Vehicular guidance system having compensation for variations in ground elevation
First Claim
Patent Images
1. A method of guiding a vehicle, the method comprising:
- establishing elevation data and corresponding location data for a work area divided into cells;
determining location data, including a particular location of a vehicle, within the work area;
estimating at least one of roll data and pitch data corresponding to the particular location, the roll data associated with a corresponding lateral slope, the pitch data associated with a corresponding longitudinal slope generally perpendicular to the lateral slope, wherein each of the roll data and pitch data are separately estimated using i) a maximum slope of ground with respect to a reference point for each cell traversed by the vehicle corresponding to the particular location, and the maximum slope having a non-zero longitudinal slope component and a non-zero lateral slope component, and ii) an aspect angle between a direction of the maximum slope and an axis with which a direction of travel is coincident;
guiding the vehicle steering in a direction of travel with compensation data based upon at least one of the estimated roll data and the pitch data such that an actual path of the vehicle follows a target path.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method of guiding a vehicle comprises establishing elevation data and corresponding location data for a work area. A particular location of a vehicle within the work area is determined. Roll data and pitch data are estimated corresponding to the particular location. The vehicle is guided based upon the estimated roll data and the pitch data such that the vehicle follows a desired path.
55 Citations
15 Claims
-
1. A method of guiding a vehicle, the method comprising:
-
establishing elevation data and corresponding location data for a work area divided into cells; determining location data, including a particular location of a vehicle, within the work area; estimating at least one of roll data and pitch data corresponding to the particular location, the roll data associated with a corresponding lateral slope, the pitch data associated with a corresponding longitudinal slope generally perpendicular to the lateral slope, wherein each of the roll data and pitch data are separately estimated using i) a maximum slope of ground with respect to a reference point for each cell traversed by the vehicle corresponding to the particular location, and the maximum slope having a non-zero longitudinal slope component and a non-zero lateral slope component, and ii) an aspect angle between a direction of the maximum slope and an axis with which a direction of travel is coincident; guiding the vehicle steering in a direction of travel with compensation data based upon at least one of the estimated roll data and the pitch data such that an actual path of the vehicle follows a target path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification