Can the Computer in a Car Affect Transmission Shifting?

The computer in a car can affect transmission shifting in a number of ways. Here are some examples:

Shifting Patterns

The computer can control the shifting patterns of the transmission. For example, it can determine when to shift up or down gears, and it can also adjust the shift points to improve fuel economy or performance.

Torque Converter Lockup

The computer can control the lockup of the torque converter. The torque converter is a fluid coupling that connects the engine to the transmission. When the torque converter is locked, it creates a direct connection between the engine and transmission, which can improve fuel economy and performance.

Line Pressure

The computer can control the line pressure in the transmission. Line pressure is the hydraulic pressure that is used to engage and disengage the gears in the transmission. By adjusting the line pressure, the computer can control the firmness of the shifts.

Adaptive Learning

Many modern cars have transmissions that use adaptive learning. Adaptive learning allows the transmission to learn the driver’s driving habits and adjust its shifting patterns accordingly. For example, if the driver typically drives in a conservative manner, the transmission will learn to shift up earlier to improve fuel economy. If the driver typically drives in a more aggressive manner, the transmission will learn to shift up later to improve performance.

Conclusion

The computer in a car can have a significant impact on transmission shifting. By controlling the shifting patterns, torque converter lockup, line pressure, and adaptive learning, the computer can help to improve fuel economy, performance, and shift quality.