A method for steering alignment calibration of an articulated machine having front and rear frames pivotally connected by an articulation joint to steer the machine may include displaying a steering alignment calibration screen with a target steering angle between the frames and a calculated steering angle. The calculated steering angle may be determined based on a sensed steering angle and a calibration steering angle. The machine is steered until the displayed calculated steering angle is equal to the target steering angle. If an actual steering angle of the machine is not equal to the target steering angle, further steering is performed until the actual steering angle is equal to the target steering angle. The calibration steering angle may be recalculated and stored for future use when the actual steering angle is equal to the target steering angle but the calculated steering angle is not equal to the target steering angle.

An object responsive control system for a work machine having a boom, an attachment pivotally coupled to the boom, an object sensor adapted for sensing the presence of an undesirable object located in a travel path of the work machine and delivering an object signal upon sensing the undesirable object. A controller adapted for receiving a boom position signal, an attachment position signal, and calculating an elevational position based on the boom position signal. The system activating an object response upon calculating an attachment elevation position above a predetermined threshold and receiving an object signal.

An electric loader is provided with a plurality of independently driven wheels. For example, a four-wheeled electric loader includes four independently operated wheels, each directly coupled to a dedicated electric motor. A fifth independent electrical motor powers the lift arm and/or any attachments coupled to an auxiliary hydraulic. A central forced-air system supplies pressurized air to each independent electric motor to cool the electric motor during operation. In some embodiments, the auxiliary electric motor powers the fan and/or air conditioner of the central forced-air system. A lever and/or electric brake may be applied to an axle of the electric motors. In some embodiments, a rotating or pivotable battery panel locks a plurality of battery cells to provide a central source of power, counter-weight the loader arm, and rotate away to provide the operator access to an internal cavity of the cab.

A control system is disclosed. The control system may include a first input component to control a lean angle of at least one set of wheels of a machine and to provide a visual and/or tactile indication of the lean angle. The control system may include a second input component to control an articulation angle of an articulated joint of the machine and to provide a visual and/or tactile indication of the articulation angle. The control system may include a third input component to control a rotation angle of an implement of the machine and to provide a visual and/or tactile indication of the rotation angle.

In order to generate a trajectory that enables efficient excavation of an object, an excavation trajectory generation apparatus 4 includes: an excavation point obtaining section 110 configured to obtain information related to an excavation point at which an object 2 is to be excavated; a parameter calculation section 120 configured to calculate a parameter to be used for generating an excavation trajectory; and an excavation trajectory generation section 140 configured to generate a trajectory with which an excavator 3 excavates the object 2, based on the excavation point, accumulation height information for the object 2 at the excavation point, and an excavation possible range for the excavator 3 to excavate the object 2.

A motor grader representing a work vehicle includes a steering mechanism and a control unit. The control unit controls the steering mechanism to maintain constant, a rate of change in a direction of travel per unit travel distance of the motor grader.

A motor grader in which a motive power source of an electric motor can appropriately be arranged is provided. The motor grader includes a front frame, a rear frame, and a coupling shaft. The rear frame is arranged in the rear of the front frame. The coupling shaft couples the front frame to the rear frame as being pivotable with respect to the rear frame. The motor grader includes a front wheel rotationally driven to run the motor grader, the electric motor that generates driving force for rotationally driving the front wheel, and a battery in which electric power supplied to the electric motor is stored. The battery is arranged in front of the coupling shaft.

Tipping over of a work machine is prevented. The work machine includes: a vehicular body; a rear axle attached to the vehicular body to be capable of undergoing a roll motion with respect to an axis extending in a front-rear direction of the vehicular body; and a controller. The controller acquires stability of the center of gravity of the vehicular body, and controls the roll motion of the rear axle with respect to the vehicular body based on the stability.

A vehicle steering assembly for controlling movement of a vehicle having independently rotatable left and right ground-engaging traction elements. The steering assembly comprises a steering handle coupled to the panel support structure and extending generally upwardly from the panel support structure. The steering handle comprises a laterally-extending crossmember and at least one upright extension member. The crossmember and the upright extension member are rigidly connected to one another so that shifting of the crossmember relative to the extension member is substantially prevented. The steering handle is shiftable in forward and rearward directions to thereby cause corresponding forward and rearward rotation of both of the left and right traction elements. The steering handle is rotatable in clockwise and counterclockwise directions to thereby cause a change in the relative speeds and directions of rotation of the left and right traction elements.

A bulldozer includes a control unit for controlling left and right steering clutches and left and right steering brakes, thereby executing a turning control of the vehicle. The control unit switches between a clutch control and a brake control on the basis of a differential between an actual turning radius and a target turning radius.