A construction vehicle includes a chassis having a front end and a rear end. The construction vehicle also includes an operator cabin supported by the chassis and a hood proximate to the rear end of the chassis. The construction vehicle further includes a hood structure for supporting the hood. The hood structure includes a first frame member coupled to the chassis proximate to the rear end and a second frame member disposed distal to the rear end and proximal to the operator cabin. The second frame member is coupled to the chassis by a mounting assembly. The mounting assembly includes a plate member connected to the second frame member. The mounting assembly also includes a first mounting device connecting a first end of the plate member to the chassis. The mounting assembly further includes a second mounting device connecting a second end of the plate member to the chassis.

Vehicles and methods of operating vehicles are disclosed herein. A vehicle includes a main frame, a work implement, and a control system. The work implement is supported by the main frame and configured to carry a payload in use of the vehicle. The control system is supported by the main frame and configured to control operation of the vehicle. The control system includes a payload measurement system configured to provide payload input indicative of a variable payload carried by the work implement in use of the vehicle and a controller coupled to the payload measurement system.

A method for operating an electric drivetrain of a working machine is provided wherein the drivetrain comprises a work drive with an electric work motor and a travel drive with an electric travel motor and vehicle wheels, wherein the working machine experiences a speed deceleration from the outside that may result in a braking force acting on the vehicle wheels lower than a driving force acting on the vehicle wheels due to a moment of inertia of the travel motor. The method includes supplying the travel motor with a power in a direction opposite to an operating direction of the travel motor in order to reduce a rotational speed of the travel motor, if it is detected in advance using a situation detection that the braking force acting on the vehicle wheels as a result of the speed deceleration is lower than the driving force acting on the vehicle wheels.

A first processor determines a loaded state of a bucket, makes a determination that a traveling apparatus has performed an operation for shifting from a rearward movement state to a state (forward movement or stop) other than the rearward movement state in the loaded state, and calculates a load weight of the bucket from a detection value of a work implement sensor (first hydraulic pressure detectors and a first angle detector) based on the determination.

A work machine includes a mechanical arm. A work implement is coupled to the mechanical arm to receive a load. A hydraulic actuator moves the arm between a lower position and an upper position, wherein a distance between the lower position and the upper position is a travel distance of the mechanical arm. A sensor unit is configured to sense the load in the work implement. A valve is in fluid communication with the hydraulic actuator for supplying a fluid output to the hydraulic actuator. A controller is in communication with the valve and the sensor unit. The controller is configured to transmit a control signal to the valve to adjust the fluid output to the hydraulic actuator. The controller is also configured to adjust the upper position to reduce the travel distance in response to the load being at or above a threshold value.

The wheel loader (10) includes a vehicle main body (1), a rear detection section (71), a vehicle main body angle sensor (72), and a controller (26). The rear detection section (71) detects an obstacle (5) in the rear of the vehicle main body (1). The vehicle main body angle sensor (72) detects the inclination state of the vehicle main body (1). The controller (26) determines the control corresponding to the detection by the rear detection section (71), based on the inclination state of the vehicle main body (1) detected by the vehicle body angle sensor (72).

A load in a bucket is accurately weighed. A work machine includes a work implement, an input receiving unit, and a controller. The work implement includes a bucket. The input receiving unit receives a weighing start input for starting to weigh the load in the bucket. When the input receiving unit receives the weighing start input, the controller determines whether an automatic weighing start condition is satisfied or not. The automatic weighing start condition includes a condition that the work implement is not performing an excavation work. When the automatic weighing start condition is satisfied, the controller controls an operation of the work implement to weigh the load in the bucket.

A work machine includes systems and methods for stability control based on operating values. The work machine includes a control system having a sensor system with a load sensor, an arm position sensor, and an articulation angle sensor. A controller is in communication with the sensor system. The controller is configured to receive a movement command and to receive a set of values from the sensor system. The controller is configured to determine an operational window for normal operation of the work vehicle based on the received set of values, determine a movement limit based on the received set of values, and limit movement of a component beyond the movement limit.

A lift arm assembly for a power machine can include a lift arm, an implement carrier, a lift cylinder that raises or lowers the lift arm, a leveling link, a tilt cylinder that causes the implement carrier to pivot relative to the lift arm, and an isolated hydraulic circuit. The isolated hydraulic circuit can include a follower cylinder that is mechanically synchronized with the lift cylinder, a leveling cylinder that can be pivotally secured to the leveling link and to the lift arm, a first conduit that can provide hydraulic flow between base ends of the follower and leveling cylinders, and a second conduit that can provide hydraulic flow between rod ends of the follower and leveling cylinders. Movement of the follower and leveling cylinders can be hydraulically synchronized by flow through the first and second conduits.

A wheel loader configured to reduce the traveling distance required for a raise and run operation, and reduce fuel consumption includes: an engine 3; a torque converter 41; a forward and reverse switch 62; a stepping amount sensor 610; an operation amount sensor 73; and a controller 5. The controller 5 determines whether a specific condition for specifying an operation of the lift arm 21 in an upper direction during forward travel of the vehicle body, on the basis of a forward and reverse switching signal, the stepping amount on the accelerator pedal 61, and a pilot pressure Ti pertaining to the lifting operation amount for the lift arm 21. When the specific condition is satisfied, the vehicle speed is limited by reducing the maximum rotational speed of the engine 3 in response to increase in the pilot pressure Ti.