DRIVE FORCE TRANSMISSION DEVICE FOR ELECTRIC VEHICLE

摘要

The purpose of the invention is to reduce the number of parts and improve assembly work when assembling oil pump sprocket and a resolver rotor that are disposed adjacent to each other in a drive system. The drive force transmission device for a hybrid vehicle is provided with: a motor shaft (4); a transmission input shaft (5); a drive side sprocket (51) that rotatably drive an oil pump (O/P); a resolver rotor (12) that detects the rotational position of the motor/generator (9); and a cylindrical resolver retainer (14). The drive-side sprocket (51) (transmission input shaft (5)) and resolver rotor (12) (motor shaft (4)) are disposed at adjacent positions. The resolver retainer (14) is disposed on the motor shaft (4) on the concentric axis and supports and fixes the resolver rotor (12) on the motor shaft (4). Bringing the inner surface (14a) into contact with the shaft end (4a) of the motor shaft (4) configures said inner surface, which is in contact with the shaft end (4a), to be the axial direction positioning surface for the resolver rotor (12). The retainer has a stopper (14c), the outer end face (14b) of which serves as an axial direction position-regulating surface for the drive-side sprocket (51).