09:33 uur 29-04-2021

Tula’s DMD™ verbetert de efficiëntie van elektrische motoren en vermindert tegelijkertijd zeldzame aardmetalen in elektrische voertuigen met batterijen

Tula Technology presenteert bevindingen over zijn dynamische motoraandrijving op het 42e internationale motorsymposium in Wenen

SAN JOSE, Californië – (BUSINESS WIRE) – Tula Technology, Inc., een leider op het gebied van voortstuwingsefficiëntie, meldde vandaag op het International Vienna Motor Symposium dat hun product Dynamic Motor Drive (DMD ™) de efficiëntieverliezen van elektromotoren vermindert en tegelijkertijd aanzienlijk vermindert afhankelijkheid van zeldzame-aardematerialen. De toepassing van DMD op motoren van elektrische voertuigen heeft het potentieel om het bereik te vergroten met minder energie.

Het verbeteren van de efficiëntie van de aandrijflijn is essentieel om het energieverbruik van een elektrische auto te verminderen. Elektromotoren die zijn uitgerust met zeldzame-aardemagneten kunnen bij topprestaties meer dan 90% rendement opleveren; de rijomstandigheden in de praktijk verminderen echter vaak de motorefficiëntie tot ongeveer 70-85%, ver onder de piek. De gepatenteerde DMD-pulsdichtheidsstrategie vermindert efficiëntieverliezen door verbeteringen in besturingssoftware. Tula heeft het DMD-concept gesimuleerd en projecteert efficiëntieverbeteringen van 2,5% op de Worldwide Harmonized Light Vehicle Test Procedure (WLTP) -cyclus voor een gemiddeld elektrisch voertuig. Deze verbeteringen vergroten het rijbereik en verlagen het totale energieverbruik. DMD is kosteneffectief, softwaregestuurd en vereist geen hardwarewijzigingen aan de motor of het voertuig. Bovendien vermijdt DMD veel van de uitdagingen op het gebied van zeldzame aardmetalen, waaronder oplopende toekomstige kosten, beperkte leverings- en inkooprisico’s.

Tula’s DMD™ Improves Electric Motor Efficiency While Reducing Rare Earth Materials in Battery Electric Vehicles

Tula Technology Presents Findings on its Dynamic Motor Drive at the 42nd International Vienna Motor Symposium

SAN JOSE, Calif.–(BUSINESS WIRE)– Tula Technology, Inc., a leader in propulsion efficiency, reported today at the International Vienna Motor Symposium that their product Dynamic Motor Drive (DMD™) mitigates efficiency losses of electric motors while significantly reducing reliance on rare-earth materials. DMD’s application to electric vehicle motors has the potential to increase range while using less energy.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210429005254/en/

Tula Technology’s DMD™ prototype test vehicle improves efficiency while dramatically reducing the need for rare earth materials in battery electric vehicles. (Photo: Business Wire)

Tula Technology’s DMD™ prototype test vehicle improves efficiency while dramatically reducing the need for rare earth materials in battery electric vehicles. (Photo: Business Wire)

Improving the efficiency of the powertrain is key to reducing the energy consumed by an electric vehicle. Electric motors equipped with rare earth magnets can exceed 90% efficiency at peak performance; however, real-world driving conditions often reduce motor efficiency to approximately 70-85%, far below the peak. The patented DMD pulse density strategy mitigates efficiency losses through improvements in control software. Tula has simulated the DMD concept and projects efficiency improvements of 2.5% on the Worldwide Harmonized Light Vehicle Test Procedure (WLTP) cycle for an average electric vehicle. These improvements increase driving range while lowering total energy consumed. DMD is cost-effective, software-driven and does not require hardware changes to the motor or vehicle. Additionally, DMD avoids many of the rare earth material challenges including escalating future costs, limited supply and sourcing risks.

R. Scott Bailey, president and CEO of Tula Technology, commented, “By 2040, more than half of all passenger vehicles sold globally will be electric*. Tula’s Dynamic Motor Drive technology delivers high-value efficiency improvement to the full spectrum of electrification applications. With DMD, we can take a synchronous reluctance motor with low permanent magnet content and increase its efficiency to a level nearly comparable to a full permanent magnet motor. This reduces reliance on rare earth metals, which translates to lower cost and greater supply chain security. We are very excited about our DMD results, and our team is ready to work with partners and customers to optimize motor system performance in the transportation, industrial and power generation industries.”

Tula’s first product, Dynamic Skip Fire (DSF®), is an advanced cylinder deactivation control strategy that has been shown to significantly reduce CO2 emissions in gasoline engines and has been in production since 2018 with more than one million vehicles on the road. As presented jointly with Cummins at the Society of Automotive Engineers World Congress this year, the diesel application of DSF, Diesel Dynamic Skip Fire (dDSF™), was shown to reduce nitrogen oxide emissions by 74% and CO2 emissions by 5% in a Class 8 truck operating in a low-load cycle. DMD takes Tula’s control strategy to electric motors and has the potential to improve efficiency beyond electric vehicles into other modes of transportation, propulsion, and power conversion.

*Electric Vehicle Outlook 2020, Bloomberg NEF

About Tula Technology, Inc.

Silicon Valley-based Tula Technology provides innovative award-winning software controls to optimize propulsion efficiency and emissions across the mobility spectrum, including gasoline-powered, diesel, alternative fuel, hybrid, and electric vehicles. Tula’s culture of innovation has resulted in breakthrough technology and a robust global patent portfolio of more than 340 patents issued and pending. Tula Technology is a privately held company backed by Sequoia Capital, Sigma Partners, Khosla Ventures, GM Ventures, BorgWarner and Franklin Templeton. More information is available at www.tulatech.com.

Editor’s note: Tula (DMD) video introduces Tula, current electric vehicle motor technology challenges and DMD™ concept, operation and benefits. https://youtu.be/Zx74lfvOZ-U


Tula Technology, Inc.

Ram Subramanian

Principal Marketing Strategist


Financial Profiles, Inc.

Debbie Douglas

Senior Vice President

(949) 375-3436

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