Batterie-Management-System

Highly reliable 12V Powernet Battery Management System


Enabling technology for increased electrification and autonomy

Batterie-Management-System

Highly reliable 12V Powernet Battery Management System


Enabling technology for increased electrification and autonomy

12V Li-ion Powernet Battery and HV Traction Battery are not the same. The BMS that powers them is even more different.


Here is why

Functional Safety

Ensuring the vehicle’s functional safety and ever increasing automated driving features, 12V BMS provides reliable power deliverability at all times.

Lifetime Prediction

Accurately tracks battery degradation and predicts necessary battery replacement to maintain uncompromised vehicle functionality.

Exceptional Reliability

Operating constantly to supply quiescent current means the HW is developed with best-in-class components for reliability and ultra low power consumption.

Main applications


Advanced Start-Stop (ICE)

Onboard Powernet (HEV or BEV)

Redundancy Power Supply (Highly Automated Vehicle)

Main applications


Advanced Start-Stop (ICE)

Onboard Powernet (HEV or BEV)

Redundancy Power Supply (Highly Automated Vehicle)

Key hardware features


Delivering 200A continuously at 65°C ambient thanks to high performing MOSFET technology, which also supports crank pulses and short circuit currents of over 1400A for 1s.

Allows to diagnose circuit breaker operation and faults without interrupting supply of quiescent power to the vehicle Powernet. 

Diagnosing and robustly withstanding short circuit faults. 

Protecting the battery from safety hazards even when the microcontroller is asleep.

Allows for accurate current measurement across a wide range of current and temperature. This includes accurate quiescent current monitoring during sleep mode. 

Design optimised for minimal self-current consumption when the vehicle is parked, meeting strict targets for applications without wake-up to charge feature. 

Powerful 2 core microcontroller provides required performance, safety and connectivity features. 

Supports both CAN FD and LIN communication protocols with vehicles Powernet. 

Resisting reverse polarity battery connection during jump start event.

Key hardware features


Delivering 200A continuously at 65°C ambient thanks to high performing MOSFET technology, which also supports crank pulses and short circuit currents of over 1400A for 1s.

Allows to diagnose circuit breaker operation and faults without interrupting supply of quiescent power to the vehicle Powernet. 

Diagnosing and robustly withstanding short circuit faults. 

Protecting the battery from safety hazards even when the microcontroller is asleep.

Allows for accurate current measurement across a wide range of current and temperature. This includes accurate quiescent current monitoring during sleep mode. 

Design optimised for minimal self-current consumption when the vehicle is parked, meeting strict targets for applications without wake-up to charge feature. 

Powerful 2 core microcontroller provides required performance, safety and connectivity features. 

Supports both CAN FD and LIN communication protocols with vehicles Powernet. 

Resisting reverse polarity battery connection during jump start event.

Key software features


LV BMS ASW

Ensures the battery is always protected from all safety hazards in all operating modes.

Provides control of the charging and discharging circuit breaker pairs (dual banking) including highly robust diagnostics of all possible failures.

Monitors Powernet quiescent current and notifies vehicle’s energy management system about any abnormalities that could lead to excessive battery drain.

Provides accurate information about battery’s ability to provide power to complete a specific ‘mission profile’, e.g. automated driving or parking, in case of failure of the main power source, e.g. DCDC converter.

Provides accurate information about the batterie’s State of Charge and State of Health. 

Ensures all battery cells remain well balanced.

Detects when external charger is connected to the battery terminals and engages the charging circuit breakers to begin the charging process.

Detects and notifies vehicle energy management system when the full battery charging process has been completed.

Determines and request from vehicle energy management system the full battery recharge.

Provides full system fault detection and determines the most appropriate reaction to ensure battery’s fail-safe operation.

Records key field usage and diagnostics data for offline analysis and over the air updates.

Allows for manual or over-the-air software update with A/B image swap concept.

Support for automotive calibration, diagnostic and OBD services.

Ensures the battery is always protected from all safety hazards in all operating modes.

