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MediaService Digital Industries Newsroom

Mobility for the future – Manufacturer of zero-emission vehicles relies on Siemens for battery development

Lion Electric Co. (Lion) manufactures zero-emission school buses, minibuses and urban trucks.

Studies indicate that by 2030 there will be over 40 megacities with ten or more million inhabitants. More people in a confined area also means more cars and therefore more air pollution. Given this situation, Lion decided to develop sustainable mass transportation solutions. There are two main aspects that must be considered here, as Raphael Oullet, Product Designer at Lion, explains: "First, in the case of a battery-powered vehicle, a subsystem analysis is required to have a precise view on how the drive cycles and charging scenarios would affect the battery’s performance. Then the appropriate thermal management solutions must be identified to determine the optimal balance between heating and cooling loops. Secondly, from early development at vehicle level, we must be able to estimate the overall vehicle performance. The realistic range can be determined using real drive cycles."

Optimal design development through simulation

In order to develop a battery and test its performance at the earliest possible development stage, Lion uses Simcenter Amesim system simulation software from Siemens. "Using Simcenter Amesim, we were able to reproduce the thermal exchanges and the forced-air cooling within the battery, which enabled us to define the best design for all the elements of the battery," notes Oullet. Following the design and simulation of the battery, the performance of the physical prototype is tested in a climate chamber and compared with the results of the simulation. With these real tests, the model could be adjusted, improving accuracy considerably. When it comes to managing results, it is very easy to create reports using Simcenter in order to repeat simulations without problems if for example modifications are required. 

The fact that there will be over 40 megacities with ten or more million inhabitants by 2030 means that new transportation and mobility concepts are essential.

The greatest challenges for this innovative company include determining the performance of the battery over the entire driving cycle and temperature control for the battery and vehicle.

Lion uses SimcenterAmesim simulation software from Siemens to design battery models and optimize thermal management.

With the use of Siemens technology, the company benefits from a considerably shorter time-to-market as well as significant time and cost savings for the development and analysis of new products.

With SimcenterAmesim, Lion is able to test the performance of a battery at the earliest possible development stage.

Planning for the future

Using Simcenter Amesim, Lion can improve the design of battery systems considerably, and therefore improve performance. Extremely detailed analyses can be used to accurately investigate various influencing factors, which was not possible with the previous solution based on spreadsheets. These savings enable Lion to focus more intensively on other topics such as new technologies, ensuring the company is ready for the future. The company wants to keep making zero-emission vehicles and systems that will improve the quality of life of future generations.
MediaService application reports may be based on previously published Siemens technical articles.

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Digital Industries

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