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US 2025/0260351 A1Published application
Pulsed electric machine control
AssigneeTula eTechnology, Inc.
InventorAdya S. TRIPATHI
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AssigneeTula eTechnology, Inc.
InventorAdya S. TRIPATHI
Estimating the term…
Methods, controllers and electric machine systems are described that facilitate pulsed control of electric machines (e.g., electric motors and generators) to improve the machine's energy conversion efficiency. Under selected operating conditions, the electric machine is intermittently driven (pulsed). The pulsed operation causes the output of the electric machine to alternate between a first output level and an off state. The output levels are selected such that the electric machine has a higher energy conversion efficiency during the pulsed operation than the electric machine would have when operated at a third output level that would be required to drive the electric machine in a continuous manner to deliver the desired output. In some embodiments, the power converter it turned off during at least portions of the time that the electric machine is pulsed off.
(canceled)
An electric machine system comprising:
A method of controlling an electric machine, the method comprising directing pulsed operation of the electric machine to deliver a net average of a desired output, wherein the pulsed operation of the electric machine causes the output of the electric machine to alternate between a first output level and a second output level that is lower than the first output level, wherein the first and second output levels are selected such that at least one of the electric machine and a system that includes the electric machine has a higher energy conversion efficiency during the pulsed operation than the electric machine would have when operated at a third output level that would be required to drive the electric machine in a continuous manner to deliver the desired output, and wherein the first output level is lower than a maximum conversion efficiency output level for continuous operation of the electric machine at a current electric machine operating speed.
Dependencies are inferred from the claim text.