Patent ID: 7727099

Claim:
A vehicle driving device, comprising: a case with a case body; a transmission mechanism having hydraulically controlled frictional engaging devices; an electric motor housed in the case body; and a hydraulic controller that controls oil pressure supplied to the frictional engaging devices, with the hydraulic controller disposed on an outer wall of the case body, wherein the case body has: an opening at one end of the case body that is structured to allow the transmission mechanism and the electric motor to be inserted through the opening and to allow both the transmission mechanism and the electric motor to be mounted in one direction from the one end of the case body, and an end wall portion, having a bearing part that supports an output shaft of the transmission mechanism, that is provided at another end of the case body integrally with the case body, wherein the outer wall of the case body is a unified outer wall that has an axial length that extends from approximately the one end of the case body to the another end of the case body.