What does TCU mean in a car?

1 Answers
DiArabella
07/25/25 4:46am
TCU in a car refers to the automatic transmission control module. It utilizes computer and power electronics drive technology to achieve automatic gear shifting, eliminating differences in drivers' shifting techniques, reducing driver fatigue, enhancing driving safety, and improving vehicle power and fuel efficiency. The TCU consists of a 16-bit or 32-bit processor, signal processing circuits, power drive modules, and other components. There are various types of automatic transmission control modules, such as CVT transmissions, dual-clutch transmissions, AT transmissions, and AMT transmissions. The TCU can monitor certain data, such as engine speed and vehicle speed, and based on this data, it controls the transmission to shift gears.
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