Mihna

Mihna Neerulpan

12+ years developing and integrating safety-critical automotive and aerospace systems, from requirements through HIL and vehicle/aircraft test, with recent focus on electric powertrain and energy storage for EV and eVTOL programs; engineering and program leader with hands-on depth across systems, modeling, simulation, software, integration, and test.

I enjoy developing at the intersection of physics, simulation, data, software, and real-world operation from first principles.

Get in Touch

Open to new roles and collaborations.

San Francisco Bay Area

Experience

2026 - Present
ActionFlux Labs Founder & Engineer

Building something new.

2023 - 2026
Supernal (Hyundai AAM) Sr. Algorithm Engineer - Energy Management System (Prev: Sr. System Engineer, Motor Control - EPU)

Drove eVTOL energy management integration for a technology demonstrator with a dynamic ESS architecture, and led modeling, simulation, and BMS planning for next-generation energy storage architecture.

Identified 8% of all aircraft integration anomalies, surfacing critical design and integration risks ahead of flight test.

2018 - 2022
AC Propulsion Inc. Technical Director (Prev: SW Manager & Sr. Embedded SWE)

Led a multidisciplinary team (scaling from 2 to 6 engineers) delivering motor controllers and electric drive systems for production and prototype automotive and aircraft programs.

Shipped PMSM and induction drives spanning 60-280 kW, with 400 V Si-IGBT and 800 V SiC-MOSFET two-level power stages.

Delivered production drive units to 170+ Designwerk/Volvo heavy-duty trucks and an Ampaire hybrid-electric aircraft demonstrator.

2017 - 2018
Magneti Marelli Embedded Software Engineer

Developed model-based, AUTOSAR-compliant embedded software for Harley-Davidson’s next-generation body control program - from requirement decomposition through RTOS bring-up, RTE design, and AUTOSAR stack release.

2014 - 2017
General Motors Sr. SW/Control System Engineer (Prev: Controller Integration Engineer) [Contract]

Developed production ASIL-D embedded software for GM Super Cruise across multiple vehicle programs, including the initial launch - spanning diagnostics, communication interfaces, controller integration, and HIL test automation.

Served on the ADAS Architecture, Communications, and Diagnostics Technical Review Board; recognized with a peer award and a leadership commendation for advancing software content ahead of a major program milestone.

Certifications

Functional Safety Professional TUV SUD 2023
Building Agentic AI Applications Maven 2025
Algorithms for Battery Management Systems University of Colorado Boulder 2025

Education

B.Tech in Electrical and Electronics Engineering Amrita University, India University of California, Davis (GSP)

Projects

Open data + schema

celljar

Public battery test data is scattered across many sources, each with its own format, units, and structure, so every project starts with custom wrangling before any data analysis/use.

celljar harmonizes published datasets (10 so far, spanning 8 cell models / 280 cells / ~184M time-series rows) into one canonical schema: metadata as JSON, time series as Parquet for fast queries and compact storage. Query across every dataset with simple SQL / pandas / Polars, or explore them in the included viewer. Free and hosted on HuggingFace.

GitHub HuggingFace
celljar viewer - interactive explorer for harmonized battery test data
Private project - demo on request

Battery Pack Thermal Imbalance

Cells in a pack do not cool equally. Coolant-path and packaging differences create cell-to-cell thermal resistance variation, so identical cells can run at different temperatures, age unevenly, and reach voltage limits at different times.

An electro-thermal Simscape study showing how unequal cooling paths alone can drive temperature spread, aging imbalance, and early voltage cutoff in a 3S2P Samsung INR21700-30T (NMC) pack, with cells held identical to isolate the cooling-path effect from cell-to-cell variation.

Highlights: ECM, Bernardi heat generation, fitted OCV / R0 / entropic-coefficient (dOCV/dT) lookup tables, asymmetric per-cell thermal resistance, CP / CP-CV charge-discharge control, coolant temperature sensitivity sweeps.

Request a demo
Battery pack thermal imbalance - Simscape electro-thermal model of a 3S2P pack with asymmetric per-cell cooling