Abstract: A traction device including a ring member, a carrier, and a sun member and an electric motor, wherein the electric motor is coupled to at least one of the ring member, the carrier, and the sun member.

Abstract: A traction device including a ring member, a carrier, and a sun member and an electric motor, wherein the electric motor is coupled to at least one of the ring member, the carrier, and the sun member.

Abstract: A traction device including a ring member, a carrier, and a sun member and an electric motor, wherein the electric motor is coupled to at least one of the ring member, the carrier, and the sun member.

Abstract: A high ratio traction drive transmission includes a sun roller, a traction ring, a plurality of traction planets in contact with the sun roller and the traction ring, at least one reaction roller in contact with at least one of the traction planets, and a carrier assembly coupled to at least one of the traction planets and the at least one reaction roller. The sun roller has a first longitudinal axis and the traction ring is aligned coaxially with a second longitudinal axis, wherein the first longitudinal axis is radially offset from the second longitudinal axis.

Abstract: A traction device including a ring member, a carrier, and a sun member and an electric motor, wherein the electric motor is coupled to at least one of the ring member, the carrier, and the sun member.

Abstract: A high ratio traction drive transmission includes a sun roller, a traction ring, a plurality of traction planets in contact with the sun roller and the traction ring, at least one reaction roller in contact with at least one of the traction planets, and a carrier assembly coupled to at least one of the traction planets and the at least one reaction roller. The sun roller has a first longitudinal axis and the traction ring is aligned coaxially with a second longitudinal axis, wherein the first longitudinal axis is radially offset from the second longitudinal axis.

Abstract: Provided herein is an electric axle powertrain includind: a continuously variable electric drivetrain having a motor/generator and a ball-type continuously variable planetary having a first traction ring assembly and a second traction ring assembly in contact with a plurality of balls; a mode selection mechanism coupled to the continuously variable electric drivetrain; a differential coupled to the mode selection mechanism; a drive wheel axle operably coupled to the differential; and-a first wheel and a second wheel coupled to the drive wheel axle.

Abstract: Provided herein is a variator having a rotatable input shaft operably coupleable to a source of rotational power; a variator assembly having a first traction ring assembly and a second traction ring assembly in contact with a plurality of balls, wherein each ball of the plurality of balls has a tiltable axis of rotation, the variator assembly is coaxial with the rotatable input shaft; a first axial thrust bearing coupled to the rotatable input shaft and the first traction ring assembly; a bypass clutch coupled to the rotatable input shaft and configured to selectively engage the rotatable input shaft and the first traction ring assembly; a rotatable output shaft operably coupled to the rotatable input shaft and the second traction ring assembly; and a second axial thrust bearing coupled to the rotatable output shaft and the second traction ring assembly.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly having an array of balls, a planetary gear set coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, clutches are coupled to the gear sets to enable shifting of gear modes. In some embodiments, the speed ratio of the ball variator is adjusted in concert with the adjustment of clutches.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly having an array of balls, a planetary gear set coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, a locking clutch is operably coupled to the planetary gear set to selectively couple two of the elements of the planetary gear set during operation. Engagement of the locking clutch corresponds to a fixed ratio operating mode. Disengagement of the locking clutch corresponds to a variable ratio operating mode.

Abstract: Provided herein is a variator assembly including a first rotatable shaft operably coupleable to a source of rotational power; and a variator having a first traction ring assembly and a second traction ring assembly in contact with a plurality of balls, wherein each ball of the plurality of balls has a tiltable axis of rotation, the variator is coaxial with the first rotatable shaft, wherein the first rotatable shaft is operably coupled to a sun assembly, the sun assembly located radially inward of, and in contact with, the plurality of balls.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power can be transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly, a planetary gear set coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, clutches are coupled to the gear sets to enable synchronous shifting of gear modes. In some embodiments, clutches are coupled to chain drives to enable synchronous shifting of gear modes.

Abstract: A device for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. In some embodiments, a continuously variable drive is configured to have a ball-type variator and two planetary gear sets. Clutches selectively engage members of the variator to provide multiple modes of operation.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly having an array of balls, a planetary gearset coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, clutches are coupled to the gear sets to enable synchronous shifting of gear modes.

Abstract: Provided herein is a method and a control system for a multiple-mode continuously variable transmission having a ball planetary variator. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The transmission control module includes a CVP control module. In some embodiments, the transmission control module is configured to implement an off-road control process. The off-road control process receives a number of input signals indicative a driver's desired vehicle speed, and issues commands to adjust the variator to maintain the desired vehicle speed.

Abstract: Provided herein is a control system and method for a multiple-mode continuously variable transmission having a ball planetary variator. The control system has a transmission control module configured to receive a plurality of electronic input signals, and to determine a mode of operation from a plurality of control ranges based at least in part on the plurality of electronic input signals. The transmission control module includes a CVP control module. In some embodiments, the transmission control module is adapted to implement a vehicle launch control process. The vehicle launch control process adjust the variator based on the vehicle speed and the driver's demand.

Abstract: Provided herein is a carrier assembly for a continuously variable transmission having a plurality of balls, each ball having a ball axle, the ball axle defining a tiltable axis of rotation, a first traction ring assembly in contact with each ball, a second traction ring assembly in contact with each ball, the carrier assembly having a first carrier member substantially non-rotatable, a second carrier member configured to rotate relative to the first carrier member, and an axle capture member fixedly coupled to the first carrier member. The axle capture member is configured to selectively couple to one end of each ball axle.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. Provided herein is variator including a rotatable shaft operably coupleable to a source of rotational power and a variator assembly having a first traction ring assembly and a second traction ring assembly in contact with a plurality of balls, wherein each ball of the plurality of balls has a tiltable axis of rotation. The variator assembly is coaxial with the rotatable shaft and further includes a first axial thrust bearing coupled to the rotatable shaft and the first traction ring assembly and a second axial thrust bearing coupled to the rotatable shaft and the second traction ring assembly.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly having two arrays of balls, a planetary gearset coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, clutches are coupled to the gear sets to enable synchronous shifting of gear modes.

Abstract: Devices and methods are provided herein for the transmission of power in motor vehicles. Power is transmitted in a smoother and more efficient manner by splitting torque into two or more torque paths. A continuously variable transmission is provided with a ball variator assembly having two arrays of balls, a planetary gear set coupled thereto and an arrangement of rotatable shafts with multiple gears and clutches that extend the ratio range of the variator. In some embodiments, clutches are coupled to the gear sets to enable synchronous shifting of gear modes.