[HN Gopher] Euro 7: Council adopts position on emissions from ca...
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Euro 7: Council adopts position on emissions from cars, vans, buses
and trucks
Author : ianastacio
Score : 26 points
Date : 2023-09-25 21:37 UTC (1 hours ago)
(HTM) web link (www.consilium.europa.eu)
(TXT) w3m dump (www.consilium.europa.eu)
| thatfrenchguy wrote:
| Meanwhile in the United States, even liberal environmentally-
| minded folks think buying a F-150 Lightning is reasonable to go
| to work and the grocery store.
| roamerz wrote:
| Nothing unreasonable about that.. so long as work or the
| grocery store isn't too far away.
| londons_explore wrote:
| How do they plan to measure particle emissions?
|
| Any kind of rolling road is sure to make large numbers of
| particles itself. Besides - most tyre particles are emitted when
| going round corners and accelerating hard to cause wheel slip,
| which can't be done on a rolling road.
|
| Or they do it on a real road - but how many particles will come
| from the tyres and brakes, and how many will come from the road
| itself or other pollution sources?
| actionfromafar wrote:
| I don't know but it's bloody well time. Particles are a bane on
| city life.
| epolanski wrote:
| They are also the primary cause of microplastics pollution.
|
| Anyway, I find it ridiculous that they don't limit the speed
| more, when speed is the primary factor behind unnecessary
| emissions and tyre wear.
| londons_explore wrote:
| For anyone who lives in a city... I'd suggest getting an air
| filter - any pollen/HEPA filter will do a good job of de-
| dusting your house. Just a $20 unit from Amazon will do - put
| it in a hallway and it will get most of your house air as
| long as you don't keep external windows wide open.
|
| As well as keeping your indoor air cleaner, you'll also find
| that you have to clean dust off surfaces less frequently. I
| suspect there are big health benefits too, but can't prove
| that.
|
| After a few months, the filter turns from white to dark grey,
| but I've found it keeps working for even years after that -
| you would expect it to get full and get blocked, but I guess
| tiny particles take a real long time to block it.
| nordsieck wrote:
| > How do they plan to measure particle emissions?
|
| Presumably you weigh the tires at the beginning, and then again
| at the end.
| maccard wrote:
| From the article,
|
| > The Commission should prepare a report on tyre abrasion by
| the end of 2024 to review the measurement methods and state-of-
| the-art in order to propose tyre abrasion limits by December
| 2025 at the latest, should the work on tyre abrasion done at UN
| WP 29 be delayed.
|
| this document isn't them saying "this is how we're going to do
| it", it's saying "this is what we're going to do".
| dappermanneke wrote:
| there's going to be more jobs for ultraspecialised and well
| connected consultants and ngos in brussels is how you can
| read that sentence
| dharmab wrote:
| There are machines designed for testing tires and axles that go
| around corners under load- for example, the fatigue carousel at
| University Gustave Eiffel, currently used to test pavement. I
| could imagine such a machine rolling tires in a closed
| environment and comparing to reference data.
| https://lames.univ-gustave-eiffel.fr/en/equipments/the-pavem...
| londons_explore wrote:
| For every gram of tyre rubber and brake pad that ends up as dust
| in the air, I'd guess 10 grams of road surface end up in the air.
|
| Are they also going to be regulating road surfaces, or is this a
| case of them regulating the easy targets while ignoring
| themselves?.
| mhandley wrote:
| For brakes at least, electric vehicles should permit brake
| emmisions to be reduced significantly. First, you've got
| regenerative braking, so no real need to use friction brakes
| except when braking too hard for regen. But as you've got a good
| supply of electricity, most of the rest of braking could be
| handled by the combination of an induction brake [0] and actively
| powering the motors in reverse, perhaps leaving friction brakes
| just for emergencies.
|
| [0] https://en.wikipedia.org/wiki/Eddy_current_brake
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(page generated 2023-09-25 23:02 UTC)