Courtesy : Infineon
As electric vehicles continue to gain traction in the agricultural, commercial, and construction sectors, the demand for efficient and reliable power systems grows. High-voltage traction systems ensure these vehicles operate effectively under heavy loads and demanding conditions such as 60,000 hours of operation time, up to 1.5 million km as well as low FIT rates. Infineon’s EconoDUAL(TM) 250kw Power Kit ,is a prime example that meets the evolving needs of Inverter systems in commercial and agricultural vehicles.
This 250kW three-phase inverter power kit is designed for eCAVs with 800V battery ,addressing the increasing demand for reliable and efficient solutions. It provides a consistent platform for developers working on eCAVs, offering numerous benefits, including a fast time to market via its system solution, and a flexible design with scalable module currents up to 900 A nominal and an easy migration path towards higher voltage class and SiC technology.
Key features
- High-Power Output: specifically designed for 800 V traction–inverter system in eCAVs.
- Accurate current measurement: It integrates our XENSIV TLE4973 Hall coreless current sensors in a compact and easy-to-mount Swoboda universal current sensor module.
- Custom Design Elements: The kit includes specially designed DC-link capacitors and a liquid-cooling system to maintain performance in challenging operating conditions.
- Component Integration: It features three FF900R12ME7 EconoDUAL(TM)3 IGBT7 power modules and 1ED3321MC12N EiceDRIVER gate drivers, ensuring compatibility and ease of assembly.
The EconoDUAL(TM) Power Kit includes three industrial grading EconoDUAL(TM) 3 IGBT7 modules capable of handling high currents efficiently, as well as gate drivers mounted on gate drive boards with booster stages that ensure reliable operation in demanding applications. Additionally, this kit is equipped with an integrated cooling system, which prevents overheating and ensures thermal stability, and is optimized for 800 V systems, with all components, including busbars and capacitors, specifically tailored for high-voltage operation.
Application Development in commercial and agricultural vehicles
The EconoDUAL(TM) Power Kit provides essential tools for addressing the challenges of designing and developing eCAVs. It is particularly suitable for light and medium-duty vehicles such as eBuses and medium-duty eTrucks, while also being applicable to other vehicle types like construction equipment and agricultural vehicles. Its integrated design and advanced components help streamline prototyping and development processes. Additionally, our 32-bit AURIX microcontrollers can be used to enhance the overall system design and ensure functional safety up to the highest ASIL D level. AURIX microcontrollers also offer integrated DS-ADC (delta sigma ADC) to enable a digital calculation of resolver positioning, eventually to replace external resolver IC e.g. Tamagawa, and reduce system complexity.
The microcontroller selection tree can be found below:
XENSIV TLE4973 current sensors, is based on TLE4973 core-less technology. It is highly accurate over temperature and lifetime due to high linearity, stray-field robustness and lack of hysteresis. There is also no need for magnetic concentrator nor a shield, achieving space optimization and design flexibility.
