Reliability-based parameter design for FlexRay network in vehicles
FlexRay has been extensively applied to safety-critical systems, such as powertrain, chassis, and X-by-wire system in vehicles. Its transmission reliability considerably influences vehicle safety. In this study, frame coding and media access control in the FlexRay protocol are analyzed, and calculat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2019-04-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814019839905 |
| _version_ | 1818279793672585216 |
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| author | Yuefei Wang Hongjun Liu Bin Huang Nan Zhang Yuan Wu |
| author_facet | Yuefei Wang Hongjun Liu Bin Huang Nan Zhang Yuan Wu |
| author_sort | Yuefei Wang |
| collection | DOAJ |
| description | FlexRay has been extensively applied to safety-critical systems, such as powertrain, chassis, and X-by-wire system in vehicles. Its transmission reliability considerably influences vehicle safety. In this study, frame coding and media access control in the FlexRay protocol are analyzed, and calculation equations are deduced for the length of time slot and coded frame of FlexRay. Redundant transmission of FlexRay static frame is introduced to solve the transmission failure caused by the bit error in the physical layer, and the transmission reliability of a static segment is defined for the mechanism. Considering the demands on transmission reliability and network schedulability, the configuration of FlexRay parameters, including communication cycle, time slot allocation, and segment length, is formulated as a generalized optimization problem with constraints on predefined transmission reliability and response time of messages. A Reliability-Based Parameter Optimization algorithm and its sub-algorithms, Response Time of Dynamic Segment and Slot Allocation for the Predefined Reliability, are presented to approximately solve the optimization model. Experiment results validate the proposed method, which can efficiently improve the transmission reliability and guarantee the real-time performance of the FlexRay network. |
| first_indexed | 2024-12-12T23:38:59Z |
| format | Article |
| id | doaj.art-33db63e389604bf1b21999cfbe339f28 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-12T23:38:59Z |
| publishDate | 2019-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-33db63e389604bf1b21999cfbe339f282022-12-22T00:07:18ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402019-04-011110.1177/1687814019839905Reliability-based parameter design for FlexRay network in vehiclesYuefei Wang0Hongjun Liu1Bin Huang2Nan Zhang3Yuan Wu4Engineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, ChinaSchool of Mechanical Engineering, Hefei University of Technology, Hefei, ChinaEngineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, ChinaSchool of Mechanical Engineering, Hefei University of Technology, Hefei, ChinaSchool of Mechanical Engineering, Hefei University of Technology, Hefei, ChinaFlexRay has been extensively applied to safety-critical systems, such as powertrain, chassis, and X-by-wire system in vehicles. Its transmission reliability considerably influences vehicle safety. In this study, frame coding and media access control in the FlexRay protocol are analyzed, and calculation equations are deduced for the length of time slot and coded frame of FlexRay. Redundant transmission of FlexRay static frame is introduced to solve the transmission failure caused by the bit error in the physical layer, and the transmission reliability of a static segment is defined for the mechanism. Considering the demands on transmission reliability and network schedulability, the configuration of FlexRay parameters, including communication cycle, time slot allocation, and segment length, is formulated as a generalized optimization problem with constraints on predefined transmission reliability and response time of messages. A Reliability-Based Parameter Optimization algorithm and its sub-algorithms, Response Time of Dynamic Segment and Slot Allocation for the Predefined Reliability, are presented to approximately solve the optimization model. Experiment results validate the proposed method, which can efficiently improve the transmission reliability and guarantee the real-time performance of the FlexRay network.https://doi.org/10.1177/1687814019839905 |
| spellingShingle | Yuefei Wang Hongjun Liu Bin Huang Nan Zhang Yuan Wu Reliability-based parameter design for FlexRay network in vehicles Advances in Mechanical Engineering |
| title | Reliability-based parameter design for FlexRay network in vehicles |
| title_full | Reliability-based parameter design for FlexRay network in vehicles |
| title_fullStr | Reliability-based parameter design for FlexRay network in vehicles |
| title_full_unstemmed | Reliability-based parameter design for FlexRay network in vehicles |
| title_short | Reliability-based parameter design for FlexRay network in vehicles |
| title_sort | reliability based parameter design for flexray network in vehicles |
| url | https://doi.org/10.1177/1687814019839905 |
| work_keys_str_mv | AT yuefeiwang reliabilitybasedparameterdesignforflexraynetworkinvehicles AT hongjunliu reliabilitybasedparameterdesignforflexraynetworkinvehicles AT binhuang reliabilitybasedparameterdesignforflexraynetworkinvehicles AT nanzhang reliabilitybasedparameterdesignforflexraynetworkinvehicles AT yuanwu reliabilitybasedparameterdesignforflexraynetworkinvehicles |