Fallbrook Technologies’ NuVinci Delta Series is a line of accessory drives and primary transmissions designed to increase fuel efficiency and vehicle performance. The NuVinci Delta Series optimizes system operation by using the company’s continuously variable planetary (CVP) technology. The CVP is applicable to machines that use a transmission, including light electric vehicles, automobiles, and agricultural equipment. Instead of the traditional gear-and-clutch mechanisms found in conventional transmissions, the NuVinci products leverage a set of rotating spheres that are arranged around a central "sun" that transfers torque between two rings. Tilting the spheres changes their contact diameters on the rings, permitting an infinite progression of speed ratios. The result, according to the company, is a smooth, seamless, and continuous transition to any ratio within its range, maximizing overall powertrain efficiency and ride quality.