A cabin control valve integrated with solenoid valve comprises solenoid valve which is connected at least one of the ports provided on to cabin control valve. The present invention provides a simple pneumatic or hydraulic circuit for operation of the cabin control valve; efficiently cabin control valve with solenoid valve which is easy to operate.

A haulage vehicle includes a body, a load measurement device that measures a mounted load value of the body, a traveling electric motor, and a travel control device that outputs an electric motor command value, the travel control device sets a backward movement limiting set value to ON when it is determined that the haulage vehicle is in execution of either loading work or dumping work, and sets the backward movement limiting set value to OFF when a forward position signal and an accelerator pedal command value are inputted, an electric motor command value formed of a backward movement limiting command value is outputted to the traveling electric motor when the backward movement limiting set value is ON, and an electric motor command value formed of a normal command value is outputted to the traveling electric motor when the backward movement limiting set value is OFF.

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

A self-leveling single axle dump truck is provided, the truck comprising a frame, a dump body pivotably mounted on the frame, and a propulsion and self-leveling system comprising a single axle supporting the frame at least during motion of the self-leveling single axle dump truck, the single axle comprising at least a first and a second wheel and at least a first electric traction motor for driving the first wheel and a second electric traction motor for driving the second wheel.

A mobile tower system including a tower skid assembly sized to be accommodated on a truck. The tower skid assembly including a skid including one or more ballast compartments, a tower framework fixed to a deck, a tower pivotably coupled to the tower framework, and a hydraulic actuator connected to a top member of the tower to extend the top member a vertical distance relative to a base member of the tower.

A trailer tipper features multi-use tilt sensors for automating leveling and tipping operations. In an example, a computerized method for controlling operation of a trailer tipper is disclosed. The trailer tipper includes a frame at least partially supported relative to a ground surface by a set of outriggers. The trailer tipper further includes a tipping platform that is rotatable relative to the frame about a hinge axis. The computerized method includes a plurality of operations that may be used to at least partially automate leveling and tipping operations.

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

The present invention relates to a construction machine having at least one material receiver that is adjustable by means of at least one hydraulic actuator for unloading, with the required feed pressure for the actuator actuation being able to be provided by a hydraulic circuit of the construction machine and with the feed pressure being able to be limited to a limit pressure by means of at least one pressure limiting device, wherein the construction machine comprises a weighing system for determining the current load weight of the material receiver; and a control for the hydraulic circuit is provided that adapts the limit pressure of the pressure limiting device in dependence on the determined load weight.

A split chassis system includes a first chassis base portion that is configured to house a first component and a second chassis base portion that is configured to house a second component. The second chassis base portion is positioned adjacent the first chassis base portion such that a first chassis coupling member included on the first chassis base portion is coupled to a second chassis coupling member included on the second chassis base portion. The split chassis system further includes a leveling subsystem that is coupled to the first chassis base portion and the second chassis base portion. The leveling subsystem aligns the first chassis base portion and the second chassis base portion such that the first chassis base portion and the second chassis base portion substantially maintain coplanarity when the first chassis coupling member is coupled to the second chassis coupling member.

A tip-over prevention system for dumping vehicles includes a tilt detector operably coupled to one of a cargo body and a chassis of a dumping vehicle. At least a portion of the cargo body is configured to be raised by a piston, and the tilt detector is configured to detect a current tilt. The system includes a fluid release valve placed in fluid communication with the piston which is activated in response to the tilt detector detecting a current tilt that exceeds a preset tilt limit. Activation of the fluid release valve releases a pressure in the piston causing the cargo body of the vehicle to lower.