TWO-WHEEL/FOUR-WHEEL DRIVE SWITCHING DEVICE FOR VEHICLE

摘要

To provide a two-wheel/four-wheel drive switching device for a vehicle which can reduce the generation of noise and can greatly suppress the power consumption. The two-wheel/four-wheel drive switching device includes a switching unit provided in either a power transmitting mechanism interposed between an engine and front wheels or a power transmitting mechanism interposed between the engine and rear wheels for switching between the continuation and interruption of power transmission in the power transmitting mechanism, and a control unit for controlling the switching unit. The control unit detects a drive current supplied to the switching unit and performs variable duty control to maintain the drive current at a given value.