A nonlinear closed-loop control combined with an integral time-delay feedback control is disclosed to adjust a speed ratio of an infinitely variable transmission (IVT) system. A speed ratio control for an IVT system involves a forward speed controller and a crank length controller for different speed ranges. The time-delay control is designed to reduce speed fluctuations of the output speed of an IVT with an accurate speed ratio. The speed ratio of an IVT with the disclosed control strategy can achieve an excellent tracking response for the desired constant output speed and reduce speed fluctuations of the output speed of an IVT by the time-delay feedback control.

A gear shifting device, for engagement to bicycle or other device, for actuating a translating to actuate sequential shifts in a gear train, is provided. A base of the device engages with one or a plurality of index plates which employ sequential detents to regulate a distance rotated by a cable spool which translates a cable to acuate shifting. The index plate may be interchanged to one having detents matching a new gear train when users change their bike configuration.

A nonlinear closed-loop control combined with an integral time-delay feedback control is disclosed to adjust a speed ratio of an infinitely variable transmission (IVT) system. A speed ratio control for an IVT system involves a forward speed controller and a crank length controller for different speed ranges. The time-delay control is designed to reduce speed fluctuations of the output speed of an IVT with an accurate speed ratio. The speed ratio of an IVT with the disclosed control strategy can achieve an excellent tracking response for the desired constant output speed and reduce speed fluctuations of the output speed of an IVT by the time-delay feedback control.

A wind turbine having a tower having a top end and a bottom end; a first eccentric mechanism connected to a turbine rotor, the turbine rotor at the top end of the tower; a second eccentric mechanism connected to an electric generator, the electric generator being at the bottom end of the tower; and a plurality of tensile links connecting the first and second eccentric mechanisms.

Disclosed are a continuously variable transmission including a plurality of input links integrated into one input link, a plurality of coupler links integrated into one coupler disk, and at least four even-numbered output gears circumscribed about at least four even-numbered output links via a clutch, wherein, even if two output gears of the at least four even-numbered output gears are put into a slip state by the clutch, the other two output gears rotate in a direction of forcibly transmitting power.

Disclosed are a continuously variable transmission including a plurality of input links integrated into one input link, a plurality of coupler links integrated into one coupler disk, and at least four even-numbered output gears circumscribed about at least four even-numbered output links via a clutch, wherein, even if two output gears of the at least four even-numbered output gears are put into a slip state by the clutch, the other two output gears rotate in a direction of forcibly transmitting power.

A wind turbine having a tower having a top end and a bottom end; a first eccentric mechanism connected to a turbine rotor, the turbine rotor at the top end of the tower; a second eccentric mechanism connected to an electric generator, the electric generator being at the bottom end of the tower; and a plurality of tensile links connecting the first and second eccentric mechanisms.

A nonlinear closed-loop control combined with an integral time-delay feedback control is disclosed to adjust a speed ratio of an infinitely variable transmission (IVT) system. A speed ratio control for an IVT system involves a forward speed controller and a crank length controller for different speed ranges. The time-delay control is designed to reduce speed fluctuations of the output speed of an IVT with an accurate speed ratio. The speed ratio of an IVT with the disclosed control strategy can achieve an excellent tracking response for the desired constant output speed and reduce speed fluctuations of the output speed of an IVT by the time-delay feedback control.

A nonlinear closed-loop control combined with an integral time-delay feedback control is disclosed to adjust a speed ratio of an infinitely variable transmission (IVT) system. A speed ratio control for an IVT system involves a forward speed controller and a crank length controller for different speed ranges. The time-delay control is designed to reduce speed fluctuations of the output speed of an IVT with an accurate speed ratio. The speed ratio of an IVT with the disclosed control strategy can achieve an excellent tracking response for the desired constant output speed and reduce speed fluctuations of the output speed of an IVT by the time-delay feedback control.

A continuously variable transmission (1) having the cams (9, 10, 11, 12) that are not circular as usual, but have the form of a spiral. The outer contours (15, 16, 7, 18) of the two cams (9, 10, 11, 12) are each situated in a plane which is perpendicular to the direction of rotation of the respective cams (9, 10, 11, 12).