SYSTEME D'ETABLISSEMENT AUTOMATIQUE DU POINT DE CONSIGNE D'UN MECANISME DE CONTROLE AUTOMATIQUE DE LA PRESSION VERS LE BAS D'UNE PLANTEUSE DOTE D'UN DISPOSITIF DE MESURE DE LA COMPACTION DE LA PAROI LATERALE DU SILLON DE SEMENCE
An agricultural row unit for planting seeds in a furrow includes an openingtool that cutsa furrow in the soil to be planted, and a gauge wheel that engages the soil tocontrol elevation. Adepth control actuator applies a controllable down force to the gauge wheel,and a sidewallcompaction sensor extends into sidewalls of the furrow and produces a signalrepresenting thecompaction of the soil. A controller supplies the depth control actuator witha control signalrepresenting a down pressure set point to form a furrow having a desireddepth. The controlleruses the signal representing the compaction of the soil in the sidewalls todetermine whether thedown pressure set point should be increased or decreased, and supplies thedepth control actuatorwith a control signal when it is determined that the down pressure set pointshould be increasedor decreased.
