BMS: Battery Management System
Battery management built for bespoke packs
IonLab's in-house BMS monitors and protects the battery packs we design and integrate. Because we design the pack and the BMS together, cell monitoring, thermal management and vehicle communication are matched to each application instead of adapted from a generic unit.
What It Does
Monitors cell voltages and temperatures across the pack
Balances cells to protect capacity and life
Controls contactors and pre-charge
Estimates state of charge and reports it to the vehicle
Talks to the UVCU and on-board chargers over CAN
Communicates with sensors and insulation monitoring devices
Why It Is Different
Works with third-party cells of any chemistry including semi-solid-state, scales from motorcycles to energy storage systems. Pairs directly with the UVCU and FCC.
Status
Running in vehicles.
Specification:
| Cell count | 18 cell max per board |
| Pack voltage range | Up to 400 V |
| Supported chemistries | Any |
| Architecture | Distributed |
| Balancing | Passive balancing |
| Temperature inputs | Two thermistors per board |
| Communications | CANBus |