Tula Expertise, a propulsion effectivity firm, has offered new outcomes from checks of its Dynamic Motor Drive expertise as utilized to an electrical car.
Final yr, on the SIA Powertrain 2024 Worldwide Congress in Lille, France, Tula showed off its technology in an EV that had been retrofitted with the corporate’s DMD software program and an externally excited synchronous motor by permitting attendees to take take a look at drives, demonstrating how Tula was capable of cut back power consumption and increase general system effectivity.
Dynamic Motor Drive, Tula stated, eliminates reliance on uncommon earth parts and offers extra effectivity at a decrease value. When a car’s torque requests are low, the DMD software program directs the magnetic subject of the motor to pulse at optimum effectivity.
Working with drivetrain specialist BorgWarner, Tula carried out and examined DMD on a luxurious SUV that additionally had an engine for vary extension. The SUV was outfitted with inside everlasting magnet motors on each the entrance and rear axles. When DMD was utilized to the rear axle solely, car vary elevated 0.6% utilizing the China Gentle-Responsibility Automobile Take a look at Cycle, Tula stated. The corporate stated that making use of DMD to each axles ought to enhance car vary by 1.5%.
Provided that 90% of EVs immediately make the most of everlasting magnet motors that depend on uncommon earth parts, this effectivity enchancment will be instantly translated into lowered battery measurement and value, or alternatively, elevated vary.
“DMD is a software-only expertise that improves the effectivity of electrical drives at low hundreds by pulsing torque close to peak effectivity,” Tula defined.
Fuest stated the corporate initially targeted on making use of its DMD expertise to battery-electric autos, however that it has additionally seen curiosity from makers of plug-in hybrids. In accordance with Fuest, quite a few the world’s automakers are working with Tula to implement Direct Motor Drive on their platforms.
Supply: Tula Technology
