Device under test

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

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

Battery cycler

The instrument that charges and discharges cells to a programmed schedule while logging voltage, current and temperature, with one independent channel per cell. Laboratory cyclers resolve microvolts; production formation cyclers handle thousands of cells at once.

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.

Sample phases

The automotive maturity stages of a cell or pack. A-samples are hand-built functional prototypes; B-samples have a near-final design built on prototype tooling; C-samples use series tooling and materials to validate the design; D-samples come off the series line at rate for production approval. Later design or process changes usually require requalification.

Cell testing

Measuring a cell’s capacity, resistance, efficiency, rate capability, life and safety under defined conditions. Because every result depends on the conditions, a result without its temperature, current and voltage limits is not a result.

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.