Patent ID: 8448541

Claim:
A hybrid drive speed change device, comprising: a friction engagement device having an input-side member drivably coupled to an internal combustion engine, an output-side member drivably coupled to a speed change mechanism, and an engagement mechanism that selectively drivably couples the input-side member and the output-side member to each other; a rotary electric machine having a rotor drivably coupled to the output-side member; a rotation sensor that detects a rotational angle of the rotor; an oil pump that generates a hydraulic pressure for supplying oil to at least one of the speed change mechanism and the friction engagement device; the speed change mechanism; and an input shaft serving as a shaft that drivably couples the speed change mechanism and the output-side member to each other, wherein the rotary electric machine is disposed coaxially with the input shaft, and includes a stator and the rotor provided radially inwardly of the stator, the oil pump includes a pump case in which a pump chamber is formed, and a pump rotor rotatably housed in the pump chamber, the pump rotor is disposed coaxially with the input shaft, and the rotation sensor is disposed radially outwardly of the pump chamber and radially inwardly of the stator of the rotary electric machine, and disposed to overlap the oil pump as seen from a radial direction of the input shaft, wherein the rotary electric machine, the oil pump, and the rotation sensor are each disposed coaxially with one another.