Abstract: A reciprocating pump includes a fluid end having a body defining a plunger bore that engages a plunger sleeve with a threaded interface, where the plunger sleeve defines throughbore configured to receive a plunger operatively reciprocating within the plunger bore during operation of the reciprocating pump. A packing assembly including a plurality of stacked annular seals is disposed between the plunger sleeve and the plunger. A packing nut having a threaded profile for engagement with a threaded surface of the plunger bore asserts a load against the packing assembly to ensure a positive engagement with the plunger.

Abstract: A track link for a ground-engaging track system includes a link body having a pin bore formed in a first link strap and a bushing bore formed in a second link strap. The link body includes, upon an outboard link side, a bore peripheral surface extending circumferentially around a bore center axis, and a guide protrusion including an outer bump surface located outboard of the bore peripheral surface. The pin bore receives a track pin attached by swaging and defines a diametric plane through the bore center axis oriented parallel to an upper rail surface. At least a majority of the outer bump surface is between the diametric plane and the upper rail surface, and an entirety of the outer bump surface may be between the bore center axis and the upper rail surface. The guide protrusion protects material of the track link and/or track pin from wear that can prevent re-swaging.

Abstract: A pump and purge valve configuration may include an inlet, an outlet arranged downstream of the inlet and defining a portion of an operational fluid pathway, and a pump mechanism arranged along the operational fluid pathway between the inlet and the outlet. The pump and purge valve configuration may also include a purging fluid pathway having a purge inlet in fluid communication with the operational fluid pathway at a point downstream of the pump. The purging fluid pathway may extend from the purge inlet to a relief point. The pump and purge valve configuration may also include a purge valve arranged along the purging fluid pathway. The purge valve may be configured to remain open unless a triggering fluid pressure develops in the pump mechanism.

Abstract: A system and method for controlling a motor of an electric drivetrain having a multi-speed transmission with at least a first clutch and a second clutch. The system and method includes initiating a transmission shift requiring engagement of the first clutch, applying synchronizing torque commands to the motor based on an engagement parameter of the first clutch until the shift is complete, and applying non-shifting torque commands to the motor after the shift is complete.

Abstract: A control system for a machine includes one or more component controllers for one or more components of the machine. The control system also includes a supervisory controller, connected to the one or more component controllers, and having at least one supervisory processor configured to perform operations comprising receiving supervisory system inputs, including at least one of a machine component status input, a key switch input, a directional input, or an operator presence input, from an operator of the machine, requesting and receiving, from each of the one or more component controllers, a status of the one or more components, and, upon receiving an indication that a status of a component, of the one or more components, is faulted, disabling the faulted component, and disabling any other components, of the one or more components, that require the faulted component for operation.

Abstract: A method of cell balancing for a battery comprising a plurality of cells. The method comprises determining a cell balancing strategy based on at least one of a cell chemistry of the battery; an expected use cycle of the battery; and a first state of the battery, wherein the first state is a detected state of the battery. The method further comprises discharging one or more cells according to the cell balancing strategy when the battery is in a second state, wherein the second state is a detected state of the battery. The cell balancing strategy is configured to discharge one or more of the plurality of cells such that a balancing parameter of each cell being discharged reaches a threshold value. The balancing parameter comprises at least one of a voltage; a state of charge; and a voltage difference.

Abstract: An electric powertrain includes an electric power source, an electric motor and a multi-speed transmission. The powertrain has an electronic controller. The controller determines a respective rimpull torque limit for the operating gear of the multi-speed transmission and determines whether the rimpull torque demand exceeds the rimpull torque limit. Upon determining that the rimpull torque demand exceeds the rimpull torque limit, the controller acts to either (i) shift the multi-speed transmission to a gear in which the respective rimpull torque limit is at or above the rimpull torque demand or (ii) reduce the electric motor torque command to a level for which the rimpull torque is below the respective rimpull torque limit for the operating gear of the multi-speed transmission.

Abstract: A mobile machine can include a traction powertrain configured to operate on electrical power and which includes a traction motor coupled to a transmission. To lubricate the transmission, the mobile machine can include a lubrication system having a lubricant pump coupled with a pump motor. The traction motor and the pump motor are electrically arranged in parallel with each other. A powertrain sensor monitors rotational motion in the traction powertrain and an electronic controller can generate a lubricant supply command directing the lubricant pump to deliver a first lubricant quantity to the transmission.

