Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.

Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.

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: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.

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: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.

Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in operating mode of an IVT. In another embodiment, a control system includes a drive clutch coupled to a source of rotational power; the drive clutch is configured to selectively engage a traction ring and a carrier of the IVT. The control system includes a one-way clutch assembly configured to selectively engage the traction ring and the carrier. In some embodiments, the control system governs the actuation of the one-way clutch to selectively lock and unlock components of the IVT. In some embodiments, the control system implements an IVT mode wherein the carrier selectively couples to a source of rotational power. In other embodiments, the control system implements a CVT mode wherein the traction ring selectively couples to a source of rotational power.

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 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 dual pinion 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, a launch gear CVP bypass enables is provided.

Abstract: A control system for a vehicle having an infinitely variable transmission (IVT) having a ball planetary variator (CVP), providing a smooth and controlled operation. In some embodiments, the control system implements a rollback prevention sub-module. The rollback prevention sub-module is adapted to receive a number of signals, for example, a signal indicative of a transmission output shaft speed and a signal indicative of a commanded CVP shift actuator position. In some embodiments, the rollback prevention sub-module determines a correction value to be applied to the commanded CVP shift actuator position. The correction value is based at least in part on the transmission output shaft speed signal. In some embodiments, the rollback prevention sub-module is adapted to monitor and determine the deactivation of a CVP shift actuator.

Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in operating mode of an IVT. In another embodiment, a control system includes a drive clutch coupled to a source of rotational power; the drive clutch is configured to selectively engage a traction ring and a carrier of the IVT. The control system includes a one-way clutch assembly configured to selectively engage the traction ring and the carrier. In some embodiments, the control system governs the actuation of the one-way clutch to selectively lock and unlock components of the IVT. In some embodiments, the control system implements an IVT mode wherein the carrier selectively couples to a source of rotational power. In other embodiments, the control system implements a CVT mode wherein the traction ring selectively couples to a source of rotational power.

Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in operating mode of an IVT. In another embodiment, a control system includes a drive clutch coupled to a source of rotational power; the drive clutch is configured to selectively engage a traction ring and a carrier of the IVT. The control system includes a one-way clutch assembly configured to selectively engage the traction ring and the carrier. In some embodiments, the control system governs the actuation of the one-way clutch to selectively lock and unlock components of the IVT. In some embodiments, the control system implements an IVT mode wherein the carrier selectively couples to a source of rotational power. In other embodiments, the control system implements a CVT mode wherein the traction ring selectively couples to a source of rotational power.

Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in operating mode of an IVT. In another embodiment, a control system includes a drive clutch coupled to a source of rotational power; the drive clutch is configured to selectively engage a traction ring and a carrier of the IVT. The control system includes a one-way clutch assembly configured to selectively engage the traction ring and the carrier. In some embodiments, the control system governs the actuation of the one-way clutch to selectively lock and unlock components of the IVT. In some embodiments, the control system implements an IVT mode wherein the carrier selectively couples to a source of rotational power. In other embodiments, the control system implements a CVT mode wherein the traction ring selectively couples to a source of rotational power.

Abstract: A compact structure is provided for a continuously variable transmission, which provides a more direct application of both load and control forces at the pivot trunnion. Load forces are produced from within the pivot trunnion, providing more direct control over load forces and their effect on contact forces between traction rollers and toric discs. Control forces which establish the desired transmission ratio are applied to the pivot trunnion in a manner which substantially eliminates twisting and squirming of the support rollers. High efficiency in operation, and improved assembly is provided with the compact structure disclosed.