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Prestige Electric Car PrestigeElectricCar The electric drive is not only for future urban mobility, than also for agricultural applications. […]
ZF presents electric drive to agricultural products
16 November 2015

ZF presents electric drive to agricultural products

The electric drive is not only for future urban mobility, than also for agricultural applications. ZF Friedrichshafen demonstrate this by showcasing innovative products for agricultural equipment and machinery, including a new electric wheel drive.



The innovative drive concept can be used for a wide range of applications. Electrically driven axle systems for trailers and slurry tankers as well as electrically driven stabilizer wheels for ploughs are just a few examples. With the electrically driven wheel hub units ZF engineers in Passau have developed an innovative driveline solution tailored to professional agricultural applications with the most stringent requirements.

And the benefits for the farmer? Splitting the drive power between the tractor and trailer or implement provides major benefits in difficult driving situations, such as when moving across a slope. The dynamically controlled traction assistance from the electric drive enables the tractor to work under the most grueling conditions. Consequently, the fields can be cultivated during adverse weather conditions and where the ground is soft under foot. The time frames available to the farmer for field work are therefore significantly lengthened.

The electric drive is provided by a fluid-cooled three-phase asynchronous motor with a high power density and a downstream transmission stage. The motor is integrated in the wheel hub unit to save space. The system can also be optionally fitted with a wheel brake. The rated voltage is 400 V. The motor power and drive torque are sufficient for most agricultural machinery requirements.

The electric drive is provided by a fluid-cooled three-phase asynchronous motor with a high power density and a downstream transmission stage. The motor is integrated in the wheel hub unit to save space. The system can also be optionally fitted with a wheel brake. The rated voltage is 400 V. The motor power and drive torque are sufficient for most agricultural machinery requirements.

ZF has been involved with drivetrain electrification for tractors for many years and also already has related products in its portfolio. The ZF-TERRA+ branded system is an integrated generator solution in the ZF-TERRAMATIC transmission. It can be used as a power source for electrical consumers such as implements on the tractor. On-demand operation of powered auxiliaries supports fuel savings of around five percent with the tractor, combined with a simultaneous improvement in CO2 emissions, performance, and drawbar power.

With a total of eight models the new TPT range (TERRAPOWER Transaxle) covers power levels from 65 hp to 320 hp.

ZF-TERRA+ is available in several variants. The addition of an energy-storage device, such as a hybrid battery, converts the ZF-TERRA+ system into a powerful parallel mild-hybrid system. This upgrade paves the way for additional hybrid functions such as stop/start with powered auxiliaries, short-term boost of the engine, and engine calming. The extension of the generator system to a hybrid system further improves fuel consumption, exhaust emissions, and performance, when used in combination with intelligent energy management. The integration of TERRA+ into the tractor transmission opens up a wealth of enhanced functions (full-hybrid system).

ZF supplies manufacturers of agricultural machinery with complete electrification systems as one-stop solutions. These solutions comprise not only individual components, but also energy management, i.e. the optimized interplay of generator, combustion engine, and electrical auxiliaries. Optimally matched transmission and energy management, as provided by ZF, is a core competence in the market for electrified drivetrains. ZF can draw on its longtime experience in vehicle management with CV and passenger-car hybrid projects.



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