Pic. 6.12. Elements accessible after removing the center console (AKP): 1– illumination lamp of the scenes of switching; 2 - cover; 3 – parking mode latch; 4 - switching mechanism
In the automatic transmission, a torque converter is located between a number of planetary mechanisms and the engine (hydrodynamic torque converter), which serves to transmit engine torque through the ATF fluid circulating in its working cavities (Automatic Transmission Fluid). The torque converter consists of a pump, a turbine and a reactor. These elements are enclosed within a common housing in such a way that they form a closed oil circulation. The motor drives the pump wheel, which converts mechanical energy into hydraulic energy. A turbine connected to the automatic transmission input shaft transforms this energy into torque. The reactor is located between the pump and the turbine, which always have a certain speed difference. At the start of the car, it is maximum and decreases with increasing speed. Thus, to a certain extent, a slip mode is always present.