Patent ID: 7632209

Claim:
A control system for vehicular drive system comprising: a vehicle driving power unit; a shifting power unit having a motor and two rotary shafts actuated by the motor; a controller for the motor; an input shaft connected to the vehicle driving power unit; two input gears mounted on the input shaft and capable of being engaged with and disengaged from the input shaft; a first intermediate shaft; a first driven gear mounted on the first intermediate shaft and meshing with one of the input gears; a second intermediate shaft; a second driven gear mounted on the second intermediate shaft and meshing with the other input gear; a first shift gear train mounted on the first intermediate shaft and capable of being engaged with and disengaged from the first intermediate shaft; a second shift gear train mounted on the second intermediate shaft and capable of being engaged with and disengaged from the second intermediate shaft; a third driven gear train meshing with the first and second shift gear trains; and an output shaft connected in common to the third driven gear train, wherein one shaft of the shifting power unit is connected to the vehicle driving power unit and the other shaft of the shifting power unit is connected to the first and second intermediate shafts selectively through gears.