A wall surface suction-type travel device includes a first travel unit, a second travel unit, a joint mechanism, and an elastic mechanism. The first and second travel units are aligned along a travel direction and are each configured to travel on a wall surface while being suctioned on the wall surface. The joint mechanism couples the first and second travel units together such that the travel units can pivot relative to each other on a pivot axis extending in a direction that is perpendicular both to a wall surface facing direction and the travel direction. The elastic mechanism includes a first end fixed to the first travel unit, a second end fixed to the second travel unit, and an elastic member configured to be elastically deformed when one of the first and second travel units pivots relative to the other travel unit and a distance between the first end and the second end is shortened.

A wall surface suction-type travel device includes a first travel unit, a second travel unit, a joint mechanism, and an elastic mechanism. The first and second travel units are aligned along a travel direction and are each configured to travel on a wall surface while being suctioned on the wall surface. The joint mechanism couples the first and second travel units together such that the travel units can pivot relative to each other on a pivot axis extending in a direction that is perpendicular both to a wall surface facing direction and the travel direction. The elastic mechanism includes a first end fixed to the first travel unit, a second end fixed to the second travel unit, and an elastic member configured to be elastically deformed when one of the first and second travel units pivots relative to the other travel unit and a distance between the first end and the second end is shortened.

A cantilever extension for a primary trailer is provided. The primary trailer includes a frame that extends from a hitch end to a rear end, and a primary trailer deck coupled to the primary trailer frame. The cantilever extension includes a cantilever deck. The cantilever extension is rotatably coupled to the primary trailer frame proximate to the rear end, and the cantilever extension is rotatable between a stow position, wherein the cantilever deck is oriented in a substantially face-to-face relationship with the primary trailer deck, and a deployed position, wherein the cantilever deck is oriented substantially co-planar with, and aft of, the primary trailer deck. The cantilever extension in the deployed position is supported solely via coupling to the primary trailer.

An electronic control unit that is installed on a vehicle connected to a trailer and capable of towing the trailer changes travel control of the vehicle according to a type of the trailer when the trailer is connected to the vehicle.

Implementations described and claimed herein address the foregoing by providing systems and methods for driving notification. In one implementation, a method may include the operations of receiving an indication of a speed of a trailer, determining whether a parameter associated with the speed of the trailer meets a threshold, and activating a notification device based on the determination.

A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.

A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.

A trailer restraining device comprising a portable frame having mounted thereto a tail hook and a king pin receiver that includes at least one of a receiver hydraulic cylinder, a receiver pneumatic cylinder, a receiver electric actuator, and a receiver winch.

A trailer restraining device comprising a portable frame having mounted thereto a tail hook and a king pin receiver that includes at least one of a receiver hydraulic cylinder, a receiver pneumatic cylinder, a receiver electric actuator, and a receiver winch.

A tugger train trailer including a support frame configured as a transport material cart entrained in a trailer train, which has a chassis with at least two wheels, and a lifting device configured to adjust the height of at least part of the support frame relative to the wheels. The lifting device may include at least one rotatable eccentric disc, which is supported on a cam roller. The eccentric disc may be installed on a shaft that is driven in rotation. The cam roller may be mounted on the support frame or a part of the support frame.