An electric drive machine includes an electric drive system structured to operate ground-engaging propulsion elements, a power distribution unit (PDU), and a plurality of electrically powered accessories arranged in a first accessory set and a second accessory set. The PDU includes a first bus…
A system for determining a position of a power rail of an electric power supply system at a worksite includes a work machine, a first sensor that generates a first input signal corresponding to a geographical position of the work machine, a second sensor that generates a second input signal…
Techniques are described that address the unequal loss distribution between switches in the top half and the bottom half of the primary side full bridge circuit of the H bridge of two-level SAB and DAB converters. The techniques involve dynamically controlling the duty cycles of power switches in…
A rail connector assembly for an electrically powered mobile machine includes a boom assembly with a first end and a second end, an arm assembly having a first end coupled to the boom, and a second end, and a contactor assembly coupled to the second end of the arm assembly. The rail connector…
In one instance, disclosed herein is an engine system, comprising: an engine comprising a plurality of engine cylinders; and a controller operative to: control a respective ignition timing for each engine cylinder of the plurality of engine cylinders; detect an increase of a knock intensity of the…
A system and method for venting gaseous fuel from an engine of an engine system are described. The engine system includes multiple vent valves that allow a controller of the engine system to vent different volumes of a fuel feed line that deliver the fuel to the engine. An engine purge controller…
A power delivery control apparatus for work machines that derive propulsion power from electrical power sources during a work task includes data processor circuitry and power controller circuitry. The data processor circuitry is constructed to accept a data set indicating a propulsion power…
An air-fuel ratio control system includes an internal combustion engine configured to combust gaseous fuel, an admission value configured to provide gaseous fuel to the internal combustion engine, and a three-way catalyst connected to the internal combustion engine to receive exhaust formed by…
A remote system for regulating a temperature of an operator cabin of a work machine includes a controller which determines if at least one door and at least one window of the work machine are closed, determines that a current temperature of the operator cabin is outside of a desired temperature…
A method includes applying a first current to a control valve having an actuated state and a resting state, the first current causing the control valve to move from the resting state to the actuated state. The method includes applying a second current that causes the control valve to remain in the…
An ammonia to NOx ratio (ANR) control system includes an internal combustion engine configured to combust fuel, a valve configured to provide the fuel to the internal combustion engine, and a selective catalytic reduction (SCR) catalyst connected to the internal combustion engine to receive exhaust…
An internal combustion engine system is described herein. The system uses a throttle valve at an inlet of a crankcase to control the flowrate of air into the crankcase. The air is used to purge one or more combustible fluids from the crankcase caused from blow-by past one or more piston rings. A…
An engine system includes an intake system having an intake conduit forming an intake passage, and a fuel admission mixer coupled to the intake conduit for fumigation admission of a gaseous fuel. The fuel admission mixer includes a fuel tube forming a feed passage, and a plurality of mixing air…
This disclosure describes systems and methods for monitoring and evaluating energy consumption at a worksite across types of machinery including mobile and stationary machinery as well as across energy types consumed by each of the types of machines. The systems and methods provide for aggregating…
An inert blanket system includes a reformer that produces hydrogen gas and carbon dioxide. The hydrogen gas is separated from the carbon dioxide. The carbon dioxide is ported to a vapor region of a tank to reduce the flammability of the gases in the vapor region of the tank. Excess carbon dioxide…
A microgrid system includes a plurality of energy resource systems, including direct current (DC) energy resource systems and alternating current (AC) energy resource systems, configured to supply power to a microgrid; a plurality of local controllers respectively associated with an energy resource…
A rail connector assembly for connecting a mobile machine to an electrically-conducting rail system includes a boom assembly, a trailing arm assembly, and contactor assembly. The boom assembly includes a main boom and a trailing arm adapter. A first end of the main boom is configured to be coupled…
A system and related methods for fuel pressure monitoring are described herein. The system may include an internal combustion engine, a plurality of fuel injectors, a fuel rail, a rail pressure sensor, and a controller. The plurality of fuel injectors may be configured to inject fuel into the…
Typically, work machines, such as tractors and heavy-duty machinery, require brake cooling systems for maintaining the performance of work machines, especially during high-stress conditions like heavy braking. Common brake cooling systems can waste high amounts of energy. Accordingly, a brake…
A method of securing a work vehicle. A biometric identifier is collected from an operator using a biometric identification device. The biometric identifier is checked against a list of authorised operators. In an event that the operator matches an authorised operator, access is enabled to the work…
A microgrid system includes a plurality of energy resource systems, including direct current (DC) energy resource systems and alternating current (AC) energy resource systems, configured to supply power to a microgrid; a plurality of local controllers respectively associated with an energy resource…
An enclosure, for a battery system, includes first and second casing members, and a pin. The first casing member defines a first base wall, and first sidewalls defining a first mating surface. The first casing member includes a pocket surface defined between the first mating surface and the first…
A method for calibrating a process by which a weight of a material in a dump body of a machine is computed. The method includes acquiring first values correspondingly from one or more strain sensors in an unladen state of the dump body; activating an actuator to push the dump body against the…
The present disclosure is directed to systems and methods for adaptive management of a multi-pack battery system. The system includes a battery array including a first battery pack and a second battery pack; and a battery array controller configured to: for each of multiple time points during an…
A handrail assembly for a work machine includes a handrail. The handrail includes an upper handrail portion and a lower handrail portion. The upper handrail portion includes a pair of first members and the lower handrail portion includes a pair of second members. Each second member defines an…
A power system for electric or partially-electric machines or vehicles is described herein. The disclosure includes a fully or partially-electric machine including a machine body and a power system. The machine body includes an engine cavity, and the power system is positioned within the engine…
A capacity indication system is associated with an electric power supply system that includes one or more power delivery segments adapted to provide power to a predetermined number of work machines operating at a worksite. The capacity indication system includes a controller including one or more…
Disclosed is a method of testing and assembling a power system of an electric or partial electric machine, the method including: assembling one or more sub-assemblies of the power system; testing one or more of the one or more sub-assemblies of the power system independently; adjusting one or more…
A work machine cooling system for cooling primary power source cooling fluid for a primary power source may include a primary power source cooling unit and a second power source cooling unit fluidly connected so that primary power source cooling fluid flows from the primary power source through the…
A machine may include a frame and a lift system. The lift system may include a lift arm attached to the frame. The lift arm may be configured to actuate between a raised position and a lowered position. The lift system may include a roller attached to the frame. The machine may include a power unit…