Patent ID: 8849526

Claim:
A vehicle comprising: an internal combustion engine; and a transmission having: a plurality of gear sets each having a plurality of nodes; an input member that is continuously connected to the engine and to one of the gear sets; a binary clutch assembly that is connected to the same gear set as the input member; and a controller in communication with the engine and with the binary clutch, wherein the controller includes a processor and memory with a recorded target slip, and wherein the controller is operable to: detect a requested shift of the transmission into an engine braking state while the vehicle is coasting; command, via the processor, an increase in engine speed toward a target engine speed in response to the detected requested shift; calculate a level of slip across the binary clutch assembly while increasing the engine speed toward the target engine speed; command an application of the binary clutch assembly when the engine output speed reaches the target engine speed; shift the transmission into the engine braking state; and periodically adjust the target engine speed by a calibrated amount until the target slip is achieved at the target engine speed.