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D3 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

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  #21  
Old 29th June 2019, 02:16 PM
MikkiJayne MikkiJayne is offline
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Quote:
Originally Posted by snapdragon View Post
I wonder if they will ever 'virtualise' the ARB and just use damper control? I guess they probably wouldn't be able to react fast enough.
Mclaren have already done it

https://www.roadandtrack.com/new-car...eed-sway-bars/

The new Touareg uses active anti-roll bars, split in half by a 48V electric motor which can vary the effective strength of the bar to suit driving conditions.
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  #22  
Old 29th June 2019, 03:03 PM
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moltuae moltuae is offline
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Or you can do what Citroen did with the 'Activa' system:
https://en.wikipedia.org/wiki/Citro%...anti_roll_bars

Quote:
In the magazine Teknikens Värld's moose test, published in Swedish, the 1999 V6 Activa still holds the record speed through the manoeuvre, faster than the McLaren 675LT.
I owned a Xantia Activa for a while (until an engine remap and an overenthusiastic bit of driving destroyed the engine). Not the fastest of cars but the driving experience was incredible, and rather weird (in a good way). The ride had the usual soft and 'floaty' characteristics of Citroen's hydropneumatic suspension, yet it cornered completely flat, like it was defying gravity. And I mean completely flat. I believe the tolerance was set at something like half a degree of body roll before the hydropneumatic rams activated, instantly stopping any further body roll. Mini roundabouts were the most fun. Despite the Xantia being front-wheel drive and having a natural tendency to understeer, in the Activa form it would take fast, tight turns like it was on rails, with barely any tyre squeal.

A few videos of the Activa system in action:

https://www.youtube.com/watch?v=oMJbUsDZOzI

https://www.youtube.com/watch?v=e0EtQNufzTw

https://youtu.be/oxSnutuWVrk?t=81

When you bear in mind they were not powerful cars (slightly underpowered if anything) and that in normal driving the suspension was so soft and cushioning that you could barely feel pot holes, or even speed bumps, the Activa system did an amazing job of enabling the car to compete with some much more powerful, AWD vehicles.
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Last edited by moltuae; 29th June 2019 at 03:15 PM.
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