A moving efficiency of a work machine decreases if an obstacle, an entrance prohibiting region, and the like are arranged inside a region, if a positioning precision of the work machine is relatively low, and the like. A control apparatus includes a control section to control a movement of a moving object based on at least one of a completion level of map information indicating a region where a moving object is permitted to enter and a location estimation precision of a moving object.

A work machine having a controller configured to receive a first position signal from a first boom position sensor, a second position signal from a second boom position sensor, and a load signal from the load measuring device, wherein the controller is further configured to calculate a map of hydraulic capacities within an envelope of movement for one or more of a first and a second actuators based on the first position signal, the second position signal, and the load signal, and generate a lift path of movement for the pin through at least a portion of the envelope based on the hydraulic capacities, wherein the movement envelope being smaller than the envelope.

A work machine having an intelligent mechanical linkage performance system comprises a frame and a ground-engaging mechanism, a boom assembly coupled to the frame wherein the boom assembly comprises a large boom and a dipper stick. A load measuring device is coupled to the boom assembly and configured to generate a load signal indicative of a payload. A pin is coupled to the dipper stick wherein the pin has an envelope of movement throughout which the pin is moveable by the large boom and the dipper stick. A controller is configured to receive a first position signal from a first boom position sensor, a second position signal from a second boom position sensor, and the load signal from the load measuring device. The controller is further configured to calculate a map of hydraulic capacities within the envelope of movement.

Provided is a wheel loader capable of exhibiting sufficient excavation performance while suppressing slip during excavation. A control device (50) provided on a wheel loader (1) according to the present invention is configured to determine a reduction value (f) of traveling drive force based on first vehicle body acceleration (av1) of a vehicle body calculated from acceleration detected by an acceleration sensor (31), second vehicle body acceleration (av2) of the vehicle body calculated from rotational speed of wheels (4, 8) detected by a rotational speed sensor (32), and thrust (ph) of a hydraulic cylinder (11) detected by a thrust sensor (33, 34), and reduce the traveling drive force based on the reduction value and output the reduced traveling drive force.

A cooling control system includes a prime mover, a fan to be rotated under rotational power of an output shaft of the prime mover, a housing to which the fan is attached, a rotor to be rotated under rotational power of the prime mover, the rotor and the housing, under the agency of a fluid, rotating together, a fluid setting circuit to determine an injection quantity of the fluid to be introduced into the gap, a fan rotation detection device to detect a fan actual rotation speed, a target rotation obtaining circuit to obtain a fan target rotation speed. The integral controlling circuit does not execute the integral control with a difference between the fan actual rotation speed and a fan target rotation speed being greater than or equal to a threshold, and executes the integral control with the difference being less than the threshold.

When the vehicle speed increases and reaches a predetermined switching threshold, the controller reduces the displacement of the first travel motor and controls the flow rate control device to offset a flow rate excess in the hydraulic circuit in accordance with the reduction in the displacement of the first travel motor. After the vehicle speed has reached the switching threshold, the controller executes switching control to switch the clutch from an engaged state to a disengaged state.

Provided is a microtrencher having a utility avoidance system that detects objects buried under the roadway, identifies whether the buried object is a utility and determines whether the buried utility is in the path of the cutting wheel. If the buried utility is in the path of the cutting wheel, an alert is sent to the operator, the vehicle is stopped, and/or the cutting wheel is raised in relation to the roadway. Also provided is a method of using the microtrencher to cut a microtrench in a roadway and to avoid cutting a buried utility in the path of the cutting wheel.

The present invention relates to a vertical lift type loader comprising a power transmission arrangement with an engine, a hydraulic power system for powering work hydraulics of the loader and a drivetrain power system for powering locomotion of the loader, both being feedable with power from the engine, the hydraulic power system including a power limiter for limiting the power supply of the engine to the hydraulic power system to different power limit values, a determining device for determining an operational state of the loader, and a controller configured to control the power limiter to limit the power supply of the engine to the hydraulic power system to different power limit values, these power limit values being set depending on the operational state of the loader determined by the determining device.

A method for controlling a loading tool includes positioning the loading tool on a lifting device of a machine, receiving a payload by the loading tool from a payload stock during an operating mode, and determining a mass of the payload during the operating mode. The method also includes providing calibration data representative of a ratio between a volume of the payload and a mass of the payload, detecting a volume of the payload during the operating mode, and determining the mass of the payload as a function of the detecting step and the calibration data.

A hydraulic circuit for an adaptive park braking system and method of operation thereof. The method of operating an adaptive park braking system includes providing a vehicle having a motor, a front axle system, a rear axle system, wherein the front axle system has one or more front axle braking systems and the rear axle system has one or more rear axle braking systems. Identifying when the vehicle is engaged in a digging operation. Disconnecting the front axle system or the rear axle system from driving engagement with the motor of the vehicle. Activating the one or more braking systems of the disconnect axle system to apply an amount of force to the disconnected axle system of the vehicle. Then applying an amount of torque with the motor to the axle system in driving engagement with the motor.