Jump to content
Naks

Demonstration of Terrain Response in a D4 on rollers

Recommended Posts

Posted (edited)

very interesting to see how it works:

 

 

Edited by Naks
  • Like 1

Share this post


Link to post
Share on other sites

Interesting it copes so much better with one rear wheel with traction vs the scenario with one front wheel with traction. 

Share this post


Link to post
Share on other sites
6 minutes ago, reb78 said:

Interesting it copes so much better with one rear wheel with traction vs the scenario with one front wheel with traction. 

I suspect doing this in a flat tarmac car-park with rollers doesn't fully/properly demonstrate its behaviour.

Share this post


Link to post
Share on other sites
1 hour ago, FridgeFreezer said:

I suspect doing this in a flat tarmac car-park with rollers doesn't fully/properly demonstrate its behaviour.

I should think you are right - On rough ground the traction/lack of would move around quite a lot. Just odd how on identical ground surfaces, it acts quite differently? Almost like it preferentially puts power to the rear, but i dont think thats the case. .

Share this post


Link to post
Share on other sites

Couple of things

1. There's already a leak underneath it :hysterical:

2. It does show how much wheelspin is needed to trigger it which mirrors my experience of the old TC system and my limited experience of the D3. In difficult high load conditions you just get lots of wheelspin on alternating wheels as it jumps around trying to transfer the power, and f all forward motion.

Share this post


Link to post
Share on other sites
23 hours ago, reb78 said:

Interesting it copes so much better with one rear wheel with traction vs the scenario with one front wheel with traction. 

 

yep, that's down to the active rear diff, which locks very quickly to improve traction.

Share this post


Link to post
Share on other sites
13 hours ago, BogMonster said:

It does show how much wheelspin is needed to trigger it

Yeah I was surprised how much wheel spin is allowed before it gets a grip, although I wonder if it would be different if it wasn't the "all-or-nothing" tarmac/roller setup?

Given the TR system knows absolutely loads about what's going on, it knows it's basically flat & level on tarmac so is probably outside its normal behaviour - they surely anticipated the "driver left TR in sand mode and then drove home on tarmac" scenario...

Share this post


Link to post
Share on other sites
16 hours ago, BogMonster said:

2. It does show how much wheelspin is needed to trigger it which mirrors my experience of the old TC system and my limited experience of the D3. In difficult high load conditions you just get lots of wheelspin on alternating wheels as it jumps around trying to transfer the power, and f all forward motion.

Yep.  That is the problem.  When you are on a steep hill and need power, the TC takes it all.  Even on this flat ground, you can hear the engine working hard.  As above the rear locker helps a lot if you have one with that option.

Share this post


Link to post
Share on other sites

That vid shows nothing about how the terrain response system works but shows exactly the traction control system works.

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy