Abstract: An aftertreatment system includes a dosing module. The aftertreatment system includes a selective catalytic reduction unit disposed fluidly downstream of the dosing module. The aftertreatment system includes a conduit fluidly connecting the dosing module to the selective catalytic reduction unit. The conduit has a coating disposed on a surface thereof. The coating is exposed to exhaust passing through the conduit and to the selective catalytic reduction unit. The coating is configured to capture and deactivate platinum passing through the conduit.

Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.

Abstract: A system, method, and apparatus for decreasing harmful emissions is provided. The system includes an aftertreatment system configured to receive exhaust gas from an engine system; a heater coupled to the aftertreatment system and configured to provide heat; and a controller coupled to the heater. The controller is configured to: determine that the engine system is idling; in response to determining that the engine system is idling, determine whether a value regarding operation of the engine system is greater than a threshold value; in response to determining that the value is greater than the threshold value, determine whether a temperature regarding the aftertreatment system is greater than a threshold temperature; and in response to determining that the temperature of the aftertreatment system is greater than the threshold temperature, at least one of disable or partially disable the heater.

Abstract: A system, apparatus and method for exhaust gas thermal management can employ a homogenous charge compression event in one or more cylinders to increase the output temperature from the cylinder to heat the exhaust gas in response to a thermal management condition associated with operation of the internal combustion engine.

Abstract: Systems, apparatuses, and methods for monitoring a catalyst health parameter are provided. A system includes one or more processing circuits having one or more memory devices coupled to one or more processors. The one or more memory devices store instructions that, when executed by the one or more processors, cause the one or more processors to: receive a temperature of exhaust gas entering the aftertreatment system; determine a catalyst loading based on the temperature; determine a catalyst health notification threshold based on the catalyst loading and an amount of time relating to the catalyst loading; and output a notification indicative of the health notification threshold being met.

Abstract: A computing system is disposed remote from a vehicle and communicably coupled to the vehicle over a network. The computing system includes a communications interface, one or more processors, and memory storing instructions that when executed by the one or more processors, cause the one or more processors to receive a first emissions data packet from a vehicle controller, the first emissions data packet including a plurality of emissions values regarding operation of a vehicle; determine whether a first cumulative emissions value is greater than a threshold value; and responsive to determining that the first cumulative emissions value is greater than the threshold, performing, by the remote computing system, corrective operations.

Abstract: A system, method, and apparatus includes management of engine off coasting during operation of a vehicle. The engine speed is increased and/or fueling of the engine is re-initiated before the engine and driveline are finally engaged when the engine off coasting mode of operation is terminated.

Abstract: A method of controlling vehicle inducement in response to an override request includes transmitting, by a controller, an override request to a remote computing device. The override request includes a fault condition resulting in a vehicle inducement that limits a performance parameter of the vehicle to a first value. The method additionally includes receiving, by the controller, instructions from the remote computing device in response to the override request. The instructions include an inducement calibration including a second value of the performance parameter. The method further includes controlling, by the controller, the vehicle inducement to limit the performance parameter of the vehicle to the second value.

Abstract: High-pressure fuel pumps and systems incorporating the same are disclosed. The fuel pump includes a housing with at least one fluid feed port, a barrel with at least one fluid receiving port, and a clamp to secure the barrel to the housing. The barrel has a first surface configured to contact a second surface of the housing to form a groove. The groove provides fluid communication between the at least one fluid feed port of the housing and the at least one fluid receiving port of the barrel.

Abstract: An electronic control system is configured to control a vehicle operating in a convoy by determining a vehicle motion reference parameter (VMRP) in response to a convoying control input (CCI), determining a braking capability of the vehicle including at least a regenerative braking capability, determining a minimum following distance between the vehicle and a forward vehicle of the convoy based at least in part upon the braking capability, and arbitrating among a plurality of control options including performing a first modification of the VMRP determined to provide operation of the vehicle satisfying the minimum following distance and controlling motion of the vehicle using the first modification of the VMRP, performing a second modification of the VMRP determined to provide improved operating efficiency of the vehicle controlling motion of the vehicle using the second modification of the VMRP, and performing no modification of the VMRP and controlling motion of the vehicle using the VMRP without modificatio

Abstract: A system includes an aftertreatment system and a controller coupled to the aftertreatment system. The controller is configured to generate a spatially resolved model of a catalyst of the aftertreatment system. The controller is further configured to adjust the spatially resolved model based on one or more sensed values from at least one sensor upstream of the one or more portions and at least one sensor downstream of the one or more portions.

Abstract: A mild-hybrid energy storage system architecture is provided, comprising: a battery; an ultracapacitor connected in parallel with the battery; a passive battery pre-charge circuit connected between a terminal of the battery and a DC bus; a battery main contactor connected in parallel with the battery pre-charge circuit between the terminal of the battery and the DC bus; a passive ultracapacitor pre-charge circuit connected between a terminal of the ultracapacitor and the DC bus; an ultracapacitor main contactor connected in parallel with the ultracapacitor pre-charge circuit between the terminal of the ultracapacitor and the DC bus; and a control module configured to independently control operation of the battery pre-charge circuit, the battery main contactor, the ultracapacitor pre-charge circuit and the ultracapacitor main contactor.

