Abstract: A module panel and method include an exterior housing, at least one heat sink disposed in the housing, a power delivery circuit disposed in the housing and coupled to one side of the at least one heat sink, and a controller circuit disposed in the housing and coupled to an opposite side of the at least one heat sink. The power delivery circuit operates using one or more different voltages than the controller circuit.

Abstract: A mounting system includes a chassis, guide rods, and lifting elements. The guide rods extend from a back wall of the chassis and are suspended above a support platform of the chassis. A first guide rod is spaced a designated height above the support platform to be received within a channel of a module while the module is disposed on the support platform. The first guide rod guides movement of the module towards the back wall. As the module approaches the back wall, a first lifting element engages the module at an angled contact interface to lift the module off the support platform responsive to additional movement of the module towards the back wall. When the module is fully loaded, the module is supported by the back wall, the first lifting element, and/or the first guide rod, and is spaced apart from the support platform by a gap.

Abstract: A modular rack system and method includes a rack having plural electrical interfaces, and plural module panels configured to mate with the electrical interfaces of the rack. The module panels have one or more of a common exterior size or a common exterior shape. At least two of the module panels have different internal electrical components configured to perform different operations. The rack is configured to be conductively coupled with a power delivery system of a vehicle and the module panels are configured to modify electric current prior to the electric current being supplied to the power delivery system of the vehicle.

Abstract: An electrical power delivery system includes a module stack, a conductive bus bar, and one or more energy storage devices. The module stack includes multiple modules stacked side by side along a stack axis. Each of the modules has a respective housing and internal electrical components within the housing. The conductive bus bar is oriented along a plane parallel to the stack axis. The bus bar is mounted along a side of the module stack and electrically connected to one or more of the modules. The one or more energy storage devices are electrically connected to the bus bar and extend from a side of the bus bar facing away from the module stack such that the bus bar is disposed between the one or more energy storage devices and the module stack.

Abstract: An electrical power delivery system includes a conductive plane, multiple electrical energy storage devices, and a support structure. The electrical energy storage devices are mounted to and electrically connected to the conductive plane. The electrical energy storage devices project from a common side of the conductive plane. The support structure is spaced apart from the conductive plane. The support structure engages and at least partially surrounds each of the electrical energy storage devices such that the support structure mechanically supports each of the electrical energy storage devices along at least two support directions that are orthogonal to each other.

Abstract: A method includes reducing automatically a speed of an engine from a first speed value to a second speed value in response to both the first speed value being at or above a first speed threshold value and a rate of change of one or both of (i) engine power and (ii) the engine speed is substantially zero for a designated period.

Abstract: A bus bar includes a load terminal connector comprising a conductive plate that extends from a first edge to an opposite second edge and extends from a third edge to an opposite fourth edge. The third and fourth edges extend from the first edge to the second edge. The plate includes a window opening located between the first and second edges and between the third and fourth edges. The plate also includes a slot extending into the plate from the first edge to the window opening. The plate includes first and second sets of openings configured to receive connections with first and second power terminals of switch packages. The first set of openings and the second set of openings are located on opposite sides of the slot.

Abstract: An assembly may be provided that includes a controller configured to be coupled with at least one blower drive that operates a blower motor to cool resistive elements that dissipate electrical power as heat.

Abstract: A current shaping phase leg bus bar for power electronics systems includes a first terminal connector, a second terminal connector, insulated from the first terminal connector, and a third terminal connector, insulated from the first and second terminal connectors. At least one of the terminal connectors is a current shaping terminal connector that includes one or more layers having a plurality of pre-defined locations for electrical connections, said plurality of pre-defined locations including one or more first locations and a plurality of second locations, and includes one or more gaps within or among its one or more layers, to provide substantially balanced conductive pathways among its one or more first locations and its plurality of second locations.

Abstract: Systems and methods for mitigating occurrences of dynamic avalanche events are presented. An electrical system may include a gate-drive unit electrically coupled to a semiconductor switching device and used to drive the switching device by applying a voltage to a gate terminal of the switching device. The electrical system may also include a controller that indicates the switching device to turn off and determines system parameters in response to the switching device turning-off. The controller may determine an intermediate gate voltage based at least in part on the system parameters and may modify the gate-drive unit configuration to apply the appropriate intermediate gate voltage to the gate terminal. The controller may additionally modify the gate-drive unit configuration to apply a turn-off voltage at the gate terminal subsequent to the application of the intermediate gate voltage.

Abstract: Embodiments of the subject matter disclosed herein relate to controlling engine operating points and power for full throttle command in an off-highway vehicle, such as a diesel electric haul truck, to increase fuel efficiency. In one example, a system includes an engine and a controller. The controller is configured to determine a target engine horsepower and associated target engine speed, command the engine to operate at a first engine speed above the target engine speed, adjust a load placed on the engine to reach the target engine speed, and command the engine to operate at a second engine speed to reach the target engine horsepower.

Abstract: Embodiments of the subject matter disclosed herein relate to controlling engine operating points and power for full throttle command in an off-highway vehicle, such as a diesel electric haul truck, to increase fuel efficiency. In one example, a system includes an engine and a controller. The controller is configured to determine a target engine horsepower and associated target engine speed, command the engine to operate at a first engine speed above the target engine speed, adjust a load placed on the engine to reach the target engine speed, and command the engine to operate at a second engine speed to reach the target engine horsepower.

Abstract: A vehicle electrical power system includes a phase module assembly of a multi-phase inverter. The phase module assembly includes first and second flat laminated busbars extending in orthogonal planes. The phase module assembly also includes one or more transistors that convert direct current into one phase of a multi-phase alternating current of the multi-phase inverter, and to output the phase of the multi-phase alternating current to the load. The phase module assembly also includes one or more capacitors conductively coupled with the internal positive and negative terminal connectors and with the external positive and negative bushings configured to be conductively coupled with the power source of direct current. The assembly can be useful for vehicles because the components of the system are configured to carry large amounts of current in a more reliable and sustainable manner.

Abstract: A phase module assembly includes a first flat laminated busbar elongated along a first direction, including a positive layer, a negative layer, and a load layer that is configured to be conductively coupled with a load. The first flat laminated busbar is conductively coupled to a second flat laminated busbar extending in a plane that is orthogonal to the first direction. The second flat laminated busbar is conductively coupled with a power source of direct current. The phase module assembly also includes one or more switches conductively coupled with internal terminal connectors of the first flat laminated busbar and configured to convert the direct current into one phase of a multi-phase alternating current, and to output the phase to the load. The phase module assembly also includes one or more capacitors mechanically mounted on and conductively coupled with the second flat laminated busbar.

Abstract: A control system includes a current sensor and one or more processors. The current sensor is configured to be disposed onboard a vehicle and to monitor a measured current conducted into a resistor leg of the vehicle. The resistor leg has a braking chopper and one or more resistive elements, and is connected with a traction bus of the vehicle. The one or more processors are configured to receive the measured current from the current sensor and, in response to the measured current differing from an expected current through the resistor leg, the one or more processors are configured to generate a control signal configured to one or more of increase an engine speed of an engine of the vehicle, increase cooling to the one or more resistive elements of the resistor leg, restrict movement of the vehicle, or schedule maintenance for the resistor leg.

Abstract: A method includes selecting a link voltage based on voltage efficiencies of components in an electric drive motor system, and applying the link voltage to an inverter electrically coupled to a drive motor to increase system efficiency.