An automatic dump control system and method are disclosed for a loader having a boom and a bucket each positionable by hydraulic cylinders actuated by a hydraulic circuit. The control system includes a source of image data of a receptacle and a source of position data for the boom and the bucket. The control system includes a controller that: determines a height of the receptacle based on the image data; determines a difference between the height of the receptacle and a height of the bucket based on the position data; outputs one or more control signals to the hydraulic circuit to position at least one of the boom and the bucket at a target height above the receptacle; determines that the bucket is positioned over the receptacle; and outputs one or more control signals to the hydraulic circuit to dump a load in the bucket into the receptacle.

According to the present invention, a controller determines whether the current performance of a piece of equipment satisfies a determination criterion, on the basis of the current state of the equipment, acquired by a sensor. If the controller determines that the current performance of the equipment does not satisfy the determination criterion, the controller calculates a parameter with which the performance of the equipment satisfies the determination criterion, on the basis of the current state of the equipment, acquired by the sensor, and the determination criterion. The controller changes a parameter managed by a storage device to the parameter calculated by the controller.

The present disclosure provides a method of controlling a drive speed of a drive unit powering a work machine. The method includes determining if a control switch is in an enabled position and detecting if a control mechanism is moved within a defined period of time to operate the machine to perform a function. The method also includes detecting if a control means has been positioned in the active state once the control mechanism is not moved within the defined period of time. The method further includes sending a signal to a drive unit controller to shut off the drive unit when the control means is triggered to the active state. The drive unit is turned off as electrical energy continues to be provided from an energy storage device to at least the vehicle control unit, drive unit controller, and sensor after the drive unit is turned off.

A multi-tool machine for utilizing a plurality of work tools includes an engine and a controller operatively coupled to the engine. The engine is configured to operate at a first engine operating configuration when a first work tool is coupled to the machine and configured to operate at a second engine operating configuration when a second work tool is coupled to the machine. The controller is configured to transition the engine from the first configuration to the second configuration when the machine transitions from the first work tool to the second work tool.

An excavation system is disclosed for a machine having a work tool. The excavation system may have first and second actuators configured to move the work tool in first and second directions, at least a first valve configured to regulate fluid flow through the first actuator, and at least a second valve configured to regulate fluid flow through the second actuator. The excavation system may also have at least one sensor to generate a first signal indicative of a performance of the first actuator, and a controller in communication with the at least a first valve, the at least a second valve, and the at least one sensor. The controller may be configured to make a first determination that the first actuator is experiencing a stall condition based on the first signal, and to selectively command neutralization of the powertrain and movement of the second actuator based on the first determination.

In a hydraulic driving system for construction machines, when track motors 3f and 3g are operated and the delivery pressure of a main pump 2 increases to a second value PS2 of the set pressure of a main relief valve 14, the set pressure of a signal pressure relief valve 16 increases from a third value PA1 to a fourth value PA2, which is smaller than the second value PS2 of the set pressure of the main relief valve 14, the difference between the second value PS2 and the fourth value PA2 being smaller than the target LS differential pressure. With such a structure, even if one of actuators reaches the stroke end and the delivery pressure of the hydraulic pump rises to the set pressure of the main relief valve, the other actuators do not stop, and further when the main relief valve is configured to increase the set pressure during operation of a specific actuator, the load pressure of the specific actuator does not increase to the increased set pressure of the main relief valve.

A vehicle fraction control system for a vehicle includes a prime mover, at least one wheel for providing tractive effort on a support surface, and a ground-engaging implement moveable relative to the support surface. The traction control system also includes a controller operable to monitor wheel slip of the at least one wheel. The controller is operable to move the ground-engaging implement at a rate proportional to an amount of wheel slip.

Disclosed in the present application are a method and apparatus for controlling a wheel loader, and a wheel loader and a storage medium, wherein an original trigger condition for KickDown is preset in the wheel loader. The method for controlling a wheel loader comprises: acquiring a way for releasing KickDown of a wheel loader; determining the current state of the wheel loader on the basis of the way for releasing KickDown; and when the current state of the wheel loader is working state, adjusting an original trigger condition to a first trigger condition, wherein the first trigger condition is easier to trigger than the original trigger condition.

An auxiliary motivation system for a work machine may be provided where the work machine has a power source for powering a hydraulic system to hydraulically power a hydraulic motor of a drive system of the work machine. The auxiliary motivation system may include an auxiliary motivation device that includes an auxiliary power source and an auxiliary hydraulic system powered by the auxiliary power source. The auxiliary hydraulic system may be configured for fluid coupling to the hydraulic motor of the drive system of the work machine to drive the work machine in place of the hydraulic system on the work machine.

This invention includes a hydraulic pump (9), a working implement (107) having a lift cylinder (13) driven by a hydraulic fluid supplied from the hydraulic pump (9), an operating device (104) for operating the working implement (107), a traveling motor (7) for driving wheels, and a main controller (100). When the lift cylinder (13) fails to operate despite an extending instruction being imparted to the lift cylinder (13) via the operating device (104), the main controller (100) reduces a limit value for an increase rate of a torque required in the traveling motor (7) to a value smaller than that applied when the lift cylinder (13) operates. With this configuration, occurrence of wheel slip during lifting of an object to be carried can be reduced.