Draft load measurement and control

Patent · Tue Feb 21 00:00:00 EST 1989

OSTI ID:6229120

Rutkowski, D J; McLean, D H

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.

• Assignee: Ford Motor Co., Dearborn, MI
• Patent Number(s): US 4807136
• OSTI ID: 6229120
• Resource Relation: Patent File Date: Filed date 26 Oct 1987
• Country of Publication: United States
• Language: English

Related Subjects

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