System for distributing particulate material from an agricultural machine
AssigneeCNH Industrial America LLC
InventorsRex Ruppert, David Hafvenstein
Life of this patent
Estimating the term…
Abstract
A system for distributing particulate material from an agricultural machine includes a fan configured to provide an airflow in a supply line for distributing particulate material, a hydraulic system configured to drive the fan at a plurality of fan speeds, and a control system configured to control the hydraulic system. The control system executes a program stored in a non-transient medium operable to: determine a given product application rate for distributing the particulate material; determine a given ground speed of the agricultural machine; determine a fan speed for achieving the given product application rate at the given ground speed; and control the hydraulic system to drive the fan at the fan speed.
Claims11
A system for distributing particulate material from an agricultural machine, the system comprising:
- a fan configured to provide an airflow in a supply line for distributing particulate material;
- a hydraulic system configured to drive the fan at a plurality of fan speeds, the hydraulic system comprising:
- a hydrostatic drive arrangement including a variable axial piston pump;
- and
- a control system configured to control the hydraulic system, the control system executing a program stored in a non-transient medium operable to:
- determine a given product application rate for distributing the particulate material;
- determine a given ground speed of the agricultural machine;
- determine a fan speed for achieving the given product application rate at the given ground speed;
- and
- control the hydraulic system to drive the fan at the fan speed.
A system for distributing particulate material from an agricultural machine, the system comprising:
- a fan configured to provide an airflow in a supply line for distributing particulate material;
- a hydraulic system configured to drive the fan at a plurality of fan speeds, the hydraulic system comprising:
- a hydraulic motor;
- a hydrostatic drive arrangement including a variable axial piston pump configured to drive the hydraulic motor;
- a solenoid configured to control displacement of the variable axial piston pump;
- and
- a control system configured to control the hydraulic system, the control system executing a program stored in a non-transient medium operable to:
- determine a given product application rate for distributing the particulate material;
- determine a given ground speed of the agricultural machine;
- determine a fan speed for achieving the given product application rate at the given ground speed;
- and
- control the hydraulic system via a Pulse Width Modulation (PWM) signal to the solenoid to drive the fan at the fan speed.
Dependencies are inferred from the claim text.