Integrated torque converter and P2 module

An assembly for power transmission between an output of a drive engine and an input of a transmission, the assembly comprising:

• a torque converter having an input member, an output member and a hydrodynamic circuit coupling the input member to the output member, the torque converter defining a central axis;
• a P2 module, the P2 module including a clutch and an electric motor, the clutch having an input member configured to connect to the output of the drive engine, the clutch having an engaged position and a disengaged position, in the engaged position the input member being connected to the torque converter, in the disengaged position the input member being disengaged from the torque converter;
• and
• the electric motor having a stator and a rotor, the electric motor being coupled to the clutch and being drivingly coupled to the torque converter;
• and
• the P2 module further including a pilot hub having an inner pilot hub surface facing the central axis and defining a central bore coaxial with the central axis, with the pilot hub received within the input member of the clutch, the torque converter including a mounting hub having an outer mounting hub surface facing and slidable against the inner pilot hub surface when the mounting hub is axially received within the bore of the pilot hub and axially retained therein by a retention feature that is disposed between the inner pilot hub surface and the outer mounting hub surface and that is configured to facilitate axial insertion of the mounting hub into the pilot hub.

An assembly for power transmission between an output of a drive engine and an input of a transmission, the assembly comprising:

• a torque converter having an input member, an output member and a hydrodynamic circuit coupling the input member to the output member, the torque converter defining a central axis;
• a P2 module, the P2 module including a clutch and an electric motor, the clutch having an input member configured to connect to the output of the drive engine, the clutch having an engaged position and a disengaged position, in the engaged position the input member being connected to the torque converter, in the disengaged position the input member being disengaged from the torque converter, and the clutch including interleaved friction plates, a first set of the friction plates being rotationally fixed to an outer support plate and a second set of the friction plates being rotationally fixed to an inner support plate;
• and
• the electric motor having a stator and a rotor, the electric motor being coupled to the clutch and being drivingly coupled to the torque converter;
• and
• the torque converter further comprising a shell;
• wherein the shell of the torque converter is axially retained within the outer support plate by a retention feature;
• and
• wherein the retention feature includes a snap ring radially received within a groove formed in the shell of the torque converter.

An assembly for power transmission between an output of a drive engine and an input of a transmission, the assembly comprising:

• a torque converter having an input member, an output member and a hydrodynamic circuit coupling the input member to the output member, the torque converter defining a central axis;
• a P2 module, the P2 module including a clutch and an electric motor,
• the clutch having an input member configured to connect to the output of the drive engine, the clutch having an engaged position and a disengaged position, in the engaged position the input member being connected to the torque converter, in the disengaged position the input member being disengaged from the torque converter;
• and
• the electric motor having a stator and a rotor, the electric motor being coupled to the clutch and being drivingly coupled to the torque converter;
• and
• the P2 module further including a pilot hub having a central bore coaxial with the central axis and received within the input member of the clutch, the torque converter including a mounting hub axially received within the bore of the pilot hub and axially retained therein by a retention feature;
• wherein the electric motor is drivingly coupled to the torque converter via a splined engagement;
• and
• wherein the torque convener includes a shell having a first set, of splines provided therewith, and wherein the rotor includes a second set of splines provided therewith, the first set of splines being engaged with the second set of splines of the rotor and forming the splined engagement.