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Battery management systems that control safely and precisely.

A BMS determines the safety, range and service life of a battery pack. We develop hardware, embedded software and EMC-compliant design in concert.

Discuss your BMS project

Cell monitoring
Cell balancing
SoC / SoH estimation
Protection & safety functions

More than monitoring — safe, precise energy management.

A battery management system keeps the cells within their safe window and estimates the states the overall system needs. We implement this end to end — from the measurement chain to communication.

Monitor

Keep cell voltages, current and temperature within the safe window.

Estimate

Reliably determine SoC (available energy) and SoH (aging).

Protect

Safely handle over-/deep discharge, overcurrent and thermal risks.

Hardware + software + EMC working together.

Accurate measurement, robust firmware and EMC-compliant design determine the quality of a BMS.

We develop battery management systems that do not just capture cell voltages, but bring safety, diagnostics and operating strategy together. Depending on the application, this includes monitoring of voltage, temperature and current, cell balancing, fault detection and the calculation of state of charge and state of health.

Safety mechanisms
Thermal management
Short-circuit and overvoltage detection
State of charge
State of health
Diagnostics
OTA-capable system architecture

What a BMS must deliver.

Monitoring

Cell & temperature monitoring

Acquisition of cell voltages, current and temperature — the data basis for all further functions.

Balancing

Cell balancing

Charge equalization between cells (passive/active) — for usable capacity and longer service life.

State estimation

SoC & SoH estimation

State of charge and state of health as the basis for range and maintenance.

Safety

Protection & safety functions

Protection against overcharge, deep discharge, overcurrent and overtemperature.

Communication

Interfacing (e.g. CAN)

Report states and diagnostics to the higher-level system.

EMC

EMC-compliant design

Design switching and measurement paths so that interference does not distort measurement accuracy.

EMC →

Frequently asked questions.

Do you develop hardware and software for the BMS?

Yes — measurement electronics, protection circuitry and layout as well as the embedded software (state estimation, balancing logic, communication). Hardware and firmware from a single source avoid interface problems.

Do you take functional safety into account?

We develop along established processes for functional safety and software (e.g. ASPICE). We clarify the specific standards framework on a project-by-project basis.

Why is EMC particularly critical for a BMS?

A BMS measures small cell voltages next to switching currents — without EMC-compliant design, interference distorts the measurement. That's why we factor in EMC from the start and test in our own lab.

Sources (BMS functions): Battery management system (Wikipedia), Synopsys — What is a BMS.

Related services.

A BMS that controls safely and precisely?

We develop hardware, software and EMC-compliant design in concert.

Meine
Harbke

info@samd-solutions.de
+49 1511 0988717

Harbke — Gesellschaftssitz & EMV-Labor mit Vollabsorberhalle · Am Glüsig 1C, 39365 Harbke

Meine — Technische Entwicklung (Elektronik & Embedded) · Peiner Straße 16, 38527 Meine

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