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Audi had an interesting proposition regarding making electric cars actually clean the air as opposed to just avoiding emissions: https://www.audi-mediacenter.c

by Tade0 1y ago

Audi had an interesting proposition regarding making electric cars actually clean the air as opposed to just avoiding emissions: https://www.audi-mediacenter.com/en/press-releases/audi-urban-purifier-the-fine-dust-filter-for-electric-vehicles-14949 https://www.audi-mediacenter.com/en/press-releases/audi-urba... ICE cars already do that in a way, as they suck a significant amount of air through their intake filters (CADR = displacement x RPM). Audi's filter was supposed to have been more fine-grained to catch brake dust and tire particles, but sufficient legislation never materialized, so the project was shelved.

nosianu 1y ago
That reminds me of a Louis de Funès movie ("La Zizanie", film de Claude Zidi de 1978) Air cleaning scene: https://youtu.be/lpmxrgrbKDc https://youtu.be/lpmxrgrbKDc (French) (He was responsible for first poisoning the air by burning tires, so that he could demonstrate his machine to the potential Japanese investors) https://en.wikipedia.org/wiki/La_Zizanie_(film) https://en.wikipedia.org/wiki/La_Zizanie_(film) This Audi proposal is somewhat similar in my mind. They want to profit from both parts, providing both the problem and the solution. I'm not against it per se.
- Tade0 1y ago
  You've reminded me that I was taught French early enough to instinctively follow the rhythm of the language, but today that alone won't suffice if the vocabulary isn't there. I've known Louis de Funès from Les Gendarmes and such classics as La Soupe aux choux or L'aile ou la cuisse. I didn't know the movie you linked, but now I'm thinking I'll pick up French again - if only to hear the whole body if his work in its original language.
Schiendelman 1y ago
Wouldn't an electric car with good filtration bringing cabin air in from the outside do this inherently?
- Tade0 1y ago
  The figures are sufficient, but only when the blowers are at full throttle. A room air purifier does around 300m3/h, while the blowers eat through around 150m3/h at max speed. Problem is that hardly anyone uses them like that, considering the noise. Meanwhile a car with a 1.5l engine turning at an average of 1500RPM will suck through 135m3/h. There's no data available for Audi's system, but at this size they could easily go way beyond 300m3/h.
  - Schiendelman 1y ago
    Sure, so maybe an order of magnitude lower impact than a room air purifier. But it sounds like they could conceivably be a net benefit already. Or perhaps once we change tire formulations to be less toxic.

by Tade0 1y ago

nosianu 1y ago

That reminds me of a Louis de Funès movie ("La Zizanie", film de Claude Zidi de 1978) Air cleaning scene: https://youtu.be/lpmxrgrbKDc https://youtu.be/lpmxrgrbKDc (French) (He was responsible for first poisoning the air by burning tires, so that he could demonstrate his machine to the potential Japanese investors) https://en.wikipedia.org/wiki/La_Zizanie_(film) https://en.wikipedia.org/wiki/La_Zizanie_(film) This Audi proposal is somewhat similar in my mind. They want to profit from both parts, providing both the problem and the solution. I'm not against it per se.

Tade0 1y ago
You've reminded me that I was taught French early enough to instinctively follow the rhythm of the language, but today that alone won't suffice if the vocabulary isn't there. I've known Louis de Funès from Les Gendarmes and such classics as La Soupe aux choux or L'aile ou la cuisse. I didn't know the movie you linked, but now I'm thinking I'll pick up French again - if only to hear the whole body if his work in its original language.

Schiendelman 1y ago

Wouldn't an electric car with good filtration bringing cabin air in from the outside do this inherently?

Tade0 1y ago
The figures are sufficient, but only when the blowers are at full throttle. A room air purifier does around 300m3/h, while the blowers eat through around 150m3/h at max speed. Problem is that hardly anyone uses them like that, considering the noise. Meanwhile a car with a 1.5l engine turning at an average of 1500RPM will suck through 135m3/h. There's no data available for Audi's system, but at this size they could easily go way beyond 300m3/h.
- Schiendelman 1y ago
  Sure, so maybe an order of magnitude lower impact than a room air purifier. But it sounds like they could conceivably be a net benefit already. Or perhaps once we change tire formulations to be less toxic.