Dana Unveils VariGlide CVP Transmission Technology
Less than two years after first announcing a strategic relationship with Fallbrook Technology aimed at developing a range of next-generation transmissions for off-highway applications, Dana Holding Corp. unveiled a new transmission concept incorporating Fallbrook’s NuVinci continuously variable planetary (CVP) technology.
Unveiled at CeMAT in Hannover, Germany, the VariGlide transmission design incorporates the NuVinci CVP technology that will be integrated into a variety of power paths to optimize the transmission assembly, significantly reducing fuel consumption and maximizing performance, Dana said.
This design, Dana said, can replace the torque converter in some transmission configurations to decouple engine speed from the vehicle’s travel or working speed. Suitable for the rapid acceleration, deceleration and precise positioning required by material handling applications, it also eliminates the need for forward and reverse clutches while reducing overall engine speeds, allowing the engine to operate at its optimum efficiency level and reduce noise levels, Dana said.
Numerous powersplit power path concepts for forklift truck applications have been analyzed and the company said initial simulations show projected fuel savings of up to 20% for a standard-sized forklift truck operating in a typical pick-and-place duty cycle. Dana is currently upfitting a 2.2-tonne forklift truck with VariGlide technology for functional evaluation.
VariGlide technology will be offered as a pre-assembled module providing a standard powersplit configuration for forklift truck transmissions produced by original-equipment manufacturers. Dana will also implement VariGlide technology in a premium configuration optimized to supply further fuel efficiency and productivity gains in select Spicer powershift transmissions.
The CVP technology used by VariGlide has undergone more than 70,000 hours of durability testing, and leverages more than 600 U.S. and international patents and patent applications. In addition to forklift trucks, it is optimal for compact front end loaders, skid-steer loaders, and compact utility tractors, Dana said.