Abstract: A method performed by a controller of an electric motor, including generating control parameters, the step of generating control parameters selected from: inputting a given reference torque (Tref) and a speed command to a torque generation lookup table (LUT) such that the step of generating the control parameters includes the torque generation lookup table at the given reference torque and the speed command; or utilizing an analytical model that includes one or more analytical equations or one or more functions; inputting the control parameters to a DC-link current ripple, torque ripple, and radial force ripple minimization lookup table; inputting position to the DC-link current ripple, torque ripple, and radial force ripple minimization lookup table; generating a reference current profile from the DC-link current ripple, torque ripple, and radial force ripple minimization lookup table; and inputting the reference current profile to the electric motor. Additional methods are disclosed.

Abstract: A method of operating a motor includes providing an electric system coupled with the motor, the electric system including parallel inverter legs; subjecting the motor to a first interleaving angle when the electric system is under a first condition; and subjecting the motor to a second interleaving angle different from the first interleaving angle when the electric system is under a second condition; wherein the steps of subjecting the motor to the first interleaving angle and subjecting the motor to the second interleaving angle occur within continuous operation of the electric system and the motor.

Abstract: A soundproof flooring system for overlying a sub floor includes a resilient soundproof membrane laying down on the sub floor. Elongated supports disposed generally parallel and spaced relationship relative to each other lay down on the membrane in alternate fashion with elongated spacers. Each support includes an elongated channel with a core slip encased therein. The plywood slip has a rib with an outer surface protruding out from the channel to support and secure the finish floor thereto. Each spacer slightly protrudes out upwardly from the rib outer surfaces of the plywood slips to support the finish floor thereon. The wood planks of the finish floor are transversely secured to the plywood slips using a bonding agent with staples or cleats.