| BOREALIS TECHNICAL LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120018574 | MOTOR CONTROLLER - This application describes the software invented to control an electric motor system. The electric motor system is mounted on one or more aircraft main wheels or nose wheels to drive an aircraft independently on the ground without aircraft engines or tow vehicles. The software uses closed-loop control together with several other control laws to operate the drive motor or motors. Knowledge of the current operating state of the drive motor, together with knowledge of the commands given to taxi forward, taxi in reverse, or brake in reverse, is used to configure the motors to optimal operating parameters. The software architecture is described along with the pilot interface and many details of software implementation. | 01-26-2012 |
| 20120001018 | Electric Motor Integrated with a Wheel - An integral motor and wheel assembly for aircraft landing gear is provided that includes an electric motor packaged within at least one gear wheel and configured to fit completely within the space provided in an existing aircraft for the landing gear components. The motor is positioned within the wheel to minimize the spin-up weight and to maximize the space within a given volume allocated for the motor. Installation of this motor and gear wheel assembly in an existing aircraft landing gear is designed to permit the continued use of existing landing gear components, including tires, axles, and pistons, so that the assembly can be easily retrofitted into existing aircraft. | 01-05-2012 |
| 20110297786 | Integrated Electric Motor and Gear in an Aircraft Wheel - A wheel design is provided for an aircraft landing gear wheel that is configured to maximize the space available within a landing gear wheel well to support a geared motor assembly that drives the aircraft wheel when the aircraft is on the ground. The wheel includes inboard and outboard support walls that are spaced apart a selected distance along the wheel axle so that the geared motor assembly components are substantially completely contained within the wheel space defined by the support walls. The preferred motor driver assembly includes an electric motor and a gear and clutch assembly operatively connected to the wheel to drive the wheel and move the aircraft on the ground. The wheel and motor driver assembly described herein may be retrofitted in an existing aircraft wheel without changing existing landing gear components, including tires, piston, and axle. | 12-08-2011 |
| 20110284685 | Wheel Structure for Integrating an Electric Drive Motor - A wheel design is provided for an aircraft landing gear wheel that is configured to maximize the space available within a landing gear wheel well to support a motor driver assembly that drives the aircraft wheel when the aircraft is on the ground. The wheel includes inboard and outboard support walls that are spaced apart a selected distance along the wheel axle so that the motor driver assembly components are substantially completely contained within the wheel space defined by the support walls. The preferred motor driver assembly includes an electric motor and a gear and clutch assembly operatively connected to the wheel to drive the wheel and move the aircraft on the ground. The wheel and motor driver assembly described herein may be retrofitted in an existing aircraft wheel without changing existing landing gear components, including tires, piston, and axle. | 11-24-2011 |
| 20100219788 | High phase order AC Machine with Short Pitch Winding - A high phase order alternating current rotating machine is disclosed having an inverter drive that provides more than three phases of drive waveform of harmonic order H, and characterized in that the windings of the machine have a pitch of less than 180 rotational degrees. Preferably the windings are connected together in a mesh, star or delta connection. A method for operating a high phase order induction motor is also disclosed, involving electrically connecting N windings into a mesh connection with a value of Δ that provides a substantial range in speed/torque relation when operating with at least two out of first, second and third harmonic, low order harmonics being the most efficient. | 09-02-2010 |
