| 主权项 |
1. A park lock mechanism for a vehicle driveline component having a rotatable member, the park lock mechanism comprising:
a housing; a dog ring that is adapted to be coupled to the rotatable member for common rotation, the dog ring being received in the housing and comprising a plurality of circumferentially spaced apart teeth; a pawl having a pawl tooth, the pawl being pivotably coupled to the housing for movement about a pivot axis between a first pivot position, in which the pawl tooth is disengaged from the teeth of the dog ring so as to not impede rotation of the dog ring relative to the housing, and a second pivot position in which the pawl tooth engages the teeth of the dog ring so as to impede rotation of the dog ring relative to the housing; a pawl spring that biases the pawl toward the first pivot position; and an actuator assembly having a cam follower, a cam, a first actuator device, a second actuator device, and a cam coupling, the cam follower being coupled to the pawl for movement therewith about the pivot axis, the cam being movable along a movement axis that is parallel to the pivot axis, the cam contacting the cam follower and including a first cam portion, and a second cam portion, wherein positioning of the first cam portion on the cam follower positions the pawl in the first pivot position, and wherein positioning of the second cam portion on the cam follower positions the pawl in the second pivot position, the first actuator device comprising a first linear motor with a first output member that is movable along the movement axis between a first output member position and a second output member position, the first output member being coaxial with the cam, the second actuator device comprising a second linear motor with a second output member, the second output member being movable along the movement axis between a third output member position and a fourth output member position, the second output member being coaxial with the first output member, the cam coupling comprising a first biasing spring and a locking mechanism, the first biasing spring being configured to bias the cam in a first direction along the movement axis relative to the first output member, the locking mechanism being configured to selectively lock the cam to the first output member for axial movement therewith, the locking mechanism being configured to unlock the cam from the first output member in response to movement of the second output member from the third output member position to the fourth output member position when the first output member is in the first output member position, the locking mechanism being configured to lock the cam to the first output member in response to movement of the second output member from the fourth output member position to the third output member position when the first output member is in the first output member position. |
