The operating principle of an automatic transmission (AT) for KAMAZ:
The KAMAZ automatic transmission is based on a hydraulic system that uses fluid to transfer power from the engine to the transmission.
Main components of KAMAZ automatic transmission:
* Torque converter
* Planetary gearbox
* Hydroblock
* Computer control
How the KAMAZ automatic transmission works:
1. Torque converter: Converts torque from the engine and transmits it to the planetary gearbox. This allows the car to move away smoothly without stalling.
2. Planetary gear: Consists of planetary gears, sun gear and ring gear. A planetary gearbox changes the torque and speed ratio between the engine and transmission.
3. Hydraulic unit: Distributes and directs hydraulic fluid to the planetary gearbox, controlling the engagement and disengagement of gears.
4. Control computer: An electronic unit that receives signals from various sensors and controls the valve body to change gears.
Gear shift process:
1. When the driver selects a gear, the control computer sends a signal to the valve body.
2. The hydraulic unit directs hydraulic fluid to the corresponding clutch in the planetary gearbox.
3. The friction clutch closes, connecting the various elements of the planetary gearbox and changing the gear ratio.
4. The car shifts gears smoothly.
Features of KAMAZ automatic transmission:
* Increased efficiency: An automatic transmission transfers more power from the engine to the transmission compared to a manual transmission.
* Ease of operation: The driver can operate the car without manually changing gears.
* Powertrain protection: Automatic transmission can protect the engine from overload and excessive wear.
*Smoother Ride: Automatic transmission provides a smoother and more comfortable ride compared to manual transmission.