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Allison Transmission and Dana Holding license rights to NuVinci CVP technology from Fallbrook; to cooperate on engineering, manufacturing of next-gen transmissions

The NuVinci CVP is based on a set of rotating, tilting balls fitted between two rings (or discs). The transmissions includes an input ring driven by the power source; an output ring connected to the CVP output; and a set of balls, each rotating on its own axle and fitted between the input disc, output disc and a central “sun” to help maintain the balls in position. Click to enlarge.

Allison Transmission Holdings Inc., Dana Holding Corporation have formed separate strategic relationships with Fallbrook Technologies Inc. to develop, manufacture, and commercialize high-efficiency transmissions for passenger vehicles, commercial vehicles, and off-highway equipment. These next-generation transmissions will be designed to increase fuel efficiency, reduce emissions, and improve overall vehicle performance.

Under the partnerships, Fallbrook will license its NuVinci continuously variable planetary (CVP) technology (earlier post)—which enables designers to reduce the complexity of transmissions, superchargers (earlier post), and other powertrain systems and allows the engine to operate at more efficient speeds—to Allison and Dana.

Through its licensing agreement, Allison gains the exclusive right from Fallbrook to utilize its CVP technology to develop and commercialize primary drivetrain transmissions for Allison’s end markets, which could include commercial vehicles, military applications, and certain off-highway and large stationary equipment markets.

Under a separate agreement, Dana will hold an exclusive license from Fallbrook to engineer and produce transmission components and other advanced powertrain solutions with the NuVinci CVP technology for passenger and certain off-highway vehicles in the end markets that Dana serves.

For end markets Allison Transmission serves, Dana and Allison have signed a letter of intent to explore a strategic alliance through which Dana would exclusively manufacture transmission components with NuVinci CVP technology for Allison.

Fallbrook’s proprietary NuVinci CVP technology is an award-winning, traction-based class of continuously variable transmission that is scalable and highly adaptable. It controls relationships of speed and torque and is applicable to mechanical devices that have a transmission or can benefit from speed or torque variation.

The NuVinci transmission uses a set of rotating balls between the input and output components of a transmission. Tilting the balls changes their contact diameters and varies the speed ratio. Compared to other current transmission technologies, Fallbrook’s analysis indicates that its NuVinci technology is less complex, scales and packages more easily, costs less to manufacture, and facilitates achieving optimum performance.

Allison and Dana are transmission industry leaders and their investments in and adoption of our NuVinci technology represent a powerful endorsement of its readiness and value for multiple vehicle markets and other powered applications. These strategic relationships will complement our already successful bicycle drivetrain and auxiliary power unit businesses. Additionally, the further adoption of NuVinci technology is consistent with Fallbrook’s growth plans for the commercialization of accessory drive and other industrial applications.

—William G. Klehm III, Chairman and CEO of Fallbrook

Full-scale production of off-highway transmissions with NuVinci-equipped components in Dana’s served markets is expected within the next three to five years, while implementation in passenger and commercial vehicles is anticipated before the end of this decade.

Allison Transmission is the world’s largest manufacturer of fully-automatic transmissions for medium- and heavy-duty commercial vehicles, medium- and heavy-tactical US military vehicles and hybrid-propulsion systems for transit buses. Allison transmissions are used in a variety of applications including on-highway trucks (distribution, refuse, construction, fire and emergency), buses (primarily school and transit), motor homes, off-highway vehicles and equipment (primarily energy and mining) and military vehicles (wheeled and tracked).

Dana is a world-leading supplier of drivetrain, sealing, and thermal-management technologies that improve the efficiency and performance of passenger, commercial, and off-highway vehicles with both conventional and alternative-energy powertrains.



Not just for bicycles anymore


Is it better than a CVT transmission like the ones used by Toyota and Nissan ?


The geometry is inverted but otherwise it reminds me of the Nissan extroid transmission. Nissan dropped that in favour of a belt CVT ...


This design dates from Leonardo da Vinci I believe.

Making it work well, with high hp, is what is new.

They use elastohydrodynamic liquid/fluid (EHL); an EHL acts as a premium slippery lubricant – But when an EHL is squeezed between the two opposing metal surfaces, the great pressures turn it into a glassy solid for a microsecond or 2.

EHL fluids are not new either.

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