Dynamic supplemental downforce control system for planter row units
作者： Derek A. Sauder , Jeremy J. Hodel
DOI:
关键词:
摘要: A dynamic supplemental downforce control system for a planter row unit. The includes closed-loop feedback circuit that cooperates with actuator to dynamically fluid flow the maintain balance between actual gauge wheel and desired during planting operations.
google.de 参考文章(40)
Ralph Sweet, F Ben Dyck, Automatic depth control device for tillage units ,(1969)
Edward L. Robinson, Tom G. Stamp, Furrow forming apparatus for a seed planter. ,(1981)
Keith W. Wendte, Method and apparatus for automatically maintaining seed trench depth during seed planting operations ,(2003)
Jack L. Bauman, Equalized furrow forming apparatus for a seed planter ,(1980)
Jr. John E. Morrison, Ground contact implement soil penetration depth control ,(1989)
Derek A. Sauder, Justin L. Koch, Phil D. Bauer, Tim A. Sauder, System and method for determining proper downforce for a planter row unit ,(2008)
Douglas G. Hunter, Oil pump control valve spool with pilot pressure relief valve ,(1999)
John Rosbak, Nicholas Hamm, Agricultural implement and depth control therefor ,(1981)
Christopher John Baker, William Rowlan Ritchie, David John Robinson, A ground opening device ,(2006)
Hubert Defranco, Hitch gear having a load transfer system ,(1989)