Abstract: A fuel system for an internal combustion engine includes a fuel control system having a fueling control unit structured to determine a test point on a tip wear-sensitive region of a fuel injector delivery curve, and store measurements of pressure drops in a pressurized fuel reservoir caused by injections of fuel at the test point. The fueling control unit is further structured to produce an injector health signal based on the stored measurements of pressure drop. Related methodology and control logic for calculation of wear parameters for injection signal duration electronic trimming and prognostic health determinations are also disclosed.

Abstract: An engine system includes a cylinder block, and a cylinder head attached to the cylinder block and including exhaust ports. Exhaust collection passages are formed in the cylinder head and each fluidly connect to one of the exhaust ports. An unburned hydrocarbon (UHC) emissions mitigation conduit fluidly connects to the exhaust ports to route UHC to an oxidation catalyst or for recirculation.

Abstract: A boot includes an annular body that defines a thru-bore with a thru-bore diameter, and a bore axis. The boot further defines an overall axial length, an exterior, a first axial end, a second axial end, and an aperture that radially extends from the thru-bore to the exterior.

Abstract: Operating a gaseous fuel engine system includes outputting control commands to a first fuel admission valve and a second fuel admission valve to admit, respectively, a gaseous fuel blend containing a gaseous hydrogen fuel (H2), and additional H2, into a gaseous fuel engine. An amount of the additional H2 is determined by way of the respective control command based on a performance target for an engine parameter varying on the basis of a relative amount of H2 in a combustion charge. Related apparatus and control logic is also disclosed.

Abstract: Operating a gaseous fuel engine system includes conveying hydrogen fuel and hydrocarbon fuel into a cylinder in a gaseous fuel engine for combustion. Operating a gaseous fuel engine system further includes receiving an increased engine power output request, boosting a power output of the gaseous fuel engine by varying a ratio of the hydrogen fuel and the hydrocarbon fuel combusted in the cylinder, and varying an in-cylinder combustion parameter based on the varying a ratio. Perturbation to a performance profile of the gaseous fuel engine is thereby limited. Related apparatus and control logic is also disclosed.

Abstract: Track pad includes a first link member that extends upwardly from the shoe member including a first lug member extending from the first link member in a first direction, as well as a second lug member and a third lug member both extending from the first link member in a second direction opposite of the first direction. The track pad also defines a first side cavity that extends from the first lateral end toward the second lateral end, jogging from the front end toward the rear end along the track chain traveling direction, and downwardly toward the ground engaging surface.

Abstract: A system may include a hose assembly; a sensor device; and a controller. The hose assembly may be configured to be connected to a hydraulic circuit of a machine. A first layer, of a hose of the hose assembly, may be configured to transport a hydraulic fluid. A second layer, of the hose, may comprise a tracer material that is configured to be released into the hydraulic fluid when the first layer is experiencing a failure. The sensor device may be configured to detect the tracer material in the hydraulic fluid, and generate sensor data indicating that the tracer material has been detected. The controller may be configured to determine that the hose assembly is experiencing the failure based on the sensor data and cause an action to be performed based on determining that the hose assembly is experiencing the failure.

Abstract: A system may determine configuration information associated with a power system for a work site that includes one or more power sources. The system may determine respective operation parameters of the one or more power sources and one or more performance criteria associated with the power system. The system may determine a baseline operation plan for the power system. The system may identify an optimization analysis technique and may process, using the optimization analysis technique, the configuration information associated with the power system, the respective operation parameters of the one or more power sources, and the one or more performance criteria associated with the power system to generate the optimized operation plan for the power system. The system may cause, based on the baseline operation plan for the power system and the optimized operation plan for the power system, one or more actions to be performed.

Abstract: A work machine having a powertrain, an engine, a torque converter operably connected to the engine, a transmission, a selector interface, and a control system. The control system is configured to: receive a machine activation signal from the selector interface indicative of operation of the work machine; receive machine conditions to determine an optimal gear for next pass; and send a gear pass signal to command execution of a directional shift and a speed shift simultaneously when a gear ratio setting of the transmission is indicative of a second gear ratio.

Abstract: In some implementations, a screen assembly may include at least one plate member having at least one opening; a screen, that is fluid permeable, disposed on the at least one plate member to expose the screen via the at least one opening; an aperture through the at least one plate member and the screen to receive an axle shaft; a notch extending inwardly from an outer edge of the screen assembly to provide a passage for a fluid conduit; and at least one magnet disposed on the at least one plate member.

Abstract: A controller may monitor a plurality of operations performed using one or more implements of the work machine. The controller may determine that the work machine is performing a particular operation based on monitoring the plurality of operations. The controller may obtain, based on information regarding the particular operation, camera view information, from a data structure, indicating that the particular operation is associated with a particular camera of a plurality of cameras of the work machine. Each camera, of the plurality of cameras, may capture a respective view of a plurality of views of the work machine. The controller may determine, based on the camera view information, that a bandwidth associated with a video stream, of a particular view of the work machine captured by the particular camera, is to be increased. The controller may increase the bandwidth associated with the video stream provided by the particular camera based on determining that the bandwidth is to be increased.

