Dynamic Motor Drive

DMD™ technology delivers motor efficiency gains for mobility and industrial applications without the cost and supply issues of rare-earth metals

How Dynamic Motor Drive
(DMD™) works

DMD uses the same pulse-density concept of DSF and applies that to electric motors and systems. In essence, in response to a requested motor torque demand, Tula’s DMD algorithms operate intermittently at the torque which has the maximum efficiency.

When torque requests are low, the magnetic field is pulsed at optimal efficiency whereas in conventional motor operation, the efficiency is low at low torque.

Torque Modulation

In the efficiency graph, when torque requests are low, DMD operation pulses the magnetic field at optimal efficiency (orange) whereas in conventional continuous motor operation, the efficiency is low at low torque (blue) for the same speed of operation.

DMD software improves range, lowers cost and reduces rare-earth metal dependence of battery electric vehicles, motors and generators

Up to 5% better system efficiency = longer range
Lower rare-earth metals usage = lower cost
Up to 100% reduction in Rare-Earth Materials
Motor laboratory setup for testing

Wherever motors, generators and compressors are used, DMD can improve application efficiency

Tula's latest development in electric motor efficiency

Click to learn more about Tula and our dedication to a cleaner Earth

Vienna Motor Symposium 2021 Paper

Dynamic Efficiency
Starts with Tula

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