SSP363 Audi Q7 - Power Transmission / Transfer Case ... - Volkspage

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20 <strong>Transfer</strong> case 0AQ Design / function The basic design of the self-locking centre differential is identical to that of a simple planet gear train with sun gear, planet gears, planet carrier and ring gear. The planet gears are mounted on the planet carrier. The driving torque is transmitted via the planet carrier. Driving torque to front axle Driving torque to rear axle Sun gear/front axle Friction discs Planet carrier The planet gears engage between the sun gear and the ring gear. The ring gear connects to the rear axle drive. The sun gear connects to the front axle drive. Planet gear Ring gear Drive hub/rear axle Input torque Differential housing 363_018
Asymmetric basic torque distribution The asymmetric basic torque distribution of 42:58 (front axle/rear axle) results from the different pitch circle diameters of the sun gear (drive to front axle) and the ring gear (drive to rear axle). Planet carrier Planet gear Input torque Drive hub/rear axle Pitch circle diameter Lever arm 1 = small pitch circle diameter = short lever arm = low torque (front axle). 2 = large pitch circle diameter = long lever arm = high torque (rear axle) Ring gear Sun gear/ front axle 363_019 21
Page 1 and 2: Service Training Audi Q7 - Power Tr
Page 3 and 4: Contents Introduction Drive concept
Page 5 and 6: One of the primary development goal
Page 7 and 8: The front and rear axle differentia
Page 9 and 10: The 6-speed automatic gearbox 0AT..
Page 11 and 12: Automatic gearbox selector mechanis
Page 13 and 14: DSO images of P/R/N/D/S signals DSO
Page 15 and 16: DSO images of the tiptronic signal
Page 17 and 18: Design / function The transfer case
Page 19: Friction disc Components overview R
Page 23 and 24: Asymmetric/dynamic torque distribut
Page 25 and 26: Example of static torque distributi
Page 27 and 28: Design and function of the gear cha
Page 29 and 30: This is how it works: The upper sha
Page 31 and 32: Service / special tools To avoid ha
Page 33: Electronic Differential Lock EDL On

SSP363 Audi Q7 - Power Transmission / Transfer Case ... - Volkspage

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