Quote:
Originally Posted by ainarssems
Yes, all open. Lift one wheel in the air and you are not going anywhere it will just spin that 1 wheel at 4x the speed. On the old quattros if you had good grip for at least one rear wheel or both front wheels it would still pull when diffs locked.
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I just read a bit more about the Torsen, it sounds like it will lock up and send power to the front or back whichever has more grip. So it seems that you would have to have one wheel in the air on the rear axle and one in the air on the front to get completely stuck.
Although, reading on, it does seem that you are right, one wheel off the ground situation is not good:
"In the extreme, for a centre differential implementation, complete loss of traction on a single wheel will result in very limited torque to the other three wheels. Audi responded to this limitation for the first Torsen-equipped cars by adding a manually locking rear differential and then later replaced this feature with Electronic Differential Lock (EDL), which is the ability to use the individual wheel brakes (monitored by the ABS sensors) to limit individual wheel spin. EDL was implemented across both front and rear (open) differentials to operate at speeds < 80 km/h. This has the effect of increasing torque from a single low-traction wheel hence allowing more torque to be passed by the Torsen to the remaining high-traction wheels."
6th January 2014, 04:20 PM
Linear Mode
