Battery Management Systems (BMS) are the control centre of modern electric vehicle batteries, continuously monitoring and managing charging, energy storage, performance, thermal behaviour, degradation and safety. As battery systems become more complex, engineers need to validate BMS behaviour early—before relying on extensive physical testing.
Ansys provides an integrated approach to BMS development, system-level simulation, functional safety analysis and embedded software development, helping engineering teams improve safety, reduce development effort and make faster, more informed design decisions.
BMS development requires coordination between battery, electronics, controls and embedded software. Traditional approaches that rely heavily on physical prototypes and testing can make it difficult to identify how changes in one domain affect overall system behaviour. Model-based and simulation-driven approaches provide a common environment to explore these interactions earlier in the development process.
Key Benefits
Ansys combines physics-based simulation, model-based development, safety analysis and embedded software solutions to support BMS development from system architecture through software verification and virtual validation.
Analyze BMS architectures, identify potential hazards and evaluate failure modes to support the development of safe and compliant battery systems.
Capabilities
Ansys solutions support safety-integrated BMS development, including ISO 26262-qualified code generation up to ASIL D.
Simulate the interaction between the battery, BMS and vehicle system to understand performance across operating conditions and battery life.
Capabilities
Develop, simulate and verify the software that controls critical BMS functions before deployment to the vehicle.
Capabilities
Model-based approaches also help battery and software teams understand the effects of design changes and trade-offs across mechanical, electrical and software domains.
From System Architecture to Virtual Validation
Define battery, BMS and vehicle-level architecture.
Identify hazards, risks and failure modes.
Develop and verify BMS control software.
Simulate battery and BMS interactions.
Test normal and fault operating conditions.
Verify performance, safety and software behavior.
A modern BMS must manage several critical battery functions. Ansys solutions can support the development and verification of algorithms and software associated with:
BMS performance cannot be evaluated in isolation. Its behavior depends on the physical battery and the conditions in which the battery operates.
Ansys enables engineering teams to connect battery physics, thermal behavior, structural performance and BMS/software models, helping teams evaluate system-level interactions and make informed design decisions earlier.
This can include analysis of
Functional Safety & Risk Analysis
Perform integrated safety analysis to support the development of safe and reliable BMS architectures.
Key capabilities
Embedded BMS Software Development
Develop and verify safety-critical embedded software using model-based development and qualified code generation.
Key capabilities
System Simulation & Digital Twins
Create system models and digital twins to simulate battery and BMS behavior and support virtual validation across the system lifecycle.
Key capabilities
CADFEM helps engineering teams build a virtual development and validation environment for the BMS, connecting battery physics with thermal behaviour, electrical performance, controls, safety, and embedded software. This enables teams to evaluate BMS algorithms against realistic battery operating conditions, investigate faults and edge cases, and validate system behaviour before hardware is fully available.
With CADFEM, teams can:
A BMS monitors and manages battery charging, energy storage, performance, thermal behavior, degradation and safety.
BMS simulation uses virtual battery, system and software models to evaluate BMS behavior before physical testing.
It helps engineers identify issues earlier, reduce physical testing and validate battery and software behavior across operating conditions.
Ansys supports BMS development through system simulation, functional safety analysis, model-based software development, code generation and virtual validation.
BMS simulation can support functions such as cell balancing, thermal management, SoC estimation, voltage/current monitoring and safety functions.
Ansys solutions support safety-related BMS development workflows aligned with ISO 26262, including qualified code generation up to ASIL D.