This disclosure relates to systems and methods for coordinating and executing in-flight energy transfer events between vehicles. Energy may be transferred from a towing or leading vehicle to a towed or trailing vehicle, from the trailing vehicle to the leading vehicle, or both during the in-flight energy transfer events. The proposed systems may further be configured to coordinate the terms and conditions of a service agreement between the leading and trailing vehicles, coordinate the publication of a service experience rating from a user of the leading and/or trailing vehicle, and/or coordinate the termination of the in-flight charging event by either user.

This disclosure relates to systems and methods for coordinating and executing in-flight energy transfer events between vehicles. Energy may be transferred from a towing or leading vehicle to a towed or trailing vehicle, from the trailing vehicle to the leading vehicle, or both during the in-flight energy transfer events. The proposed systems may further be configured to coordinate the terms and conditions of a service agreement between the leading and trailing vehicles, coordinate the publication of a service experience rating from a user of the leading and/or trailing vehicle, and/or coordinate the termination of the in-flight charging event by either user.

A trailer brake system that generates load-dependent braking forces. Variable trailer load information is used to generate load-dependent control signals which serve to control an electrically-controlled proportional valve. A load sensing valve serves to modify brake command signals in dependence on a control pressure that is regulated by the proportional valve.

A trailer brake system that generates load-dependent braking forces. Variable trailer load information is used to generate load-dependent control signals which serve to control an electrically-controlled proportional valve. A load sensing valve serves to modify brake command signals in dependence on a control pressure that is regulated by the proportional valve.

A rolling soil probe which may be pulled by a tractor or a truck or mounted on a trailer. The rolling soil probe includes a rotatable square wheel having four sides, each of which has a soil probe extending outwardly therefrom.

A drawbar tow hitch assembly for towing a trailer with a ball hitch using a tractor includes a tube that has a passageway extending for having a drawbar of a tractor extended therethrough. A pin is extendable through the tube to engage the drawbar for attaching the tube to the drawbar. A tow ball is removably attached to the tube to facilitate the tractor to tow a trailer with a ball hitch when the tube is positioned on the drawbar. A plurality of nuts is each attached to the tube. A pair of eyebolts is provided and a respective one of the eyebolts is adjustably attachable to the plurality of nuts to engage a tow point on the tractor.

A trailer hitch attachment hold-down device for providing attachment points to a trailer frame has a trailer attachment plate that has a central portion and two side portions and a ratchet tie-down rotatably connected to the trailer attachment plate. In one embodiment the trailer attachment plate is angled downward. In one embodiment the trailer attachment plate is secured to a trailer frame by inserting a trailer ball through a trailer ball opening in the trailer attachment plate. In another embodiment, the trailer attachment plate is secured by using a lower attachment plate and bolts to clamp the trailer frame between the attachment plate and the lower attachment plate. In another embodiment, a standoff attachment bracket is provided that clamps the trailer frame between the lower portion of the bracket and an attachment plate using bolts. A ratchet tie-down is attached to the upper portion of the bracket.

An intelligent system for controlling driving of an aircraft tow tractor by means of combination of voice and vision includes an audio transmission line, a voice recognition system, a visual recognition system, and a vehicle-mounted motion controller. According to the intelligent system, visual recognition is performed based on a belly-mounted anti-collision light on an aircraft, a taxi light, and the visual recognition system on an aircraft tow tractor, and the aircraft tow tractor is intelligently controlled by means of combination of voice recognition and the visual recognition; furthermore, the aircraft tow tractor is intelligently controlled by voices of flight crew via the audio transmission line, safety in a towing process is guaranteed by the visual recognition, and each step in the towing process is performed by means of a cross validation based on the voice recognition and the visual recognition.

An intelligent system for controlling driving of an aircraft tow tractor by means of combination of voice and vision includes an audio transmission line, a voice recognition system, a visual recognition system, and a vehicle-mounted motion controller. According to the intelligent system, visual recognition is performed based on a belly-mounted anti-collision light on an aircraft, a taxi light, and the visual recognition system on an aircraft tow tractor, and the aircraft tow tractor is intelligently controlled by means of combination of voice recognition and the visual recognition; furthermore, the aircraft tow tractor is intelligently controlled by voices of flight crew via the audio transmission line, safety in a towing process is guaranteed by the visual recognition, and each step in the towing process is performed by means of a cross validation based on the voice recognition and the visual recognition.

A trailer frame includes a drawbar and a coupler connected to the drawbar through a pair of flexible and resilient connections operably disposed between the drawbar and the coupler and configured to absorb shock and vibration imparted to the drawbar and the coupler while the trailer is towed.