Patent ID: 8936524
Filing Date: 2015-01-20
Classification: F16H,Y10T

Abstract:
1. A gear shift control system, comprising: an output mechanism coupled to a vehicle transmission; a first drive member coupled to the output mechanism to drive the output mechanism to shift between gears of the transmission; a drivetrain that interconnects the drive member and the output mechanism so that the output mechanism is driven by the drive member through the drivetrain, the drivetrain includes a first input driven by the drive member during a first mode of operation of the gear shift control system and an output coupled to both the first input and the output mechanism to drive the output mechanism as commanded by the drive member, and during a second mode of operation of the gear shift control system a second input is coupled to the output; a second drive member coupled to the second input to drive the output mechanism through the second input and the output during said second mode of operation to cause a transmission gear shift; and a lock associated with the second input, wherein the lock includes a torsion spring that selectively prevents movement of the second input and has a first end and a second end held in place during the first mode of operation to prevent movement of the second input, and wherein during the second mode of operation the second end of the spring is moved to relieve the locking force on the second input and permit movement of the second input.