a vehicle includes an engine , first clutch , transmission , and controller . the transmission includes a gearbox , position sensors , and a fluid circuit . the gearbox contains a second clutch . the fluid circuit includes a pump and a flow control solenoid valve . the controller opens the valve via flow control signals to allow fluid to pass into or from the particular clutch it feeds . the controller executes steps of a method to determine an actual flow rate through the valve as the clutch moves , and also calculates a compensation scale factor as a ratio of the commanded and actual flow rates . the controller modifies the flow control signals in a subsequent clutch actuation using the compensation scale factor , such as by multiplying a commanded flow rate corresponding to the flow control signals by the compensation scale factor . a system includes rotatable members connected by a clutch , the controller , valve , and position sensor .