A method for operating an industrial truck having three wheels. During longitudinal travel, two steerable wheels run in succession in a first lane, and a third wheel runs in a second lane. The third wheel initially runs on an inside during a turning in while cornering until the industrial truck, during a further turning in, transitions into a revolving motion. The method includes reducing a drive power as of a specific steering angle during the turning in prior to the revolving motion, and disengaging or reversing a direction of a drive rotation of the third wheel after a delay time which begins with the reducing of the drive power, or, continuously reducing the drive power from the specific steering angle during the further turning in, and disengaging or reversing the direction of rotation of the third wheel when transitioning into the revolving motion.

Terrain characteristics of an off-road area are determined based on a map. The terrain characteristics include a terrain type, a terrain grade, and a presence or an absence of an obstacle. Vehicle characteristics are determined including a ground clearance and a breakover angle. Based on a user level, vehicle parameters for the off-road area are determined based on the terrain characteristics, the vehicle characteristics, and the user input. The vehicle parameters include a speed and a transmission gear. The vehicle parameters for the off-road area are output.

An automated steering device is provided usable in conjunction with power equipment machines. By way of example, the automated steering device can provide user-assisted steering for a power equipment machine to maintain tight parallel paths. The user-assisted steering can be defined relative to an initial vector traversed through user directed operation of the power equipment machine, independent of or at least in part independent of a predefined area of operation for the power equipment machine. Position location data refined by local terrestrial positioning system correction devices, or onboard rotational correction devices can be provided to obtain high positioning accuracy, and minimal path deviation. As a result, highly accurate pathing can be provided by way of the disclosed automated steering devices.

Systems and methods for restricting the use of vehicle operator's electronic device are provided. In a method by a telematics server, the server determines that a vehicle's engine is running and that the operator registered with the vehicle is in the driver's seat. In response, the server sends a message to the vehicle operator's electronic device for disabling at least one feature thereof. In a method by a vehicle operator's electronic device, the electronic device determines that the vehicle is running and that the operator is in the driver's seat. In response, the electronic device disables at least one feature thereof. The systems and methods can be used to discourage or restrict the use of electronic devices by drivers sitting in a vehicle with the engine running in accordance with laws in certain jurisdictions.

Techniques for diagnosing and disambiguating a bias in one or more axels of a bidirectional four-wheel drive vehicle. In some examples, the diagnostics system may diagnose and disambiguate the bias in the two axles by collecting data related to the movement of the vehicle while the vehicle traverses a zero curvature path in a forward direction. The diagnostics system may then determine a bias in an axle acting as the rear axle based on the collected data. The bias in the axle acting as the front axle may then be determined based on the collected data and the bias in the rear axle.

A periphery monitoring device includes: an acquisition section acquiring a steering angle of a vehicle; an image acquisition section acquiring a captured image from an image capturing section that captures an image of a periphery of the vehicle; a detection section acquiring detection information of an object around the vehicle; and a control section causing a display section to display a synthesized image including a vehicle image showing the vehicle and a periphery image showing the periphery of the vehicle based on the captured image. When the object is detected on a course of the vehicle traveling at the steering angle by a predetermined distance, the control section causes a virtual vehicle image to be displayed in the synthesized image to be superimposed on a course to the object with a position of the vehicle as a reference.

A method to determine, in real time, a use-life of a steering system includes tracking an attribute signal associated with the steering system. The method further includes, based on a determination that the attribute signal rises above an upper threshold and subsequently falls below a lower threshold, selecting a subset of categories based on a frequency content of the attribute signal. The method further includes selecting a category from the subset of categories based on a peak load occurring in sequence to the attribute signal via a secondary attribute signal. The method further includes incrementing a counter for the selected category. The method further includes computing the use-life based on a ratio of the counter for the selected category and a predetermined count for said selected category.

Systems and methods are disclosed herein for automatically controlling wheel lean in a work vehicle (e.g., a motor grader) comprising a front portion with an axle and a plurality of traction wheels configured to lean at a wheel-lean angle relative thereto. Based on output signals from one or more sensors mounted on the work vehicle, work conditions are detected comprising an actual wheel-lean angle of at least one wheel relative to the axle, an oscillation angle of the axle, and a slope of the terrain. In automatic control operations, wheel lean is automatically directed to a predetermined orientation (e.g., corresponding to a direction of gravity), based at least on detected work conditions. Wheel lean may further be automatically directed based on detected steering inputs for positioning of the traction wheels and a detected articulation angle for positioning of the front portion of the work vehicle relative to the rear portion.

A correction system for a steering device that steers a steered wheel so that a steered angle of the steered wheel follows a steering angle of a steering wheel of a vehicle. The correction system includes a mode setting unit that sets the steering device to a correction mode for correcting the steering angle. An error calculation unit receives the detected steering angle and the detected steered angle in the correction mode when the steering wheel is rotated to calculate the difference between the steering angle and the steered angle and obtain a trigonometric waveform as an error of the steering angle. A correction unit corrects a parameter of the waveform so that the waveform become close to optimal.

An agricultural vehicle configured for traveling in a driven-wheel-leading mode and a caster-wheel-leading mode. The agricultural vehicle includes a first driven wheel and a second driven wheel, a caster axle, a first caster wheel and a second caster wheel, and a steering system. The steering system includes a first steering actuator connected in between the caster axle and the first caster wheel, a first sensor connected to the caster axle, and a controller operably connected to the first steering actuator and the first sensor. The controller is configured for actuating the first steering actuator to steer the first caster wheel in the driven-wheel-leading mode and the caster-wheel-leading mode.