Abstract: The invention relates to a floatable wind turbine (1), comprising: a rotor (2), a generator (3) driven by the rotor, a nacelle (4) housing the generator, a floatable foundation (5), a mast section (6), electrolysis equipment (9) for producing hydrogen from a water mass (10) upon which the floatable foundation is floating during use, water treatment equipment (11) for preparing water from the water mass for use in the electrolysis equipment, and one or more storage vessels (12) for storing the hydrogen, arranged below a waterline (13) of the water mass for providing buoyancy to the floatable wind turbine, wherein a storage pressure of the hydrogen in the one or more storage vessels is 2-30 bar.

Abstract: This document discloses system, method, and computer program product embodiments for managing data generated by one or more systems of a vehicle. In various embodiments, a processor onboard a vehicle receives messages generated by one or more onboard systems of the vehicle. The system saves a first set of the messages to a first storage location on the vehicle according to a first data logging policy. The system processes a second set of the messages to reduce data elements and yield offboard data that is designated for offboard use. The first and second sets of messages may or may not overlap with each other. The system saves the offboard data to a second storage location that is onboard the vehicle and subject to a second data logging policy. The second data logging policy differs from the first data logging policy.

Abstract: A three-dimensional (3-D) printer and technique for integrating additive and non-print manufacturing operations is disclosed. In an aspect, the 3-D printer includes an energy source and a powder bed regions for selectively fusing layers of a build piece. The 3-D printer further includes a robotic arm. The 3-D printing is interrupted responsive to instructions from a controller, upon which the robotic arm may perform one or more non-printing operations using the build piece such as milling, casting, molding, pressing, and the like. Following the non-printing operations, the 3-D printing operation continues, and a resulting assembly including the build piece is produced.

Abstract: A propulsion assembly includes a first torque source coupled with a first shaft and a second torque source coupled with a second shaft. A coupler selectively couples the first and second torque sources. When the first and second torque sources are coupled via the coupler, in response to a command to decouple the first torque source, an unloading operation is performed to decrease the torque output provided by the first torque source to a threshold, and when reached, the first shaft is decoupled from the coupler. When the first torque source is coupled with the coupler but the second torque source is not, in response to a command to couple the second torque source, a speed matching operation is performed to increase the speed of the second shaft to match a speed of the first shaft, and when the speeds are matched, the second shaft is coupled to the coupler.

Abstract: This document discloses system, method, and computer program product embodiments for anticipating an imminent state of a school transportation vehicle. For example, the method includes receiving sensor data of an environment near an autonomous vehicle. The method further includes, in response to the sensor data including a representation of a school transportation vehicle, analyzing the sensor data to estimate, from a set of candidate states, a current state of the school transportation vehicle, wherein the candidate states include an actively loading or unloading state, an imminently loading or unloading state, and an inactive state. The method further includes, in response to the estimated current state being either the actively loading or unloading state or the imminently loading or unloading state, causing the autonomous vehicle to slow or stop until the school transportation vehicle is in the inactive state.

Abstract: This document discloses system, method, and computer program product embodiments for estimating the state of a school transportation vehicle. For example, the method includes capturing sensor data that includes information about an environment of an autonomous vehicle. The method further includes detecting a school transportation vehicle in the sensor data, receiving a list of indicators associated with a set of candidate states for the school transportation vehicle, and analyzing data from one or more sources to determine indicator values. The method further includes using the indicator values to compute a probability mass function that includes a likelihood that the school transportation vehicle is in each of the candidate states. The method further includes imposing one or more goals on a motion control system of the autonomous vehicle based on the probability mass function and causing the autonomous vehicle to operate according to the one or more goals.

Abstract: A power system including a power converter system and an electric machine is provided. In one aspect, the power converter system has first and second switching elements. The electric machine includes a first multiphase winding electrically coupled with the first switching elements and a second multiphase winding electrically coupled with the second switching elements. The first and second multiphase windings are arranged and configured to operate electrically opposite in phase with respect to one another. One or more processors control the first switching elements to generate first pulse width modulated (PWM) signals based on received voltage commands to render a first common mode signal and also control the second switching elements to generate second PWM signals based on received voltage commands to render a second common mode signal. The rendered first and second common mode signals have the same or similar waveform with opposite polarity with respect to one another.

Abstract: A shearing apparatus includes a housing, dies within the housing, a force transmitting apparatus; and a die engaging mechanism between the force transmitting apparatus and the movable die. The dies are movable relative to each other and have cutouts which cut a workpiece. The die engaging mechanism is releasable to decouple the force transmitting apparatus from the movable die.

Abstract: A chemical mixture dispensing assembly for automatically filling a fluid containment with a predetermined ratio of chemicals and water includes a housing that is mountable on a support surface such that the housing is positioned proximate a fluid containment. The housing is fluid coupled to a water source, a first chemical source and a second chemical source. A mixing unit is positioned in the housing and the mixing unit mixes a predetermined volume of fluid from the first chemical source and the second chemical source with a predetermined volume of water from the water source to produce a fluid mixture. The mixing unit dispenses a predetermined volume of the fluid mixture from the mixture outlet to fill the fluid containment with the fluid mixture.

