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After 2025, even cleaner cars will arrive with the Euro 7 standard. But the EU proposal makes gasoline, diesel and gasoline / gas cars impossible.
The EU has recently published proposed limits for the Euro 7 emissions standard. The standard, to be introduced in 2025 or somewhat later, promises even less polluting engines and cleaner air. However, the current caused a storm: The proposal does not say that internal combustion cars (gasoline, diesel or gas) will be banned, but in fact it makes them impossible – wrote Vezess.hu.
Perhaps the point in the Euro 7 proposal is the level of nitrogen oxides: since 2014, with the Euro 6 standard, this has been uniformly measured at 80 mg / km for diesel cars and 60 mg / km for gasoline in the laboratory. As of January 1, 2021, a car can emit only 1.43 times the number of mild lab workers in road traffic, so the diesel limit is 114 mg / km, but based on random measurements, even this falls far short of the diesel cars available today. .
With the Euro 7 standard, the least strict limit would be 30 and the most strict 10 mg / km. As early as 2019, diesel engines below 10mg were certified as working, but this limit is ambitious. The novelty and the drawback is that the limits must be put into operation not only by the engine, but also in extreme conditions. Such as gas acceleration on the floor, towing towing uphill, but also must know minus 10 degrees of frost and 40 degrees of heat.
Equivalent to the ban on gasoline, diesel and gasoline-gas cars is the requirement that cars be aware of the strict but achievable limits from the moment the key is turned. Only electric cars can do this, because otherwise efficient exhaust gas removal takes a few minutes, sometimes just seconds, before it warms up and can run efficiently.
SCR systems must be heated to at least 200 degrees to convert toxic nitrogen oxides in exhaust gases into harmless nitrogen and water. After starting the engine, the exhaust heats up the system quickly, but not immediately. According to current regulations, the distance of the road emissions measurement, the RDE test, is at least 16 km, so that the highest values measured at the beginning of the measurement are offset by the lowest ones after the system has heated up. .
On the other hand, the proposal of the EU Commission would reduce the measurement distance from 16 to 5 km, and the distance between the cold start and the clean section would not bring the average NOx below 10, or even below 30 mg / km. If you go through this form, which there are still chances to avoid, only electric cars can remain on sale.
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