Patent ID: 8126622

Claim:
A control device for a vehicular power transmitting apparatus, wherein the vehicular power transmitting apparatus comprises (i) an electrically controlled differential portion including a differential mechanism, composed of a plurality of rotary elements, whose differential state is controlled upon controlling an operating state of a differential-action controlling electric motor connected to one of the plurality of rotary elements in a power transmissive state, and (ii) a differential-state switching device configured to selectively switch the differential mechanism into a non-differential state for disenabling a rotation of a certain rotary element among the plurality of rotary elements or causing a whole of the plurality of rotary elements to move in a unitary rotation and a differential state for permitting the plurality of rotary elements to rotate relative to each other to initiate a differential action; and the control device is configured to alter a differential-mechanism switching condition for determining whether to switch the differential mechanism to the non-differential state or the differential state depending on a kind of fuel used in an internal-combustion engine connected to the vehicular power transmitting apparatus in the power transmissive state, wherein the differential-state switching device switches the differential mechanism to the non-differential state, using an engagement of a mechanical coupling device, by disenabling the rotation of the certain rotary element among the plurality of rotary elements or causing the whole of the plurality of rotary elements to move in the unitary rotation.