Abstract: A system for an engine comprises a component manufactured via additive manufacturing. The component includes a first material with a first contraction rate. An insert is disposed in the component and comprises a second material with a second contraction rate that is lower than the first contraction rate. When the component and the insert are exposed to a temperature suitable for sintering, the component contracts around the insert, thereby coupling the insert and the component.

Abstract: A turbocharger housing includes a first fluid passage and a second fluid passage. The first fluid passage includes an exhaust gas inlet, a volute, and an exhaust gas outlet. The volute extends from the exhaust gas inlet in a circumferential direction relative to a central axis of the exhaust gas outlet. The second fluid passage extends parallel to the first fluid passage between the exhaust gas inlet and the exhaust gas outlet. The second fluid passage includes an outlet opening that is offset from the exhaust gas outlet.

Abstract: Method and system for detecting a high friction within a flow control device of a fuel system are disclosed. For example, the method includes receiving a service test sequence to execute a service test, performing, in response to receiving the service test sequence, the service test to generate test data, the service test including a first test cycle with a first dither level and a second test cycle with a second dither level, wherein the second dither level is different from the first dither level. The method further includes determining whether a performance difference between the first test cycle and the second test cycle exceeds a predetermined threshold based on the test data and detecting, in response to determining that the performance difference exceeds the predetermined threshold, a presence of high friction within the flow control device.

Abstract: In some implementations, a method may include obtaining target fault data indicating a preselected fault for a vehicle having a hydrogen source. In addition, the method may include obtaining vehicle fault data indicating a fault of the vehicle. The method may include identifying a match between the fault and the preselected fault. Moreover, the method may include purging, in response to the identifying the match, hydrogen from the hydrogen source so as to reduce consequences of a battery thermal event by reducing the likelihood of a hydrogen-fueled fire.

Abstract: A controller-configurable input signal conditioning (C-CISC) circuit includes an input node, a first switch, a second switch, and a multiplexer which are operatively coupled with an output pin of a microcontroller. First and second signal conditioning branches of the C-CISC circuit are operatively coupled with an input node and a sensor signal input pin of the microcontroller controller via a first input and a second input of a multiplexer. The C-CISC circuit is configurable in response to a first output of the sensor selection output pin to provide an analog signal input received at the input node to the sensor signal input pin and configurable in response to a second output of the sensor selection output pin to provide a single edge nibble transmission (SENT) signal input received at the input node to the sensor signal input pin.

Abstract: Systems and methods for controlling an aftertreatment system are provided. A method includes: receiving a first input target and a first input value, the first input target and the first input value associated with a first aftertreatment system component; receiving a second input target and a second input value, the second input target and the second input value associated with a second aftertreatment system component; estimating a nitrous oxide value based on at least the first input value and the second input value; determining a first output target based on at least the first input target, the second input target and the nitrous oxide value; and controlling the aftertreatment system based on the first output target.

Abstract: Systems, apparatuses, and methods for controlling a transmission and other systems and components based on operation of an auxiliary braking system for a vehicle are disclosed. A controller includes one or more processing circuits, and is configured to: receive data regarding operation of an auxiliary brake system of the vehicle; determine an auxiliary brake fault condition based on the received data regarding operation of the auxiliary brake system; determine that a vehicle speed is greater than a requested vehicle speed; and control a transmission to downshift at least one setting relative to a current transmission setting.

Abstract: A power converter apparatus includes a parent circuit board including a first surface, a second surface, and a thermal conductor core disposed intermediate the first surface and the second surface. A first child circuit is board mounted on the parent circuit board. A first plurality of power switches are operatively coupled with the first child circuit board. A second child circuit is board operatively coupled with the parent circuit board. A second plurality of power switches are operatively coupled with the second child circuit board. A first heat transfer circuit includes a first set of conductors thermally conductively coupling the first plurality of power switches with the thermal conductor core. A second heat transfer circuit includes a second set of conductors thermally conductively coupling the second plurality of power switches with the thermal conductor core.

Abstract: The present disclosure relates to engines with multiple cylinder banks. Systems and methods are disclosed that relate to engine operations that balance the output from the cylinder banks to improve engine health and performance.

Abstract: A piston head includes a piston head lower portion and a piston head upper portion coupled to the piston head lower portion. The piston head upper portion includes an end wall, an outer wall, and an inner wall. The end wall includes, an outer portion and an inner portion, angled with respect to the outer portion. The outer wall extends axially away from the end wall in a first direction. The inner wall extends axially away from the end wall in the first direction and is separated from the outer wall such that an outer chamber is defined between the outer wall and the inner wall and an inner chamber is defined within the inner wall. The inner wall defines one or more openings fluidly connecting the inner chamber to the outer chamber. An axis of each of the one or more openings is substantially parallel to the inner portion.

