US 2014/0277877 A1 · Control and Operator Interface For Combine Having Hybrid Drive

Abstract

Methods are provided to operate a battery electric drive for a combine to ensure battery charge sufficiency during operation of the drive. One method includes monitoring the actual state of charge (SOC) of the battery pack during combine operation; calculating a running average of the actual SOC over a selected time interval; and adjusting the combine power when the running average SOC deviates from a target SOC. Another method differs in that actual SOC is compared to a bell curve of time related SOC measurements having a mean and standard deviations and only adjusts the combine power when an actual SOC measurement is outside the target SOC by an amount greater than the standard deviations. An operator display includes hybrid system power, RPM gauge, a SOC gauge and a battery pack direction flow of power.

Claims14

Dependent claims

A method of operating a hybrid electric drive for a combine, comprising:

establishing a target state of charge of an electrical energy storage device of the combine;
monitoring actual state of charge of the electrical energy storage device during combine operation;
calculating a running average of the actual state of charge over a selected time interval;
and
when the running average is less than the target state of charge, decreasing combine power.

2 more elements

Dependencies are inferred from the claim text.

Control and Operator Interface For Combine Having Hybrid Drive

Life of this patent

Control and Operator Interface For Combine Having Hybrid Drive

Life of this patent

Abstract

Claims14