SESSION 5 – Reliability of Electric Systems – HBK Technology Days 2022 Virtual Seminar Series
HBK Technology Days 2022 – Virtual Seminar Series
Session 5: Reliability of Electric Systems
Overview
The increasing electrification of transport systems presents many challenges to achieving the desired reliability of these electric vehicles and their electric power systems, to mitigate both a safety risk and warranty exposure. They require convergence and conversion between mechanical power and electrical power. Some failure modes and reliability models carry over from predominantly mechanical powered vehicles, whilst new failure modes are created, requiring identification and quantification through testing, simulation and validation.
These presentations show building a reliability validation plan for the automotive electric powertrain, statistical and reliability methods for determining electric vehicle system reliability, and why aviation needs more reliable and standardised electrical testing for the shift to more-electric aircraft.
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Building a Reliability Validation Plan for Electrified Powertrains
Andrew Brown, Jaguar Land Rover, Battery Validation Group Leader, Electric Powertrain
The transition from ICE to EV powertrains has been rapid and the array of configurations including Mild-Hybrid (MHEV), Plug-In Hybrid (PHEV) and fully Electric (BEV) creates a multitude of customer use-cases that need to be accounted for in the validation plan.
The relative cost of failure has more than doubled for the electrified powertrain, and the warranty period of high-cost systems (such as the battery) extends beyond the conventional 3 years, putting more emphasis on reliability improvements of the powertrain.
Why aviation needs more reliable and standardized electrical testing (TBD)
Cranfield University | Senior Lecturer in Intelligent Systems
To be confirmed.
Statistical and Reliability Aspects of Electric Vehicles
Dr. Andrew Halfpenny, Director of Technology – HBK nCode Products
The automotive industry is mobilizing at a rapid pace to meet the demands and challenges presented by the shift to more widely accepted battery-powered electric vehicles. The rapid pace of innovation can expose manufacturers to potentially expensive warranty claims. This presentation addresses techniques to quantify and minimize reliability exposure for structural EV battery systems. It covers the following topics:
Understanding the impact of mechanical shock, vibration, and thermal stresses, on the durability and reliability of EV batteries.
Obtaining statistically representative loading spectra, and deriving vibration test profiles.
Using a combination of physical vibration testing with CAE simulation to better understand component reliability and the impact of uncertainty on risk exposure.
Free ONLINE Seminar - 90 minutes