A field configurable autonomous vehicle includes modular elements and attachable components. The vehicle can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed vehicles for each mission. The vehicle can include a modular propulsion system with magnetic drive.

Electric propulsion systems, and methods of operating and implementing same, are disclosed herein. In one example embodiment, an electric propulsion system includes an electric motor, a motor drive coupled to the electric motor, and a thermal management subsystem. The electric motor is a permanent magnet synchronous motor, and the motor drive includes each of an inverter including a plurality of wide bandgap semiconductor field effect transistors (FETs), and a controller coupled at least indirectly to the FETs and configured to control the FETs by way of pulse width modulation (PWM) control. Additionally, at least a first portion of the electric motor and at least a second portion of the motor drive are cooled by the thermal management subsystem.

Electric propulsion systems, and methods of operating and implementing same, are disclosed herein. In one example embodiment, an electric propulsion system includes an electric motor, a motor drive coupled to the electric motor, and a thermal management subsystem. The electric motor is a permanent magnet synchronous motor, and the motor drive includes each of an inverter including a plurality of wide bandgap semiconductor field effect transistors (FETs), and a controller coupled at least indirectly to the FETs and configured to control the FETs by way of pulse width modulation (PWM) control. Additionally, at least a first portion of the electric motor and at least a second portion of the motor drive are cooled by the thermal management subsystem.

A field configurable autonomous vehicle includes modular elements and attachable components. The vehicle can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed vehicles for each mission. The vehicle can include a modular propulsion system with magnetic drive.

A field configurable autonomous vehicle includes modular elements and attachable components. The vehicle can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed vehicles for each mission. The vehicle can include a modular propulsion system with magnetic drive.

An electric motor for an appliance includes a rotor coupled with a drive shaft. The rotor includes a plurality of rotor magnets that each define a magnet assembly including a plurality of magnet portions having different magnet pole orientations. A stator is in electromagnetic communication with the rotor. A gap is defined between the stator and the rotor. The stator comprises a stator core. A plurality of stator poles define the gap. Stator magnets are positioned within the stator core and are located to partially define the gap. Each stator magnet defines a pair of flux paths that extend around an outer perimeter of the stator magnet and onto the gap. The different magnet pole orientations of the plurality of rotor magnets operate to direct an effective magnetic flux toward the gap.

Power based self-sensing of a rotor position of an SR motor at mid to high speeds and low torque is achieved by an SR motor control system by comparing the motor power to an injection maximum power. A position current pulse is injected to a stator pole in response to the motor power being less than the injection maximum power. An actual stator current created by the position current pulse is compared to an estimated stator current, and a stored estimated rotor position in a memory is updated to a new estimated rotor position if the actual stator current is not equal to the estimated stator current.

The Magnetic attraction and repulsion device for driving axes in rotation is a new system for producing motive force released through one or two coaxial outlets.

The Magnetic attraction and repulsion device for driving axes in rotation includes a centrally positioned axis carrying one or various permanent magnets and at least one synchronization toothed gear. This assembly forms the rotor. The system also consists of other peripheral axes around the rotor, each carrying at least one permanent magnet and at least one synchronization toothed gear. Finally, transmission toothed gears connect by meshing the synchronization toothed gears of the rotor and those of the peripheral axes. Preferably, all the axes should be in stainless steel.

The continuous activity of the system is achieved by the fact that one or various magnetic poles of permanent magnets carried by the rotor axis, is directed in alternation between two or four magnetic poles of permanent magnets carried by the peripheral axes.

In order to control the continuous movement of the system, the latter uses an electromagnetic stator or a control means composed of rings having permanent magnets thus allowing to control the slowing down, acceleration or resting of this movement. (Whatever the control means can be, it is excluded from the present invention).

The Magnetic attraction and repulsion device for driving axes in rotation is a new system for producing motive force released through one or two coaxial outlets.

The Magnetic attraction and repulsion device for driving axes in rotation includes a centrally positioned axis carrying one or various permanent magnets and at least one synchronization toothed gear. This assembly forms the rotor. The system also consists of other peripheral axes around the rotor, each carrying at least one permanent magnet and at least one synchronization toothed gear. Finally, transmission toothed gears connect by meshing the synchronization toothed gears of the rotor and those of the peripheral axes. Preferably, all the axes should be in stainless steel.

The continuous activity of the system is achieved by the fact that one or various magnetic poles of permanent magnets carried by the rotor axis, is directed in alternation between two or four magnetic poles of permanent magnets carried by the peripheral axes.

In order to control the continuous movement of the system, the latter uses an electromagnetic stator or a control means composed of rings having permanent magnets thus allowing to control the slowing down, acceleration or resting of this movement. (Whatever the control means can be, it is excluded from the present invention).

A method of making a stator module for use in a stator assembly of an electric machine includes temporarily supporting a plurality of stator segments in a desired orientation using a temporary support. The desired orientation of the stator segments is a relative orientation of the stator segments within the stator module. A mold is placed around the plurality of stator segments and the mold is filled with a potting material to form a stator module such that the potting material supports the stator segments in their desired orientation. The temporary support is removed.