Quote:
Originally Posted by TheRetroGuy
I know electronics control the firmness, but how? My guess is the flow of fluids in the dampers is adjusted by widening/narrowing the valve openings. Am I way off?
This is a fascinating subject to me; I'm surprised how I have not been able to find specifics (at least not where I could understand the person explaining it).
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You are correct that the hydraulic fluid flow within the damper is controlled by valves.
Depending on the system fitted, there is either one or two proportional valves fitted to the dampers. G20 has one valve per damper, controlling both compression and rebound flows. Simply put, each mode (Comfort/Sport) has a specific damper characteristic map, covers a range of control within set parameters. Sensors feed data into the vertical dynamics control module. Signals are processed something like every 2.5ms, the appropriate current is then used for each specific damper, to continuously regulate the valve openings.
G20 also has the Adaptive Mode. This allows an overlap of the two base modes, Comfort and Sport, making it possible to widen the damper maps in real time. The bias still being on comfort, but with more control on demand.