Electrical Driven Compressor – Vibration Correlation for PCB & Electronic Components (original) (raw)

SAE Technical Paper Series

Abstract

Electrical driven compressors (EDC) are mounted on the automotive driveline to compress refrigerants in an automotive air conditioning system. The electrical power delivered by the battery is converted to mechanical power by an inverter and an electrical motor. The inverter is composed of a printed circuit board (PCB) with assembled electronic components. For the inverter part of the EDC, the vibration failures are predominant followed by thermal failures on electronic components. Hence robust methodology is necessary to improve the strength of the design under vibration environment through Finite Element Analysis. In this paper, a multi-fidelity methodology to validate automotive electronic components under harmonic loading through Finite Element Analysis is presented. This multi-fidelity methodology allows the risk of failure to be assessed at the earliest stages of product design, when changes are easy to make and have a low financial impact. The main focus is on the last stage o...

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