Provides control of the charging and discharging circuit breaker pairs (dual banking) including highly robust diagnostics of all possible failures.

Monitors Powernet quiescent current and notifies vehicle’s energy management system about any abnormalities that could lead to excessive battery drain.

Provides accurate information about battery’s ability to provide power to complete a specific ‘mission profile’, e.g. automated driving or parking, in case of failure of the main power source, e.g. DCDC converter.

Provides accurate information about the batterie’s State of Charge and State of Health. 

Ensures all battery cells remain well balanced.

Detects when external charger is connected to the battery terminals and engages the charging circuit breakers to begin the charging process.

Detects and notifies vehicle energy management system when the full battery charging process has been completed.

Determines and request from vehicle energy management system the full battery recharge.

Provides full system fault detection and determines the most appropriate reaction to ensure battery’s fail-safe operation.

Records key field usage and diagnostics data for offline analysis and over the air updates.

Allows for manual or over-the-air software update with A/B image swap concept.

Support for automotive calibration, diagnostic and OBD services.

RTE

BSW

How we do it?


Lean development process


Being a small and agile company gives us an advantage to operate effectively under lean development processes. We combine over 150 years of automotive and battery management system development experience and we know how to get it right. Our passion for technology helps us leverage all the advanced automations tools to bring the product to market fast.

Quality


Quality is in our DNA and we continue to push ourselves to and our products to adhere to strict automotive standards like ASPICE, Functional Safety (ISO26262), Cybersecurity (ISO21434) and ISO9001. We also know that our customers wouldn’t expect anything less of us either.

Manufacturing


We believe that the future of electronics manufacturing is to deploy the Electronics Manufacturing Services (EMS) model. This gives a small and flexible company like Eatron an advantage to capitalise on our expertise to produce a world class design, whilst leaning on the reliable and cost effective partner to do the manufacturing.

How we do it?


Lean development process


Being a small and agile company gives us an advantage to operate effectively under lean development processes. We combine over 150 years of automotive and battery management system development experience and we know how to get it right. Our passion for technology helps us leverage all the advanced automations tools to bring the product to market fast.

Quality


Quality is in our DNA and we continue to push ourselves to and our products to adhere to strict automotive standards like ASPICE, Functional Safety (ISO26262), Cybersecurity (ISO21434) and ISO9001. We also know that our customers wouldn’t expect anything less of us either.

Manufacturing


We believe that the future of electronics manufacturing is to deploy the Electronics Manufacturing Services (EMS) model. This gives a small and flexible company like Eatron an advantage to capitalise on our expertise to produce a world class design, whilst leaning on the reliable and cost effective partner to do the manufacturing.

Next steps


1. Book a call

Let us understand your specific requirements to determine the fit of our 12V BMS platform solution.

2. Initial evaluation

We will help you integrate our 12V BMS platform into your battery and calibrate it to your specific cell, so you can carry out necessary evaluation. If needed the mechanical concept can be adjusted at this stage. 

3. Production development

We will carry out all the necessary HW and SW modifications to meet all of our requirements, and mature the design for you through the DV, PV and PPAP stages. Before going into production, the 12V BMS will be assessed in accordance to ASPICE and ISO26262.

4. Field updates

Post production we will support you with further with software updates.

Batteriemanagement neu definiert

Warum Eatron?


We are the pioneers in battery management technology. Eatron unlocks the maximum potential of batteries using Intelligent Battery Management Software – Eatron’s Intelligent Software Layer (ISL). With our passion for science and deep technology, Eatronians develop AI-powered, edge-to-cloud connected, safe software solutions for all automotive players and beyond.

Every Eatron software function can be integrated into the existing BMS architecture and since it’s been developed according to ASPICE and ISO26262 it can be rapidly deployed for serial production. Every ISL function is designed to have a cloud counterpart with integrated connectivity and analytics, enabling OTA updates and unlocking regular software improvements. You can expect superior performance, safety and reliability over the lifetime of all your batteries. Why accept less?

Interested in BMS software solutions, instead?

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