Automatic transmission with torque converter Nissan
Description
A Nissan torque converter automatic transmission (ATT) is a type of transmission found in many Nissan vehicle models. It consists of several elements, including:
* Torque Converter: A multi-chamber device that transfers power from the engine to the transmission and serves as a clutch.
* Planetary Gears: A set of gears that rotate around a central axis to provide various gear ratios.
* Hydraulic system: Valves, lines and pump that control gears and transmit power.
Operating principle
An automatic transmission with a torque converter works as follows:
1. Engine Start: When the engine starts, the torque converter closes, connecting the engine and transmission.
2. Gear Shift: The hydraulic system controls the flow of fluid through the planetary gears, selecting the appropriate gear based on vehicle speed and load conditions.
3. Power Transmission: The torque converter and planetary gears transmit power from the engine to the wheels.
4. Torque Converter Lockup: At higher speeds, the torque converter locks up, directly connecting the engine and transmission for improved efficiency.
Advantages
Automatic transmissions with a Nissan torque converter have several advantages:
* Smooth Shifting: The torque converter ensures smooth shifting, minimizing shock and lag.
* Convenience: Automatic transmission is more convenient to use than manual transmission, especially in city traffic.
* Engine Protection: The torque converter acts as a buffer between the engine and transmission, protecting the engine from excess load.
Flaws
Automatic transmissions with a torque converter also have some disadvantages:
*Reduced Fuel Efficiency: The torque converter results in some loss of power, which reduces fuel efficiency compared to manual transmissions.
* Increased weight and complexity: Torque converter automatic transmissions are heavier and more difficult to maintain than manual transmissions.
*Higher Cost: Torque converter automatic transmissions are typically more expensive than manual transmissions.
Nissan models with automatic transmission with torque converter
Nissan torque converter automatic transmissions are used in many models, including:
*Altima
* Maxima
*Pathfinder
* Rogue
* Murano
* Armada
*Titan