Automatic TC refers to an automatic gearbox that uses a Torque Converter (TC). This is the traditional type of automatic transmission found in many vehicles. It allows the car to shift gears automatically while driving, making it easier to operate compared to a manual transmission.
Here's a breakdown:
- Torque Converter (TC): This is a fluid coupling that transmits engine power to the transmission. It allows the engine to continue running even when the wheels are stopped, and it multiplies torque to improve acceleration.
- Automatic Gearbox: The gearbox handles the changing of gears automatically, based on the vehicle's speed and engine load.
- Hydraulic System and Planetary Gears: Automatic TCs use a complex hydraulic system to engage and disengage planetary gearsets, which provide different gear ratios. This system handles the shifting process.
Key Features of Automatic TC Transmissions:
- Automatic Gear Changes: The transmission shifts gears without driver input.
- Torque Multiplication: The torque converter multiplies engine torque, especially at low speeds, providing better acceleration.
- Smooth Operation: Shifts are generally smooth and seamless.
- Durability: Automatic TCs are generally robust and reliable, particularly suitable for vehicles with powerful engines.
How it Works:
The engine's power is transferred to the torque converter. Inside the torque converter, fluid is circulated between the impeller (connected to the engine) and the turbine (connected to the transmission). This fluid movement drives the turbine, which then turns the transmission's input shaft. The planetary gearsets within the transmission are engaged and disengaged by the hydraulic system, providing the appropriate gear ratio for the driving conditions.
In summary, an automatic TC transmission provides a convenient and reliable way to drive a vehicle, automatically handling gear changes for the driver.
