Abstract: An axial flux machine (AFM) includes: a rotor assembly configured to rotate about an axis. The rotor assembly includes a first rotor core and second rotor core. Each of the first rotor core and the second rotor core have a plurality of permanent magnets attached thereto, and each of the first rotor core and the second rotor core are spaced apart and parallel to one another and perpendicular to the axis. The AFM also includes a stator assembly having a PCB located between the first rotor core and the second rotor core and parallel thereto. The PCB defines a stator winding configured to generate a magnetic flux in an axial direction through each of the first rotor core and the second rotor core to cause the AFM to generate a torque. A steer-by-wire system includes a handwheel actuator including the AFM coupled to apply a torque to a steering wheel.

Abstract: A transverse flux machine (TFM) includes a rotor assembly configured to rotate about an axis and including a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets. The TFM also includes a stator assembly including a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. A steer-by-wire system for a vehicle includes a handwheel actuator coupled to apply a torque to a steering wheel. The handwheel actuator includes a transverse flux machine (TFM) which includes a stator assembly and a rotor assembly configured to rotate about an axis. The rotor assembly includes a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets.

Abstract: A multi-phase transverse flux machine (TFM) includes a rotor assembly and a stator assembly. The rotor assembly is configured to rotate about an axis and includes a plurality of rotor cores and a plurality of pairs of permanent magnets. The stator assembly includes a plurality of stator windings and a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. The plurality of stator windings include a first phase winding having a first number of turns and a second phase winding having a second number of turns that is fewer than the first number of turns.

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 transverse flux machine (TFM) includes: a rotor configured to rotate about an axis and having a plurality of pairs of permanent magnets, with flux concentrating and flux diverging cores alternatively placed between the permanent magnets, each of the pairs of permanent magnets arranged to generate a magnetic flux in a circumferential direction into the flux concentrating core and away from the flux diverging core; and a stator including a transverse flux core configured to direct the magnetic flux in each of a radial direction and an axial direction. The rotor further includes a non-magnetic material located between the permanent magnets of each of the pairs of the permanent magnets, adjacent to the flux concentrating core and opposite from the stator, the non-magnetic material having a thickness (TH) in a radial direction. A steer-by-wire system for a vehicle includes a handwheel actuator including a TFM coupled to a steering wheel.

Abstract: A method for passive damping in a steer-by-wire handwheel actuator includes selecting a number of windings for a motor of a handwheel actuator; shorting a subset of windings of the number of windings, each winding of the subset of windings being disposed at an obtuse angle from each other winding of the subset of windings; determining a resistance value for the motor; selectively adjusting the resistance value based on a number of windings associated with the subset of windings; and providing, in series with the subset of windings, at least one metal-oxide-semiconductor field-effect transistor (MOSFET) configured to: vary the resistance associated with the subset of windings based on a vehicle speed; and tune a damping characteristic associated with the handwheel actuator.

Abstract: A method for passive damping in a steer-by-wire handwheel actuator. The method includes winding a first coil around a first tooth of a motor, winding a second coil around a first tooth of the motor, and shorting the second coil to one of an internal aspect of the motor and an external aspect of the motor.

Abstract: A system includes an electric motor, a rotor associated with electric motor, a first pole of the rotor, and a first magnet stack associated with the first pole. The first magnet set includes a set of magnets disposed proximate the rotor arranged according to a skewed arrangement and including at least a first magnet having a first length, a second magnet having a second length, and a third magnet having a third length.

Abstract: A method for passive damping in a steer-by-wire handwheel actuator. The method includes winding a first coil around a first tooth of a motor, winding a second coil around a first tooth of the motor, and shorting the second coil to one of an internal aspect of the motor and an external aspect of the motor.

Abstract: A apparatus may be configured to select a number of windings for a motor of a handwheel actuator; short a subset of windings of the number of windings; determine a resistance value for the motor; and selectively adjust, based on a number of windings associated with the subset of windings and to tune a damping characteristic associated with the handwheel actuator, the resistance value by varying at least one of (i) a number of winding turns associates with the subset of windings, (ii) a wire diameter of associated with the subset of windings, (iii) a number of wires associated with the subset of windings and (iv) a material associated with the subset of windings.

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 transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.

Abstract: Methods, systems, and devices for analyzing communication messages (e.g., emails) and selecting corresponding actions are described. In some database systems, a user may receive multiple messages at a user device. To efficiently determine responses to these messages, the user device may send the messages to a backend server for analysis. The server may perform natural language processing (NLP) to classify the message with one or more binary classifications and may extract metadata from each message. Based on the classifications and the metadata, the server may determine one or more actions the user device may perform to respond to each message. The server may send instructions to the user device indicating the suggested actions, and the user device may display these actions as options to a user. Additionally, the user device may use the classifications and metadata to automatically generate one or more communication templates in response to the message.

Abstract: A transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.

Abstract: Methods, systems, and devices for analyzing communication messages (e.g., emails) and selecting corresponding actions are described. In some database systems, a user may receive multiple messages at a user device. To efficiently determine responses to these messages, the user device may send the messages to a backend server for analysis. The server may perform natural language processing (NLP) to classify the message with one or more binary classifications and may extract metadata from each message. Based on the classifications and the metadata, the server may determine one or more actions the user device may perform to respond to each message. The server may send instructions to the user device indicating the suggested actions, and the user device may display these actions as options to a user. Additionally, the user device may use the classifications and metadata to automatically generate one or more communication templates in response to the message.