PERCEPTION MODEL FOR TRAJECTORY FOLLOWING AUTONOMOUS AND HUMAN AUGMENTED STEERING CONTROL

• US 20080195282A1
• Filed: 02/12/2007
• Published: 08/14/2008
• Est. Priority Date: 02/12/2007
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Norris, William Robert, Reid, John Franklin, Romig, Bernard Edwin
• Granted Patent: US 8,195,364 B2
• Time in Patent Office: Days
• US Class Current: 701/44
• CPC Class Codes: B60W 2050/0057 Frequency analysis, spectral techniques or transforms
• CPC Class Codes: B62D 1/28 non-mechanical , e.g. following a line or other known markers
• CPC Class Codes: G05B 13/0275 using fuzzy logic only
• CPC Class Codes: G05D 1/0278 using satellite positioning signals, e.g. GPS

Abstract

A steering control method including the steps of obtaining a heading error, obtaining a velocity value, obtaining a distance error, applying the heading error and defuzzrfying an output from a steering rule base. The velocity value and the distance error are applied along with the heading error to fuzzy logic membership functions to produce an output that is applied to a steering rule base. An output from the steering rule base Is defuzzified to produce a steering signal

Claims