Measuring car consumption, EU combined cycle

[Christophe]

Here is how the consumption tests of new cars are established by the automakers:



Obviously the reality is almost always beyond the figures given.


Extract from the May / June 2008 S&A Hors Serie dedicated to cars: media / science-and-future-item-on-Gillier-pantone-t5278.html

[Christophe]

An article of the day: http://www.moniteurautomobile.be/actu-a ... -nedc.html

[adomanim]

Generally, the chemical energy available in the fuel is transformed into mechanical energy in the engine and transmitted mainly to the wheels to propel the vehicle and incidentally to auxiliaries which supply energy for other functions (air conditioning , lighting, multimedia equipment, etc.).

The amount of chemical energy consumed (or the volume of fuel) therefore depends on the energy required to move the vehicle and on the efficiency of the heat engine (ratio between the mechanical energy produced and the chemical energy consumed).

[GuyGadebois]

Generally, the chemical energy available in the fuel is transformed into mechanical energy in the engine and transmitted mainly to the wheels to propel the vehicle and incidentally to auxiliaries which supply energy for other functions (air conditioning , lighting, multimedia equipment, etc.).

Ah well then! Come on ...

[Janic]

the WLTP cycle is just another hypocrisy, but only a little bit closer to reality than the NEDC, but none takes into account the maximum speed consumption given by the manufacturers because then the penalty would cost more than the new vehicle!

[GuyGadebois]

the WLTP cycle is just another hypocrisy, but only a little bit closer to reality than the NEDC, but none takes into account the maximum speed consumption given by the manufacturers because then the penalty would cost more than the new vehicle!

We do not care like the year 40 of consumption at maximum speed, given the limitations. If we go this way, the manufacturer also does not give a consumption figure with 5 people on board plus luggage and a double-axle caravan ...

[Janic]

We do not care like the year 40 of consumption at maximum speed, given the limitations.

For France!

If we go this way, the manufacturer also does not give a consumption figure with 5 people on board plus luggage and a double-axle caravan ...

quite right, the gray card must include these criteria and therefore they should also take them into account, that's why, it's phony in terms of pollution measurement and they want to believe in a virtue that they do not have not!

[GuyGadebois]

For France!

And everywhere else in Europe except for a few sections of motorway in Germany.

[Janic]

And everywhere else in Europe except for a few sections of motorway in Germany.

and auto circuits, sports rallies, etc ... which does not change the fact that these measures should be in accordance with the gray card that users or that the limitations use only part of it.

[GuyGadebois]

and auto circuits, sport rallies, etc ...

... you forgot the combine races ...