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).

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).

The invention relates to a load-carrying vehicle part with a first and a second wheel pair (10, 11), which are suspended in a respective bogie element (20) on each side of a frame member (14), a suspension (15) between each bogie element (20) and the frame member (14) on each side of the vehicle part to manipulate the frame member relative to the respective wheel pairs (10, 11), or support the frame member in a springing manner, each suspension (15) comprises a first and a second rocker arm (26A, 26B), wherein the first rocker arm is located in front of the second rocker arm viewed in the normal forward direction of driving of the vehicle part, that each rocker arm (26A, 26B) with its one end is pivotably in a joint (27, 27) in the frame member (14) and with its other end is pivotably in a joint (28, 28) in the bogie element (20) a first spring leg (25A) and a second spring leg (25B), wherein each spring leg with its one end (30) is articulately fastened to the frame member (14) and with its other end (31) is articulately fastened in a rocker arm (26A, 26B), a motion conversion arrangement (29) capable of converting a rotary motion in a joint (27, 28) for one of the rocker arms (26A, 26B) to a forward and backward translation motion.

The invention relates to a load-carrying vehicle part with a first and a second wheel pair (10, 11), which are suspended in a respective bogie element (20) on each side of a frame member (14), a suspension (15) between each bogie element (20) and the frame member (14) on each side of the vehicle part to manipulate the frame member relative to the respective wheel pairs (10, 11), or support the frame member in a springing manner, each suspension (15) comprises a first and a second rocker arm (26A, 26B), wherein the first rocker arm is located in front of the second rocker arm viewed in the normal forward direction of driving of the vehicle part, that each rocker arm (26A, 26B) with its one end is pivotably in a joint (27, 27) in the frame member (14) and with its other end is pivotably in a joint (28, 28) in the bogie element (20) a first spring leg (25A) and a second spring leg (25B), wherein each spring leg with its one end (30) is articulately fastened to the frame member (14) and with its other end (31) is articulately fastened in a rocker arm (26A, 26B), a motion conversion arrangement (29) capable of converting a rotary motion in a joint (27, 28) for one of the rocker arms (26A, 26B) to a forward and backward translation motion.

A trailer system with a modular design is provided for the transport of tiny homes. The system comprises a front hitch assembly to connect to a suitable towing or transport vehicle, and a rear axle assembly designed to carry the weight of a tiny home. The trailer bed portion of the trailer system is the tiny house foundation adapted to connect with the front hitch and rear axle assemblies in a lowboy configuration. Each of the front hitch and rear axle assemblies have pegs that can be secured into channels formed into the end walls (e.g. slots/cavities) or alongside walls (e.g. grooves) of the foundation. Once inserted into the channels, the pegs can be secured to the foundation using a securing means (e.g. locking pins). After transport of the tiny home, the front hitch and rear axle assemblies can be connected to each for transport to another location.

A gearbox brake trailer apparatus for safe downhill towing includes a frame having a front end, a left side, a right side, and a rear end. The front end has a trailer hookup configured to selectively engage a trailer hitch of a truck. A trailer deck is coupled to the frame. Each of a plurality of wheel pairs has an axle rotatably coupled between the left side and the right side of the frame and a pair of tires coupled to the axle. A gearbox is coupled to the frame and has a wiring harness configured to selectively engage with an electrical control plug of the truck. A drive linkage is coupled to the gearbox and is in operational communication with the gearbox and with the axle of a front most wheel pair of the plurality of wheel pairs to brake the rotation of the front most wheel pair.

A gearbox brake trailer apparatus for safe downhill towing includes a frame having a front end, a left side, a right side, and a rear end. The front end has a trailer hookup configured to selectively engage a trailer hitch of a truck. A trailer deck is coupled to the frame. Each of a plurality of wheel pairs has an axle rotatably coupled between the left side and the right side of the frame and a pair of tires coupled to the axle. A gearbox is coupled to the frame and has a wiring harness configured to selectively engage with an electrical control plug of the truck. A drive linkage is coupled to the gearbox and is in operational communication with the gearbox and with the axle of a front most wheel pair of the plurality of wheel pairs to brake the rotation of the front most wheel pair.

An implement drive system is provided for an implement towed by a prime mover vehicle in a work vehicle train. The system includes an axle arrangement and an auxiliary power unit. The auxiliary power unit includes an electric motor; a planetary gear set receiving rotational input from the electric motor and providing a rotational output with a decreased rotational speed and an increased torque relative to the rotational input; and a disconnect device having an output configured to be coupled to the axle arrangement. The disconnect device is movable to a first position in which the disconnect device transfers the rotational output from the planetary gear set to the axle arrangement such the rotational input drives the wheels of the implement. The disconnect device is movable to a second position in which the disconnect device decouples the axle arrangement from the rotational input of the electric motor.

An implement drive system is provided for an implement towed by a prime mover vehicle in a work vehicle train. The system includes an axle arrangement and an auxiliary power unit. The auxiliary power unit includes an electric motor; a planetary gear set receiving rotational input from the electric motor and providing a rotational output with a decreased rotational speed and an increased torque relative to the rotational input; and a disconnect device having an output configured to be coupled to the axle arrangement. The disconnect device is movable to a first position in which the disconnect device transfers the rotational output from the planetary gear set to the axle arrangement such the rotational input drives the wheels of the implement. The disconnect device is movable to a second position in which the disconnect device decouples the axle arrangement from the rotational input of the electric motor.

The present invention discloses a turbine fracturing semi-trailer, the turbine fracturing semi-trailer including a semi-trailer body, a turbine engine, a reduction gearbox, a power connection device and a plunger pump, wherein the turbine engine, the reduction gearbox, the power connection device and the plunger pump are disposed on the semi-trailer body, the output end of the turbine engine is connected to the reduction gearbox, the reduction gearbox and the plunger pump are connected through the power connection device in a transmission way. Beneficial effects: A transmission output center line of the turbine engine, a transmission input center line of the reduction gearbox, a transmission output center line of the reduction gearbox, a transmission input center line of the plunger pump, an exhaust output center line of the turbine engine, and an exhaust input center line of the exhaust piping are set in a straight line to avoid excessive transmission loss, thus ensuring efficient transmission performance. The semi-trailer is small in size, with low weight, low use cost, and low risk of failure.