A cylindrical cargo container is formed of longitudinal, extruded arcuate panels joined pairwise at abutting edges to form a cylindrical tube. The container is mountable on a separate wheeled chassis to form a semi-trailer or railcar, or a chassis integral with a truck. The container may be substantially smooth on inner and outer surfaces, to provide optimal aerodynamics and freedom of motion of cargo within the container. The panels may have inner and outer skins bridged by multiple webs. Such structure may provide protection from punctures to the outer or inner skins. The container is useful to transport waste including municipal or industrial waste, and may be part of a tipper trailer. The container, trailer, truck, or railcar may be used with a compactor for compacting the waste within the container.

A king pin coupler assembly of a fifth wheel coupling. A coupler plate has a king pin aperture therein. A king pin is positioned to extend axially through the king pin aperture of the coupler plate. The king pin has a first portion with a neck for engaging a fifth wheel of the fifth wheel coupling, the first portion extending to a first side of the coupler plate. The king pin has a second portion on a second side of the coupler plate and welded to the coupler plate. A shielding apparatus is secured to one or both of the king pin and the coupler plate. The shielding apparatus includes a cover sealed to the first side of the coupler plate. The cover extends over the first portion of the king pin to shield the first portion of the king pin during liquid immersion of the king pin coupler assembly.

A system and method for operation of an autonomous vehicle (AV) yard truck is provided. A processor facilitates autonomous movement of the AV yard truck, and connection to and disconnection from trailers. A plurality of sensors are interconnected with the processor that sense terrain/objects and assist in automatically connecting/disconnecting trailers. A server, interconnected, wirelessly with the processor, that tracks movement of the truck around and determines locations for trailer connection and disconnection. A door station unlatches/opens rear doors of the trailer when adjacent thereto, securing them in an opened position via clamps, etc. The system computes a height of the trailer, and/or if landing gear of the trailer is on the ground and interoperates with the fifth wheel to change height, and whether docking is safe, allowing a user to take manual control, and optimum charge time(s). Reversing sensors/safety, automated chocking, and intermodal container organization are also provided.

A method detects and prevents stall of a drive motor of an autonomous electric tractor. A stall detector receives, at intervals, a motor current value from a drive circuit of the autonomous electric tractor, determines when the motor current value reaches or exceeds a first current threshold and applies brakes, inhibits a throttle controlling the drive motor, and sets a motor stall flag. A method determines a height above the ground of a landing gear of a trailer coupled with a tractor. A lift detector controls a hydraulic pump to pump a hydraulic fluid into a chamber of a piston coupled to a fifth wheel of the tractor to raise the fifth wheel. The lift detector senses, at intervals as the fifth wheel rises, a pressure value of the hydraulic fluid in the chamber and processes the pressure value to determine when the landing gear is lifted off the ground.

The vehicle system can include: a set of vehicle couplings (e.g., a tractor interface, a trailer interface, etc.); a chassis, a battery pack, an electric powertrain, a sensor suite, and a controller. The modular vehicle system can optionally include landing gear, a suspension, and any other suitable set of components. The vehicle system functions to structurally support and/or tow a trailer—such as a Class 8 semi-trailer—and/or to augment/supplement a tractor propulsive capability (e.g., via a diesel/combustion engine) with a supplementary electric drive axle(s).

A system for assisting in aligning a vehicle for hitching with a trailer includes a first camera and a second camera and outputting image data to the rear of the vehicle and a controller identifying at least one of the trailer or a coupling feature of the trailer within the image data and assigning a trailer type to the trailer identified within the image data, the trailer type including a first trailer type and a second trailer type. The controller further causes a portion of the image data to be presented on a display within the vehicle, the portion of the image data corresponding with the first camera in response to the trailer being assigned the first trailer type and corresponding with the second camera in response to the trailer being assigned the second trailer type.

A kingpin for connecting a trailer to a tractor, the kingpin comprising: an integrated sensor arranged to measure a force applied to the kingpin, and a data connection arranged to transmit data of a force measured by the integrated sensor.

A fifth wheel hitch plate arrangement includes a mounting portion configured to be coupled to a vehicle frame, a kingpin throat configured to receive a kingpin of a towed vehicle therein, and a body portion supported by the mounting portion, the body portion including an upper surface configured to abut a mating surface of the towed vehicle, a bottom surface opposite the upper surface, and a plurality of reliefs extending from the upper surface toward the bottom surface, wherein the plurality of reliefs are closed at a bottom end thereof, and wherein the plurality of reliefs are spaced about the upper surface in a repeating pattern.

A king pin adaptor is provided for allowing a king pin, intended to connect to a fifth wheel hitch, to be attachable to a ball hitch assembly. A hitch assembly is provided having a plurality of vertical and longitudinal positions for securing a ball member to allow for greater flexibility in attaching to various towed structures. The king pin adaptor and hitch assembly may be used alone or together as components of a towing system for towing a trailer with a king pin or ball mount.

A trailer coupler has a fixed frame portion that is connected to a moving frame portion with link arms. The link arms are attached to torsion components that are affixed to both the fixed frame portion and moving frame portion with the moving frame portion located between ends of the fixed frame portion. The moving frame portion has a resting position where the torsion components are at rest and a displaced position where external forces have caused the torsion components to move. The moving frame portion can be displaced through rotation or vertical movement by external forces.