E02F9/2012

Track speed compensation for engine speed droop

A system and method for compensating reduced track speed because of engine droop for a work machine is disclosed. The system may comprise a frame, an attachment coupled to the frame, a ground-engaging mechanism adapted to support the frame, an engine, a motor, a track speed sensor, an engine speed sensor, and a controller. The engine may drive the ground-engaging mechanism and attachment. The engine may be coupled through a variable speed transmission to the ground-engaging mechanism and the attachment. They variable speed transmission may include a hydrostatic circuit. The controller may be adapted to send an increased transmission command signal based on a drop in the engine speed signal when the work machine engages an increased load. The increased transmission command signal may increase a motor speed to cause an increase in track speed to compensate at least a portion of the reduced track speed from the engine speed droop.

Intelligent assist system for a work machine

A work machine controller that is coupled to the boom assembly may comprise of a controller with a memory that stores computer-executable instructions and a processor that executes instructions. The instructions include monitoring a first position signal from the first boom position sensor, a second position signal from the second boom position sensor, the load signal, and the orientation signal. The instructions then include calculating a load vector based on the load signal and the orientation signal, generating a disorientation signal based on the load vector and a direction of travel, determining if the disorientation signal is outside a predetermined threshold, and actuating one or more of the actuators and the ground-engaging mechanism to reorient the load when the disorientation signal exceeds the predetermined threshold.

Electrically powered hydraulic system and a method for controlling an electrically powered hydraulic system
11566400 · 2023-01-31 · ·

An electrically powered hydraulic system for a working machine includes: an electric motor to power a working hydraulic pump. A flow of hydraulic fluid generated by the hydraulic pump is controlled by the operation rotational speed of the electric motor. An electronic control unit is configured to: when an operator input device is in a first operating range, maintain the electric motor at a constant rotational speed, and control a variation in flow of hydraulic fluid to the hydraulic function with an electronically controlled control valve, and when the operator input device is in a second operating range, control a variation in flow of hydraulic fluid by varying the electric motor rotational speed and by controlling the control valve, according to displacement of the operator input device.

CONFIGURABLE USER INTERFACE
20230026510 · 2023-01-26 ·

A system with a configurable user interface for controlling a console of an agricultural vehicle to enable assignment of one or more configurable control keys of the user interface to one or more vehicle functions. At least one configurable control key of the user interface is determined for a selected vehicle function. The control key(s) is/are then indicated to a user to select the desired key(s) and assign the vehicle function to the selected control key(s).

ADAPTIVE CONTROL METHOD, ELECTRONIC DEVICE, EXCAVATOR, AND NON-TRANSITORY STORAGE MEDIUM

Disclosed is an adaptive control method applicable to an excavator. The adaptive control method includes: acquiring detection parameters of the excavator, the detection parameters comprising a displacement of an electric control handle of the excavator and angle information of the excavator; identifying a current working condition of the excavator based on the detection parameters; and adjusting control parameters of the excavator based on the current working condition. According to the adaptive control method provided by the present disclosure, the current working condition is identified by using the displacement of the electric control handle and the angle information of the excavator, and then the control parameters of the excavator are adjusted based on the current working condition, so that the control parameters are automatically adjusted with change of the current working condition, which improves control efficiency of the excavator.

Control mapping for hydraulic machines

A machine control system can store model weights determined via machine learning using a training dataset correlating preset hydraulic valve displacements to measured movement parameters of a machine component. The machine control system can receive an input command for the component and machine state data from machine sensors. A control mapping model can use the model weights to map a combination of the input command and the machine state data into a predicted displacement of the hydraulic valve that causes movement of the component in response to the input command.

Utility loader with high lift loader arms and unifying hand grip for dual traction control levers

A compact utility loader is operated by a standing operator at the rear of a frame. A loader arm assembly comprises a scissors linkage on either side of the frame nesting around the prime mover. Each scissors linkage has an upper loader arm that is pivoted at its rear end to rears ends of a pair of lower loader arms such that the pivot connections to the upper loader arm move upwardly and forwardly relative to the frame during elevation of the loader arm assembly to provide a high lift capability. The frame is self-propelled by a differential drive and steering system that is operated by dual levers. A hand grip extends between and unifies the operation of the levers to permit the operator to more easily move the levers in the ways that are needed to provide either straight motion of the frame or turns of the frame.

SYSTEM AND CONTROL METHOD FOR PREVENTING ERRONEOUS OPERATION OF WORK MACHINE, AND EXCAVATOR
20230018377 · 2023-01-19 ·

A camera captures an image of a region including at least a portion of an operating member and generates image data indicative of the image. A controller acquires the image data from the camera. The controller determines whether an operation of the operating member by an operator is an intentional operation or an unintentional operation based on the image. When the operation of the operating member by the operator is determined to be the intentional operation, the controller controls a work machine according to the operation of the operating member. When the operation of the operating member by the operator is determined to be the unintentional operation, the controller invalidates the operation of the operating member.

TOUCHPAD MACHINE CONTROL

A work equipment for controllably performing work, includes: a work mechanism; a touch-sensitive device configured to output a desired position signal corresponding to a desired position of the work mechanism, the touch-sensitive device selectively operatively including a virtual mechanical control associated with producing the desired position signal; and a controller operatively coupled to the touch-sensitive device and the work mechanism, the controller configured to output an adjustment signal to the work mechanism to adjust an actual position of the work mechanism based at least partially on the desired position signal, the touch-sensitive device being configured to output the desired position signal to the controller when at least one control object is moved along the touch-sensitive device with respect to the virtual mechanical control in a manner that mimics operating a mechanical control.

One-Handed Joystick For Excavators
20230221752 · 2023-07-13 ·

A one-handed joystick for excavators allows an operator to make all necessary motions with a single hand and arm for manipulating an excavator tool. The one-handed joystick includes a rotatable cylinder bar, a rotatable ring and an industrial joystick base. The rotatable cylinder bar is grasped with a hand. The industrial base is moved front to back, or right to left. The following are preferable hand/arm motions. A downward hand curl is associated with a bucket digging motion; an upward hand curl is associated with a bucket dump; a forearm forward push is associated with a boom/stick extension; a forearm reward pull is associated with a boom/stick retraction; a left-hand movement is associated with swinging the excavator left; a right-hand movement is associated with swinging the excavator right; a clockwise hand twist is associated with a stick/boom extension; and a counter clockwise hand twist is associated with a stick/boom retraction.