Abstract: An engine system for a vehicle includes a controller coupled to an engine, an electric machine, a battery, a series of user input devices, and a transmission. The controller is configured to perform operations. The operations include receiving information regarding the state of operation of the vehicle, further including information regarding vehicle speed, transmission speed, and drive demand power. The controller is further configured to calculate a fuel saved ratio representing efficiency of the engine system and determine how to maximize the efficiency of the system. The operations of the controller further include operating the components of the engine system in order to maximize system efficiency and fuel savings.

Abstract: Systems and methods for transmission gear shift management of a vehicle having cooperative adaptive cruise control (CACC) are provided. A method includes: enabling an at least partially autonomous driving level for a vehicle via a cooperative adaptive cruise control (CACC) mode of the vehicle; determining one or more CACC vehicle states; updating a predictive gear shifting circuit based on the one or more CACC vehicle states; determining a transmission shift event based on the updated predictive gear shifting circuit; and implementing the determined transmission shift event.

Abstract: A fuel injector for fuel is provided. The fuel injector includes a valve assembly with an actuator and a valve coupled to the actuator. The valve includes a valve seat and a plunger radially sealed to the valve seat and movable in the valve seat to selectively open and close an inlet extending through a sidewall of the valve seat.

Abstract: A computing system includes one or more processors and one or more memory devices storing instructions. The one or more processors perform operations according to the instructions. The operations include receiving an available gear value regarding a number of available gears of a transmission. The operations include responsive to the available gear value being above a predetermined gear value threshold, receiving a first efficiency value corresponding to a current gear and a second efficiency value corresponding to a first gear of the number of available gears of the transmission. The operations include implementing a gear shift that causes the transmission to operate at the first gear, responsive to the second efficiency value being below the first efficiency value.

Abstract: A method for optimizing operation of a fleet of vehicles includes providing an optimization network including a plurality of nodes and a plurality of connections therebetween. The nodes define all potential destinations in the network for freight delivery or pickup. The connections define all potential sequences of nodes traversable over the network. The method determines a pre-optimization simulation matrix including a plurality of sets of energy expenditures for traversing respective ones of each of the connections. Each of the plurality of sets of energy expenditures accounts for permutations of a plurality of different vehicle powertrains present in a fleet of vehicles. The method performs an optimization using the pre-optimization simulation matrix, fleet information indicating locations and energy states of a plurality of vehicles in the vehicle fleet, mission information indicating a pickup or delivery destination for a plurality of items of freight, and a fleet optimization objective.

Abstract: An internal combustion engine piston includes a crown defining an annular cavity between an inner wall and an outer wall. The annular cavity includes an opening opposite a top wall and at least partially defines a cooling gallery. A cover plate is assembled with the annular cavity and the piston crown to form a lower boundary of the cooling gallery and thereby enclose the cooling gallery within the piston crown. The cover plate includes a plurality of crests separated by a plurality of troughs wherein the crests and troughs are arranged to create a variable volume profile of the cooling gallery. The variable volume profile of the cooling gallery can increase or decrease annularly around the piston based on a cross-sectional shape of the cover plate. Optionally, the cover plate includes one or more inlets or outlets for exchanging fluid in the cooling gallery.

Abstract: Systems and apparatuses include a vehicle system actuator, a sensor array associated with the vehicle system actuator, a vehicle controller, and a remote processing circuit. The vehicle controller is structured to receive sensor information from the sensor array, determine local control parameters based on the sensor information using a control scheme, provide local actuation information to actuators based on the local control parameters, and transmit the sensor information via a telematics device. The remote processing circuit is structured to receive the sensor information from the telematics device, determine remote control parameters based on the sensor information using the control scheme, and perform diagnostics using the remote control parameters.

Abstract: Systems, apparatuses, and methods for controlling a transmission and other systems and components based on operation of an auxiliary braking system for a vehicle are disclosed. A controller includes one or more processing circuits, and is configured to: receive data regarding operation of an auxiliary brake system of the vehicle; determine an auxiliary brake fault condition based on the received data regarding operation of the auxiliary brake system; determine that a vehicle speed is greater than a requested vehicle speed; and control a transmission to downshift at least one setting relative to a current transmission setting.

Abstract: A conductor assembly includes a first spacer, a second spacer, a plurality of bus bars positioned between the first spacer and the second spacer, and a plurality of fasteners coupling the first spacer and the second spacer. The first spacer is shaped to receive the plurality of bus bars.

Abstract: The present disclosure generally relates to systems and methods for controlling a thermal management system of a fuel cell powertrain system.