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dio
 
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Electric cars to be the end of mechanics?

I've been thinking about this lately and just want to run it by all of you.

Electric cars really don't need alot of maintenance. Really I think a properly designed electric car could basically run forever, just with the need for it's batteries and tires to be replaced at specified intervals.

Tesla Roadsters haven't been around long enough for us to know really how long they will last, and even if Tesla Roadsters start crapping out, they were still the first properly done electric vehicle, so who knows about future versions of electric cars. It may take another 10 years for electric vehicles to get to this point, or they may be at this point already, we won't know for sure until we know for sure by an electric car proving the test of time.

But consider these points:

Electric cars don't have transmissions, there is no transmission to go out. I believe the tesla roadster has only two gears in the entire thing. Future electric cars may have none, I know there have been some designs like that from some companies.

Brush less electric motors don't ever really die, and they don't ever really need maintnence. They can die, and they may need maintenance, but this isn't the norm. The only moving part in them is the actual drive shaft and the bearings. The only thing that could really wear down in them are the bearings, but high end bearings can last a really long time. The first thing to go on a tesla drivetrain will probably be the bearings, which I'm assuming high-end bearings like in the Tesla's could literally take decades to wear out. If anyone knows how long exactly bearings like in tesla last I'd be curious to know.

And then what about the prospect of electric cars using magnetic bearings? There will literally be no metal to metal contact anywhere in the drivetrain at that point. The engine and drivetrain would theoretically last as long as the magnets in the car do. We're talking like hundreds of years here without any human intervention or a drop of lubricant in the drivetrain. Only changing of tires and batteries.

What does this kind of stuff mean for the world of car mechanics?

What happens when electric cars, with brushless motors, no transmission, no gears in the entire drive train and all magnetic bearings become standard? Not only is oil going to dissapear as an industry, but car mechanics as well. Les schawb will be around selling tires and batteries, but thats about it.
Old 07-23-2012, 11:07 PM dio is offline  
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Wolfnatas
 
How you gonna charge them batteries? Burning garbage?
Old 07-23-2012, 11:19 PM Wolfnatas is offline  
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dio
 
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How you gonna charge them batteries? Burning garbage?

hydroelectric dams
Old 07-23-2012, 11:28 PM dio is offline  
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Wolfnatas
 
In 2012 less than 8% of our power in the US comes from Hydro electric. Close to 50% from coal burning. 20% from natural gas burning.
Old 07-23-2012, 11:34 PM Wolfnatas is offline  
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dio
 
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In 2012 less than 8% of our power in the US comes from Hydro electric. Close to 50% from coal burning. 20% from natural gas burning.

I don't know about you but 58% of my power is hydroelectric
http://www.instituteforenergyresearc...pdf/Oregon.pdf

If you ain't up to par with us Oregonians you best be gettin your shit together in your state.
Old 07-23-2012, 11:40 PM dio is offline  
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dbu8554
 
I think I have an interesting take on this, I grew up on classics and loved every minute of them for the most part, but for 99% of people out there they are not practical and unneeded (also in the future the current gen of any car will be a classic and applicable to what I am about to say)

Now for that being said most of the shit in cars people dont NEED. I for one cannot fucking wait for electric cars but I dont think anyone will be serious about developing one until we have a real supply problem with fuel for ICE engines.

But I dont want to take gas/diesel powered cars away from their owners when was the last time you saw a car 50 years old driving down the road that was not a weekend cruiser? Not very often? So well thats what it will take we need the technology to make it happen (fast charging, less toxic batteries, complete package of ammenaties) and I think it will adopt well but it will take time most people in my neighborhood drive cars 15 years or older.

It will take a long time for alot of the population to be on board with this BUT I think one thing that will help it immensely and I dont mean to hi-jack your thread. Is self driving cars, get that straightened out, combined with electric (because people are on a whole inefficient as fuck drivers) and we could see some awesome things happen with both.


Computer driven cars need every system to be fly by wire and right now only a few cars offer that, combined with possible government intervention in the design/requirements or ability to shutdown the system are things that will need to be worked out.

Same goes for electric cars as far as implementing it biggest problem right now is obviously charging it at a reasonable rate and getting decent range out of it. Both systems have hurdles to overcome but right not unfortunately we have not been giving a shit until recently.

Also as far as mechanics going out of business as someone who does wrench on cars for a living. Screw em adapt to the changing times or go out of business.

Luckily they will still need things like brakes/tires/alignments/suspension problems and whatnot
but it will take a while to effect the industry as a whole as if you run out of gas you can carry enough gas with you to get 150 miles I dont know how if I ran out of a charge to go and grab 150 miles worth of charge from the local gas station.

Anyways eventually it will happen just a matter of time.

