Patent ID: 8924105

Claim:
A method for reducing a speed of a vehicle in motion, the vehicle including wheels, a wheel brake, a controller, and a transmission having an output member and a parking sprag assembly coupled to the output member, the method comprising: monitoring, via the controller, a vehicle speed; initiating a vehicle stop request in response to a vehicle signal received by the controller; determining if the vehicle speed is less than or equal to a first vehicle speed threshold; applying the wheel brake in response to the vehicle stop request if the vehicle speed is less than or equal to the first vehicle speed threshold in order to reduce the vehicle speed; determining if the vehicle speed is less than or equal to a second vehicle speed threshold after the wheel brake is applied; actuating the parking sprag assembly to stop rotation of the output member of the transmission when the vehicle speed is less than or equal to the second vehicle speed threshold; and wherein the second vehicle speed threshold is less than the first vehicle speed threshold.