Patent ID: 8103419

Claim:
A driving force transmission device, provided between two members arranged to be relatively rotatable and transferring a rotation driving force of a drive source for a vehicle to a wheel, capable of controlling a transfer torque between the two members, the driving force transmission device comprising: a controller including a transfer torque command value calculation section which calculates a transfer torque command value indicating a command value of the transfer torque between the two members based on a running state of the vehicle; an energy calculation section which calculates an energy value obtained by multiplying the transfer torque between the two members by a differential rotation rate between the two members at every predetermined sampling time; an energy accumulated value calculation section which calculates an energy accumulated value of accumulating the energy value calculated at every predetermined sampling time; a map storage section which stores a map defining a relationship between the energy accumulated value and a correction torque; and a correction section which acquires the correction torque by applying the energy accumulated value calculated by the energy accumulated value calculation section to the map and corrects the transfer torque command value calculated by the transfer torque command value calculation section based on the acquired correction torque.