Also the charging thing with electric cars may require a massive retrofit of homes/business to accommodate but I think it will be good apt complex with electric charging stations may be a pain but it will happen.

And as far as people saying it wont happen look at old pictures of NYC before cars filled with horses take a closer look also DC power lines everywhere they ripped that shit out also because it sucked and AC is better things change get over it.

*awaits funny response from tex*

*awaits some retarded statement from range*
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Last edited by dbu8554; 07-24-2012 at 01:00 AM..
Old 07-24-2012, 12:52 AM dbu8554 is offline  
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[H]ard|On
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Yes cars with electric drive and nothing else are a lot simpler. Still they will require service to some extent. Eventually combustion engine mechanics are going to become increasingly more rare.
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Old 07-24-2012, 01:52 AM [H]ard|On is offline  
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gee
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Quote:
Originally Posted by dio View Post
I don't know about you but 58% of my power is hydroelectric
http://www.instituteforenergyresearc...pdf/Oregon.pdf

If you ain't up to par with us Oregonians you best be gettin your shit together in your state.
Oregon has that much hydro because the rivers/reservoirs allow it. Not every state has that luxury.

Also, hydro dams have a fairly big environmental impact - they block fish from migrating up/down rivers, and most hydro stations require a large area of land to be flooded. It's hard to compare the effect to burning a bunch of coal, and it's probably a lot better than that, but don't forget it's there.
Old 07-24-2012, 03:10 AM gee is offline  
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Quote:
Originally Posted by dio View Post
Electric cars really don't need alot of maintenance. Really I think a properly designed electric car could basically run forever, just with the need for it's batteries and tires to be replaced at specified intervals.

so you're an expert mechanical engineer that knows all about cars, specifically electric cars now?

what you think and what is reality have never been the same thing.

edit: as long as it has moving parts, there will be wear and someone will need to be able to fix it. will there be less mechanics? sure. will they go away entirely? not a chance. you even mention that tires and batteries will have to be changed... well who do you think is doing that for 99% of the population? its not going to be the girl who bags your groceries thats for sure. the nature of the job will change somewhat, but it won't disappear entirely. regardless its a very very very very long way off.
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Last edited by Xcric; 07-24-2012 at 03:48 AM..
Old 07-24-2012, 03:37 AM Xcric is offline  
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MazingHL
 
It'll be a long while before combustion engines are too expensive to use.
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Old 07-24-2012, 05:44 AM MazingHL is offline  
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Jehannum
 
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Retarded navel gazing

Right now, most of what mechanics do is drivetrain, and not powertrain related.

You think that electric motors are going to keep Danny Dumbfuck from planting his car in the neighbor's hedge when it's raining out? No, and the same suspension damage will have to be repaired as if Danny had a 4 banger.

Mechanics didn't go away when fuel injection became common (thus negating the need for quarterly tuneups), either.

As long as we still have to transmit power from the motor to the wheels along the various shafts, and power other systems for the car, like radios, air conditioners, and lighting, there's always going to be wear that will require periodic maintenance done by a professional (or at least a motivated amateur) to keep things working correctly.
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Old 07-24-2012, 05:55 AM Jehannum is offline  
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Jehannum
 
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Quote:
Originally Posted by dio View Post
I don't know about you but 58% of my power is hydroelectric
http://www.instituteforenergyresearc...pdf/Oregon.pdf

If you ain't up to par with us Oregonians you best be gettin your shit together in your state.

Yeah, 58% and falling with each ton of sediment that backs up behind the dams. Decreasing capacity over time is a huge problem with hydro.
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Old 07-24-2012, 05:57 AM Jehannum is offline  
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Coqui
 
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Quote:
Originally Posted by dio View Post
I don't know about you but 58% of my power is hydroelectric
http://www.instituteforenergyresearc...pdf/Oregon.pdf

If you ain't up to par with us Oregonians you best be gettin your shit together in your state.

When the entire northern half of your state is responsible for processing all the steel used to make buildings/cars/planes/etc. Then you talk to me about how your hydroelectric works
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Old 07-24-2012, 05:58 AM Coqui is offline  
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joemama
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Quote:
Originally Posted by MazingHL View Post
It'll be a long while before combustion engines are too expensive to use.
^This, and it won't be in our lifetime.

Anything mechanical can and will break down eventually, and that includes electric cars. The business model for mechanics may have to change a bit at some point in the future, but they won't go away completely.
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Old 07-24-2012, 06:27 AM joemama is offline  
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Coqui
 
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People will still need to take it in to check the batteries (because people as a whole don't know how)

They will still need tires, tire rotation, shocks, springs, brakes, etc.

Mechanics will always be in demand.
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Old 07-24-2012, 06:42 AM Coqui is offline  
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