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TT-049-0905

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

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  1. TT-049-0905 The 7-speed dual-clutch gearbox 0AM

  2. Contents • Design features • Design • Mechatronics • Oil circuit/hydraulics • System overview

  3. Design features Parking lock Electrical connection Double clutch Mechatronics

  4. 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

  5. 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

  6. Design • Torque input Carrier ring Outer splines Inner splines Drive shafts 1 and 2 Double clutch Dual-mass flywheel

  7. Design • Double clutch Engaging lever K1 Clutch K2 Engaging lever K2 Clutch K1 Drive plate

  8. Design • Clutch K1 Compression plate Drive plate Clutch K1 Diaphragm spring Engaging bearing K1 Input shaft 1 Engaging lever K1

  9. Design • Clutch K2 Compression plate Drive plate Clutch K2 Support point Diaphragm spring Engaging bearing K2 Engaging lever K2 Input shaft 2

  10. Design • Parking lock Return spring for locking pawl Detent springs Actuating pin Locking pawl Parking lock gear

  11. 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

  12. Mechatronics • Location of sensors Clutch travel sensor 1, G617 for K1, clutch travel sensor 2, G618 for K2 Hydraulic pressure sensor for gearbox G270

  13. Mechatronics • Hydraulic control Pressure accumulator Hydraulic pump N435 N438 N434 N440 N439 N436 N433 N437 V401

  14. Mechatronics • Hydraulic pump motor Rotor with permanent magnets Stator Electromagnetic terminal pairs

  15. Oil circuit/hydraulics • Oil circuit Mechatronics module Oil circuit of mechanical gearbox

  16. Oil circuit/hydraulics • Clutch positioner N439for K2 N435for K1 Clutch actuator plunger Piston rod Clutch actuator K1 Clutch actuator K2 Permanent magnet Engagement lever

  17. 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

  18. Thank you

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