A coupling comprises a pair of clutch end members, a clutch center member disposed between the clutch end members, and an actuator coupled to one of the end members. Each end member includes concentric V-grooves disposed on a respective face thereof. The center member is axially movable between the end members, and includes a pair of opposing surfaces. One of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of one of the end members. Another of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of another of the end members. The actuator is configured to simultaneously couple the end members to the center member by urging the V-grooves of both of the end members into engagement with the V-grooves of the center member.

A coupling comprises a pair of clutch end members, a clutch center member disposed between the clutch end members, and an actuator coupled to one of the end members. Each end member includes concentric V-grooves disposed on a respective face thereof. The center member is axially movable between the end members, and includes a pair of opposing surfaces. One of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of one of the end members. Another of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of another of the end members. The actuator is configured to simultaneously couple the end members to the center member by urging the V-grooves of both of the end members into engagement with the V-grooves of the center member.

A clutch that has a synchronizer for matching a rotational velocity of a drive input with a rotational velocity of a driven output prior to engagement of a locking mechanism.

A clutch that has a synchronizer for matching a rotational velocity of a drive input with a rotational velocity of a driven output prior to engagement of a locking mechanism.

A multi-mode hybrid module includes a fluid coupling, an electric motor and a first clutch. The fluid coupling includes a fluid coupling housing, an impeller drivingly connected to the fluid coupling housing, and a turbine arranged for driving connection to a transmission input shaft. The electric motor includes a nonrotatable stator and a rotatable rotor including a rotor carrier. The first clutch is arranged to drivingly connect the rotor carrier directly to the transmission input shaft. In some example embodiments, the first clutch is a dog clutch. In some example embodiments, the multi-mode hybrid module includes a first clutch actuator. The first clutch has an axially slidable sleeve arranged to selectively rotationally connect the rotor carrier and the transmission input shaft, and the first clutch actuator is arranged to displace the axially slidable sleeve to connect and disconnect the rotor carrier and the transmission input shaft.

A multi-mode hybrid module includes a fluid coupling, an electric motor and a first clutch. The fluid coupling includes a fluid coupling housing, an impeller drivingly connected to the fluid coupling housing, and a turbine arranged for driving connection to a transmission input shaft. The electric motor includes a nonrotatable stator and a rotatable rotor including a rotor carrier. The first clutch is arranged to drivingly connect the rotor carrier directly to the transmission input shaft. In some example embodiments, the first clutch is a dog clutch. In some example embodiments, the multi-mode hybrid module includes a first clutch actuator. The first clutch has an axially slidable sleeve arranged to selectively rotationally connect the rotor carrier and the transmission input shaft, and the first clutch actuator is arranged to displace the axially slidable sleeve to connect and disconnect the rotor carrier and the transmission input shaft.

A power transmission apparatus of a hybrid electric vehicle includes an input shaft configured of receiving an engine torque, a motor shaft configured of receiving a torque of a motor/generator, first and second planetary gear sets respectively having first to third rotation elements and fourth to sixth rotation elements, a first shaft connected to the first rotation element and selectively connectable to each of the input shaft and the motor shaft, a second shaft fixedly connecting the second and fifth rotation elements, and selectively connectable to the input shaft, the motor shaft, and a transmission housing, respectively, a third shaft fixedly connecting the third and fourth rotation elements and selectively connectable to the transmission housing, a fourth shaft fixedly connecting the sixth rotation element and an output gear, and a plurality of engagement elements including at least one clutch and at least one brake.

A power transmission apparatus of a hybrid electric vehicle includes an input shaft configured of receiving an engine torque, a motor shaft configured of receiving a torque of a motor/generator, first and second planetary gear sets respectively having first to third rotation elements and fourth to sixth rotation elements, a first shaft connected to the first rotation element and selectively connectable to each of the input shaft and the motor shaft, a second shaft fixedly connecting the second and fifth rotation elements, and selectively connectable to the input shaft, the motor shaft, and a transmission housing, respectively, a third shaft fixedly connecting the third and fourth rotation elements and selectively connectable to the transmission housing, a fourth shaft fixedly connecting the sixth rotation element and an output gear, and a plurality of engagement elements including at least one clutch and at least one brake.

A first rotating shaft (22) and a second rotating shaft (43) are connected in a state of being capable of transmitting rotation by the engagement of a first pawl portion(38) of a piston (32) and a second pawl portion(47) of the second rotating shaft (43) based upon the delivery of hydraulic oil to an oil chamber (37). The first pawl portion(38) of the piston (32), when being engaged with the second pawl portion(47) of the second rotating shaft (43) based upon the delivery of hydraulic oil to an oil chamber (37), is engaged with a third pawl portion(52) of a synchronizer ring (51) prior to the engagement with the second pawl portion(47). Engagement surfaces of the first pawl portion(38) and the second pawl portion(47) are formed as inclination surfaces so that a force is applied to the first pawl portion(38) and the second pawl portion(47)in a direction of axially moving away from each other when the rotation is transmitted between the first rotating shaft (22) and the second rotating shaft (43).

Methods and systems for a vehicle transmission are provided herein. The vehicle transmission includes an input interface configured to mechanically couple to a motive power source. The vehicle transmission further includes a first disconnect device releasably mechanically coupling a first output to a first drive axle and a second disconnect device releasably mechanically coupling a second output to a second drive axle.