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[deleted] t1_irifzji wrote

Calling it the "most environmentally friendly vehicle" is a lie. That title goes to the humble bicycle, and no car will ever come close no matter how high tech it is.

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duckduckohno t1_iriswrm wrote

What's more environmentally friendly, a bicycle or a pair of roller skates?

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MilesPower t1_iriydzo wrote

Are roller skates a vehicle?

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duckduckohno t1_irj0y67 wrote

Yes, if you were to say, "but roller skates are attached to your feet, if you can't easily get off then it can't be a vehicle" I would argue that wearing a seat belt in a car doesn't disqualify it from being a vehicle.

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MilesPower t1_irj4h29 wrote

Roller skates seem to be considered "personal conveyance" and not vehicles. You're still a pedestrian whilst wearing roller skates and you're not supposed to be on the roads using them whereas a bicycle is, in almost all circumstances, considered a vehicle and you're no longer considered a pedestrian.

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[deleted] t1_irj7u0s wrote

I definitely have Roller skated down bike lanes and low traffic roads. But it's also definitely way less safe than a bicycle.

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Shot-Job-8841 t1_irj3uq2 wrote

Eh, legally it depends where you are. Some places define them as a vehicle, others as a childrens toy. I disagree with the latter definition, but it is the law in some countries.

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[deleted] t1_irj7mks wrote

A bicycle wins because its way more efficient because of the larger wheels and gears. It also doesn't require as much infrastructure to function. Bike can go over dirt and gravel no problem. Good luck rollerskating over any road that's full of potholes and debris.

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Scope_Dog t1_irnzqfl wrote

ok, well it didn't say 'mode of transportation', it said 'vehicle. but yes! I like the way you think.

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[deleted] t1_irioy7q wrote

Exactly, on top of that, why we should believe the guys that use to claim that their diesel engines where the most efficient and low emissions of the world.

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Zebritz92 t1_iri6kqm wrote

A very interesting concept, especially the brakesystem:

They equipped the vehicle with an induction brake, which works magnetically. If you need to brake to a standstill, it'll utilize a clutch-like brake that's part of the drivetrain and submerged in oil. This way, the abbrasions can just be filtered out and never get expelled into the environment.

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SatanLifeProTips t1_irjfaa1 wrote

Why bother with an extra induction braking system when you can build an electric car with 500hp? That gives you 500hp of braking as well as acceleration. A lot of people don’t realize that is a 2 way street on EV’s. The friction brakes are just a backup. And yes those can be enclosed oil bath type since they are used so infrequently.

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Knut79 t1_irjh5v2 wrote

How does brake pads in an oil bath work at -20 to -30 and less celsius?

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SatanLifeProTips t1_irjhk0h wrote

Same way your engine starts at -45. Pick the right oil.

Modern synthetic oils flow at extremely low temperatures just fine.

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Knut79 t1_irji63y wrote

Except engines run extremely bad untill the motor gets warm, motor heaters should be used to reduce excessive wear on the engine during startup and warmup in winter, for diesels a webasto is a preferable solution as it doesn't need electricity, and also because diesel cars may not even start without warming up first.

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SatanLifeProTips t1_irjl2qf wrote

‘Engines running poorly’ when cold is due to condensation of fuel on the cold cylinder walls. Vapour fuel burns, liquid fuel does not burn. That’s why the choke plate added extra fuel on a carb and why your fuel injection needs a coolant temperature sensor to do the same. Nothing to do with cold oil.

The oil flows just fine now. Modern oils have solved those flow problems. Especially synthetics.

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Knut79 t1_irjlixg wrote

If only there was some way to look at the oil in winter and see that it has reduced viscosity as is closer to honey than motor oil...

I don't know... Maybe a stick that also could be used to measure oil level... Seems far fetched.

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SatanLifeProTips t1_irjm1b4 wrote

Or just read the bottle or better yet the SAE engineering data? These are published numbers.

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Knut79 t1_irjmazk wrote

Have you even checked a metering stick at -30?

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SatanLifeProTips t1_irloeo5 wrote

Yes. I also use synthetic oils so that is a non issue. Read the cold weight if your oil. A 15w40is going to be thick. But then you get into a modern 0w40 and it’s super thin when cold. It’s not like gear oil with it’s ‘channel temperature’. And anyone out in the frozen nothing is buying the right oil.

A wet braking system would be using a super thin oil. Like ATF. You don’t want a film like engine oil. That’s what crank bearings use to not contact the metal underneath.

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Zebritz92 t1_irjh3r2 wrote

I'm not sure what led to that decission, but in the end it's a concept vehicle. They mention how braking can affect tyre wear, depending on where they're located. Maybe that's the reason they included this breaking system.

