ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,968, issued on Feb. 24, was assigned to Atieva Inc. (Newark, Calif.).
"Vibrational order attenuation in an electric motor" was invented by Aditya Chetty (Fremont, Calif.) and Florian Dianoux (Fremont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a general aspect, a method can include applying, by a motor controller, a filter to a signal indicating rotational speed of an electric motor to detect an order of vibration of the electric motor to be attenuated. The method can also include providing the filtered signal to a proportional derivative controller, and generating, by the proportional derivative controller, an attenuation signal for a...