are adjusted to move the function upward to 705 thereby reducing u03b4tcl based on tcl and t cl fig8 is a logic flow diagram of a method for controlling a transmission clutch using the updated adapted transfer function as described with reference to fig6 and 7 the clutch control event may include vehicle launch transmission upshifting downshifting or any other drivability control actions clutch control starts at 801 where all the relevant powertrain and transmission variables are initialized at 802 clutch operating conditions xk are determined based on measured data available in the transmission system 2 at 803 a target clutch torque profile ttar is determined for current clutch operating conditions xk for a given drivability control event at step 804 based on the inverse of the clutch transfer function f u2212 1 stored at step 610 control signal profile ucom is determined to realize the target magnitude of clutch torque ttar for the current operating conditions xk at step 805 ttar is corrected based on u03b4t as a feedback signal where g is a control gain note that u03b4t is set to 0 for i 0 at step 806 ucom is commanded for clutch control at step 807 t cl is computed based on tin and tout at step 808 a clutch torque error u03b4t is computed if end of clutch control is reached then the.