Romax Energy

Romax Energy

Drivetrain and transmission efficiency prediction tool to get insight into component and system performance.


Quickly meet efficiency targets by using comprehensive models to predict power losses and make reliable design improvements.

Design and optimize components for efficiency by investigating the impact of varying geometric and operational parameters on system performance.

The democratized Particleworks interface brings CFD into the design stage for increased quality and reduced time to market.

Create efficient drivetrain designs

With Romax Energy, efficiency is at the forefront of the drivetrain design process. Optimized with proven and accurate analysis methods that reduce reliance on physical prototyping, Romax Energy can help reduce development costs of sustainable designs. The key benefits of using Romax Energy include:

Master drivetrain efficiency prediction

Romax Energy makes it easy to carry out robust efficiency simulations with advanced predictive tools. Teams can assess all areas of drivetrain and transmission efficiency well ahead of production and be confident that products are as efficient as possible.

Features of Romax Energy include:


Predict power losses early

Calculate transmission power loss, energy, fuel consumption and emissions using widely used industry methods and our proprietary drag models.


Account for lubricant effects

Accurately predict a lubricant’s effect on system efficiency, based on FVA345 methodology, and select or design the optimal oil.


Quickly assess parameters

Conduct parametric studies to investigate the impact of numerous variables, such as torque, speed, temperature and lubricant levels on system efficiency.

Frequently Asked Questions

Using Romax Energy alongside other Romax products, means that efficiency can be optimized in a single model alongside durability and NVH.

Evaluating losses as part of a system-level static analysis improves accuracy and helps improve understanding of power flows through complex systems.

In addition to the ISO standards, Romax Energy offers proprietary advanced loss models for gears and bearings, that capture a lot more effects (e.g. bearing misalignment, detailed geometry, and lubricant traction properties).

Meshless CFD tools such as Particleworks are very good at predicting trends, so are well suited for what-if design studies at an early stage (e.g. effect of fill depth on churning loss). The interface from Romax Energy to Particleworks reduces the time taken to build a functioning drivetrain model in CFD, making it easier to include CFD within design studies.

Documentation Center

Check out our online documentation centre for product information and guidance

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