Abstract: Aspects of the present disclosure are directed to systems and methods for detecting Partial Discharge (PD) associated with wide bandgap semiconductor-based electrical drive systems in real time. In one aspect, signals, including noise associated with drive switching and other background noises are detected using a sensing device. The signals are received by a real-time spectrum analyzer. The spectrum analyzer transforms the signals into the frequency domain and determines or registers the frequency domain profiles of the signals. The spectrum analyzer performs signal discrimination between at least one other signal included within the signals and switching noise based on their frequency domain profiles. Based on the discrimination analysis, the presence of a partial discharge signal may be detected. A physics-based signal discrimination approach can also be used for signal discrimination, for example utilizing pressure-dependency of characteristics of a PD signal.

Abstract: A bender configured to bend a workpiece in a bending operation and its method of use are provided. The bender includes a frame, a bending shoe assembly rotatably mounted on the frame, a control system and a driver in communication therewith, and a springback assembly in communication with the control system and configured to provide information to the control system regarding information on a bend affected to the workpiece. The bending shoe assembly includes a bending shoe into which the workpiece can be seated, and a gripping member mounted on the bending shoe and configured to grip the workpiece during the bending operation. The driver provides rotational force to the bending shoe assembly to rotate the bending shoe assembly relative to the frame.

Abstract: An electric machine can include a stator core having a plurality of core teeth that define a plurality of core slots in a surface thereof. A winding can be housed at least partially in the core slots. The winding can include a tube defining a channel through at least a portion thereof and one or more wires disposed along a surface of the tube that is opposite the channel. A cooling system can be operably coupled with the channel and configured to move a cooling fluid through the channel.

Abstract: A propulsor is provided including a gas turbine engine having a shaft and one or more bearings supporting the shaft, a rotor hub operatively coupled to the shaft and comprising a hub flange, an electric machine comprising a stator assembly and a rotor assembly, a rotor connection member operatively coupled to the rotor assembly of the electric machine and comprising a connection flange, and an insulated joint for operatively coupling the rotor assembly with the shaft. The insulated joint includes a plurality of insulative layers, at least one of the plurality of insulative layers extending between the hub flange and the connection flange to interrupt common mode electric current from flowing between the rotor assembly and the shaft.

Abstract: An electric component for an electric machine includes a body having slots defined therein, and a conductive winding extending out of axial end(s) of the slot(s). The electric component may include any electric machine component having conductive windings, e.g., a stator for a generator. The electric component includes a resin dam around the conductive winding at axial end(s) of the slot(s). The resin dam blocks liquid communication through at least a space between the conductive winding and an inner surface of the slot(s), during manufacture. The electric component also includes a (solidified) insulating resin in the slot(s) and against the resin dam(s) at the axial end(s) of the slot(s). Any number of the conductive windings and slots may include a resin dam, e.g., one, some or all. The resin dams ensure complete filling of the slots and encapsulation of the conductive windings.

Abstract: The present disclosure generally relates to biasing an isolation region in a semiconductor substrate. In an example, an integrated circuit includes a semiconductor substrate, a first rectifying device, and a second rectifying device. The semiconductor substrate has a first region, a second region, and a third region each being an opposite conductivity type from the semiconductor substrate. The first region and the second region are respective current terminals of a transistor. The first rectifying device has a first positive terminal and a first negative terminal. The first positive terminal is coupled to the first region, and the first negative terminal is coupled to the third region. The second rectifying device has a second positive terminal and a second negative terminal. The second positive terminal is coupled to a ground terminal, and the second negative terminal is coupled to the third region.

Abstract: An electric machine having an electrically insulative manifold is disclosed. In one example aspect, an electric machine includes a non-electrically conductive manifold. The manifold defines a chamber operable to receive a cooling fluid. The electric machine includes a prime winding in fluid communication with the chamber and one or more secondary windings in electrical communication with the prime winding and in fluid communication with the chamber. Further, the electric machine includes an electric machine terminal extending through the non-electrically conductive manifold and coupled with the prime winding. The electric machine terminal can provide or collect cooling fluid from the chamber of the manifold and can act as the electrical connection point for directing electrical power to or from the windings of the electric machine.

Abstract: A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: An electric winding assembly comprising a conductor core which includes at least a first end and a distal second end, an insulation layer overlying the conductor core, and a conductive shield layer overlying the insulation layer. The conductive shield layer further having a terminal end conductively connected with the conductive shield layer.

Abstract: Techniques for joining nodes and subcomponents are presented herein. An additively manufactured first node or subcomponent has a groove. An additively manufactured second node or subcomponent has a tongue configured to extend into and mate with the groove to form a tongue-and-groove connection between the first and second node or subcomponent. In some aspects, the tongue-groove connection may extend substantially around a periphery of the node or subcomponent. In other aspects, a first subcomponent having a fluid pipe interface may be coupled via a tongue-groove connection to a second subcomponent having a fluid pipe interface, thereby enabling fluid to flow between subcomponents of the resulting integrated component.