Draft load measurement and control
Abstract
An apparatus is described for providing a measurement of draft force exerted by a draft implement coupled to a tractor through at least one link arm of a hydraulic lift assembly having at least one lift rod coupled between each link arm and a hydraulic cylinder for lifting or lowering the draft implement, comprising: a force transducer coupled to the link arm for providing a total force signal related to the total force applied against the link arm; a pressure sensor coupled to the cylinder for providing a pressure signal related to cylinder pressure; position means coupled to the lift rod for providing a lift position signal related to the position of the lift rod; processing means responsive to both the pressure signal and the lift position signal for providing a component lift force signal related to the component of lift force transmitted to the link arm through the lift rod; and means for adding the component lift force signal to the total force signal to provide a corrected draft force signal proportional to the draft force exerted by the implement.
- Inventors:
- Publication Date:
- OSTI Identifier:
- 6229120
- Patent Number(s):
- US 4807136
- Assignee:
- Ford Motor Co., Dearborn, MI
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: Filed date 26 Oct 1987
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FARM EQUIPMENT; CONTROL EQUIPMENT; HOISTS; HYDRAULIC EQUIPMENT; CONTROL; CYLINDERS; DYNAMIC LOADS; MANIPULATORS; OPERATION; POSITIONING; PRESSURE MEASUREMENT; RODS; SIGNALS; TRANSDUCERS; VEHICLES; EQUIPMENT; LABORATORY EQUIPMENT; MATERIALS HANDLING EQUIPMENT; REMOTE HANDLING EQUIPMENT; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes
Citation Formats
Rutkowski, D J, and McLean, D H. Draft load measurement and control. United States: N. p., 1989.
Web.
Rutkowski, D J, & McLean, D H. Draft load measurement and control. United States.
Rutkowski, D J, and McLean, D H. 1989.
"Draft load measurement and control". United States.
@article{osti_6229120,
title = {Draft load measurement and control},
author = {Rutkowski, D J and McLean, D H},
abstractNote = {An apparatus is described for providing a measurement of draft force exerted by a draft implement coupled to a tractor through at least one link arm of a hydraulic lift assembly having at least one lift rod coupled between each link arm and a hydraulic cylinder for lifting or lowering the draft implement, comprising: a force transducer coupled to the link arm for providing a total force signal related to the total force applied against the link arm; a pressure sensor coupled to the cylinder for providing a pressure signal related to cylinder pressure; position means coupled to the lift rod for providing a lift position signal related to the position of the lift rod; processing means responsive to both the pressure signal and the lift position signal for providing a component lift force signal related to the component of lift force transmitted to the link arm through the lift rod; and means for adding the component lift force signal to the total force signal to provide a corrected draft force signal proportional to the draft force exerted by the implement.},
doi = {},
url = {https://www.osti.gov/biblio/6229120},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 21 00:00:00 EST 1989},
month = {Tue Feb 21 00:00:00 EST 1989}
}