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Above a standard epicyclic differential design, yes?

The only difference between this and the RR one is the addition of paired planetary gears, which simply preserve rotational direction, and the use of the outside of the ring to provide the input via the chain.

This diagram functions as a differential without any link between the shafts from a VCU, however if you seated a VCU across the output shafts, as per RR, you'd effectively get an auto locking diff, just like RR.

How can this one work, yet the RR one can't possibly??

It would appear they both can. It would seem i am more senile than i thought i was.
 
It would appear they both can. It would seem i am more senile than i thought i was.
Don't worry Wammers, I frequently smack my head over a problem:doh::doh:, only to have someone peer over my shoulder with fresh eyes and go 'there you are' and solve it in an instant.:mad::mad:
 
Don't worry Wammers, I frequently smack my head over a problem:doh::doh:, only to have someone peer over my shoulder with fresh eyes and go 'there you are' and solve it in an instant.:mad::mad:

Thanks for that. For some ridiculous reason i was thinking of it in terms of having no front prop on as was the original senario. When i mentaly put the front prop on all became clear. No fool like an old fool.
 
Hi guys!
Hugely informative thread - what an ingenious system!
One question though: Why do you get torque wind-up if you pop the transmission into low-range on pavement? Does the VCU lock up in low range, preventing the diff from functioning?

Cheers
Henrik
 

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