Austria – KULI is a cutting-edge thermal management simulation software developed by MAGNA Powertrain GmbH & Co KG, based at the Engineering Centre in Steyr, St. Valentin, Austria. This software enables engineers to design and optimise vehicle cooling and air conditioning systems for both traditional and alternative powertrains. By simulating energy flows (mechanical, electrical, and thermal) KULI ensures that vehicle components operate within their ideal temperature ranges across various operating conditions, enhancing system performance and reliability.

To gain deeper insights into how the software works and its role in the commercial vehicle sector, T&BB interviewed Endre Németh, Account Manager in the KULI Sales Department.

Endre Németh, Account Manager in the KULI Sales Department

Thermal Management Simulation

A thermal management simulation model is a powerful computational tool that predicts, analyses and optimises heat generation, transfer, and dissipation in systems or components. Based on principles of thermodynamics, fluid dynamics, and heat transfer, these simulations ensure efficient, reliable, and safe operation of systems across industries.

Thermal simulation models are widely used in sectors such as electronics cooling, automotive thermal systems, and HVAC systems. They allow engineers to optimise designs early in the development cycle, reducing the need for physical prototypes, saving time, and cutting costs.

In the automotive industry, these models are integral to tasks like managing engine cooling, stabilising EV batteries, and regulating the thermal dynamics of powertrains and cabins. KULI specialises in 1D thermal management models, which enable the integration and optimisation of multiple subsystems, providing a streamlined and efficient path to product development.

The KULI Software

The business model follows a straightforward software-as-a-service (SaaS) approach. KULI is utilised by engineers to design and optimise vehicle thermal management systems, enhancing performance, comfort and reliability. Its versatile applications cover a wide range of vehicle types, including passenger cars, trucks, buses, and heavy-duty vehicles.

KULI workflow

A standout feature of KULI is its legacy, developed by thermal engineers specifically for their needs, the software has been continuously refined for over 25 years. This extensive experience makes KULI's workflow model highly respected among industry professionals, as noted by Németh.

Unlike OEMs attempting to develop in-house thermal management software, KULI provides a ready-made, specialised solution. According to Németh, its ease of integration and depth of functionality make it an industry leader. Most OEMs have resisted the urge to develop in-house software due to the cost and complexity related to the undertaking.

KULI interface

Building Models with KULI

To create a thermal management model in KULI, measurement data is essential. OEMs typically source this data from component suppliers, such as those providing fans, heat exchangers, tubes, or pumps. When suppliers also use KULI, the data can be directly shared via the software. Otherwise, the data can be manually input into the platform. Once the model is built, engineers proceed to prototype creation and validation, ensuring the design meets performance and reliability criteria.

KULI models

Unique Selling Points

Németh emphasised KULI’s specialisation in thermal management as a key differentiator. Unlike competitors offering more generalised software, KULI focuses exclusively on thermal applications, making it exceptionally precise and effective for this purpose.

Another major advantage is the company’s highly experienced support team, composed of seasoned thermal engineers. They assist clients with software support, engineering challenges, and modelling issues. To further enhance customer experience, KULI has dedicated sales partners in North America, China, and India, providing localised support that accounts for language and time-zone differences.

KULI support team

Additionally, KULI’s developers regularly offer training courses and webinars, equipping thermal engineers with the skills needed to maximise the software’s potential. Magna Powertrain also ensures that KULI is constantly updated to reflect evolving industry trends and technological advancements.

Client Base and Industry Impact

KULI’s current clients include Scania, Daimler, Volvo, and Alexander Dennis, along with component suppliers like Denso, Valeo, and Magna, who are known for producing high-quality automotive products. These companies rely on KULI for its ability to deliver precise results that can be seamlessly integrated with other software to enhance overall system management.

By offering a specialised, reliable, and continually evolving tool, KULI plays a vital role in advancing thermal management across industries, ensuring systems meet the highest standards of efficiency, safety and performance.