Abstract: A system comprises error microphones disposed in a predetermined pattern to capture audio signals including speech and one or more reference sensors to capture a reference noise signal from a noise source. A portion of the reference noise signal is removed from the captured audio signals to generate partially processed audio signals, which are paired to form signal pairs. For each signal pair, a modified cross-correlation vector, with effects of low frequency contents removed, is generated, then converted to a rotated angular domain cross-correlation vector based in part on a physical angle associated with locations of an associated pair of error microphones. The rotated angular domain cross-correlation vectors are summed, and a weighting vector is applied to the sum to identify direction information of a desired audio signal associated with the speech. The directional information is utilized to beamform the partially processed audio signals and output the desired audio signal.

Abstract: A system for updating a virtual worksite includes a plurality of simulated construction machine controllers associated with a corresponding construction machine. Each simulated construction machine controller collects data indicative of an updated height map of one or more portions of the virtual worksite on which the corresponding construction machine is operating. A central controller receives the data indicative of the updated height map of the one or more portions of the virtual worksite from the plurality of simulated construction machine controllers and compares the received data with an initial data model of the virtual worksite. The central controller generates an updated data model of the virtual worksite based on the comparison and transmits the updated data model of the virtual worksite to each of the plurality of simulated construction machine controllers and/or a user interface. The user interface displays a real time streaming of data of the virtual worksite thereon.

Abstract: A cabin light includes a panel coupled with a light source. The panel includes a pair of longitudinal portions extending along a longitudinal axis of the cabin light, a first lateral portion extending between the longitudinal portions along a lateral axis of the cabin light, and a second lateral portion extending between the longitudinal portions along the lateral axis. Each longitudinal portion includes a first surface and a second surface disposed at an offset from the first surface. The first lateral portion defines a first length and includes a first raised surface. The second lateral portion defines a second length, and includes a second raised surface. The cabin light also includes cover in alignment with the light source. The cabin light further includes a switch disposed between the cover and the second lateral portion.

Abstract: A wear member includes a body defining an exterior with an outside perimeter, an interior aperture with an at least partially interior polygonal perimeter, and at least one fastener receiving hole extending from the exterior to the interior aperture. The exterior lacks any large openings to limit the risk of material packing.

Abstract: An engine exhaust aftertreatment system is disclosed. The system may comprise: an internal combustion engine having an intake passage and an exhaust passage; a turbocharger fluidly connected to the internal combustion engine, the turbocharger including a compressor and a turbine, the compressor being in fluid communication with the intake passage, and the turbine being in fluid communication with the exhaust passage; a reductant injector situated downstream of the turbocharger, wherein the reductant injector is closely coupled to the turbocharger such that a reductant is injected into an exhaust flow of the turbocharger; a first container downstream of the reductant injector, the first container including a multi-functional catalyst (MFC); and a second container downstream of the first container, the second container including a selective catalytic reduction (SCR) component and an Ammonia catalyst (AMOx) component.

Abstract: In some implementations, a hydraulic coupling connection includes a coupling disposed at an end of a hose and defining a flange having: a lower surface configured to engage a body of a valve; an upper surface; and an outer diameter surface connecting the lower surface and the upper surface, the outer diameter surface defining a first plurality of straight sides; and a split flange engaged with the coupling, the split flange having: a first lower surface configured to engage the body of the valve; a second lower surface configured to engage the upper surface of the flange; and an inner diameter surface connecting the first lower surface and the second lower surface, the inner diameter surface defining a second plurality of straight sides, wherein engagement between the first plurality of straight sides and the second plurality of straight sides is configured to secure the connection at a first angle.

Abstract: A system for autonomously controlling a fluid refill station (FRS) includes a sensor that generates an input signal indicative of an amount of fluid in a tank of an autonomous truck and a central controller. The central controller monitors the amount of fluid in the tank and assigns the autonomous truck to the FRS if the amount of fluid has reached a minimum threshold value. The central controller determines an alignment of the tank of the autonomous truck with a fluid outlet of the FRS, directs the FRS to refill the tank with fluid if the tank is in alignment with the fluid outlet of the FRS, and directs the FRS to stop refilling the tank when the amount of fluid in the tank has reached a maximum threshold value. The central controller marks the FRS as non-functional based on a determination of an anomaly with the FRS.

Abstract: A monitoring system for a work machine includes at least one imaging device disposed on the work machine and at least one mounting device that support the at least one imaging device. The at least one mounting device includes at least one sensor that generates an input signal indicative of a current orientation of the mounting device. The monitoring system further includes a controller including one or more memories and one or more processors. The one or more processors are configured to receive the input signal from the sensor, determine a location of the imaging device on the work machine and a field of view of the imaging device, determine a presence of blind spots around the work machine, and generate a pictorial view depicting the blind spots around the work machine. The monitoring system further includes a user interface that displays the pictorial view thereon.