Abstract: The present disclosure discloses methods, systems, and non-transitory computer-readable medium for off-grid load stabilization. For instance, the method may include: receiving generator data from at least one generator and energy storage data from at least one energy store; determining, based on the generator data and/or the energy storage data, a moving average of a system load of the at least one generator; and determining, based on the generator data and/or the energy storage data, an instantaneous load value of the at least one generator. The method may further include: determining a first electronic storage dispatch (ESD) based on the moving average of the system load and the instantaneous load value of the at least one generator; and providing the first ESD to the at least one energy store.

Abstract: The present disclosure provides a concentric conductor for conducting electrical power from a source to a receiving system or load. The concentric conductor includes one or more conducting tubes interior to an outer tube, extending concentrically around a central axis. The conducting tubes are affixed a head-end interface and a connector assembly at either end of the concentric conductors.

Abstract: A structurally integrated fuel tank and method of assembling is disclosed. The fuel tank may comprise a body and a neck disposed on the body. The neck may be configured to be coupled to an arm of a front frame of a machine. The body may comprise a cover, an endwall and a base. The cover includes a cover hitch that defines an upper pivot bore centered about a pivot axis. The upper pivot bore is configured to receive a pivot fastener about which the fuel tank is pivotable. The endwall may be disposed below and coupled to the cover. The base may be coupled to the endwall, and may include a lower hitch that extends outward and away from the endwall. The neck and the body together define a chamber configured to store fuel. The cover is a top of such chamber.

Abstract: Operating a gaseous fuel engine system includes controlling at least one of a delivery location, a delivery timing, or in situ mixing of a gaseous fuel with air, based on at least one engine system parameter upon the basis of which a blowby amount of a gaseous fuel to a crankcase varies. Crankcase accumulation of the gaseous fuel is maintained below a flammability limit. Related apparatus and control logic is also disclosed.

Abstract: A fundamental harmonic matching control technique (FHMT) can optimize the use of the switching devices needed to operate a dual active bridge DC/DC converter, which reduces the peak and RMS currents thereby reducing the switching power losses. The FHMT control techniques can also reduce the current rating of the switching devices, transformer, and the inductor of the dual active bridge DC/DC converter.

Abstract: In some implementations, an exhaust gas recirculation cooler may include a shell defining an internal chamber; a first tube support plate defining a first wall of the internal chamber; a second tube support plate defining a second wall of the internal chamber; a plurality of cooling tubes extending through the internal chamber from the first tube support plate to the second tube support plate, the plurality of cooling tubes being flexible tubes; and at least one separator plate, extending within the internal chamber between the first tube support plate and the second tube support plate, that partitions the internal chamber such that a first set of the plurality of cooling tubes are to a first side of the at least one separator plate and a second set of the plurality of cooling tubes are to a second side of the at least one separator plate.

Abstract: A method for determining machine usage severity including collecting repair data for multiple machines over a repair time period and telematics data from sensors on the machines over an activity time period. The method can include calculating predictive features from the telematics data for each of the machines and creating a severity model based on the predictive features. The severity model can be validated with the predictive features and corresponding repair data for each of the machines. The method can include receiving telematics data from sensors on a deployed machine for a deployed period of time, calculating a plurality of machine predictive features from the telematics data, and feeding the machine predictive features into the severity model to calculate a severity score for the deployed machine. The method can include displaying a recommendation to perform maintenance on the deployed machine when the machine usage severity score exceeds a selected threshold.

Abstract: An example component of a machine includes a core layer and an outer layer encasing the core layer. The outer layer has a greater carbon concentration and hardness than the core layer. The outer layer may also be compressively stressed, while the core layer may have tensile stress. The stress and/or hardness profile of the component may enhance its resistance to cracking, particularly in applications where the component is impacted by other object and/or operates at elevated temperatures. The component, such as parts of a fuel injector, may be formed by rough forming the component, carburizing the component, quenching the component, subzero processing the component, and then performing a tempering process. The components may have relatively sharp transition from the high carbon outer layer to the lower carbon core layer. Additionally, the components have a relatively high tempering resistance when used in relatively high temperature environments.

Abstract: An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.

Abstract: A marine propulsion control system for use with a marine vessel includes an engine in electronic communication an engine controller, and a transmission having a gearbox and an oil pressure sensor in electronic communication with the engine controller and configured to measure a transmission oil pressure. The gearbox includes a feedback sensor configured to transmit a gear state. A propulsion device is rotatably connected to the gearbox, and a shaft fixedly attached to the propulsion device and rotatably coupled to the gearbox. The shaft includes a shaft rotation sensor configured to measure a rotational direction of the shaft. A propulsion control processor is in electronic communication with the engine controller, the shaft rotation sensor and the gearbox, and is configured to determine a current gear of the marine vessel based on the rotational direction of the shaft and one or more of the gear state and the transmission oil pressure.

