GF27.10-P-3017N Function of Power Flow In Reverse Gear Function of Program Selection S

GF27.10-P-3017N Function of power flow in reverse gear Function of program selection "S"
- TRANSMISSION 722.9





The Ravigneaux gear set consists of the following components:
^ Short planet gears (PL2k)
^ Long planet gears (PL21)
^ Small internal-geared wheel (5)
^ Dual planet carrier (6)
^ Sun gear (7)
^ Large internal-geared wheel (8)

The single front planetary gear system consists of the following components:
^ Planet gears (PL9)
^ Internal-geared wheel (12)
^ Planet carrier (13)
^ Sun gear (14)

The single rear planetary gear system consists of the following components:
^ Planet gears (PL6)
^ Internal-geared wheel (9)
^ Planet carrier (10)
^ Sun gear (11)

Power flow in reverse gear, program selection "S", function
The following multi-disk brakes and multi-disk clutches are engaged:
^ BR multi-disk brake BR
^ Multi-disk brake B1 (B1)
^ Multi-disk clutch K3 (K3)

Ravigneaux gear set
The small internal-geared wheel (5) is driven by the transmission input shaft. The long planet gears (PL21) roll over the stalled sun gear (7) and transmit the increased torque and reduced rotational speed as a result to the dual planet carrier (6).

Single rear planetary gear system
The internal-geared wheel (9) rotates at the same speed due to the mechanical connection to the dual planet carrier (6). The planet gears (PL6) roll on the sun gear (11). The sun gear (11) reverses its direction due to the stalled planet carrier (10).

Single front planetary gear system
There is a connection between the sun gear (14) and sun gear (11) via the engaged multi-disk clutch K3 (K3). As a result sun gear (14) rotates at the same speed and direction of rotation as the sun gear (11) and drives the planet gears (PL9). The increased torque and reduced rotational speed as a result are transmitted via the planet carrier (13) to the transmission output shaft. The transmission output shaft therefore rotates in the direction of rotation of the engine at reduced rpm relative to the transmission input shaft.