Abstract: A control system for off-highway battery application powertrain systems that allows the operator to select one or more performance/operating modes. The one or more performance modes may be based on the work that needs to be accomplished using the machine vs. the hours needed before the next charge opportunity. Modes will take typically into consideration battery management system performance maps, Electric motor/inverter performance maps, pump performance maps and other systems communicating with the powertrain system. The operator is in control to optimize refill and/or next battery charge. The operator may have the option to select performance modes based on excavator performance vs. battery life. Remaining time and warning messages may be periodically sent to the operator based on the performance mode selected and current state of charge.

Abstract: The present disclosure relates to systems and methods of detecting a hydrogen leak in a system comprising a hydrogen storage system storing hydrogen, a temperature sensor, a pressure sensor, a hydrogen storage system controller, and a notification system. The hydrogen storage system controller is configured to measure thermodynamic properties of the hydrogen in the hydrogen storage system, and the thermodynamic properties of the hydrogen are used to determine if there is a hydrogen leak in the fuel cell system. The notification system alerts a user of any detected hydrogen leak.

Abstract: A stator for a rotating electrical machine is disclosed. The stator comprises a plurality of stator teeth wound with stator windings. The stator windings on each tooth comprise at least two parallel conductors which are wound as separate coils. The coils on one tooth are transpose connected with the coils on another tooth. This may help to reduce or eliminate circulating currents, while at the same time minimizing AC losses.

Abstract: A method for controlling air and fuel supply to an engine of a machine includes: detecting, by a processing circuit, a change in a loading condition on the engine of the machine based on use of an implement system of the machine; and providing, by the processing circuit, a command to (i) a fueling system of the machine to increase an amount of fuel provided to the engine by the fueling system and (ii) an air handling system of the machine to increase at least one of (a) an amount of air or (b) a boost pressure of the air provided to the engine by the air handling system in response to an increase in the loading condition.

Abstract: A thermostat housing assembly includes a thermostat housing and a valve assembly. The thermostat housing includes an inlet portion having a first port, a radiator outlet portion having a second port, a radiator bypass outlet portion having a third port, and a housing divider portion. The housing divider portion defines a first aperture in selective fluid providing communication from the first port to the third port and a second aperture in fluid providing communication from the first port to the third port. The valve assembly is adjustable between a first configuration that prevents fluid providing communication from the first port to the second port and a second configuration that prevents fluid providing communication from the first port to the third port through the first aperture. The third port is in fluid providing communication with the first port through the second aperture when the valve assembly is in the second configuration.

Abstract: Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. Operations to diagnose at least one component include causing an engine to operate through a sequence of a plurality of engine outputs; receiving, from at least one sensor, a first set of sensor data corresponding to a first engine output; diagnosing the at least one component based on the first set of sensor data, the diagnosis indicating a failure type; and causing at least one of the engine or an electric machine coupled to the engine to operate based on the failure type.

Abstract: A camshaft tone wheel, system, and method are provided for determining a rotational position of an internal combustion engine. Sensors detect unique features positioned around the camshaft tone wheel in conjunction with a tooth count on a crankshaft tone wheel, or in conjunction with elapsed time for passage of the unique features during rotation of the camshaft tone wheel, to resolve engine position and enable accurately timed combustion.

Abstract: Systems, methods, and apparatuses for generating a fluid analysis report with key issues to improve vehicle maintenance are provided. A processing circuit is configured to: obtain information regarding a sample of fluid from a vehicle; obtain one or more thresholds according to the type of fluid and the type of the vehicle; adapt the one or more thresholds according to updates regarding the type of fluid from at least one of the plurality of vehicles that corresponds to the type of vehicle; compare at least one value representing the at least one characteristic to the one or more thresholds; determine categories of risk associated with the at least one value responsive to the comparison; and trigger, on a computing device responsive to the determination, a graphical user interface to dynamically render a display comprising at least the categories of risk for recommending at least one action for maintenance.

Abstract: A system includes a powertrain controller operatively coupled with and configured to control operation of a powertrain of a vehicle and for bidirectional communication via a wireless communication path. An optimization engine is configured to determine optimized powertrain operation parameters for the powertrain controller and for bidirectional communication via a second communication path.

Abstract: In an implementation, an apparatus includes an enclosure and an energy module (1) included in the enclosure and (2) that includes a battery pack configured to provide an initial voltage. The apparatus further includes a conversion module (1) included in the enclosure and (2) that includes a high voltage DC/DC converter and an ultra-high voltage DC/DC converter. The conversion module is configured to receive the initial voltage and output a converted voltage using the high voltage DC/DC converter and the ultra-high voltage DC/DC converter.

