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TT-049-0905. The 7-speed dual-clutch gearbox 0AM. Contents. Design features. Design. Mechatronics. Oil circuit/hydraulics. System overview. Design features. Parking lock. Electrical connection. Double clutch. Mechatronics. Design features. Technical data. Designation: 0AM

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tt 049 0905

TT-049-0905

The 7-speed dual-clutch gearbox 0AM

contents
Contents
  • Design features
  • Design
  • Mechatronics
  • Oil circuit/hydraulics
  • System overview
design features
Design features

Parking lock

Electrical connection

Double clutch

Mechatronics

design features1
Design features
  • Technical data
    • Designation: 0AM
    • Weight: 70 kg including clutch
    • Torque: max. 250 Nm
    • Clutch: 2 x dry-plate clutches
    • Gear stages: 7 x forward, 1 x reverse
    • Operating modes: automatic/tip mode
    • Housing: Aluminium
  • Oil volume and specification
    • Gearbox: 1.7l gear oil
    • Mechatronics: 1l central hydraulic oil
design
Design
  • Diagram showing principle of operation

Output shaft 2

Output shaft 3

Sub-gearbox 2

Input shaft 2

R

4

6

2

Drive plate

K2

Dual mass flywheel

Engine torque

K1

7

3

5

1

Input shaft 1

Sub-gearbox 1

Output shaft 1

design1
Design
  • Torque input

Carrier ring

Outer splines

Inner splines

Drive shafts 1 and 2

Double clutch

Dual-mass flywheel

design2
Design
  • Double clutch

Engaging lever K1

Clutch K2

Engaging lever K2

Clutch K1

Drive plate

design3
Design
  • Clutch K1

Compression plate

Drive plate

Clutch K1

Diaphragm spring

Engaging bearing K1

Input shaft 1

Engaging lever K1

design4
Design
  • Clutch K2

Compression plate

Drive plate

Clutch K2

Support point

Diaphragm spring

Engaging bearing K2

Engaging lever K2

Input shaft 2

design5
Design
  • Parking lock

Return spring for locking pawl

Detent springs

Actuating pin

Locking pawl

Parking lock gear

mechatronics
Mechatronics
  • Location of sensors

Travel sensor 4 for gear actuator G490

Travel sensor 3 for gear actuator G489

Gearbox input speed sensor 2 G612

Gearbox input speed sensor 1 G632

Control unit

Travel sensor 1 for gear actuator G487

Travel sensor 2 for gear actuator G488

Gearbox input speed sensor 3 G641

mechatronics1
Mechatronics
  • Location of sensors

Clutch travel sensor 1, G617 for K1, clutch travel sensor 2, G618 for K2

Hydraulic pressure sensor for gearbox G270

mechatronics2
Mechatronics
  • Hydraulic control

Pressure accumulator

Hydraulic pump

N435

N438

N434

N440

N439

N436

N433

N437

V401

mechatronics3
Mechatronics
  • Hydraulic pump motor

Rotor with permanent magnets

Stator

Electromagnetic terminal pairs

oil circuit hydraulics
Oil circuit/hydraulics
  • Oil circuit

Mechatronics module

Oil circuit of mechanical gearbox

oil circuit hydraulics1
Oil circuit/hydraulics
  • Clutch positioner

N439for K2

N435for K1

Clutch actuator plunger

Piston rod

Clutch actuator K1

Clutch actuator K2

Permanent magnet

Engagement lever

system overview
System overview

J743

E313

J285

G641

G270

V401

G510

N435 N439

G612 and G632

N440 N436

G617 and G618

N438 N434N437N433

G487 to G490

E438 and E439