Abstract: A control apparatus for a hybrid vehicle drive system, which uses electric energy stored in a battery and includes a drive mode switching portion configured to bring a clutch or a brake into an engaged state, for switching the drive system from an EV drive mode, in which a vehicle drive force is generated by at least one of first and second electric motors when a crankshaft of an engine is connected to a housing, to a constant-speed-ratio drive mode, in which the vehicle drive force is generated by at least one of the first and second electric motors when a ratio of an output speed of the drive system to a speed of a rotary motion received from the engine is constant, when an operating speed of the first or second electric motor is at or greater than a predetermined threshold value in the EV drive mode.

Abstract: A control apparatus for a hybrid vehicle drive system 10, which permits sufficient utilization of the electric energy stored in the battery and includes a drive mode switching portion 60 configured to bring a clutch CL1 or a brake BK1 into its engaged state, for switching the drive system 10 from an EV drive mode in which a vehicle drive force is generated by at least one of first and second electric motors MG1 and MG2 while a crankshaft 12a of an engine 12 is connected to a housing 26, to a constant-speed-ratio drive mode in which the vehicle drive force is generated by at least one of the first and second electric motors MG1 and MG2 while a ratio of an output speed NOUT of the drive system 10 to a speed of a rotary motion received from the engine 12 is held constant, when an operating speed NMG1, NMG2 of the first or second electric motor MG1, MG2 has been raised to a predetermined threshold value in the EV drive mode.

Abstract: A carrier is implemented which is capable of reducing the number of parts and the number of bonding steps. The carrier includes a pair of holding members that hold from both sides in an axial direction L a pinion shaft supporting a pinion gear. A first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction L toward a second holding member as the other holding member. The second holding member is a disc-like member, and has an external outer peripheral gear integrally formed in its outer peripheral portion. The coupling portion is bonded to a coupling bonding portion provided on a radially inner side R1 of the outer peripheral gear in the second holding member.

Abstract: A carrier is implemented which is capable of reducing the number of parts and the number of bonding steps. The carrier includes a pair of holding members that hold from both sides in an axial direction L a pinion shaft supporting a pinion gear. A first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction L toward a second holding member as the other holding member. The second holding member is a disc-like member, and has an external outer peripheral gear integrally formed in its outer peripheral portion. The coupling portion is bonded to a coupling bonding portion provided on a radially inner side R1 of the outer peripheral gear in the second holding member.