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Development of a Microprocessor-Based Steering Controller for an Over-the-Row Apple Harvester
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English
Abstract
In order to provide a machine with a better maneuverability, a microprocessor-based steering controller was designed and developed for an over-the-row apple harvester. The controller allowed the machine operator to select any one of the five steering modes which were: (1) auto-steer, (2) front only, (3) four way, (4) crab, and (5) rear only. Upon recognizing the selected steering mode, the controller executed the appropriate algorithm which performed the necessary wheel position control. As a part of the controller, absolute shaft encoders were designed. The encoders were used to sense the position of the wheels and the tree sensor arms. In each steering mode except auto-steer, the tracking ability of the rear wheels was determined. For the auto-steer mode, the ability of the apple harvester to reamin centered over a tree row while moving over the row was evaluated.
Authors
Citation
Upchurch, B., Tennes, B., and Surbrook, T., "Development of a Microprocessor-Based Steering Controller for an Over-the-Row Apple Harvester," SAE Technical Paper 810940, 1981, https://doi.org/10.4271/810940.Also In
References
- Busse W. Coenenberg H. Feldman F. Crusinberry T.F. “The First Serial Produced Automatic Steering System for Corn Combines and Forage Harvesters,” Proceedings of the International Grain and Forage Harvesting Conference, American Society of Agricultural Engineering September 1977 43 47
- Carlson Robert F. “Old and New Root-stocks, Interstems, and “New Standard” Compact Fruit Tree, Internationa Dwarf Fruit Tree Association 12 June 1979 2 5
- Decker R.L. “Microcomputer Control of Mobile Hydraulic Systems,” Proceedings of the National Conference on Fluid Power, National Fluid Power Association November 1979 193 197
- El-Ibiary Y.M. Nikiforuk P.N. “Design and Performance of a Self-Learning Microprocessor-Based Electrohydraulic Position Control System,” Proceedings of the National Conference on Fluid Power, National Fluid Power Association November 1979 215 218
- Kirk T.G. Krause A. E. “Swather Edge Guide Steering Control System,” ASAE Paper 71-1029.
- Kirk T.G. Zoerb G.K. Wilson J. N. “A Furrow-Following Tractor Guidance System,” ASAE Paper No. 76-001
- Ricks Donald J. Pierson Thomas R. “U.S. Apple Supplies: Trends and Future Projections,” Department of Agricultural Economics, Michigan State University, East Lansing, Michigan 48824 3
- Shukla Lal. N. Goering Carrol E. Day C. LeRoy “Effect of Tractor Parameters on Automatic Steering, Transactions of the ASAE, American Society of Agricultural Engineers” 13 5 678 681
- Tennes B.R. Burton C.L. Levin J.H. “Concepts for Mechanizing High-Density-Orchard Fruit Culture,” Transactions of the ASAE, American Society of Agricultural Engineers 19 1 35, 36 40
- Westerling David I. Constante Joseph F. “Improving Apple Production in Northeast Massachusetts,” ASAE Paper No. 76-2044
- Upchurch B.L. “Design and Development of a Microprocessor-Based Steering Controller for an Over-the-Row Apple Harvester,” Unpublished Master's Thesis, Michigan State University 1980