2013 Range Rover, the little things, part four, Computer Controlled Active Vanes #NewRangeRover

l405-dragCd

It was this image that lead to this post, can you guess which item caught my interest?

Computer Controlled Active Vanes, described as such:

Active vanes in the main grille optimize aerodynamics by blanking off the grille when cooling airflow isn’t needed.

We’ve actually heard about this before on the Land_E back in 2010:

The ITP Intelligent Thermal Program controls engine parameters including exhaust heat management and cooling system function. Through heat exchangers, the EHRS (Exhaust Heat Recovery System) utilizes what is normally wasted heat from the exhaust system to promote faster engine and gearbox warm-up from cold, with several advantages. In a production application, ITP could also control Active Aero Vanes, which would allow specific sections of the radiator aperture to be closed under certain operating conditions. That would reduce high-drag airflow through the radiator core and engine bay when cooling air is not needed – for instance at low ambient temperatures and when running in low-load conditions. The vanes would also be closed during engine warm-up, again to ensure that the engine reaches optimum operating temperature as quickly as possible. Faster engine and catalyst warm-up significantly reduces emissions in the first minutes after a cold start, and by bringing engine and gearbox oils up to operating temperature more quickly, it reduces mechanical frictional losses.

And a note from the 2013 Range Rover Owner’s Handbook:

To improve aerodynamics, the vehicle is fitted with active vanes that open only when the
engine temperature rises or when the air conditioning is turned on. The active vanes
must be opened manually to allow access to clean any debris from the radiator and the air
conditioning condenser after off-road driving.

1. Start the engine and allow it to run for a few seconds..
2. Switch off the engine.
3. Switch on the ignition.
4. Select Sand mode on the terrain response system.
5. Switch off the ignition.
6. Using a hose pipe, direct clean water through the front bumper (where shown)
to remove mud from the radiator and air conditioning condenser.