Vehicle power transmission device

A vehicle power transmission device comprising:na power generation device that includes a rotating machine electrically controllable in torque; anda power distribution device including a first planetary gear device which has three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element,the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are in a collinear relationship in respect of rotation speed, and are in a line in this order in a collinear diagram of representing the collinear relationship,an operation state of the rotating machine being controlled to put the first output rotating element and the second output rotating element into a predetermined differential state, andthe power generation device including a second planetary gear device which has three rotating elements, which are coupled with a power source, the rotating machine, and the input rotating element, respectively.

A vehicle power transmission device comprising:na power generation device that includes a rotating machine electrically controllable in torque; anda power distribution device including a first planetary gear device which has three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element,the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are in a collinear relationship in respect of rotation speed, and are in a line in this order in a collinear diagram representing the collinear relationship, andthe power generation device including a second planetary gear device which has three rotating elements, which are coupled with a power source, the rotating machine, and the input rotating element, respectively.

A vehicle power transmission device comprising:na power generation device that includes a rotating machine electrically controllable in torque; anda power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element,the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are in a collinear relationship in respect of rotation speed, and are in a line in this order in a collinear diagram representing the collinear relationship,an operation state of the rotating machine being controlled to put the first output rotating element and the second output rotating element into a predetermined differential state, andthe power generation device including an electric type differential portion with the rotating machine coupled to a differential mechanism in a power transmittable manner to control a differential state between a rotation speed of a differential input member and a rotation speed of a differential output member by controlling the operation state of the rotating machine, and a power source coupled to the differential input member in a power transmittable manner, whereinthe vehicle power transmission device calculates an operational point of the rotating machine at which the first output rotating element and the second output rotating element are put into a predetermined differential state based on a vehicle traveling state to control the rotating machine to operate at the operational point.