AGRICULTURAL HARVESTER WITH PROPULSION LOAD SHIFTING BETWEEN DUAL ENGINES
First Claim
1. An agricultural harvester, comprising:
- a first power unit which is couplable with a first primary load, said first primary load including a threshing system load;
a second power unit having a threshold power output, said second power unit being couplable with a second primary load, said second primary load including a propulsion load;
a first motor/generator mechanically coupled with said first power unit;
a second motor/generator mechanically coupled with said second power unit, said second motor/generator and said first motor/generator being electrically coupled together; and
at least one electrical processing circuit coupled with each of said first motor/generator and said second motor/generator, said at least one electrical processing circuit being configured for selectively transferring electrical power from said first motor/generator to said second motor/generator, when said second power unit is one of at and above said threshold power output.
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Accused Products
Abstract
An agricultural harvester includes a first power unit which is couplable with a first primary load. The first primary load includes a threshing system load. A second power unit has a threshold power output and is couplable with a second primary load. The second primary load includes a propulsion load. A first motor/generator is mechanically coupled with the first power unit. A second motor/generator is mechanically coupled with the second power unit. The second motor/generator and the first motor/generator are electrically coupled together. At least one electrical processing circuit is coupled with each of the first motor/generator and the second motor/generator. The at least one electrical processing circuit is configured for selectively transferring electrical power from the first motor/generator to the second motor/generator, when the second power unit is at or above the threshold power output.
30 Citations
20 Claims
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1. An agricultural harvester, comprising:
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a first power unit which is couplable with a first primary load, said first primary load including a threshing system load; a second power unit having a threshold power output, said second power unit being couplable with a second primary load, said second primary load including a propulsion load; a first motor/generator mechanically coupled with said first power unit; a second motor/generator mechanically coupled with said second power unit, said second motor/generator and said first motor/generator being electrically coupled together; and at least one electrical processing circuit coupled with each of said first motor/generator and said second motor/generator, said at least one electrical processing circuit being configured for selectively transferring electrical power from said first motor/generator to said second motor/generator, when said second power unit is one of at and above said threshold power output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating an agricultural harvester, comprising the steps of:
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driving a threshing system load with a first power unit; driving a propulsion load with a second power unit, said second power unit being mechanically independent from said first power unit; driving a first motor/generator with said first power unit; driving a second motor/generator with said second power unit; detecting when said second power unit is at or above a threshold power output; and transferring electrical power from said first motor/generator to said second motor/generator, dependent upon said detection of said second power unit at or above said threshold power output. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification