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US 11,807,295 B2Granted
Steering apparatus for an agricultural vehicle
AssigneeDeere & Company
InventorMatthias Zwanzger
Life of this patent
Estimating the term…
Abstract
A steering apparatus for an agricultural vehicle includes a vehicle axle suspended in an oscillating or resilient manner, steerable wheels located on the vehicle axle, and an actuating apparatus for influencing a steering angle which is adjustable on the steerable wheels. A device actively limits an oscillating angle or deflection path arising on the vehicle axle. Moreover, the device operably activates a control unit according to a full steering angle to be anticipated on the steerable wheels as a result of travel.
Claims12
A steering apparatus for an agricultural vehicle, comprising:
- a vehicle axle suspended in an oscillating and resilient manner;
- one or more steerable wheels located on the vehicle axle;
- a control unit connected to a satellite-assisted navigation system, a cartographic memory, and a CAN bus communicating with a wheel rotational speed sensor, a steering angle sensor, and a headland management system;
- an actuating apparatus for influencing a steering angle which is adjustable on the one or more steerable wheels;
- a suspension strut connected between the vehicle axle and a vehicle structure of the agricultural vehicle;
- and
- a control valve hydraulically connected between the suspension strut and a hydraulic system for actively limiting one or more of an oscillating angle about a vehicle longitudinal axis and a deflection path along a vehicle vertical axis of the vehicle axle;
- wherein the control valve reduces one or more of the oscillating angle and the deflection path by reducing a hydraulic flow between the suspension strut and the hydraulic system when the control unit anticipates a full steering angle by extrapolating an imminent execution of one or more of a turning maneuver and a parking maneuver based on characteristic evidence;
- wherein the control unit extrapolates the imminent execution of the parking maneuver based on travel speed, steering angles, and changes in direction.
6 more elements
An agricultural vehicle, comprising:
- a vehicle axle suspended in an oscillating and resilient manner;
- one or more steerable wheels located on the vehicle axle;
- a control unit connected to a satellite-assisted navigation system, a cartographic memory, and a CAN bus communicating with a wheel rotational speed sensor, a steering angle sensor, and a headland management system;
- an actuating apparatus for influencing a steering angle which is adjustable on the one or more steerable wheels;
- a suspension strut connected between the vehicle axle and a vehicle structure of the agricultural vehicle;
- and
- a control valve hydraulically connected between the suspension strut and a hydraulic system for actively limiting one or more of an oscillating angle about a vehicle longitudinal axis and a deflection path along a vehicle vertical axis of the vehicle axle;
- wherein the control valve reduces one or more of the oscillating angle and the deflection path by reducing a hydraulic flow between the hydraulic suspension strut and the hydraulic system when the control unit anticipates a full steering angle by extrapolating an imminent execution of one or more of a turning maneuver and a parking maneuver based on characteristic evidence;
- wherein the control unit extrapolates the imminent execution of the parking maneuver based on travel speed, steering angles, and changes in direction.
6 more elements
A steering apparatus for an agricultural vehicle, comprising:
- a vehicle axle suspended in an oscillating and resilient manner;
- one or more steerable wheels located on the vehicle axle;
- a control unit connected to a satellite-assisted navigation system, a cartographic memory, and a CAN bus communicating with a wheel rotational speed sensor, a steering angle sensor, and a headland management system;
- an actuating apparatus for influencing a steering angle which is adjustable on the one or more steerable wheels;
- and
- a control valve for actively limiting one or more of an oscillating angle about a vehicle longitudinal axis and a deflection path along a vehicle vertical axis of the vehicle axle;
- wherein the control valve reduces one or more of the oscillating angle and the deflection path when the control unit anticipates a full steering angle by extrapolating an imminent execution of one or more of a turning maneuver and a parking maneuver based on characteristic evidence;
- wherein the control unit extrapolates the imminent execution of the parking maneuver based on travel speed, steering angles, and changes in direction.
5 more elements
Dependencies are inferred from the claim text.