Method of determining initial transmission calibration

Details Method of determining initial transmission calibration Method of determining initial transmission calibration

2006-07-04

2006-07-04

Noland, Thomas P. (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Fluid pressure

C073S162000, C073S865900, C702S105000

Reexamination Certificate

active

07069767

ABSTRACT:
A process for learning the pressure and volume characteristics for a given torque-transmitting mechanism is established on the final assembly line wherein a powertrain incorporating the desired transmission learning is installed within a vehicle. During the test process, the vehicle speed is generally maintained at Idle and the vehicle shift mechanism is maintained in Park, thereby mechanically locking the transmission output shaft. The torque-transmitting mechanisms to be learned are then engaged and disengaged in a predetermined sequence and the volume of the torque-transmitting mechanisms and the pressure characteristics of the controlling solenoid are learned.

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