| CPC A01F 15/071 (2013.01) [A01F 15/0883 (2013.01); A01F 2015/076 (2013.01); A01F 2015/0891 (2013.01)] | 9 Claims |
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1. A round baler comprising:
a baling system defining a baling chamber having an access into the baling chamber, wherein the baling system is operable to receive crop material into the baling chamber through the access and form the crop material into a bale within the baling chamber;
a wrap system operable to insert a wrap material through the access and into the baling chamber to wrap the bale, the wrap system including:
a pair of spool rollers forming a nip therebetween, wherein the pair of spool rollers are configured to rotate about respective axes of rotation in opposite rotational directions relative to each other and receive the wrap material from a supply roll through the nip;
a driver coupled to the pair of spool rollers and operable to transmit torque to the pair of spool rollers to rotate the pair of spool rollers about their respective axes of rotation;
a torque controller including a processor and a memory having a wrap feed control algorithm stored thereon, wherein the processor is operable to execute the wrap feed control algorithm to:
receive data related to a current characteristic of the supply roll related to a current weight of the supply roll of the wrap material from a sensor;
define a desired acceleration rate of the pair of spool rollers such that a leading edge of the wrap material is ejected from the nip at an ejection trajectory that is within an allowable angular range relative to a tangent of the nip, whereby the leading edge of the wrap material passes through the access and into the baling chamber:
control the driver to adjust torque transmitted to the pair of rollers to achieve the desired acceleration rate of the pair of rollers, wherein the torque from the driver is decreased as the characteristic of the supply roller related to the current weight of the supply roll of the wrap material indicates a decrease in the current weight of the supply roll.
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