Abstract: Vehicle systems and components are set forth, which aim to reduce rolling friction caused in part by the contact between the vehicle's tires and the ground surface over which the vehicle is traversing. These systems and/or components thereof may increase the overall fuel efficiency of a vehicle. In the examples provided, the systems and/or components change the tread contact patch of one or more tires during movement of the vehicle.

Abstract: A cable or conduit retention system includes a first clamp with a first body coupleable to a second body by a hinge and a latch. The first body includes a retention clip extending from an edge around a cable or conduit receiving channel in the first body, with the cable or conduit receiving channel and the retention clip having a combined arc angle greater than 180 degrees to retain a cable or conduit in the cable or conduit receiving channel prior to the second body being coupled to the first body during assembly. The first body may also include integral fasteners for engaging holes in a mounting support coupled to a vehicle. A second clamp may include integral fasteners for engaging the first clamp in a stacking arrangement. The second body of the first clamp includes an alignment protrusion for engaging an alignment recess in the second clamp to assist in preventing movement between the clamps in the stacked arrangement.

Abstract: A heavy-duty truck has a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system includes a close-coupled selective catalytic reduction system and an underbody selective catalytic reduction system, a first NOx sensor upstream of the close-coupled selective catalytic reduction system, a second NOx sensor between the two selective catalytic reduction systems, and a third NOx sensor downstream of the underbody selective catalytic reduction system. The engine control unit may perform methods allowing intrusive diagnostics to be performed on exhaust gas NOx sensors using the selective catalytic reduction systems during normal operation of the heavy-duty truck.

Abstract: Systems and methods for determining a position of a vehicle driver and adjusting one or more digital mirrors based on the determined position. According to examples, the position of the driver's eyes and/or head are sensed by one or more driver position sensors and determined by a driver position processor. An external camera captures images external to the vehicle, and a video processor crops, zooms, pans, and/or otherwise adjusts the images to be displayed based on the position of the driver's eyes and/or head.

Abstract: The present disclosure relates to systems and methods of automatically distributing powertrain demand between tandem drive axles in a tandem drive axle system for balanced tire wear between the tandem drive axles. Examples described herein analyze input signals collected from various vehicle sensors about operating conditions of the front and back tandem drive axles, and automatically bias a distribution of torque demand between the front and back tandem drive axles to correct for asymmetric wear based on known normal wear of the tires under like operating conditions.

Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.

Abstract: A battery control component of an electric vehicle may limit charging of a battery on the electric vehicle to a target state of charge (SOC), such as to reserve battery capacity for regenerative braking during downgrades. A computing device associated with the vehicle may calculate an estimated gradient profile and/or an estimated total energy consumption of a predicted upcoming route of the vehicle based on one or more data items, such as GPS data, altitude data, and/or map data. The computing device may determine a target SOC based on the estimated gradient profile. The computing device may determine a confidence factor associated with the estimated gradient profile, where the confidence factor depends on the quantity of data items used to calculate the estimated gradient profile. The computing device may adjust the target SOC based on the confidence factor.

Abstract: A vehicle, including: a windshield; and a first wiper arm including a first segment and a second segment attached to the first segment, wherein the first wiper arm is operatively attached to the vehicle at a first side of the vehicle such that the first wiper arm is rotatable about a first axis of rotation between at least an outer position and an inner position, and wherein the first wiper arm is shaped such that, when the first wiper arm is in the outer position, the first segment extends from the first axis of rotation away from a width center of the vehicle, and the second segment extends from the first segment at least partly along a height direction of the vehicle.

Abstract: The present disclosure describes systems and methods for automated determination of certain physical characteristics of a trailer in a tractor-trailer truck and positional arrangement between the trailer and tractor of the truck. The technology may include a camera mounted on the tractor to acquire an image of at least a rear portion of the trailer; a sensor configured to acquire information relating to the trailer angle; a processor configured to determine a position of the rear portion of the trailer in the image, and determine the length of the trailer based at least in part on the determined position of the rear portion of the trailer in the image and the information relating to the trailer angle.

Abstract: The present disclosure relates to systems and methods of automatically distributing powertrain demand between tandem drive axles in a tandem drive axle system for balanced tire wear between the tandem drive axles. Examples described herein analyze input signals collected from various vehicle sensors about operating conditions of the front and back tandem drive axles, and automatically bias a distribution of torque demand between the front and back tandem drive axles to correct for asymmetric wear based on known normal wear of the tires under like operating conditions.

Abstract: Generally described, an articulated wheel fairing system for a vehicle having a steering system with a neutral steering input and a non-neutral steering input is provided. The articulated wheel fairing system provides clearance to the steer tire and wheel of the vehicle during non-neutral steering input, such as when the vehicle is turning at slower road speeds. The wheel fairing system generally includes an articulating fairing panel configured to cover at least a portion of the steer wheel, where the fairing panel movable from a first position adjacent to the steer wheel, such as when the vehicle is traveling at higher road speeds, to a second position outwardly from the first position. The wheel fairing system includes a mechanical linkage or actuator coupled to the fairing panel and the vehicle and configured to move the frame between the first position and the second position relative to the vehicle.