# Is CV Event trigger event necessary for drive cycle data?

**URL:** <https://pybamm.discourse.group/t/is-cv-event-trigger-event-necessary-for-drive-cycle-data/472>\
**Category:** PyBaMM Q&A\
**Created:** [1 July 2026 13:47 UTC](https://pybamm.discourse.group/t/is-cv-event-trigger-event-necessary-for-drive-cycle-data/472 "2026-07-01T13:47:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ShubhamB](https://avatars.discourse-cdn.com/v4/letter/s/e9a140/32.png) [@ShubhamB](https://pybamm.discourse.group/u/ShubhamB)\
**Post date:** [1 July 2026 13:47 UTC](https://pybamm.discourse.group/t/is-cv-event-trigger-event-necessary-for-drive-cycle-data/472/1 "2026-07-01T13:47:03Z")

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Suppose i have done parameter optimization for LFP A123M1B cell using prada2013 set using global search optimsers PSO, DE. So my question is if a drive cycle experimental data has CV stages in middle do I need to trigger CV event using “Hold at …” since it is a boundary condition or my parameter sweep should be so good that my model is kinda perfect and it should hold voltage constant for CV stages in drive cycle data? ( Fyi voltage is overshooting at CV stages for my data)