BMW, in collaboration with Munich-based tech firm DeepDrive, is pushing the boundaries of electric vehicle technology with a pioneering in-wheel electric motor. Currently in the testing phase, this motor features a unique dual-rotor design that aims to redefine the efficiency, range, and performance of electric vehicles.
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Dual-Rotor Design: A Paradigm Shift
DeepDrive’s innovative concept melds two electric motors into a single unit, creating an extremely compact drive that is both energy-efficient and has a high torque density. This dual-rotor design allows both internal and external rotors to move simultaneously, enabling a more efficient in-wheel drive system with each wheel powered by a separate, compact motor.
Key Benefits:
- Increased Efficiency: The dual-rotor design significantly enhances energy efficiency compared to traditional single-rotor motors.
- High Torque Density: Provides a more powerful and responsive driving experience.
- Compact Design: Frees up space within the vehicle, potentially allowing for more innovative interior layouts.
Flexibility and Compatibility
The new motor system boasts compatibility with traditional centralized drive systems, offering flexibility for various vehicle configurations. By integrating these motors directly into the wheels, BMW envisions electric vehicles that are not only more efficient but also offer increased space and adaptability. Removing the need for bulky, centralized powertrains could revolutionize vehicle design, opening new possibilities for interior layouts and enhancing driving dynamics.
Production Model in Sight
DeepDrive’s technology features a modular design, allowing seamless integration into various vehicle platforms. This innovation could extend beyond passenger cars to electric trucks, buses, and motorcycles. Initial simulations have shown the technology surpasses BMW’s current in-house capabilities, a notable achievement for the smaller DeepDrive team.
“DeepDrive’s prototype parts largely exceeded our specifications,” said Karol Virsik, Head of Research Vehicle Concepts and Technologies at BMW Group.
Partnership with BMW:
Felix Pörnbacher, Co-founder and Co-CEO of DeepDrive, lauded their partnership with BMW for navigating the complex corporate world and meeting the rigorous standards of the automotive industry. The goal now is to integrate the technology into a production model.
Real-World Testing and Future Outlook
BMW is currently conducting extensive tests of DeepDrive’s in-wheel motors on prototype vehicles. These tests will evaluate the technology’s real-world performance, durability, and safety. The data collected will be crucial in refining the design and ensuring it is ready for mass production.
If successful, this innovation could usher in a new era of electric mobility by offering improved efficiency, performance, and versatility. DeepDrive’s in-wheel motors have the potential to revolutionize the automotive industry and accelerate the transition to a sustainable future.
A Big Product Lineup
While DeepDrive’s hub-mounted electric motors are not yet available in production EVs, the company has envisioned a diverse lineup targeting different market segments. At the top of the line, DeepDrive’s RM 2400 targets performance-oriented vehicles, including sports cars, with an impressive 2400 Nm of torque and 250 kW of peak power, all while weighing only 37 kg.
Energy Efficiency:
All of DeepDrive’s wheel hub motors boast up to 20% greater energy efficiency compared to conventional electric motors, promising reduced ownership costs and a greener footprint.
