Thread: Won’t be retro...

Originally Posted by SBD4

My understanding is that they are two completely different systems with "Active Driveline" being used on the smaller models (Evoque and Disco Sport) and "Active Rear Locking Differential" (ARLD) being used on the larger models (L494/L405/L465).

The Active Driveline allows the AWD system to seamlessly move between 2WD (for efficiency), AWD and fully locked rear Diff. For the D5 you can get the ARLD by ordering the "Capability Pack", on the RSS and FRRR you get the ARLD when you order the a "On/Off Road pack" and is standard in the Dynamic models. The L465/L494/L405 are constant 4WD systems, never 2WD so, the while “Electronic Active Differential with Torque Vectoring by Braking” and "Active Driveline" do similar things they are in fact different in they way they go about it.

You should double-check the brand new RRS spec sheet. It no longer has “Active Rear Locking Differential”. That’s what made me go digging.

I agree with you that what the RRS now has is not exactly what the Evoque has, because of course the RRS gets a centre diff and full-time 4WD. But the rear diff is the thing I’m focusing on.

See in the big picture you posted how the Evoque rear diff has two clutch packs? That’s pretty much the definition of “Electronic Active Differential” if you go do some web searches on the topic. It allows one wheel to be locked in sync with the ring gear while the other can still move independently – they use this lop-sided approach to help with accelerating out of corners, with 100% of torque on the outside wheel and potentially some brakes on the inside wheel to act as a bit of a pivot.

I’m pretty sure that the latest RRS has one of those as a rear diff option. You can of course engage both clutch packs at the same time to get the equivalent of a locked rear for low speed traction situations.

So I’m curious whether the Defender gets this treatment or sticks with a traditional locking diff.

Originally Posted by TB

You should double-check the brand new RRS spec sheet. It no longer has “Active Rear Locking Differential”. That’s what made me go digging.

I agree with you that what the RRS now has is not exactly what the Evoque has, because of course the RRS gets a centre diff and full-time 4WD. But the rear diff is the thing I’m focusing on.

See in the big picture you posted how the Evoque rear diff has two clutch packs? That’s pretty much the definition of “Electronic Active Differential” if you go do some web searches on the topic. It allows one wheel to be locked in sync with the ring gear while the other can still move independently – they use this lop-sided approach to help with accelerating out of corners, with 100% of torque on the outside wheel and potentially some brakes on the inside wheel to act as a bit of a pivot.

I’m pretty sure that the latest RRS has one of those as a rear diff option. You can of course engage both clutch packs at the same time to get the equivalent of a locked rear for low speed traction situations.

So I’m curious whether the Defender gets this treatment or sticks with a traditional locking diff.

I would say it will have whatever is better for all scenerios

Originally Posted by blackrangie

I would say it will have whatever is better for all scenerios

in other words good on road and a compromise for off road !

Originally Posted by goingbush

in other words good on road and a compromise for off road !

No, good in both

Originally Posted by blackrangie

No, good in both

so 'No good' in both, just what I was thinking

Originally Posted by blackrangie

No, good in both

E diff isn't much of an off road compromise.

Originally Posted by goingbush

so 'No good' in both, just what I was thinking

https://www.carscoops.com/2019/06/20...-else-we-know/