Performance Enhancement of CAN/Ethernet Automotive Gateway with a CAN Data Reduction Algorithm

Oh, Sung Bhin; Soo, Young; Lee, Min Jeong; Kim, Jin Ho; Jeon, Jae Wook

doi:10.3390/electronics12132777

Cited by 2 publications

(2 citation statements)

References 31 publications

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“…Data compression techniques for CAN have been developed to reduce the increased bus load caused by the growing number of ECUs. As an application example, Oh et al propose a CAN/Ethernet gateway system for seamless communication with CAN data compression techniques [23].…”

Section: Introductionmentioning

confidence: 99%

Single-Frame-Based Data Compression for CAN Security

Jin,

Seo,

Kim

et al. 2024

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To authenticate a controller area network (CAN) data frame, a message authentication code (MAC) must be sent along with the CAN frame, but there is no space reserved for the MAC in the CAN frame. Recently, difference-based compression (DBC) algorithms have been used to create a space inside the frame. DBC has the advantage of being very efficient, but its drawback is that, if an error occurs in one frame, the effects of that error propagate to subsequent frames. In this paper, a CAN data compression algorithm is proposed that compresses the current frame without relying on previous frames. Therefore, an error generated in one frame cannot be propagated to subsequent frames. In addition, a CAN signal grouping technique is proposed based on entropy analysis. To efficiently authenticate CAN frames, the length of the compressed data must be 4 bytes or less (4BL). Simulation shows that the 4BL-compression ratio of a Kia Sorento vehicle is 99.36% in the DBC method, but 100% in the proposed method. In an LS Mtron tractor, the 4BL-compression ratio is 98.58% in the DBC method, but 100% in the proposed method. In addition, the execution time of the proposed compression algorithm is only 27.39% of that of the DBC algorithm. The results show that the proposed algorithm has better compression characteristics for CAN security than the DBC algorithms.

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Section: Introductionmentioning

confidence: 99%

Single-Frame-Based Data Compression for CAN Security

Jin,

Seo,

Kim

et al. 2024

Information

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“…When data is transmitted simultaneously from two or more nodes, a collision occurs, and the network will become unavailable. In the well-known models of circuit-switched networks with fixed routing [18,19], an incoming request requires several channels to be serviced simultaneously in each line included in its route. In this case, if at least one line of the route does not have the required number of free channels, then the incoming request is rejected.…”

Section: Introductionmentioning

confidence: 99%

Influence of Time Delays on Network-Controlled Diesel Generator Performance

Al-Suod

2023

JESA

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In the paper the influence of Ethernet network dynamics on the quality of diesel-generator control is considered. The control quality indicators depend on time delays in the transmission of data packets over the Ethernet network. The optimization task of minimizing such time delays to improve the control quality was resolved. The Lagrange's method of undetermined multipliers and Bellman optimality rule were used for the analytical solution of the problem of minimizing time delays. A Matlab-model was developed for the research of the impact of time delays on the diesel-generator control quality, in which the Ethernet network is used as a data transmission channel between control objects and regulators. The scientific novelty of the results is in the improvement of the analytical method for analysing the characteristics of the automated control systems information processing network to study the influence of network dynamics on the quality of control of diesel-generators and determining the intensity of transmission of information and control packets, as well as using the proposed optimal conflict resolution rule, using which the transmission time delays data are minimal. This reduces the number of conflicts between the processes claiming the resources by almost 2 times and increases the quality of control.

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Performance Enhancement of CAN/Ethernet Automotive Gateway with a CAN Data Reduction Algorithm

Cited by 2 publications

References 31 publications

Single-Frame-Based Data Compression for CAN Security

Single-Frame-Based Data Compression for CAN Security

Influence of Time Delays on Network-Controlled Diesel Generator Performance

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