METHOD AND SYSTEM FOR ESTIMATING SURFACE ROUGHNESS OF GROUND FOR AN OFF-ROAD VEHICLE TO CONTROL STEERING

• Main Authors: SCHLEICHER, Tyler D, BIRKLAND, Christopher D
• Format: Patent
• Language: English; French; German
• Published: 20.09.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; DREDGING; FISHING; FIXED CONSTRUCTIONS; FORESTRY; FOUNDATIONS; HUMAN NECESSITIES; HUNTING; HYDRAULIC ENGINEERING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MEASURING; MOTOR VEHICLES; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES ORIMPLEMENTS, IN GENERAL; PERFORMING OPERATIONS; PHYSICS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; SOIL SHIFTING; SOIL WORKING IN AGRICULTURE OR FORESTRY; TESTING; TRAILERS; TRANSPORTING; TRAPPING; VEHICLES IN GENERAL

A method and system for estimating surface roughness of a ground for an off-road vehicle to control steering of a vehicle, an implement, or both, comprises detecting motion data of an off-road vehicle traversing a field or work site during a sampling interval. A first sensor is adapted to detect pitch data of the off-road vehicle for the sampling interval to obtain a pitch acceleration. A second sensor is adapted to detect roll data of the off-road vehicle for the sampling interval to obtain a roll acceleration. An electronic data processor or surface roughness index module determines or estimates a surface roughness index based on the detected motion data, pitch data and roll data for the sampling interval. The surface roughness index can be displayed on the graphical display to a user or operator of the vehicle.