A vehicle control system that ensures a sufficient distance to empty in the event of a failure of a clutch for changing an operating mode of a vehicle. The control system is configured to: determine a reduction in performance of the clutch based on a value of a parameter for determining a performance of the clutch; and select the operating mode in which a distance to empty is longer and inhibit to actuate the engagement device, when a reduction in performance of the engagement device is determined.

A transfer case for use in a vehicle, with the vehicle including a powertrain, includes an input shaft configured to be rotatably coupled to the powertrain. The transfer case also includes a primary output shaft rotatably coupled to the input shaft, and a secondary output shaft selectively rotatably coupled to the primary output shaft. The transfer case further includes a planetary gearset disposed between and rotatably coupled to the input shaft and the primary output shaft. The transfer case also includes an input member and an electric machine. The input member is rotatably coupled to the electric machine and the input shaft to provide rotational torque from the electric machine, to the input shaft, and to the primary output shaft.

A bi-directional overrunning clutch differential is configured to transmit power from an input shaft to a first output shaft and a second output shaft in a vehicle. The differential includes a differential housing having a first bearing seat and a second bearing seat. A first bearing is carried by the differential housing in the first bearing seat, and a second bearing is carried by the differential housing in the second bearing seat. A first retaining ring secures the first bearing in the first bearing seat, and a second retaining ring secures the second bearing in the second bearing seat. A first output hub is carried by the first bearing for rotation relative to the differential housing, and a second output hub is carried by the second bearing for rotation relative to the differential housing.

A controllable one-way clutch having a clutch module and a power-operated actuator module. The clutch module includes a first clutch component rotatably driven by an input member, a second clutch component rotatably driving an output member, struts disposed on the first clutch component for movement between a deployed position engaging ratchet teeth on the second clutch component and a non-deployed position disengaged from the ratchet teeth, and strut springs for biasing the struts toward their deployed position. The power-operated actuator module includes a coil unit, an armature moveable between an engaged position whereat the armature holds the struts in their non-deployed positions when the coil unit is powered-off and a released position where the armature releases the struts when the coil unit is powered-on, and a ballramp mechanism configured to move the armature along a helical path between its engaged and released positions.

An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a first gear train that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a second carrier and a clutch engagement member. The electric powertrain further includes a sun gear in the form of a ring gear and planet gears in the form of a first output shaft. To provide a compact configuration, the first electric motor and the first gear train are sandwiched between the sun gear and the planet gears.

A vehicle control system that ensures a sufficient distance to empty in the event of a failure of a clutch for changing an operating mode of a vehicle. The control system is configured to: determine a reduction in performance of the clutch based on a value of a parameter for determining a performance of the clutch; and select the operating mode in which a distance to empty is longer and inhibit to actuate the engagement device, when a reduction in performance of the engagement device is determined.

An on-demand four-wheel drive system includes a differential for the rear axle, a differential for the front axle, and a center differential connecting to the front and rear axle differentials. All three of the differentials contain a bi-directional overrunning roller clutch to enable locking of their respective outputs. The clutches provide a superior on-demand four-wheel drive system that distributes power to each drive wheel to propel the vehicle.

An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a second electric motor that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a clutch. The electric powertrain further includes a first gear train in the form of a first planetary gear and a second gear train in the form of a second planetary gear. To provide a compact configuration, the first electric motor and second electric motor are arranged in a centerline orientation with the drive shaft.

An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a first gear train that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a second carrier and a clutch engagement member. The electric powertrain further includes a sun gear in the form of a ring gear and planet gears in the form of a first output shaft. To provide a compact configuration, the first electric motor and the first gear train are sandwiched between the sun gear and the planet gears.

A hub motor assembly includes a hub axle, a hub shell, a motor unit, a cycloidal speed reducer, and a one-way clutch unit. When an output shaft of the motor unit rotates in a first direction about an axial line, a cycloidal wheel of the cycloidal speed reducer is driven to produce an eccentric cycloidal motion relative to the axial line, to thereby drive rotation of the hub shell in the first direction. When the output shaft rotates in a second direction opposite to the first direction, the hub shell is prevented from rotating with the output shaft.