Thread: Dynamic Stability

Considering it's essentially shock based it adjusts damping rates amongst a few other tricks.

Nothing like a D2 with ACE

Apologies - maybe some terminology needs to be clarified:
Dynamic Stability - uses suspension and ABS
Dynamic Response - uses Active Stabilization System (if fitted).


The Dynamic Response system uses two accelerometers to detect vehicle cornering forces and inputs from the steering angle sensor to supply data to a dynamic response control module. The control module then operates solenoid valves in a valve block which apply hydraulic pressure to actuators fitted to the front and rear stabilizer bars. The application of hydraulic pressure to the actuators applies a specified amount of torque to the stabilizer bars to counteract the cornering forces and minimize vehicle body roll.

Right, so which does your original question relate to?

Cheers,

Gordon

Originally Posted by gghaggis

Right, so which does your original question relate to?

Cheers,

Gordon

We'll get there - eventually!!! Please read the extract below the question - it mentions Stabilizer bars...The control module then operates solenoid valves in a valve block which apply hydraulic pressure to actuators fitted to the front and rear stabilizer bars. The application of hydraulic pressure to the actuators applies a specified amount of torque to the stabilizer bars to counteract the cornering forces and minimize vehicle body roll.

It sounds to me as though there are a number of terms getting confused here.

'ACE' is available on the D2 but there is also a version available for the RRS (IIRC - Standard on the TDV8 & Supercharged).
'DSC - Dynamic Stability Control' is standard on the D3/D4/RRS.

Also, don't forget that the D2 is a live axle where as the T5 platform (D3/D4/RRS) is intepedent, though the air system is designed to mimic the way a live system works with the 'Cross-link valve'.

...and to muddy the waters further, the new RRS does some additional clever stuff in this area when off-road too.

So, I suggest we take a step back and ask the question: What are you trying to do? How did you get to this question??

M

Originally Posted by RainHard

We'll get there - eventually!!! Please read the extract below the question - it mentions Stabilizer bars...The control module then operates solenoid valves in a valve block which apply hydraulic pressure to actuators fitted to the front and rear stabilizer bars. The application of hydraulic pressure to the actuators applies a specified amount of torque to the stabilizer bars to counteract the cornering forces and minimize vehicle body roll.

That's 'ACE'. It is applying additional force through the hydraulic rams, to counteract body roll. The amount of force is calculated by the accelerometers mounted on the chassis.

These are not disconnected in any way.

M

Originally Posted by camel_landy

That's 'ACE'. It is applying additional force through the hydraulic rams, to counteract body roll. The amount of force is calculated by the accelerometers mounted on the chassis.

These are not disconnected in any way.

M

Not mechanically.However in low range the valving is opened to stop the effect of the anti roll bars.
I have a "patch" that I need to get around to fitting from a member here.It allows the unlocking of the bars in high range and at speed too.
Andrew

Thanks Camel Landy,


yes it's the "ACE Equivalent" I'm referring to and the question relates. In the D2 below 10km/hr, in low range the ACE system disconnects the sway bar allowing more articulation. I'd like to know whether this occurs in the RRS version "Active Stabilization System". The reason I think it does is because they state "The system is completely inoperative at speeds below 2 mph (3 km/h)."

I suppose the question to be asked is... how does the swaybar limit articulation in an independent suspension system and will disconnecting it improve performance?