Through artificial intelligence and machine learning, transmissions can learn and make adjustments to stored values without those values being explicitly programmed into the transmission's computer (TCU or ECU).

Two important parameters in the operation of an automatic transmission are shift pressure and shift timing.

This shift pressure and timing in the valve body of the automatic transmission controls the application of the clutches.

As automatic transmissions age, their internal parts wear and the transmission fluid also wears out due to heat and sediments. Because of changes in the properties of the fluid, like viscosity and so on, and also due to changes in the tolerance of the internal parts, the fluid pressure and timing changes. The transmission control unit automatically does this adjustment and store it in its memory continuously.

What adaptive transmissions do is to keep learning the shift pressure and timing values and adjust them accordingly by using the new values for the next application of shift pressure and timing. This learning process is continuous as the components and fluid age until the limit is attained. The values can also change when a transmission's component or fluid is replaced.

Through artificial intelligence and machine learning, transmissions can learn and make adjustments to stored values without those values being explicitly programmed into the transmission's computer (Transmission control unit or engine control unit).

Two important parameters in the operation of an automatic transmission are shift pressure and shift timing. This shift pressure and timing in the valve body of the automatic transmission controls the application of the clutches.

Adaptive transmission function should not be confused with another type of vehicle adaptation which is throttle adaptation that has more to do with how responsive the throttle is, based on driving style. It is because of this misconception that there are misleading articles that guide people on resetting transmissions by putting key in ON position and pressing down the throttle.

Advantages of adaptive transmissions

Adaptive transmission function makes the transmission to last longer, enables the use of transmission fluid for a longer period, reduces frequency and cost of maintenance and improves shift feel and comfort.

Adaptive transmissions make maintenance free operation of the transmission possible. This is why many vehicle manufacturers claim to have maintenance free transmissions with lifetime fluids in them.

TRANSMISSION RESET

Resetting a transmission is resetting the transmission's control unit such that the stored shift pressure and timing values that have been learned over time are reset to default values. This is done using a bidirectional diagnostic scan tool that is capable of resetting the transmission.

TRANSMISSION RELEARN

This is the process whereby a transmission relearns new shift pressure and timing values. It continues to learn to fine-tune these values. Relearning in some cars could entail following an instructed driving pattern, usually a drive and stop pattern, a number of times, over a particular distance. In some cars, all you need to do is to drive and the transmission performs the relearn procedure automatically.

WHY TRANSMISSION RELEARN IS NECESSARY?

When any transmission part is replaced or a transmission service is done, performing relearn process is necessary. For instance, when transmission control unit, solenoid, transmission fluid, clutches are changed, this procedure should be carried out. Carrying out reset and relearn is important to prevent transmissions failure because the oil is replaced.