I've only watched the first 30min but here's my thoughts:
- Load of guff up to 21min…
- Conditioning of vehicles doesn’t involve driving it on the autobahn so the exhaust is ‘free and everything’
- The automotive industry have been collectively saying the NEDC isn’t realistic for years
- ‘Trickery on tests’ a large amount of this is based on speculation regarding optimisation on coast down testing. A vehicle is coasted down to calculate is drag coefficients, these are inputted into the test system at a later date when the vehicle is homologated. I.e. if coast down is optimised, the emissions results are improved.
- Diesel in oil… chortles.
- Side mirror removal…
- Tape closed shut lines…
- That’s not quite true. A more realistic optimisation would be selection of components/choices in a standard vehicle brochure, i.e. not picking the widest rubber, additional spoilers, upgraded sound system as a base vehicle to test (light and slippy). Clearly there are hundreds of variations available to the customer, so it’s impractical to test each one. It would come as no surprise that the heavier car with more sticky out spoilers and wider rubber uses more fuel.
- RDE (Real Driving Emissions) has been prevalent in the automotive industry for a few years now
- He misses the point with the Renault, this is the effect of cycle optimisation regarding warm up strategy. The following slide is trying to highlight the delta between the same vehicle run in a 2WD mode, and a 4WD mode. Relevance being apparent difference in emissions between one with 4 wheels spinning, one with only two. That could be interpreted that if the vehicle knows its on test (bonnet up, rear wheels not moving, steering angle 0’ etc) a different calibration is selected to that if it were unknowingly ‘on test’ (bonnet down, all 4 wheels moving) without knowing what coefficients have been loaded into each test, and the conditioning completed before, it’s difficult to draw an accurate conclusion.
- Additional emissions (clean air act etc) due to VW are nigh on impossible to calculate accurately. Won't stop someone trying though!
A debate in the UK Parliment with the SMMT:
http://www.parliamentlive.tv/Event/Index/f2625c4f-c861-459b-9967-9bd6f1e504cbIt is worrying how little understanding the individuals in Government, holding positions of power/authority have regarding the automotive world in my opinion.
Will watch the rest later