A drive axle system having a one-way freewheel clutch. The one-way freewheel clutch is configured to transmit torque between first and second axle assembles when an interaxle differential unit is unlocked. The one-way freewheel clutch transmits torque to one of the first axle assembly and the second axle assembly when the interaxle differential unit is locked.

An automatic torque transmission with one or more stages, where each stage has a number of available gear ratios. There is a planetary gear train comprising a planet gear on a planet gear carrier, a sun gear, and a ring gear, wherein an input to the planetary gear train is through the planet gear carrier, and wherein the planet gear is configured to drive the sun gear at higher speed and lower torque, and the ring gear at lower speed and higher torque. There is a first differential gear train having a first input side, a second input side, and an output, wherein the sun gear is coupled to the first input side of the first differential gear train and the ring gear is coupled to the second input side of the first differential gear train, thereby combining two inputs into a single output. A brake clutch is configured to be selectively coupled to the ring gear, to provide selective braking of the ring gear so as to selectively transfer drive from the ring gear to the sun gear. A one-way clutch is configured to be selectively engaged or disengaged from the sun gear, to selectively prevent rotation of the sun gear in one direction. The output of the differential gear train is coupled to either another stage of the transmission or to an output differential gear train. The output differential gear train is configured to be locked for forward drive or coupled to a housing for reverse drive. With the one-way clutch disengaged the sun gear will freewheel by rotating in reverse, with no output.

An automatic torque transmission with one or more stages, where each stage has a number of available gear ratios. A planetary gear train includes a planet gear, a sun gear, and a ring gear. The planet gear is configured to drive the sun gear at higher speed and lower torque, and the ring gear at lower speed and higher torque. The sun gear is coupled to an input of a differential gear train. The ring gear is coupled to a different input of the differential gear train. A brake clutch can be selectively coupled to the ring gear, to provide selective braking of the ring gear so as to selectively transfer drive from the ring gear to the sun gear.

An automatic torque transmission with one or more stages, where each stage has a number of available gear ratios. There is a planetary gear train comprising a planet gear on a planet gear carrier, a sun gear, and a ring gear, wherein an input to the planetary gear train is through the planet gear carrier, and wherein the planet gear is configured to drive the sun gear at higher speed and lower torque, and the ring gear at lower speed and higher torque. There is a first differential gear train having a first input side, a second input side, and an output, wherein the sun gear is coupled to the first input side of the first differential gear train and the ring gear is coupled to the second input side of the first differential gear train, thereby combining two inputs into a single output. A brake clutch is configured to be selectively coupled to the ring gear, to provide selective braking of the ring gear so as to selectively transfer drive from the ring gear to the sun gear. A one-way clutch is configured to be selectively engaged or disengaged from the sun gear, to selectively prevent rotation of the sun gear in one direction. The output of the differential gear train is coupled to either another stage of the transmission or to an output differential gear train. The output differential gear train is configured to be locked for forward drive or coupled to a housing for reverse drive. With the one-way clutch disengaged the sun gear will freewheel by rotating in reverse, with no output.

A differential assembly for a vehicle includes: an input member; a first output member and a second output member; a differential mechanism for differentially distributing a driving force inputted by the input member to the first output member and the second output member; a differential case that accommodates the differential mechanism; and a clutch mechanism for selectively transmitting power between the input member and the differential case, the clutch mechanism having a first engaging member and a second engaging member to be releasably connected to one another such that the clutch mechanism is in a coupled state when the first engaging member and the second engaging member are engaged, and the clutch mechanism is in a decoupled state when the first engaging member and the second engaging member are disengaged. The first engaging member includes at least one cavity in which a recess is arranged.

A product may include a case, and a shaft that rotates may extend into the case. A bearing may support the shaft at the case. A seal may be positioned around the shaft outboard from the bearing. The bearing may have a first side facing the seal and a second side facing away from the seal. The case may define an inlet to an area between the bearing and the seal. A baffle may extend over the inlet on the second side and radially outside the bearing.

Some embodiments of the present invention provide a control system configured to control a driveline of a motor vehicle to operate in a selected one of a plurality of configurations, the system comprising at least one sensor for sensing an environment ahead of the vehicle and generating a sensor signal in dependence on the environment, the system being configured to cause the driveline to operate in a configuration selected in dependence at least in part on the sensor signal.

An all-terrain vehicle includes a frame including a front frame part and a separate rear frame part connected to the front frame part via frame joints. A surface is supported by one of the front frame part and the rear frame part. An engine is supported by the rear frame part and is positioned behind the seating surface. Front wheels operably coupled to the front frame part are drivingly coupled to the engine via a front drive unit. Rear wheels operably coupled to the rear frame part are drivingly coupled to the engine via a rear drive unit. A brake system is mounted to the frame and includes front wheel brakes and rear wheel brakes. The brake system further includes a brake modulator and a master brake cylinder operably connected to the brake modulator. The brake modulator is mounted to the front frame part.

An all-terrain vehicle includes a frame including a front frame part and a separate rear frame part connected to the front frame part via frame joints. A surface is supported by one of the front frame part and the rear frame part. An engine is supported by the rear frame part and is positioned behind the seating surface. Front wheels operably coupled to the front frame part are drivingly coupled to the engine via a front drive unit. Rear wheels operably coupled to the rear frame part are drivingly coupled to the engine via a rear drive unit. A brake system is mounted to the frame and includes front wheel brakes and rear wheel brakes. The brake system further includes a brake modulator and a master brake cylinder operably connected to the brake modulator. The brake modulator is mounted to the front frame part.

A venting arrangement for use with power transfer assemblies of the type used in motor vehicle driveline and drivetrain applications includes a vent oil deflector assembly. The vent oil deflector assembly is associated with an inside wall within an enclosed chamber and is configured to deflect lubricating oil splashed within the chamber away from an air venting passageway. The deflection feature and the venting feature are integrated into a common assembly.