Or maybe they just wanted to try out the technology?

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SatanLifeProTips t1_irjhn0m wrote

The Germans were just excited to over engineer an entirely new system.

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Educational_Sector98 OP t1_iri3drv wrote

The electric car largely reduces the emission of particulate matter and microplastics caused by the abrasion of tyres and brakes, according to the DLR’s official website. I thought I've seen other prototypes years before that made the same innovation, or am i wrong?

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Gay_Genius t1_irixtbq wrote

Why does society refuse to make mass public transit a priority?

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imnotsoho t1_irkaltz wrote

Europe does a decent job. But I have a challenge for you. Take a map of any large metro area in the US and lay out a bus or train map where 90% of the people are with a half mile of a transit line. Works OK in the cities, not so much in the suburbs. Or we could just tear everything down and start all over.

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Notyit t1_irkapsa wrote

We love convience too much.

Only bullet trains would save people time

But the expenses are so great.

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librocubicularist67 t1_irj1qsa wrote

Fuck public transportation. Have you seen the public??

I will not step foot onto mass transit until the US controls the crime/mental illness problem (which will be never). Never again sitting in a metal box that smells like piss with crazy homeless men screaming into void and touching themselves.

Build clean cars and make them mandatory.

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Gay_Genius t1_irj2qmx wrote

I don’t live in America…

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getdafuq t1_irj8o0n wrote

You probably have much better public transit then

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alc4pwned t1_irjb99e wrote

That's not just an American problem, as much as some might like to believe that..

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Gay_Genius t1_irjctrt wrote

Yes and the solution to a mental health crisis is obviously making cars mandatory.

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alc4pwned t1_irjnzp9 wrote

Don’t think I said anything like that. I just think that there a clearly reasons for some people to prefer cars over public transit even in places that do it well.

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tamemadnest t1_irjf2o6 wrote

How delusional are you to think no mental illness exist in your country. Ironically the people that take pot shots at America are those dumber than their perception of America.

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MilkshakeBoy78 t1_irjfgie wrote

> How delusional are you to think no mental illness exist in your country.

where did you come up with that conclusion? obviously that aint true and what's obviously true is parts of america are shitholes

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tamemadnest t1_irjggqs wrote

Your bad faith rebutal to the comment above.

Yes parts of america are shitholes same as every other country. Your point's mute. Exposes you're just another braindead aMeRiCa bAd npc. Now you're bothered by me calling it out which makes sense for people around your IQ.

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MilkshakeBoy78 t1_irjgy1l wrote

it's just a rebutal. how is my rebutal in bath faith?

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tamemadnest t1_irjhi8z wrote

Reread my comment. I told you why.

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MilkshakeBoy78 t1_irjhtpz wrote

> Yes parts of america are shitholes same as every other country.

this? america shouldnt have so many shitholes for being one of the top countries in the world. the point is not mute and not in bad faith...

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tamemadnest t1_irjl3ol wrote

That's such a low level of engagement. That's like saying every country has hospitals so why do people die. Again, people like you that sling americabad as cope/obfuscation for your ignorance/hatred are the problem. Anyone with a good faith engagement doesn't stop at "this is bad, therefore-." They ask "why." When you understand prior obstacles, environmental factors, and local conflicts, you'd never hold the conclusion "this bad, therefore-." All you're doing is misinforming, pushing the normativity of casual america centered hatred. You're unironically bad faith.

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Thorusss t1_irm9q77 wrote

I doubt this vehicle is more environmental friendly than a bike, with the production effort alone.

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FuturologyBot t1_iri5kkd wrote

The following submission statement was provided by /u/Educational_Sector98:

The electric car largely reduces the emission of particulate matter and microplastics caused by the abrasion of tyres and brakes, according to the DLR’s official website. I thought I've seen other prototypes years before that made the same innovation, or am i wrong?

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/xyp7fq/germans_zedu_car_is_most_environmentally_friendly/iri3drv/

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SomeFatLoser t1_irkgywf wrote

I'm not seeing any price on this...not that I'd be able to afford it, but I'm curious how much it costs, anyone know?

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Infinite_Flatworm_44 t1_irlrt2p wrote

How much does it cost to mine all of the components? Who mines the components and from where? How much of those resources are available and how much is estimated to be left on earth? How does this ev charge? Fancy brakes though, just don’t let the net 0 crazies let you know there’s a little oil in there.

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Scope_Dog t1_irnz1x9 wrote

I'm into it! Hope the other car companies will follow suit and adapt these technologies into their own designs.

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