Innovation That Matters

Porsche is helping test the prototype with a drive train designed specifically for the new transistors and cooling methods | Photo source Fraunhofer

Improved EV engine efficiency could extend range by six per cent

Mobility & Transport

The prototype is 3D-printed and is being tested by Porsche for commercial use

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Spotted: Using silicon carbide semiconductors and flexible copper wires, researchers from the Fraunhofer Institute for Reliability and Microintegration IZM have created a thinner, more resilient electric engine power inverter. By reducing the amount of stress on the engine, and increasing the efficiency of the conversion and transport of power from the battery to the motor, the range of electric vehicles could be extended by up to six per cent.

Silicon carbide semiconductors lose less power than current materials used in EV engines. By increasing the overall efficiency, they also generate more heat. To combat the higher temperatures, the Fraunhofer team used 3D-printing to produce much thinner engine pieces. The reduced width allows the transistors to get closer to the water coolant.

Thin copper wires further enable improved flexibility as the engine heats and cools. The scientists replaced the solid copper tracks used to support the engine with flexible wiring. This reduces the likelihood of cracks and breaks, as all the elements have more latitude to move and adjust as conditions change.

Porsche is helping test the prototype with a drive train designed specifically for the new transistors and cooling methods. The overall development will continue to focus on the goal of commercial production and use.

Other recent innovations Springwise has seen that are working to reduce vehicle emissions through more sustainable transport options include an e-bike parking and charging station designed specifically for tight spaces, and battery-powered bicycle carts for cleaner home deliveries.

Written by: Keely Khoury

Explore more: Mobility & Transport Innovations | Computing & Tech Innovations



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