Feedrate control with slip compensation
AssigneeDeere & Company
InventorsDouglas J. Bollin, Cody W. Best
Life of this patent
Estimating the term…
Abstract
A prescribed feedrate of material through the mobile harvesting machine and an actual feedrate of material through the mobile harvesting machine are detected, and a feedrate difference between the prescribed feedrate and the actual feedrate is identified. Wheel slippage of the mobile harvesting machine is also detected. Based on the feedrate difference between the prescribed feedrate and the actual feedrate and based on the detected wheel slippage, a speed control signal that controls speed of the mobile harvesting machine is generated.
Claims20
A mobile harvesting machine, comprising:
- a propulsion system;
- feedrate control logic that identifies a feedrate difference between a prescribed feedrate of material through the mobile harvesting machine and a sensed feedrate of material through the mobile harvesting machine and that receives an indication of wheel slippage on the mobile harvesting machine and that generates a speed request signal to modify a speed of the mobile harvesting machine based on the feedrate difference and the indication of wheel slippage;
- and
- a control system that receives the speed request signal and generates a speed control signal to control the propulsion system based on the speed request signal.
A computer implemented method of controlling a mobile harvesting machine, comprising:
- identifying a prescribed feedrate of material through the mobile harvesting machine;
- detecting a feedrate of material through the mobile harvesting machine;
- identifying a feedrate difference between the prescribed feedrate and the sensed feedrate;
- detecting wheel slippage on the mobile harvesting machine;
- generating a speed request signal to adjust a speed of the mobile harvesting machine based on the feedrate difference and the indication of wheel slippage;
- and
- receiving the speed request signal at a control system and generating, at the control system, a speed control signal to control a propulsion system based on the speed request signal.
A mobile harvesting machine, comprising:
- a propulsion system;
- wheel slip detection logic configured to detect wheel slip on the mobile harvesting machine and generate a wheel slip signal indicative of the detected wheel slip;
- a feedrate detector that detects a feedrate of material through the mobile harvesting machine;
- a feedrate controller that identifies a feedrate difference between a prescribed feedrate of material through the mobile harvesting machine and the detected feedrate of material through the mobile harvesting machine and that receives the wheel slip signal and, if the feedrate difference indicates that the detected feedrate is below the prescribed feedrate by an amount, the feedrate controller generates a speed request signal to increase a speed of the mobile harvesting machine based on the wheel slip signal;
- and
- a control system that receives the speed request signal and generates a speed control signal to control the propulsion system based on the speed request signal.
A computer implemented method of controlling a mobile harvesting machine, comprising:
- identifying a prescribed feedrate of material through the mobile harvesting machine;
- detecting a feedrate of material through the mobile harvesting machine;
- identifying a feedrate difference between the prescribed feedrate and the sensed feedrate;
- detecting wheel slippage on the mobile harvesting machine;
- determining whether the detected wheel slippage is likely to increase if a wheel speed of the mobile harvesting machine is increased;
- generating an indication indicative of whether the detected wheel slippage is likely to increase if the wheel speed of the mobile harvesting machine is increased;
- generating a speed request signal to modify a speed of the mobile harvesting machine based on the feedrate difference and the indication of whether the detected wheel slippage is likely to increase;
- and
- receiving the speed request signal at a control system and generating, at the control system, a speed control signal to control a propulsion system based on the speed request signal.
Dependencies are inferred from the claim text.