John Deere 8R 410 now available with eAutoPowr

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The world’s first electric infinitely variable transmission with electro-mechanical power split is now an option for the top of the range 8R 410 and is available for all three John Deere 8R wheeled, 8RT and 8RX models.

This is a significant step in John Deere’s journey towards electrification which has been developed in partnership with Joskin. The entirely new transmission concept, inclusive of an e-port for implements, was awarded a gold medal at Agritechnica 2019 by the DLG (the German Agricultural Society).

After many years of research and development in the space of electrification, John Deere has now found a durable solution, offering an infinitely variable transmission in the horsepower class above 400hp. Not only does it have increased durability, but it also positively impacts the overall performance.

For the new eAutoPowr, John Deere has completely replaced the hydraulic components with an electric power path. The two brushless electric motors are virtually wear-free and powertrain durability exceeds any other concepts previously offered in the industry. Moreover, this simplifies the design of the transmission and allows real time remote technical diagnosis.

The electric drive is designed in such a way that it not only supplies the drive, but also provides up to 100kW of electrical power for external implements via 480V variable-frequency three-phase alternating current (AC). A first application has been developed by John Deere together with Joskin.

In combination with the Joskin axle drive, two axles of the slurry tanker are driven electrically and thus the weight of the tanker is utilised for traction. This means increased traction, less slippage and precise tracking.

The tractor can perform at optimum with less ballast or further increase productivity by having the ability to operate wider implements with the same tractor. With the help of the eDrive, the electric drive is activated to prevent any wheel slip from occurring. The slip limit can be set by the driver. This allows the system to support the tractor permanently or only in certain situations, for example, when going uphill.

In addition to the technical innovations, driving comfort is not neglected. In the already very quiet driver’s cabin, the noise level is reduced even further. The driver also benefits from the fine speed control and improved acceleration. Since speeds of up to 5 km/h are driven completely electrically, a fast and very smooth transition is possible.

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