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Does an automatic transmission have a memory function?

2 Answers

ONadia

09/02/25 2:21am

Automatic transmissions do have a memory function. Main functions: Changing the transmission ratio to expand the range of torque and speed variations of the drive wheels, adapting to frequently changing driving conditions while keeping the engine operating under favorable conditions. It enables the vehicle to reverse while maintaining the same engine rotation direction. Utilizing neutral gear to interrupt power transmission allows the engine to start, shift gears, and facilitates gear changes or power output. Working principle: Manual transmissions primarily consist of gears and shafts, achieving speed and torque variations through different gear combinations. Automatic transmissions (AT), on the other hand, are composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque variations through hydraulic power transmission and gear combinations.

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SanRemington

09/14/25 4:45am

As a long-time car enthusiast, I can tell you directly: automatic transmissions do have something similar to a memory function, called the adaptive learning system. It adjusts the shifting logic based on your driving habits, such as throttle depth, speed changes, and acceleration patterns. For example, if you frequently floor the accelerator, it remembers this and shifts more aggressively to enhance responsiveness; if your driving is gentle, it shifts smoothly to reduce impact. Many modern models like the Toyota Camry or Honda Accord are equipped with this technology, which can optimize fuel efficiency by up to 10% and make the driving experience more personalized. However, it doesn't perfectly memorize all historical data and mainly works based on recent behavior. If you want to reset it, disconnecting the battery or using an OBD diagnostic tool can make the system relearn. When I drive a car with this system, it feels more considerate, making daily commutes much smoother, but don't expect it to remember forever. Regular maintenance ensures it operates correctly and prevents potential issues.

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