Implementation of AUTOSAR I/O driver modules for a SSPS system

Park, Gwangmin; Kum, Daehyun; Jin, Sung‐Ho; Jung, Wooyoung

doi:10.1109/iccas.2008.4694370

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B Checksum1

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2023

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“…To detect data processing error, especially in a safety critical processor such as the BMS in an Electric vehicle, we introduce checksum data in the transmitted MISO and MOSI signals [12], [13].…”

Section: B Checksummentioning

confidence: 99%

Resilence of Autosar-Complaint Spi Driver Communication as Applied to Automotive Embedded Systems

Venkitaraman

Kosuru

2023

EJECE

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Automotive embedded systems often work on multi- OS which use a mix of onboard communication protocols such as SPI, I2C, LIN, CAN or FlexRay. Considering high fidelity, data transfer rate from 100 kbps up to 5 Mbps and ability to support full-duplex communication we have selected SPI communication protocol for the analysis. In this letter, we propose resilient strategy for SPI driver to communicate cell voltage, current and temperature, typically used in active cell balancing. The SPI driver is constrained by the AUTOSAR standard for purpose of formalization. The inter-core communication between the battery management controller and a vehicle controller is simulated using MATLAB. We inject faults on an AUTOSAR-compliant SPI driver (Master<>Slave) data protocol transfer and study its ability to self-detect and react to faults. Depending on the failure mode achieved by the vehicle due to communication faults or inability to detect the faults, we propose a superimposing Cyclic redundancy check (CRC) strategy.

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Section: B Checksummentioning

confidence: 99%