AWD Questions ???

[Primotenente]

Originally Posted by FreshShirt

(...) Question: In the 6MT, can one axle ever get more than 50% of the power? (ex: Can the rear axle get 80% power)

Yes. If a loss of traction occurs, the visco lsd will try to lock front and rear axle togeter, to make them rotatate at the same speed. But the locking capacity of the visco lsd is limited. So it is possible, that one axle gets more power than another, e. g. ohne axle on ice, another on dry tarmac and the lsd is not strong enough to prevent this. I do not have accurate figures.

Originally Posted by FreshShirt

Question: In the 6MT, what would happen if the front left tire lost traction?

It will spinn and the front right tire will get low torque, as both wheels will transfer equal power. The visco lsd will try to lock up the open center differential and if the rear axle has traction, the car will move. If one wheel on rear axle does have no traction, the car will not move.

Originally Posted by FreshShirt

Question: In the 6MT, what would happen if the front left tire and the rear left tire both lost traction?

The car is not going to move. If your car is equipped with VDC, VDC will then break down spinning wheels down to try to transfer power to the two other wheels. The same will hapen in the case above.

Originally Posted by FreshShirt

As I understand it, the 6MT sends power 50% front 50% rear all the time; normal conditions or slippage. What happens left to right I don't know.

The two differentials in front and rear axle will devide torque 50:50 between the wheels. If the left one stands on ice an can transmit almost no power, the right one will get the same amount of power, so that the car won't move or only very slow.

Originally Posted by FreshShirt

CVT / AT

As I understand it the AT (3.6R) and the CVT have normal power splits that are not 50/50 but can revert as far back as 50/50 if there is slippage.
Could the CVT ever go from 60% front to 80% front?
Could the AT ever go from 55% rear to 80% rear?

Thanks,
Consider this dead horse beaten.

- The 3.6 with 5-Speed-Automatic is almost like MT. The difference is, that under normal conditions, it devides not 50:50 but 45:55. The second difference is, that the VTD can lockup to almost 100 %, while the viscous lsd can only lock up about 30 %. If there is slippage, the system will lock to 50:50 an later use the VDC to break spinng wheels, if there is still slipperage.

- The CVT (as the active AWD) give power to the front axle. If necessary, 50 % of the power goes to the rear axle. This is a so called hang-on system. The rear axle hangs on the front axle trough a wet clutch. The front axle is always powered and the rear axle cannot have more power than the front axle. It can also lock up to almost 100 %.

My god, i have just recognised, my english has gotten so bad

[FreshShirt]

Thanks