Tula Technology, a leading propulsion efficiency company, recently revealed the results of tests conducted on its Dynamic Motor Drive technology in an electric vehicle. The company showcased its technology at the SIA Powertrain 2024 International Congress in Lille, France, where it demonstrated a significant reduction in energy consumption and an increase in system efficiency by applying its DMD software to an electric vehicle.
The Dynamic Motor Drive technology eliminates the need for rare earth elements and provides more efficiency at a lower cost. When the vehicle’s torque requests are low, the DMD software directs the motor’s magnetic field to pulse at peak efficiency, resulting in improved overall performance.
Working in collaboration with drivetrain specialist BorgWarner, Tula tested the DMD technology on a luxury SUV with an engine for range extension. When DMD was applied to the rear axle of the vehicle, the range increased by 0.6% according to the China Light-Duty Vehicle Test Cycle. Tula projects that applying DMD to both axles could increase the vehicle range by up to 1.5%.
Given the widespread use of rare earth elements in permanent magnet motors in electric vehicles, the efficiency improvements offered by DMD can lead to reduced battery size and cost, or increased range. Tula’s DMD technology has garnered interest from various automakers looking to enhance the efficiency of their electric and plug-in hybrid vehicles.
Going forward, Tula plans to continue collaborating with automakers to implement the Dynamic Motor Drive technology in their platforms, paving the way for more efficient and sustainable electric vehicles.
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