CAN FD with dynamic multi-PDU-to-frame mapping
CAN FD with dynamic multi-PDU-to-frame mapping
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CAN FD 具有动态多 PDU 到帧的映射
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Informatik GmbH
中科院分区：
文献类型：
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作者：
Oliver Garnatz;Vector Informatik Peter Decker;Informatik GmbH
AUTOSAR 4.2.1版本引入了动态多PDU到帧映射（PDU: Protocol Data Unit）。这主要允许从现有架构轻松迁移到具有更高数据速率的CAN FD（例如，将多个经典CAN帧打包到一个CAN FD帧中）。但这种新功能也可以减少车辆型号范围内的通信变体。通过在整个模型范围内为每个数据元素/对象分配自己的唯一ID (PDU-ID)，通信将独立于框架体系结构和CAN ID。功能可以在不修改任何接收节点的情况下在车辆内移动。这种方法在各种车辆架构中具有很高的灵活性。但也有缺点。每个ECU的资源需求增加。工具也是一个问题。测试和分析需要新的功能。本文介绍了动态多pdu到帧映射技术及其优缺点。进一步显示了对网关的影响及其对SOME/IP的影响。分析和测试动态PDU概念的需求将完成论文。
The AUTOSAR release 4.2.1 introduced a Dynamic Multi-PDU-to-Frame Mapping (PDU: Protocol Data Unit). Primarily this allows an easy migration from existing architectures to CAN FD with a higher data-rate (e.g. packing multiple classic CAN-frames into one CAN FD frame). But this new functionality allows also a reduction of communication variants across the vehicle model ranges. By assigning each data-element/object an own unique ID (PDU-ID) across the full model range, the communication is getting independent from the frame architecture and CAN ID. Functionalities can be moved within the vehicle without modifying any receiving node. This approach opens a high flexibility in the variety of vehicle architectures. But there are also drawbacks. The resource demand for each ECU increases. Tools are also concerned. Testing and analyzing requires new functions. The paper introduces the Dynamic Multi-PDU-to-Frame Mapping with its benefits and its drawbacks. Further it shows the impact on gateways and its influence on SOME/IP. Requirements for analyzing and testing the dynamic PDU concept will finalize the paper.