Crash safety of a power electronic unit of an electrified vehicle

Desiree Kofler; Alessio Sevarin; Wolfgang Sinz; Alexander Thaler; Christian Ellersdorfer

doi:10.1109/ITEC51675.2021.9490085

Crash safety of a power electronic unit of an electrified vehicle

Desiree Kofler, Alessio Sevarin, Wolfgang Sinz, Alexander Thaler, Christian Ellersdorfer

Vehicle Safety Institute (3330)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper

Abstract

A HAZOP analysis and FMEA revealed safety-critical components of the power electronic unit (PEU) and potential hazard processes in case of mechanical crash loads. The mechanical crash loads acting on the PEU were derived for a PEU positioned in a reference vehicle. On that basis, a matrix of mechanical tests representing critical quasi-static and dynamic load cases with the aim to observe the onset of failure modes of the PEU was developed.
The analysis of the PEU revealed the capacitor, electrical conductors and cooling plate as critical components with potentially hazardous behavior in case of failure. In the crush tests, the failure of the cooling plate and contact between electrical conductors were detected, but no hazardous behavior of the capacitor was observed. Moreover, suggestions are discussed on how to minimize the risks of hazards in case of failure.

Original language	English
Title of host publication	2021 IEEE Transportation Electrification Conference & Expo (ITEC)
Pages	633-639
Number of pages	7
DOIs	https://doi.org/10.1109/ITEC51675.2021.9490085
Publication status	Published - Aug 2021
Event	2021 IEEE Transportation Electrification Conference: ITEC 2021 - Virtuell, United States Duration: 21 Jun 2021 → 25 Jun 2021 https://itec-conf.com/

Conference

Conference	2021 IEEE Transportation Electrification Conference
Abbreviated title	ITEC 2021
Country/Territory	United States
City	Virtuell
Period	21/06/21 → 25/06/21
Internet address	https://itec-conf.com/

Fields of Expertise

Mobility & Production

Access to Document

10.1109/ITEC51675.2021.9490085

Cite this

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title = "Crash safety of a power electronic unit of an electrified vehicle",

abstract = "A HAZOP analysis and FMEA revealed safety-critical components of the power electronic unit (PEU) and potential hazard processes in case of mechanical crash loads. The mechanical crash loads acting on the PEU were derived for a PEU positioned in a reference vehicle. On that basis, a matrix of mechanical tests representing critical quasi-static and dynamic load cases with the aim to observe the onset of failure modes of the PEU was developed.The analysis of the PEU revealed the capacitor, electrical conductors and cooling plate as critical components with potentially hazardous behavior in case of failure. In the crush tests, the failure of the cooling plate and contact between electrical conductors were detected, but no hazardous behavior of the capacitor was observed. Moreover, suggestions are discussed on how to minimize the risks of hazards in case of failure.",

author = "Desiree Kofler and Alessio Sevarin and Wolfgang Sinz and Alexander Thaler and Christian Ellersdorfer",

year = "2021",

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language = "English",

pages = "633--639",

booktitle = "2021 IEEE Transportation Electrification Conference & Expo (ITEC)",

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AU - Kofler, Desiree

AU - Sevarin, Alessio

AU - Sinz, Wolfgang

AU - Thaler, Alexander

AU - Ellersdorfer, Christian

PY - 2021/8

Y1 - 2021/8

N2 - A HAZOP analysis and FMEA revealed safety-critical components of the power electronic unit (PEU) and potential hazard processes in case of mechanical crash loads. The mechanical crash loads acting on the PEU were derived for a PEU positioned in a reference vehicle. On that basis, a matrix of mechanical tests representing critical quasi-static and dynamic load cases with the aim to observe the onset of failure modes of the PEU was developed.The analysis of the PEU revealed the capacitor, electrical conductors and cooling plate as critical components with potentially hazardous behavior in case of failure. In the crush tests, the failure of the cooling plate and contact between electrical conductors were detected, but no hazardous behavior of the capacitor was observed. Moreover, suggestions are discussed on how to minimize the risks of hazards in case of failure.

AB - A HAZOP analysis and FMEA revealed safety-critical components of the power electronic unit (PEU) and potential hazard processes in case of mechanical crash loads. The mechanical crash loads acting on the PEU were derived for a PEU positioned in a reference vehicle. On that basis, a matrix of mechanical tests representing critical quasi-static and dynamic load cases with the aim to observe the onset of failure modes of the PEU was developed.The analysis of the PEU revealed the capacitor, electrical conductors and cooling plate as critical components with potentially hazardous behavior in case of failure. In the crush tests, the failure of the cooling plate and contact between electrical conductors were detected, but no hazardous behavior of the capacitor was observed. Moreover, suggestions are discussed on how to minimize the risks of hazards in case of failure.

U2 - 10.1109/ITEC51675.2021.9490085

DO - 10.1109/ITEC51675.2021.9490085

M3 - Conference paper

SP - 633

EP - 639

BT - 2021 IEEE Transportation Electrification Conference & Expo (ITEC)

T2 - 2021 IEEE Transportation Electrification Conference

Y2 - 21 June 2021 through 25 June 2021

ER -