Method for coupling a tractor with a semi-trailer and semi-truck with a tractor and a semi-trailer.

A vehicle leveling system has a sensor for sensing a reference state of a vehicle and a level state of the vehicle. The reference state is subtracted from the level state to determine a difference angle. The reference state is absolute flat or other reference angle. A smart device is in communication with the sensor to zero out the difference angle and level the vehicle. The smart devices provide feedback to a user to adjust orientation of the vehicle as to zero out the difference angle and level the vehicle. The feedback can be an audible or human sensory feedback, such as voice or tones. A plurality of jacks is used to level the vehicle by zeroing out the difference angle. The jacks can be controlled by the smart device or sensor. The sensor has a gyroscope providing multiple angles of orientation.

A vehicle leveling system has a sensor for sensing a reference state of a vehicle and a level state of the vehicle. The reference state is subtracted from the level state to determine a difference angle. The reference state is absolute flat or other reference angle. A smart device is in communication with the sensor to zero out the difference angle and level the vehicle. The smart devices provide feedback to a user to adjust orientation of the vehicle as to zero out the difference angle and level the vehicle. The feedback can be an audible or human sensory feedback, such as voice or tones. A plurality of jacks is used to level the vehicle by zeroing out the difference angle. The jacks can be controlled by the smart device or sensor. The sensor has a gyroscope providing multiple angles of orientation.

A recreational vehicle includes a frame, left and right air suspensions, a front jack, a tilt sensor configured to measure lateral and longitudinal tilt data associated with the frame, and a controller. The controller is configured to receive the lateral and longitudinal tilt data to thereby level the frame laterally via operation of the left and right air suspensions and level the frame longitudinally via operation of the left and right air suspensions and the front jack. Methods for performing a leveling operation include utilizing left and right air suspensions of the recreational vehicle in combination with operating a front jack of the recreational vehicle until the recreational vehicle is level along lateral and longitudinal axes.

A recreational vehicle includes a frame, left and right air suspensions, a front jack, a tilt sensor configured to measure lateral and longitudinal tilt data associated with the frame, and a controller. The controller is configured to receive the lateral and longitudinal tilt data to thereby level the frame laterally via operation of the left and right air suspensions and level the frame longitudinally via operation of the left and right air suspensions and the front jack. Methods for performing a leveling operation include utilizing left and right air suspensions of the recreational vehicle in combination with operating a front jack of the recreational vehicle until the recreational vehicle is level along lateral and longitudinal axes.

A trailer landing gear system and handle assembly including a handle having an engagement bracket portion including a plurality of grooves or a plurality of notches. The handle assembly also includes a pivot bracket pivotably secured to the engagement bracket portion, the pivot bracket including a through-bore arranged to receive a shift shaft of a trailer landing gear assembly, such that the pivot bracket is arranged about the shift shaft and can maintain a constant connection with the shift shaft. The handle assembly further includes a pin secured to a proximate end of the shift shaft, the shift shaft having an imaginary rotational axis wherein the plurality of grooves or the plurality of notches are arranged to engage with the pin such that rotation of the handle about the imaginary rotational axis in a first rotational direction generates a rotational motion of the shift shaft in the first rotational direction.

A trailer landing gear system and handle assembly including a handle having an engagement bracket portion including a plurality of grooves or a plurality of notches. The handle assembly also includes a pivot bracket pivotably secured to the engagement bracket portion, the pivot bracket including a through-bore arranged to receive a shift shaft of a trailer landing gear assembly, such that the pivot bracket is arranged about the shift shaft and can maintain a constant connection with the shift shaft. The handle assembly further includes a pin secured to a proximate end of the shift shaft, the shift shaft having an imaginary rotational axis wherein the plurality of grooves or the plurality of notches are arranged to engage with the pin such that rotation of the handle about the imaginary rotational axis in a first rotational direction generates a rotational motion of the shift shaft in the first rotational direction.

A vehicle leveling system includes a jack adapted to be mounted to a vehicle frame without modifying the vehicle frame. In a particular embodiment, the jack includes a first bracket adapted to urge against the bottom and side surfaces of a member of the frame and configured to be fastened to a member of the frame through a manufacturer-provided aperture in the frame. The jack additionally includes a second bracket to couple the first bracket to the jack. In a more particular embodiment, the first bracket includes a horizontal adjustment feature, and the second bracket includes a vertical adjustment feature.

Some embodiments are directed to a power station system that is mobile, able to charge using solar power, able to produce AC and DC current, and/or transportable by being towed such as behind a consumer vehicle. In various embodiments, the system contains a battery that is capable of meeting certain power needs, such as the needs of a jobsite, a medium sized home, etc. The solar power can be derived from a solar panel array that is configurable to generate power in any given environment. The system can also include wheels so that it can be towed, such as a two-axle trailer and a series of outriggers for support and ease of transportation. This unit also can include an inceptor to receive the garnered electricity into a storage device for future uses.

A transportable fold-out at least partial enclosure includes a frame, a stationary platform joined to the frame. A primary platform is joined to one of side edges of the stationary platform, the primary platform having a folded position and an extended position. A wall is joined to at least one of the primary platform or the stationary platform. The transportable fold-out at least partial enclosure also includes a panel removably attached to a portion of at least the stationary platform or the primary platform in the folded position so as to cover at least a majority of an opening formed at least in part by the stationary and/or the primary platform, when the primary platform is in the folded position. At least one leg is of length to support a portion of the rear cover remote from the portion.