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Research demonstrates plunger detection in automotive systems, indicating advancements in functional safety and quality management.
The research presents a design for a power supply system specialised in supplying a solenoid electromechanical system, which is a crucial component in automotive applications, including electric vehicles. The implementation of plunger position monitoring, a key feature according to functional safety standards, is organised with a microprocessor system to satisfy the Functional Safety (FS) requirements. The proposed system’s topology aims to achieve Quality Management (QM) for the monitored electromechanical system at ASIL B or ASIL D (Automotive Safety Integrity Level), potentially advancing the automotive industry. The developed monitoring system incorporates two independent plunger detection mechanisms based on current measurement, calculation, and plunger estimation. The suggested power supply is based on a modified Forward converter with an adjusted structure and design methodology tailored to the solenoid characteristics. The obtained results are presented analytically and supported by experimental verification, paving the way for potential advancements in the automotive industry.
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Dimitrov et al. (2025) studied this question.
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