Integrated simulation suite for engineering next generation electro-mechanical drivetrains.


Adopt a CAE-led ePowertrain design process with parametric modeling, rapid multi-fidelity analysis and easy-to-interpret engineering metrics to make smarter decisions earlier.

Obtain engineering insight fast, thanks to trusted proprietary component contact models running within a full drivetrain simulation.

Promote collaboration and efficient working across a substantial partner ecosystem for integrated powertrain design which breaks down siloes and boosts productivity.

Encourage innovation in ePowertrain design and reduce time to market

Romax is the industry standard for electro-mechanical powertrain design and analysis. Backed by 30 years of innovation in software technology and engineering expertise, customers rely on our trusted simulation capabilities to reduce physical prototyping, shorten development times, and reduce costs.

Expedite ePowertrain development

An ecosystem of applications that align with your drivetrain and transmission development cycle, from rapid modeling and concept exploration to detailed simulation and virtual product sign-off. Romax applications can be used individually or combined to offer true multi-attribute design optimization considering durability, NVH and efficiency.

Features of Romax include:


Concept stage ePowertrain design

The intuitive interface combined with rapid modeling and analysis allows Romax Concept to identify the optimum drivetrain size and configuration for virtually any application as efficiently as possible.


Durability analysis

Romax Enduro provides trusted structural simulation and optimization for the design of durable, lightweight, and robust electro-mechanical drive systems.


Powertrain NVH analysis

Romax Spectrum is the complete, validated solution for electro-mechanical powertrain NVH simulation.


System Efficiency

Full system simulation, including detailed loss modeling, enables Romax Energy to predict and optimize powertrain efficiency.


Advanced bearing analysis

Romax Spin enables highly detailed design, analysis, and rating of rolling element bearings.


E-machine mechanical design

Romax Evolve is focused on the mechanical aspect of electric machine design, including optimization of durability, efficiency and NVH.

Frequently Asked Questions

Romax is highly focused on drivetrain design, analysis, and optimization. Drivetrain systems present unique challenges due to their highly nonlinear behavior at the gear and bearing contact surfaces. As such, the Romax applications offer highly efficient modeling and analysis capabilities which cannot be matched using general-purpose CAE tools.

Romax uses quasi-static and frequency domain methods to perform structural analysis and NVH analysis of the drivetrain. It can be more like an FE code with parametric component modeling, advanced analytical contact models, rapid solve times, and critical results reported using easy-to-understand engineering metrics. Adams can also be used to analyze drivelines, but its focus is on transient effects and, for drivelines, is mainly used for final verification of the design.

Romax also uses the latest standard to design and rate components to provide the accurate boundary conditions necessary to obtain meaningful results from these standards; Romax performs a detailed nonlinear structural analysis of the whole system to predict forces and misalignments of all critical components.

The Romax frequency domain analysis is fast, highly accurate and generates easy-to-interpret results. As such, it can be used very early in the design phase, meaning potential issues can be identified while they’re easy and cost-effective to fix.

The parametric nature of Romax Spectrum combined with short runtimes means design optimization is also possible. As the design matures, fully detailed Spectrum models can be used alongside Adams to ensure all potential NVH issues have been investigated.

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