Hybrid vehicle power transmission device

摘要

A power transmission device of a hybrid vehicle comprises: an electric differential portion having a first rotating element coupled to an engine, a second rotating element coupled to a first rotator, and a third rotating element coupled to a second rotator, the second rotator being disposed in a power transmission path including the third rotating element between the engine and drive wheels, the second rotator having a rotor shaft interposed in series in the power transmission path, a rotor of the second rotator being fixed, and making up a portion of the power transmission path.

主权项

1. A power transmission device of a hybrid vehicle comprising: an electric differential portion having a first rotating element coupled to an engine, a second rotating element coupled to a first electric motor, and a third rotating element coupled to a second electric motor, the second electric motor being disposed in a power transmission path including the third rotating element between the engine and drive wheels,
the second electric motor having a rotor shaft interposed in series in the power transmission path, and making up a portion of the power transmission path, the rotor shaft of the second electric motor having a pair of inner circumferential spline teeth formed respectively on both end portions thereof, and the pair of the inner circumferential spline teeth being respectively spline-fitted to a member positioned upstream of the second electric motor and a member positioned downstream of the second electric motor in the power transmission path.