grade microcontroller RH850/F1K. It features six bus channels, supports both classical CAN and CAN FD, and includes data storage functionality. The bus transceiver employs the next-generation CAN transceiver TJA1462 to enhance signal transmission performance. The software design is based on the embedded operating system FreeRTOS, enabling multitasking and structured hierarchical functions. Additionally, a specialized driver was developed for the CAN peripheral's unique transceiver method on the RH850/F1K microcontroller. Using a USB-to-CAN tool, the gateway's data transmission and storage capabilities were tested. The results demonstrate that the designed gateway controller can operate stably even when the load rate approaches the bus usage limit, providing an efficient and reliable solution for vehicle gateway controllers.