Abstract: A geartrain assembly includes a first gear, a second gear, and a third gear. A linkage connects the first gear and the second gear, and defines an assembly location of the third gear to connect the third gear to the first and second gears in a manner that minimizes a backlash in the geartrain assembly.

Abstract: Methods and systems are provided for troubleshooting anomalies in a high-voltage bus system for an electrified vehicle are provided herein. The high-voltage bus system being electrically connected to a plurality of electrical components such that each electrical component in the plurality of electrical components has a similar voltage when the high-voltage bus system is electrified. The method includes detecting individual voltages for each electrical component in the plurality of electrical components using a voltage sensor of each of the electrical components in the plurality of electrical components; determining a baseline voltage for each of the electrical components in the plurality of electrical components, the baseline voltage corresponding to at least a subset of the individual voltages; and comparing any one of the individual voltages to the baseline voltage to determine if that individual voltage is anomalous.

Abstract: Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine and an energy storage device are disclosed. The methods and systems involve obtaining lookahead information and current state information, wherein the lookahead information includes a predicted vehicle speed, and the current state information includes a current state of charge (SOC) for the energy storage device coupled to the electric motor; and determining, based on the lookahead information and the current state information, a target power split between the energy storage device and the engine.

Abstract: A system for controlling a vehicle speed of a vehicle is described. The system comprises a motor, a vehicle speed sensor, a vehicle speed governor, and a controller. The motor is configured to provide an output torque for driving the vehicle. The vehicle speed sensor provides a vehicle speed signal corresponding to the vehicle speed. The vehicle speed governor has a vehicle speed limit for the vehicle, where the vehicle speed governor adjusts the vehicle speed limit according to a desired direction of travel of the vehicle and a load corresponding to the motor. The desired direction of travel is selectable by an operator of the vehicle. The controller is configured to adjust the output torque of the motor according to the vehicle speed limit and the vehicle speed signal.

Abstract: A system of a vehicle includes: a first motor associated with a first controller; a second motor associated with a second controller; a first battery associated with a first battery management system; a second battery associated with a second battery management system; and a master controller coupled to the first controller, the second controller, the first battery management system, and the second battery management system. The master controller is configured to: receive an operating mode for the vehicle and activate the first motor or the second motor and the first battery or the second battery based on the operating mode for the vehicle.

Abstract: A system, method, and apparatus for predicting and controlling tailpipe NOx conversion and ammonia slip based on degradation of an aftertreatment system are provided. A controller is configured to: obtain, from a memory, data regarding the aftertreatment system, the data comprising at least one of an operation time of a catalyst or a number of regeneration events of the catalyst of the aftertreatment system; generate, based on at least one of the operation time or the number of regeneration events, a parameter value representing a degradation or deactivation level of the catalyst; and execute an action based on a comparison between the parameter value and a threshold.

Abstract: An engine system includes an engine, a crankshaft operatively coupled to the engine, a brake assembly, and an actuator assembly. The brake assembly includes a brake disc. The brake disc is coupled to the crankshaft. The actuator assembly includes a brake pad and an actuator. The brake pad is selectively positionable to contact the brake disc. The actuator is configured to selectively position the brake pad to contact the brake disc.

Abstract: A piston for an internal combustion engine comprising a piston body having a crown adjacent a skirt. Any of an outer crown surface of the crown, piston ring grooves in the crown, and/or the crown include a steel H11 alloy and/or a steel H13 alloy. The steel H11 or H13 material is applied in any technique such as a piston crown coating/cladding, fused overlay, powder cladding, welded on an outer crown surface of the crown, and/or included in the crown and/or skirt of a monolithic piston. The steel H11 or H13 material is applied with an additive manufacturing item, applied with a coating, buttering, or other surface modification to facilitate joining to the piston body. The application of the steel H11 or H13 material with a heat treatment to at least the piston crown creates an elevated temperature oxidation resistant high performance piston.

Abstract: The present disclosure generally relates to systems and methods for purging water or gas from a fuel cell system. The fuel cell system may include a multi-phase valve system and/or a separate valve system. The opening and closing of the valve systems for removing gas and water is controlled by a controller.

Abstract: A system includes an exhaust aftertreatment system and a controller including a processor coupled to a memory device storing instructions that, when executed by the at least one processor, cause the controller to perform operations. The operations include receiving sensor data comprising a diesel oxidation catalyst inlet temperature, a selective catalytic reduction system inlet temperature, and exhaust flow data; determining outer loop feedback data based on a target SCR temperature, and the SCR inlet temperature; determining inner loop feedback data based on the outer loop feedback data and the SCR inlet temperature; determining inner loop feedforward data based the outer loop feedback data, the DOC inlet temperature, and the exhaust flow data; determining heater control data based on the inner loop feedback data and the inner loop feedforward data; and causing the heater to operate in a stable manner while maintaining a stead desired temperature target.