One or more flatbed trailers, load placement devices and/or collapsible bulkheads are provided. The flatbed trailer may have a lowered center of gravity and may comprise a plurality of load placement devices and a collapsible and/or crushable bulkhead disposed on a deck of the flatbed trailer to provide improved load transportation safety.

A travel trailer generator mounting system for enabling installation of a permanent onboard generator system onto a travel trailer may include a generator mount designed to engage with the travel trailer frame. The generator mount may include a top planar surface with a generator storage portion extending downward therefrom, the generator storage portion sized to accommodate mounting of a generator therein; a front lip extending substantially perpendicularly upwards from a front edge of the top planar surface; and a rear lip extending substantially perpendicularly upwards from a rear edge of the top planar surface. The front lip and the rear lip may be configured to engage with cross members on the travel trailer for mounting of the generator mount to the travel trailer.

A travel trailer generator mounting system for enabling installation of a permanent onboard generator system onto a travel trailer may include a generator mount designed to engage with the travel trailer frame. The generator mount may include a top planar surface with a generator storage portion extending downward therefrom, the generator storage portion sized to accommodate mounting of a generator therein; a front lip extending substantially perpendicularly upwards from a front edge of the top planar surface; and a rear lip extending substantially perpendicularly upwards from a rear edge of the top planar surface. The front lip and the rear lip may be configured to engage with cross members on the travel trailer for mounting of the generator mount to the travel trailer.

A cable system for a truck trailer for reducing the number and/or size of wiring in a commercial trailer cable system from seven to four, three, or two, while also facilitating bidirectional communication with all connected electronic devices in the trailer. The cable system has a ground cable, a power cable, and zero, one or two additional communication cables that may carry analog and/or digital communications between the control circuit and components of the trailer such as turn signal lamps, brake lamps, backup cameras, environmental sensors, and the like. A transformer for increasing the voltage on the power cable is disclosed, allowing the power and ground cables to be smaller without reducing power delivered to the trailer.

A cable system for a truck trailer for reducing the number and/or size of wiring in a commercial trailer cable system from seven to four, three, or two, while also facilitating bidirectional communication with all connected electronic devices in the trailer. The cable system has a ground cable, a power cable, and zero, one or two additional communication cables that may carry analog and/or digital communications between the control circuit and components of the trailer such as turn signal lamps, brake lamps, backup cameras, environmental sensors, and the like. A transformer for increasing the voltage on the power cable is disclosed, allowing the power and ground cables to be smaller without reducing power delivered to the trailer.

A rail assembly for a flatbed trailer, including: a side rail configured generally as C-shaped, the side rail including a first top horizontal face, a first side vertical face, and a first bottom horizontal face; and a rub rail coupled to the side rail, the rub rail configured generally as C-shaped, the rub rail including a second top horizontal face, a second side vertical face, and a second bottom horizontal face, wherein the second top horizontal face is coupled to the second side vertical face by a top chamfer, wherein the top chamfer is diagonally connected to the second top horizontal face and the second side vertical face, wherein the second bottom horizontal face is coupled to the second side vertical face by a bottom chamfer, wherein the bottom chamfer is diagonally connected to the second side vertical face and the second bottom horizontal face.

A rail assembly for a flatbed trailer, including: a side rail configured generally as C-shaped, the side rail including a first top horizontal face, a first side vertical face, and a first bottom horizontal face; and a rub rail coupled to the side rail, the rub rail configured generally as C-shaped, the rub rail including a second top horizontal face, a second side vertical face, and a second bottom horizontal face, wherein the second top horizontal face is coupled to the second side vertical face by a top chamfer, wherein the top chamfer is diagonally connected to the second top horizontal face and the second side vertical face, wherein the second bottom horizontal face is coupled to the second side vertical face by a bottom chamfer, wherein the bottom chamfer is diagonally connected to the second side vertical face and the second bottom horizontal face.

An axle for utility vehicles includes a first wheel end and a second wheel end arranged opposite each other and rotatably on the axle, a recovery device connected to the first wheel end configured to recover rotational energy of the first wheel end, a braking device configured to decelerate the second wheel end, and a control unit configured to determine information on a deceleration of the first wheel end which results from the recovery and/or a deceleration of the second wheel end, and to control the braking device and/or the recovery device such that the deceleration of the first wheel end and the deceleration of the second wheel end are matched to each other, wherein the control unit is configured to determine the information on the deceleration of the first wheel end based on the recovered rotational energy.

Methods, apparatus, systems, and articles of manufacture for trailers with adjustable batteries are disclosed herein. An example trailer disclosed herein includes a platform, a battery disposed at a first location relative to the platform, a drive to move the battery relative to the platform, and a controller to determine a first load distribution on the platform and in response to determining the first load distribution on the platform does not satisfy a first threshold, adjust a position of the battery, via the drive, to a second location relative to the platform.

Methods, apparatus, systems, and articles of manufacture for trailers with adjustable batteries are disclosed herein. An example trailer disclosed herein includes a platform, a battery disposed at a first location relative to the platform, a drive to move the battery relative to the platform, and a controller to determine a first load distribution on the platform and in response to determining the first load distribution on the platform does not satisfy a first threshold, adjust a position of the battery, via the drive, to a second location relative to the platform.