Patent ID: 8296020
Filing Date: 2012-10-23
Classification: B60K,F16H,Y02T

Abstract:
1. A method to control torque applied through a powertrain to a driveline, the powertrain comprising a plurality of torque generative devices and a transmission comprising an output shaft, a plurality of planetary gear sets connecting the torque generative devices to the output shaft, a first and second selectable one-way clutches connected to a first of the planetary gear sets, a control module configured to execute the method comprising: monitoring a desired transmission setting selection comprising one of a low range continuously variable gear mode, a high range continuously variable gear mode, and a fixed gear mode, the low range continuously variable gear mode comprising one of the low range continuously variable gear mode operating in a forward configuration with the driveline operating in a forward direction and the low range continuously variable gear mode operating in a reverse configuration with the driveline operating in a reverse direction; determining a desired state for the first and second selectable one-way clutches based upon the desired transmission setting selection; and actuating the first and second selectable one-way clutches to effect the desired state for the first and second selectable one-way clutches comprising,