Fault injection testing

Example

Use in Lemonergy

Record specimen, state, instrument, temperature and timing.

This is a reference concept. No executable Lemonergy block has been verified for this term.

Connected concepts

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Battery and cell emulator

A programmable power source that behaves like a battery or like each cell of a string, so a BMS or charger can be tested at any voltage, state of charge or fault without real cells. Cell emulators drive every AFE input separately.

Battery management system

The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.

Diagnostic trouble code

A coded fault a controller stores when a check fails — a cell overvoltage, a sensor out of range, an isolation fault — with a status and often a snapshot of conditions when it occurred. Reading and interpreting DTCs is the first step of any battery root-cause analysis.

Failure mode and effects analysis

A structured review that lists every way a component or process could fail, its effect, and how likely it is to happen and be detected, scoring each to prioritise fixes. Battery programmes run it on the cell, the pack design and the production process.

Functional safety

The discipline, standardised for vehicles in ISO 26262, of making sure electronic failures do not cause harm. Battery functions such as overvoltage protection are classified by risk into ASIL levels A to D, which set how redundant and verified their hardware and software must be.

Hardware-in-the-loop

Testing a real BMS controller against a real-time simulation of the battery, vehicle and charger, so faults that would be dangerous on real cells can be injected safely. It follows model-in-the-loop and software-in-the-loop, where the same logic is tested as a model or as code on a PC.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Battery Test Manual For Electric Vehicles, Revision 3

   Jon P. Christopherson · Idaho National Laboratory · 2015

   Topic background · Performance characterization, pulse resistance/power, life testing and reference performance tests; historical 2015 edition.