Patent classifications
B62D11/00
WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE
A method for controlling a work vehicle includes driving a first hydraulic pump and a second hydraulic pump by an engine to supply hydraulic fluid to a first hydraulic motor and a second hydraulic motor, respectively, to drive a first traveling device and a second traveling device, respectively. An operation state of a direction input device to operate a traveling direction of the work vehicle is detected. Based on the operation state detected, whether or not a traveling state of the work vehicle is a turning state. When it is determined that the traveling state is the turning state, a rotation command to decrease a target rotational speed of the engine from a first rotational speed to a second rotational speed is output.
CONTROL SYSTEM FOR WORK VEHICLE, CONTROL METHOD, AND WORK VEHICLE
A control system for a work vehicle includes an acceleration detection device and a controller. The acceleration detection device detects an acceleration of the work vehicle. The controller determines whether the acceleration is greater than a first threshold and reduces the a vehicle speed when the acceleration continues to be equal to or greater than the first threshold over a predetermined first determination time period.
Paving machine with smart steering control
A smart steering control system a paving or texturing machine receives path elements corresponding to current and future positions of the machine. By comparing the current and future elements, an expected completion time is derived for exiting the current position and entering the future position; the smart steering control system synchronizes adjustments of the machine's steerable tracks from the current path to the future path. The smart steering control system functions as a virtual tie rod, preventing damage, enhancing the traction control and pulling power of the machine, and preserving the operating life of its components.
Systems, devices, and/or methods for groundskeeping
Certain exemplary embodiments can provide a system comprising a zero turn riding lawnmower. The zero turn riding lawnmower is steerable solely via a first foot pedal and a second foot pedal. Each of the first foot pedal and the second foot pedal coupled to a mower linkage of the zero turn riding lawnmower. The first foot pedal is constructed to cause at least one wheel on a first side the zero turn riding lawnmower to be powered in a forward direction or a reverse direction. The second foot pedal is constructed to cause at least one wheel on a second side the zero turn riding lawnmower to be powered in a forward or reverse direction.
Steering systems and methods using active braking
A differentially steered vehicle includes brakes on the powered wheels which are applied via a controller according to different methods to inhibit freewheeling during turns and improve steering responsiveness and stability. The methods include applying braking force to the wheel on the inside of a turn in response to the rate of turn as indicated by the position of the steering control, to the pressure differential across the hydraulic motors driving the wheels and the rotational speed of the wheels.
Work vehicle
A brake control unit configured to control a brake to a braked state in response to a brake position sensor having detected that a steering lever has been operated to a stop position and to a released state in response to the brake position sensor having detected that the steering lever has been operated from the stop position toward a travel operation pathway and a travel position sensor having detected that the steering lever is at a neutral position, at which the steering lever is placeable to stop travel.
Mobile omnidirectional device
A mobile omnidirectional device having a base support, four wheels pivotally connected to the base support, each wheel being driven by a drive motor, a controller for individually controlling each of the drive motors, and a power source for powering the controller and the drive motors. The device provides a zero inch turning radius and can be configured as a jib hoist or a rolling transportation cart.
Automatically adjusting swing legs for mounting and aligning and reorienting crawlers
A swing leg assembly, coupled to a paving machine for spreading, leveling and finishing concrete, includes a pivotable swing leg coupled to the paving machine. The swing leg may pivot between multiple angular orientations relative to the paving machine. A jacking column is coupled to the swing leg, and a crawler track is coupled to the jacking column. A slew drive coupled to the jacking column and crawler track rotates the crawler track relative to the jacking column between multiple angular orientations. A processor using sensors determines the angular positions of the swing leg and crawler track, and in response to determining a change in angular orientation of the swing leg controls the slew drive to cause the crawler track to rotate relative to the jacking column.
Work vehicle and control method for work vehicle
A controller controls the steering device so as to cause a vehicle body to turn toward the left when a left steering lever is operated without a right steering lever being operated. The controller controls the steering device so as to cause the vehicle body to turn toward the right when the right steering lever is operated without the left steering lever being operated. The controller reduces the rotation speed of the engine when both the left steering lever and the right steering lever are operated and both the operation amount of the left steering lever and the operation amount of the right steering lever are equal to or greater than a first threshold.
Steering authority control for a vehicle
A vehicle includes a rear steering system and a front differential hydraulic drive system. A first front drive control valve is operable to output a defined fluid flow in response to a steering command input. A second front drive control valve is operable to selectively divert a portion of the defined fluid flow output from the first front drive control valve. When the vehicle is operating in a pre-defined condition, a steering controller may control the second front drive control valve to divert a portion of the defined fluid flow from the first front drive control valve to define a reduced fluid flow, which is communicated to the front differential hydraulic drive system, to reduce a steering ratio of the front differential hydraulic drive system relative to the rear steering system, to desensitize steering provided by the front differential hydraulic drive system.