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2. Transmission control unit - Wikipedia

   en.wikipedia.org/wiki/Transmission_Control_Unit

   A transmission control unit (TCU), also known as a transmission control module (TCM), or a gearbox control unit (GCU), is a type of automotive ECU that is used to control electronic automatic transmissions. Similar systems are used in conjunction with various semi-automatic transmissions, purely for clutch automation and actuation.

3. Automatic transmission - Wikipedia

   en.wikipedia.org/wiki/Automatic_transmission

   Electronics began to be more commonly used to control the transmission, replacing mechanical control methods such as spring-loaded valves in the valve body. Most systems use solenoids which are controlled by either the engine control unit, or a separate transmission control unit. This allows for more precise control of shift points, shift ...

4. Mercedes-Benz 7G-Tronic transmission - Wikipedia

   en.wikipedia.org/wiki/Mercedes-Benz_7G-Tronic...

   If the transmission control unit senses a critical fault during driving, it will activate an emergency operating mode: Upon hydraulic failures, it will stop shifting gears and permanently retain the currently selected gear; if the failure can be pinpointed to one of the internal hydraulic control valves, the transmission will continue shifting but stop using the affected gear(s).

5. Electronic control unit - Wikipedia

   en.wikipedia.org/wiki/Electronic_control_unit

   Electric power steering control unit (PSCU) – Generally this will be integrated into the EPS power pack. Human–machine interface (HMI) Powertrain control module (PCM) – Sometimes the functions of the engine control unit and transmission control module (TCM) are combined into a single unit called the Powertrain Control Module. Seat control ...

6. Powertrain control module - Wikipedia

   en.wikipedia.org/wiki/Powertrain_control_module

   A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control ...

7. Automotive electronics - Wikipedia

   en.wikipedia.org/wiki/Automotive_electronics

   These control the transmission system, mainly the shifting of the gears for better shift comfort and to lower torque interrupt while shifting. Automatic transmissions use controls for their operation, and also many semi-automatic transmissions having a fully automatic clutch or a semi-auto clutch (declutching only). The engine control unit and ...