Get Power transmission -> Single-speed transmission ? 0MG Guide for Audi RS E Tron Gt 4 Door First Generation (2021-2026)

Convenience CAN, low

CAN bus High (Infotainment)

CAN bus Low (Infotainment)

Single-speed transmission – 0MG

Single-speed transmission – 0MG has the factory designation EQ450-1K. It comprises two planetary gear stages on a common

shaft. They are referred to as the input stage and the output stage.

The planetary gear stages reduce the speed of the electric motor with a reduction ratio of i = 8.053 for forwards driving and revers-

ing.

The torque, which is increased according to the ratio, is transmitted to the wheels via a planetary gear differential.

The transmission unit is flanged onto the electric drive motor; together with the intermediate housing of the electric drive motor,

this forms an area with a separate oil supply. As the gears are submerged in the oil pan, they churn the oil upwards. This lubricates

and cools the components. The gear oil is cooled via the cooling system for the electric drive motor. The heat is exchanged via the

intermediate housing of the electric drive motor.

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Key:

Planetary gear set - output stage

Planetary gear set - input stage

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Transmission schematic

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The electric drive motor transmits the torque via the sun gear into the input stage. The torque is transmitted to the planet carrier

of the output stage via the annulus of the input stage. The planetary gears of the output stage transmit torque to the stationary

annulus and the sun gear of the output stage, which in turn transmit torque to the planet carrier of the input stage. The torque is

transmitted from the planet carrier of the output stage to the planet carrier of the planetary gear differential, and via its differen-

tial gears and sun gear to the axles and the wheels.

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Planetary gear differential

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The torque is transmitted via the planet carrier of the output stage to the differential gears (planetary gears of the differential).

The planet carrier of the output stage also serves as the planet carrier of the planetary gear differential. The differential gears

transmit the torque further to the axles via the sun gears.

Reference

For further information on the planetary gear differential, please refer to SSP 675 “Audi e-tron (type GE)” (refer to arti-

cle “Lightweight planetary gear differential”).

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Power transmission -> Single-speed transmission ? 0MG for Your Audi RS E Tron Gt 4 Door First Generation (2021-2026)