汽车实用技术
汽車實用技術
기차실용기술
PRACTICAL TECHNOLOGY OF AUTOMOBILE
2014年
11期
29-32
,共4页
李攀%蔺春明%李霞%成金峰%林国干
李攀%藺春明%李霞%成金峰%林國榦
리반%린춘명%리하%성금봉%림국간
CAN 总线%BUSOFF%干扰机制%测试方案
CAN 總線%BUSOFF%榦擾機製%測試方案
CAN 총선%BUSOFF%간우궤제%측시방안
CAN BUS%BUSOFF%Interference Mechanism%Testing Scheme
整车CAN总线测试工作是整个平台架构的重要部分。本文基于美国Vector公司的CANOE和CANSTRESS测试工具实现了一种对整车CAN网络BUSOFF进行系统级的测试方案。首先测试每一节点的BUSOFF恢复机制是否符合预定义的规范。其次使用最高优先级报文或网络管理报文的干扰机制来测试在CAN网络BUSOFF时各个节点的互不干扰性。本文重点阐述了此干扰机制的原理,从理论上说明此干扰机制的正确性,通过编写测试用例验证了此干扰机制以及整体测试方案的准确性、高效性与有效性,并且完善了整车CAN网络的测试方案与测试规范。
整車CAN總線測試工作是整箇平檯架構的重要部分。本文基于美國Vector公司的CANOE和CANSTRESS測試工具實現瞭一種對整車CAN網絡BUSOFF進行繫統級的測試方案。首先測試每一節點的BUSOFF恢複機製是否符閤預定義的規範。其次使用最高優先級報文或網絡管理報文的榦擾機製來測試在CAN網絡BUSOFF時各箇節點的互不榦擾性。本文重點闡述瞭此榦擾機製的原理,從理論上說明此榦擾機製的正確性,通過編寫測試用例驗證瞭此榦擾機製以及整體測試方案的準確性、高效性與有效性,併且完善瞭整車CAN網絡的測試方案與測試規範。
정차CAN총선측시공작시정개평태가구적중요부분。본문기우미국Vector공사적CANOE화CANSTRESS측시공구실현료일충대정차CAN망락BUSOFF진행계통급적측시방안。수선측시매일절점적BUSOFF회복궤제시부부합예정의적규범。기차사용최고우선급보문혹망락관리보문적간우궤제래측시재CAN망락BUSOFF시각개절점적호불간우성。본문중점천술료차간우궤제적원리,종이론상설명차간우궤제적정학성,통과편사측시용례험증료차간우궤제이급정체측시방안적준학성、고효성여유효성,병차완선료정차CAN망락적측시방안여측시규범。
Test work of vehicle CAN bus plays an important role in the overall platform design. Based on the testing tools CANOE and CANSTRESS of Vector Company, the paper achieves a system-level BUSOFF testing scheme of vehicle CAN. First, verify that BUSOFF recovery mechanism of each node meets predefined Standard. Second, the scheme uses interference mechanism of the highest priority packets or network management packet to test each node in the network. The paper focuses on the principle of this interference mechanism, and theoretically interferes wi th the accuracy of this mechanism. By writing test cases, the paper verifies the accuracy, efficiency and effectiveness of this interference mechanism and improves the testing scheme and testing specifications of the vehicle CAN networks.