×

Integrated implement downforce control systems, methods, and apparatus

  • US 10,443,631 B2
  • Filed: 01/29/2018
  • Issued: 10/15/2019
  • Est. Priority Date: 07/25/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for verifying operation of a pressure control valve on an agricultural implement, the agricultural implement having (i) a toolbar;

  • (ii) a plurality of row units mounted to the toolbar;

    (iii) a controller; and

    (iv) a fluid control system disposed on each of the plurality of row units, the fluid control system including a down pressure control valve and a lift pressure control valve;

    the method comprising the steps of;

    (a) via the controller, setting each said row unit'"'"'s down pressure control valve to a zero pressure or a substantially zero pressure;

    (b) via the controller, setting each said row unit'"'"'s lift pressure control valve at a lift pressure to cause each said row unit to raise;

    (c) confirming each said row unit is raised;

    (d) via the controller, setting each said row unit'"'"'s down pressure control valve at a down pressure sufficient to counteract said lift pressure to cause each said row unit to lower; and

    (e) confirming each said row unit is lowered.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×