Patent ID: 7069767

Claim:
A method of determining an initial transmission calibration of at least two torque-transmitting mechanisms installed in a vehicle on an assembly line' said method comprising the steps of: determining if the vehicle is on the assembly line with the engine at Idle and the transmission in Neutral or Park; fully engaging a first of the torque-transmitting mechanisms; beginning engagement of a second of the torque-transmitting mechanisms to determine a fill-time and apply chamber volume for the second torque-transmitting mechanism by monitoring a speed of a torque converter turbine in said transmission; recording the fill-time and volume; determining the pressure characteristic for the second torque-transmitting mechanism by fully applying both of said torque-transmitting mechanisms, reducing the pressure at the second torque-transmitting mechanism until a first predetermined slip speed occurs at the torque converter, recording the pressure, further reducing the pressure at the second torque-transmitting mechanism until a second predetermined slip speed occurs at the torque converter, recording the pressure; and placing the recorded time, volume, and pressures in the directive cells in the transmission.