The hydraulic unit (HB) of an automatic transmission (AT) is a device that is responsible for controlling the flow of hydraulic fluid inside the automatic transmission. Main functions of GB in automatic transmission:
* Fluid Distribution: The GB directs fluid flow to various automatic transmission components such as the torque converter, brake bands and clutch packs.
* Pressure Regulation: The GB regulates fluid pressure to ensure smooth gear shifting and proper operation of other components.
* Control functions: The GB contains electronic and mechanical devices that allow you to control the GB and the automatic transmission as a whole. For example, this may include solenoids for shifting gears and sensors for monitoring fluid pressure and temperature.
* Fluid storage: The hydraulic fluid reservoir also serves as a reservoir for hydraulic fluid, allowing it to circulate and lubricate automatic transmission components.
The hydraulic unit is an important component of the automatic transmission, which ensures power transmission and smooth operation of the gearbox. GB malfunctions can lead to a variety of automatic transmission problems, including rough shifting, slipping, fluid leaks and complete breakdown.