MOTOR DRIVEN TRANSFER CASE WITH MODULAR ACTUATION

摘要

A transfer case (30) and a method of assembly in an all-wheel drive vehicle can include a range shifting assembly (60) for shifting between a low-range and high-range drive mode, a normally disengaged clutch assembly (80) for transferring drive torque to a first and second driveline, a clutch actuator (88), and an actuating gear (48). The clutch actuator (88) can be moveable between an expanded position and a contracted position and engageable with the clutch assembly (80) for engaging the clutch assembly (80) when in the expanded position. The actuating gear (48) can be reversibly rotatable through a predetermined angular arc of movement for operating the clutch actuator (88) between the contracted and expanded position for actuating the clutch assembly (80) and for shifting the range shifting assembly (60) between a low-range drive mode and a high-range mode when the clutch assembly (80) is in the disengaged position.

主权项

1. In a transfer case (30) of a motor vehicle including an input shaft (34) having a primary axis of rotation, a first output shaft (36), a second output shaft (38), and a power transmission device (40) located between the first output shaft (36) and the second output shaft (38), the improvement comprising:
a range shifting assembly (60) connected between the input shaft (34) and the first output shaft (36) for shifting between a low-range drive mode and a high-range drive mode of operation; a normally disengaged clutch assembly (80) connected to the power transmission device (40) and moveable between an engaged position and a disengaged position to transfer into and out of a state creating driving continuity for transferring drive torque between the first output shaft (36) and the second output shaft (38); a clutch actuator (88) moveable between an expanded position and a contracted position and engageable with the clutch assembly (80) for engaging the clutch assembly (80) when in the expanded position; and an actuating gear (48) reversibly rotatable through a predetermined angular arc of movement for operating the clutch actuator (88) between the contracted position and the expanded position for actuating the clutch assembly (80) between the disengaged position and the engaged position, and for shifting the range shifting assembly (60) between the low-range drive mode and the high-range drive mode when the clutch assembly (80) is in the disengaged position.