GF27.10-P-2009ACL Power Flow, Function

GF27.10-P-2009ACL Power flow, function
- Transmission 722.618/646/694/696






Power transmission, general
The term "power flow" refers to the transmission paths of driving power and engine torques. The engine torques are transmitted to the drive wheels via the mechanical-hydraulic connection between the engine, torque converter, the downstream transmission and differential.

Power is transferred in the torque converter via the driven impeller by diverting hydraulic fluid to the turbine wheel which is connected to the transmission input shaft.

When the torque converter lockup clutch is engaged, power is transmitted via this mechanical connection. Via the gearwheels of the individual planetary gear sets the torques coming from the converter, depending on the gear ratio and operated shift elements, are passed on to the transmission output shaft with the help of multidisk clutches, multidisk brakes and freewheels.

A reduction of the output speed in the low gears provides lower vehicle speeds with high tractive forces and drive torques at the drive wheels.

Further partial functions are described in separate documents:
^ Power flow in 1st gear, function
^ Power flow in 2nd gear, function
^ Power flow in 3rd gear, function
^ Power flow in 4th gear, function
^ Power flow in 6th gear, function
^ Power flow in reverse gear, transmission mode "S", function
^ Power flow in reverse gear, transmission mode "C", function