Abstract: Operating an electric drive machine includes neutralizing a transmission in the electric drive machine operating in a first range, determining suitability of the electric drive machine for operating the transmission in a second range, and calculating a target transmission input speed, based on a speed parameter indicative of a transmission output speed, and the determined suitability for operating in a second range. A speed of an electric drive motor is varied based on the target transmission input speed, and a second clutch engaged to operate the transmission in the second range based on the varied speed of the electric drive motor. Related apparatus and control logic is also disclosed.

Abstract: A mobile drilling rig is configured to drill boreholes into the ground about a drill site. To assist navigating the mobile drilling rig and other machines about the drill site, a material pile mapping system can be included that includes the borehole locations and an estimated material pile dimension associated with a material pile formed about the borehole from material removed during drilling of the borehole. The material pile dimension can be estimated from an estimated material pile volume of the material removed from the borehole.

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: Systems and methods are disclosed for optimal utilization of machines for performing tasks across a predetermined area. A request may be received to initiate a job on a predetermined area, the job comprising a plurality of tasks associated with a plurality of machines. In response to the request, a first machine of the plurality of machines may be deployed to the predetermined area to execute a first task of the plurality of tasks autonomously. A deployment event may be determined based on characteristics of the first machine and a second machine, and based on characteristics of the predetermined area. The second machine to the predetermined area, upon detection of the deployment event, to execute a second task of the plurality of tasks autonomously.

Abstract: A work machine can include a machine frame; and a component box holding a plurality of electrical components mounted to a roof of the machine frame; wherein the component box includes a plurality of indicator light sets exposed on an outer surface of the component box, wherein the plurality of indicator light sets are configured to indicate to external personnel a mode of operation of the work machine.

Abstract: Systems and methods for operating a hybrid power system are disclosed. A controller may perform operations, including: obtaining load data for the hybrid power system; obtaining power availability data and energy cost data for each power asset in each power asset group of a plurality of power asset groups; and determining active power commands for each power asset by performing at least one optimization, such that the determined active power commands optimize a total operating cost, wherein: the at least one optimization is based on at least one cost function that accounts for asset degradation, asset maintenance cost, asset operation efficiency cost, and the energy cost data; and the at least one optimization is constrained by a plurality of constraints based on the load data, the power availability data, and characteristics of the power assets; and operating each power asset based on the determined active power commands.

Abstract: An adaptor includes a body defining a longitudinal axis, and a transverse axis that is normal to the longitudinal axis. The body also has a leading portion defining a lock receiving recess extending transversely at least partially through the leading portion. The leading portion defines at least one linear portion in the lock receiving recess that is configured to engage the power locking device.

Abstract: A method for part replacement timing optimization. The method includes training a wear estimate model. Training the model includes predicting a plurality of wear patterns for a part, each wear pattern corresponding to a degree of severity. Training images are rendered for each wear pattern. Each of the training images is labeled with the corresponding degree of severity. A neural network is then trained with the labeled training images. An image of a deployed part associated with a machine is received and fed into the trained wear estimate model. The method further includes receiving a wear estimate for the part image from the trained wear estimate model, estimating a change in performance of the machine based on the wear estimate, and determining a machine utilization pattern for the machine. The machine utilization pattern and the change in performance estimate are combined to determine an optimal time to replace the part.

Abstract: The present disclosure relates to improvements in turbocharger efficiency and more particularly to a method and system for estimating the efficiency loss of a turbocharger. The method comprises the steps of monitoring a plurality of operating parameters and determining a compressor exit temperature according to a first calibration map based on these operating parameters. An estimate of instantaneous turbocharger efficiency loss according to a second calibration map is then determined, based on the compressor exit temperature. The instantaneous turbocharger efficiency loss is used to determine an estimate of cumulative turbocharger efficiency loss during engine service. The estimate of cumulative turbocharger efficiency loss is compared with a first predetermined efficiency loss threshold and a first signal is generated if the first predetermined efficiency loss threshold is exceeded.

Abstract: Operating a gaseous fuel engine includes spark-igniting gaseous hydrogen fuel and air, and propagating combustion gases of the spark-ignited mixture outwardly from a spark gap. The propagating combustion gases are impinged upon a cone surface of a piston so as to limit a flame area of the propagating combustion gases. Additional gaseous hydrogen fuel and air is ignited in the combustion cylinder by way of the propagating combustion gases to urge a piston toward a bottom-dead-center position.

Abstract: A swage tool includes a plurality of swage projections that each defines an angular circumferential extent, and the sum of each of these angular circumferential extents is at least 290 degrees.

Abstract: In some implementations, a dual gas transport system includes a trailer, one or more tanks mounted on the trailer, wherein each of the one or more tanks includes a first compartment and a second compartment, the first and second compartments being separated from each other by a sliding piston, and an electronic control module configured to control operations of the one or more tanks.