Abstract:
An earthmoving system is disclosed. The earthmoving system includes a blade, a controller, and a blade control system configured to control the positioning of the blade. While grading, the earthmoving system is configured to simultaneously position the blade according to each of a fixed slope grading mode, a design driven control grading mode, and an fixed load grading mode.
Abstract:
A system and method of controlling a ripping operation is disclosed. The method includes lowering a ripper (18) of a machine (10) to a depth under a work surface (12). The method determines when a drawbar pull of the machine (10) is at a drawbar pull target for the machine. When the drawbar pull is greater than the drawbar pull target, the method reduces the power source torque of the machine from a first power source torque to a second power source torque.
Abstract:
A lifting arrangement for a construction machine is provided which includes a main arm (3) which is provided with a pivot connector (4). The pivot connector (4) is pivotably supported on a main arm support means (6). The main arm support means (6) is moveable in a direction which includes at least a component in the front-rear direction with respect to a frame arrangement of the construction machine to which the lifting arrangement can be applied. Based on the control of a main arm actuating element (11) and an auxiliary actuating element (21), a path of an equipment connector (5) upon moving the main arm (3) between a lowered position and a lifted position can be achieved which follows a predetermined path.
Abstract:
A method for controlling loading material to a bucket (106) of a work machine (100) from a stack of material (204) is disclosed. The method comprises selecting a control profile to be used as a basic control profile comprising indications for positions of at least one of the bucket (106) and the boom (104) of the work machine (100) as a function of a distance travelled by the work machine with reference to a reference location; obtaining information of a distance travelled by the work machine (100) while loading material to the bucket (106); examining at least one condition regarding the work machine (100) during loading; and determining, on the basis of the examined condition, whether another position than indicated by the selected control profile is to be used for at least one of the bucket and the boom. If it is determined that another position than indicated by the selected control profile is to be used for at least one of the bucket and the boom, the method further comprises selecting said another position. There is also disclosed an apparatus, a computer program product, and a work machine.
Abstract:
A method, system, and non-transitory computer-readable storage medium for calibrating an implement actuation sensor (220) of a machine (100) are disclosed. The method may include calculating a first elevation value of an implement (102) of the machine in a gravity reference frame (301) of the machine. The method may further include calculating a second elevation value of a ground-engaging device (118) of the machine in the gravity reference frame of the machine. The method may further include determining a difference between the first elevation value and the second elevation value. The method may further include calibrating the implement actuation sensor based on the determined difference.
Abstract:
A system for re-orienting a machine during a ripping operation includes a position sensing system, a ripper, and a controller. The system stores a ripping path, determines the position of the machine, and compares the position of the machine to the ripping path. A drawbar pull of the machine is determined, compared to a maximum steering drawbar pull, and the ripper is raised if the machine is positioned greater than a predetermined distance from the ripping path and the drawbar pull exceeds the maximum steering drawbar pull. The machine is re-oriented and the ripper lowered relative to the work surface.
Abstract:
A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the excavation implement is regulated by use of an operator modifiable relationship between an engine- operating speed and an actuator speed. The actuation of the excavation implement is further regulated by use of an operator modifiable relationship between an attachment drive speed and the actuator speed. A computer network (182) controls the actuation of the excavation implement in response to inputs from the operator and feedback from the engine speed, the attachment drive speed, and an actuator position sensor (408) as the excavation implement progresses through the earth. This results in the system maintaining the engine speed and the attachment drive speed at a desired output level when the excavation implement is subject to variations in loading while moving between the above-ground and below-ground positions.
Abstract:
A system and process for controlling and actuating an excavation implement during excavation between an above-ground position and an operator specified below-ground position and for maintaining the specified below-ground position once achieved. The actuation of the excavation implement is regulated by use of an operator modifiable relationship between an engine- operating speed and a actuator speed. The actuation of the excavation implement is further regulated by use of an operator modifiable relationship between an attachment drive speed and the actuator speed. A computer network (182) controls the actuation of the excavation implement in response to inputs from the operator and feedback from the engine speed, the attachment drive speed, and an actuator position sensor (408) as the excavation implement progresses through the earth. This results in the system maintaining the engine speed and the attachment drive speed at a desired output level when the excavation implement is subject to variations in loading while moving between the above-ground and below-ground positions.