R4, New Holland's robot for specialized crops
CNH engineers at the Modena research and development centere and the New Holland center of excellence for specialized harvesting in Coëx (near Nantes, France) have designed a new series of tool-carrying robots called R4. The manufacturer has developed two versions: Electric Power and Hybrid Power, both are equipped with transmission units and suspended rubber tracks, to maximize traction and minimize soil compaction. The two models are endowed with an “intelligent” continuously variable electric transmission.
Primarily intended for high-end narrow vineyards, the R4 Electric Power electric version is powered by a 40 kWh battery pack. The vehicle's dimensions, with a maximum height of 1.38 meters and an overall width of just 70 centimeters, allow it to work with distances between crops of between 1 and 1.5 meters. The vehicle is equipped with an ultra-compact hitch with a lifting capacity of 500 kg and is ready to power electrical equipment.
The hybrid model, on the other hand, has been designed to work in orchards and offers more power and greater autonomy than its twin, with a power-to-weight ratio – New Holland points out – double that of a conventional special tractor with similar power. Its larger dimensions (it weighs 1.4 tons and is 1.5 meters wide) compared to the electric version, still allow the hybrid model to negotiate 1.5-meter rows. The robot is powered by a 59 Hp diesel engine that can also run on plant-based fuels. When required, the R4 Hybrid Power can operate in electric mode, thanks to two 4 kWh batteries. A 540 rpm mechanical PTO with intelligent progressive clutch operates standard implements, while the 48V/12kW e-PTO socket can power electrically driven implements. The “smart” electrical tool management functions have been designed to ensure operator safety and further reduce the environmental impact of the R4 models. For example, smart spraying technology can automate flow control, header management, and engage/disengage the canopy, as well as adjust flow based on canopy height.