Abstract: A method of allocating power across a microgrid having a plurality of energy storage systems with different power and/or energy capacities, and different states of charge. The method includes allocating a total charge request and/or a total discharge request across the energy storage systems; and limiting the charge and/or discharge of one or more energy storage systems to a submaximal value.

Abstract: A fuel system for a prime mover includes a controller including at least one processor to determine a primary pressure value for a primary fuel, determine a secondary pressure value for a secondary fuel, and perform a first switch from the primary fuel to the secondary fuel if the primary pressure value is lesser than a first lower pressure threshold value, the secondary pressure value is greater than a second upper pressure threshold value, an operating speed value of the prime mover is greater than a fuel type initialization speed threshold value for the prime mover, an absolute speed error value is lesser than a steady-state absolute speed error threshold value for the prime mover, an operating load to be applied on the prime mover is greater than a rated load of the secondary fuel, and a fuel switchover timer threshold duration from a previous fuel switching event has elapsed.

Abstract: A connector for connecting a frame member to one or more other frame members of a space frame assembly is disclosed. The connector includes a body defining a surface and a projection extending outwardly from the surface along a main axis to define an axial end surface away from the surface. The axial end surface defines a curvature having continuity across an expanse of the axial end surface to facilitate formation of a full penetration weld joint between an end of the frame member and the axial end surface upon a contact of the end of the frame member with the axial end surface.

Abstract: A component for a track-type machine comprises a body, a through-bore extending through the body forming an inner wall, and a bushing located in the through-bore. The bushing comprises a bearing surface, an outer surface engaging the inner wall, a flange extending from the outer surface and extending into the inner wall, and retention features located in the outer surface proximate the flange. The retention features comprise voids in the bushing filled-in by material of the body. Methods of manufacturing a component for a track-type system comprises casting-in-place a bushing with a flange and retention features into the component.

Abstract: A wear member comprises a shank portion defining a longitudinal axis, a free end and a perimeter, at least one flat surface on the perimeter extending to the free end and a cross-hole defining a cross-hole axis along which the cross-hole extends through the at least one flat surface perpendicularly, and a wear portion extending downwardly axially from the shank portion, the wear portion including a polygonal configuration.

Abstract: A pipelayer machine includes a propulsion system, a ranging, and a controller in communication with the propulsion system and the ranging system. The controller is configured to receive a predetermined distance that the pipelayer machine is to maintain between the pipelayer machine and an adjacent pipelayer machine, determine, via the ranging system, a first distance between the pipelayer machine and the adjacent pipelayer machine, and determine that a difference between the first distance and the predetermined distance is outside of a predetermined tolerance range. The controller is further configured to modify a speed of the propulsion system based at least in part on determining that the difference is outside of the predetermined tolerance range, wherein modifying the speed of the propulsion system causes acceleration or deceleration of the pipelayer machine.

Abstract: A fuel injector includes a nozzle assembly having a nozzle case, and a concentric check assembly within the nozzle case. Transfer passages are formed in an outer check of the check assembly, and spray orifices are formed in the nozzle case. A fuel volume is formed between the outer check and an inner check, and the inner check is movable to fluidly connect the transfer passages to the fuel volume. The outer check is rotatable between a first angular orientation and a second angular orientation to fluidly connect separate sets of the transfer passages to separate sets of the spray orifices. Spray ducts are in spray path alignment with at least one of the sets of spray orifices.

Abstract: A controller may receive, from a sensor device, machine velocity data indicating a velocity of a machine controlled by a remote control device. The controller may determine, based on the machine velocity data, a distance to be traveled by the machine until the machine stops traveling after a communication, between the machine and the remote control device, is interrupted. The controller may generate, based on the distance, an overlay to indicate the distance. The controller may provide the overlay, for display, with a video feed of an environment surrounding the machine.

Abstract: A blade assembly may include a blade and a wing. The blade may be configured to be pivotably attached to a machine. The wing may be pivotably attached to an end of the blade to adjust a width of the blade assembly. The wing may be movable relative to the blade over a range of motion that is greater than 180 degrees.

Abstract: In some implementations, a controller may obtain a set of measurement values associated with the dual-pump single-power source system, wherein the set of measurement values includes at least one of one or more speed measurements associated with a clutch that is coupled to a power source and a first pump of the dual-pump single-power source system, a measurement value indicating an output speed of the power source, or a first crank angle associated with the first pump and a second crank angle associated with a second pump of the dual-pump single-power source system. The controller may detect that the clutch is experiencing slippage based on comparing at least two measurement values of the set of measurement values. The controller may perform an action to cause the clutch to disengage a mechanical connection between the first pump and the power source while the power source is running and is mechanically connected to the second pump.