AWD and Active Torque Control

TimmyATL

New member
Ok so with the AWD system when inputs to the PCM are correct it sends a signal to the AWD module to command( pulse with modulation ) the Active Torque Coupling which brings in power to the rear end. How fast does this happen once the PCM sees the front wheels slipping (say at a launch at the drag strip) and sends signals for the AWD module to bring in the rear unit. With this being said if at the drag strip and you are able to command on the ATC to 100% which enguages the rear end right off the get go should you be able reduce what front tire spin you do get and launch harder. Just food for thought.
 
If your asking how fast the rear engages, there was a video I believe on this site where a guy captured a slow motion video of him launching in sand. I don't think the front completed half a revolution before the rear end engaged.
 
Using torque pro and the awd % gauge, while brake boosting it was pre-loading 75% to the rears before launch.

Rich

 
glock-coma said:
I believe this is the video you talking about

http://youtu.be/utkvSHeuzlo
That might be the most annoying music I have ever heard in a video. That being said my count of front tire rotations might be different. I got 1.75 approximately before the rears started kicking sand.
 
SVTPete83 said:
glock-coma said:
I believe this is the video you talking about

http://youtu.be/utkvSHeuzlo
That might be the most annoying music I have ever heard in a video. That being said my count of front tire rotations might be different. I got 1.75 approximately before the rears started kicking sand.

Can't assume though that the rear tires aren't engaged before that point ...too many variables to consider.
 
Agreed. If the distribution was rear biased on a power break though,  the rears would spin right off the launch ya?
 
Frozen Taurus said:
SVTPete83 said:
Agreed. If the distribution was rear biased on a power break though,  the rears would spin right off the launch ya?

Correct this is definitely a front biased setup  >:(
I get that. But then I read this...
SHOnUup said:
Using torque pro and the awd % gauge, while brake boosting it was pre-loading 75% to the rears before launch.

Rich
 
SHOnUup said:
75%, as in 75% of what the rear will take. Not 75% of the overall power.

Rich
I'm not sure that is correct on 2013+

I think we may have gotten the Gen 3 jtekt hence the addition of Torque vectoring.

Under heavy throttle, the majority of the power goes to the rear, at least initially.

During lift or very light throttle, the front isn't even active, and during any aggressive throttle input, the rear gets power first.

I feel like the FWD bias is only true if you are driving normally, hammer it and its a completely different animal.

Pretty much everything I felt going on in the 2013 and 2015 is backed up with the new gauge. People love to hate on our AWD, but I think it is a marvel of technology.






 
The video may not be "brake boosting" either. I noticed on my gauge I will not get power transfer to the rear as fast unless I brake boost.

I have managed to slide the tail out a little under hard throttle into corner. So I know there is enough power there to spin the tires slightly.
 
I can understand that you can send power to the rear via the torque coupling. But the drive shaft is driven by the PTU and the PTU is driven by the right side cv shaft. So how would you send LESS power to the front and more to the rear if the rear is driven by the front?
Unless there's some kind of active braking involved like in the Acura's SHAWD which I don't think the 13+ have.
 
glock-coma said:
I can understand that you can send power to the rear via the torque coupling. But the drive shaft is driven by the PTU and the PTU is driven by the right side cv shaft. So how would you send LESS power to the front and more to the rear if the rear is driven by the front?
Unless there's some kind of active braking involved like in the Acura's SHAWD which I don't think the 13+ have.
They do...

"Nothing much has changed in the powertrain department (nothing needed to), but another alleged dynamic enhancement is an electronic torque-vectoring system, wherein light brake pressure on an inside wheel during acceleration out of a curve is meant to shunt some torque through the open differential to the outside wheel"

Read more: http://www.motortrend.com/roadtests/sedans/1203_2013_ford_taurus_sho_first_drive/#ixzz3c0j4FLpE
 
Another question, does the torque vectoring turn off when you activate track mode? Or turn the traction control completely off?
 
I think one way to know is to access the AWD module and monitor the ATC  PID (paramiter identification) and see if it is a On/Off display or a percentage and do a pull and see what it reads. I do not think you can monitor the wheel speed sensors from this module so you will half to listen to the front tires for spin and seat of your pants feel when launching. Then command the ATC PID to 100% and repeat to see what happens or goes snap/crackle or pop LOL. The only way I see how this can be done is with Ford IDS software. I just started this topic to see if anyone was thinking the same thing I was. Fodd for thought
 
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