Abstract: A system for determining a state of health (SOH) of an energy storage device comprises a controller configured to be coupled to the energy storage device. The controller is configured to determine a current value drawn by or supplied to the energy storage device over a predefined period of time. In response to the current value not satisfying a current threshold, the controller determines a current gain factor and determines an adjusted current value from the determined current value based on the current gain factor. The controller is configured to determine an estimated SOH of the energy storage device based on the adjusted current value, and indicate the estimated SOH on a user interface.

Abstract: A computing system coupled to at least one vehicle includes a processing circuit comprising one or more processors coupled to one or more memory devices storing instructions therein that, when executed by the one or more processors, cause the processing circuit to: obtain, from a third-party remote computing system, first information; receive, from a vehicle, vehicle information comprising a calibration identifier, generate, based on the first information and the vehicle information, custom calibration information; and transmit, over a network, the custom calibration information to the vehicle that replaces at least a portion of the vehicle information stored in at least one vehicle controller of the vehicle.

Abstract: The present disclosure provides a lubrication system comprising: a pump having an inlet in fluid communication with a lubricant source and an outlet; a cooler having an inlet in fluid communication with the outlet of the pump and an outlet; a lubrication filter having an inlet in fluid communication with the outlet of the cooler and an outlet; a first delivery path in fluid communication with the outlet of the lubrication filter, the first delivery path being configured to deliver cooled, filtered lubricant to a bearing system of an engine; and a second delivery path in fluid communication with the outlet of the pump, the second delivery path being configured to deliver uncooled, unfiltered lubricant to piston cooling nozzles of the engine.

Abstract: Powertrains of hybrid electric vehicles, control systems for controlling the powertrains, and methods for controlling the powertrains are disclosed. The powertrain includes an engine, a motor/generator, a battery and a DC bus. The control system is configured to: operate the motor/generator in a first mode when the battery is connected to the DC bus; operate the motor/generator in a second mode when the battery is disconnected from the DC bus, wherein the second mode is a voltage control mode in which the motor/generator controls a voltage of the DC bus; and adjust at least one parameter of the powertrain to assist the motor/generator in controlling the voltage of the DC bus in the second mode.

Abstract: A hybrid powertrain system includes: an engine; a motor/generator (“MG”); a clutch coupled to the engine and the MG; a transmission coupled to the MG; an energy storage system connected to the MG; and a controller coupled to the engine, the MG, the clutch, the transmission and the energy storage system. The controller is configured to initiate an engine stop, allow engine torque and MG torque to reduce to zero or near zero, shift the transmission to a neutral gear, cause the MG to operate in a generator mode, thereby loading the engine to recover kinetic energy from the engine, disengage the clutch to decouple the MG from the engine, increase the speed of the MG to a target speed, and shift the transmission into gear in response to the MG reaching the target speed.

Abstract: A system for charging electric vehicles is disclosed, comprising: vehicle chargers coupled to an electric power grid; and a controller in communication with the chargers and vehicles and configured to execute software to cause the controller to: determine characteristics of each vehicle, the characteristics including a charge capacity of a battery system of each vehicle and a mission schedule; determine characteristics of each charger, the characteristics including a type of each charger and a charging capacity; process the characteristics of each vehicle and each charger to identify charging opportunities for each vehicle over the course of a time period; and perform a peak power optimization analysis to generate a vehicle charging profile configured to activate a minimum number of chargers simultaneously and to minimize downtimes of the plurality of chargers to thereby distribute the power demand from the electric power grid and result in an initial peak power demand.

Abstract: A valve train assembly is provided for modifying a lift of at least one intake valve and/or exhaust valve. The valve train assembly includes at least one tappet that is housed in a rocker housing with at least one rocker lever. The at least one tappet is engaged to an actuator that is operable to change the tappet from a first configuration in which all cam lobe motion is imparted to the rocker lever for opening and closing the intake and/or exhaust valve, to a second configuration in which less than all motion of the cam lobe is transferred to the rocker lever.

Abstract: A resolver excitation output stage amplifier. Disclosed embodiments comprise an amplifier stage and a current protection circuit. The amplifier stage includes one or more amplifier transistors coupled to first and second supply terminals, a timing control terminal and an excitation signal output terminal. The amplifier stage is configured to provide a resolver excitation signal having the excitation frequency at the excitation signal output terminal. The current protection circuit includes one or more protection transistors coupled to the amplifier stage and configured to turn off the one or more transistors of the amplifier stage when current through the one or more transistors of the amplifier stage is greater than a predetermined current value.