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Body Electronics Area Network (BEAN)
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 24, 1997 by SAE International in United States
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This paper describes the multiplex communication protocol, BEAN (Body Electronics Area Network), developed for body control system on passenger cars which in recent years has increased the scope of multiplex communication. BEAN is based on a protocol developed in 1992 (SAE920231) but expands upon the performance in areas, such as the suitability of the ID system for increase of ECUs, the variable data length enabling the transmission of diagnostic data, and the transmission rate, while keeping the cost and radiation noise level low. The software size of BEAN is compact enough to be implemented by general purpose 8bit MCUs which have recently seen improvements in performance. The BEAN communication devices are available corresponding to the scale of the application and configuration of the ECU taking into account the software capability. This protocol was evaluated using simulation with the body control system on luxury passenger cars.
CitationHonda, H., Uehara, S., Sakai, K., Akatsuka, T. et al., "Body Electronics Area Network (BEAN)," SAE Technical Paper 970297, 1997, https://doi.org/10.4271/970297.
- Nakamura Seiji, Isobe Toshiaki, Yuuji, Hirabayasi, “The High-Speed In-Vehicle Network of Integrated Control System for Vehicle Dynamics”, SAE Paper 910463
- Isobe Toshiaki, Honda Hiroshi, Uehara Shigeru, Akiyama Susumu, “A Low-Speed In-Vehicle Network for Body Electronics”, SAE Paper 920231